Knowles KN Form 10-K filing FY2025

Item 16. Form 10-K Summary 90

PART I

ITEM 1. BUSINESS

Unless the context otherwise requires, references in this Annual Report on Form 10-K to “Knowles,” the “Company,” “we,” “our,” or “us” refer to Knowles Corporation and its consolidated subsidiaries.

Our Company

We are a leading manufacturer of specialty electronic components. We design parts that perform unique, critical functions for innovative technologies. Through extreme reliability, custom engineering, and scalable manufacturing, our high-performance capacitors, radio frequency (“RF”) filters, advanced microphones, and balanced armature speakers enable and enhance the most demanding applications across medtech, defense, industrial, and electrification/energy markets with the power to change, improve, and save lives. Founded in 1946 and headquartered in Itasca, Illinois, Knowles has grown into a global organization with approximately 5,200 employees at facilities located in 11 countries around the world.

Our Strategy

The Company is focused on leveraging its unique technologies to design custom engineered solutions and then deliver them at scale for customers in high growth markets that value our solutions.

In our Precision Devices ("PD") segment, our high-performance capacitors and RF filtering solutions enable some of the most demanding applications in the defense, industrial, medtech, and electrification/energy markets. Our capacitor portfolio includes products with highly specialized requirements including high voltage, high temperature, and high reliability. We also deliver RF filtering solutions across a broad range of applications and frequencies primarily serving the defense market. We continue to focus on sales growth and improved margins by expanding our presence in profitable markets through organic initiatives and acquisitions.

In our Medtech & Specialty Audio ("MSA") segment, our primary focus is to deliver high reliability and industry leading balanced armature speakers and microphones to leading hearing health manufacturers and specialty audio markets. We work collaboratively with customers to ensure that our solutions meet their size, broad frequency response, and low power or custom acoustic module requirements. We continue to focus on sales growth and improved margins by leveraging our core strengths in manufacturing and research and development.

Our Business Segments

We have two reportable segments - Precision Devices ("PD") and MedTech & Specialty Audio ("MSA"). These segments were determined in accordance with Financial Accounting Standards Board Accounting Standards Codification 280 - Segment Reporting. The segments are aligned around similar product applications serving our key end markets to enhance focus on end market growth strategies.

Our reportable segments are as follows:

• PD Segment

Our PD segment specializes in the custom design and delivery of high performance capacitor products and RF solutions primarily serving the defense, industrial, medtech, and electrification/energy markets. PD has sales, support, and engineering facilities in North America, Europe, and Asia as well as manufacturing facilities in North America and Asia.

• MSA Segment

Our MSA segment designs and manufactures balanced armature speakers and microphones used in hearing health and specialty audio applications that serve the medtech and industrial markets. MSA has sales, support, and engineering facilities in North America, Europe, and Asia, as well as manufacturing facilities in Asia.

We sell our products directly to original equipment manufacturers ("OEMs") and through sales representatives and distributors worldwide.

Market Trends

In our PD segment, global conflict has given rise to increasing defense spending on electronic warfare, including an increasing array of new technologies to address rapidly evolving threats and adversaries. Many suppliers that provide technical, engineering, and manufacturing services for the defense sector are located in, or have facilities located in, countries that are viewed as potential strategic adversaries. As a result, there is a rising demand for supply partners throughout the value chain that can reliably and rapidly deliver custom solutions with strong domestic manufacturing footprints.

Within PD, the demand for high performance capacitors, including specialty film, is seeing potentially large growth as alternative technologies emerge to address the accelerating demand for power.

The trend toward domestic manufacturing footprints in the PD segment is amplified and extends across many of the markets we serve by the recent rise of trade barriers, including tariffs, as companies seek to mitigate the effect on their costs and the prices passed through to their customers.

In our MSA segment, as life expectancy rates increase and the aging population grows, the correlating health care expenditures are increasing. These demographic changes and the expansion of hearing health care access in emerging markets is expected to drive volume growth for hearing aids. In addition, recent U.S. government regulations have enabled people with mild hearing loss to buy hearing aids over-the-counter. This opens new channels for individuals in a demographic with extremely low hearing aid adoption, and may serve to reduce the stigma associated with hearing aids.

Competitive Landscape

Success in the specialty electronic components industry is primarily driven by innovation and customization. Our customers drive innovation and change, and with our strong intimacy of customer applications, we are able to produce solutions that are critical for the success and creation of their products. Another of our differentiators is our ability to customize at scale. Through our deep engineering expertise we are positioned to offer our customers uniquely customized components, rooted in the standards of exceptional quality and reliability. Key competitors of our PD segment include: Kyocera AVX, Yageo Corporation's Kemet products, Vishay Intertechnology, and a broad range of specialty companies and brands. Our MSA segment's primary competitor is Sonion.

In the PD segment, the end markets tend to have less pricing pressure. We see a fragmented set of competitors across high end capacitors and RF filters for a diverse set of end markets including defense, medtech, industrial, and electrification/energy.

In the MSA segment, our leading technology and our investments in research and development enable us to introduce new products focused on high reliability, size, broad frequency response, and low power. Our customers are adopting these high-value microphones and balanced armature speakers to improve the overall audio performance of their devices which in turn improves the end user experience. For products that were introduced in prior years, we strive to offset anticipated price erosion through bill of material cost reductions, productivity improvements, and equipment efficiency.

Customers, Sales, and Distribution

We serve customers in the medtech, defense, industrial, and electrification/energy markets. Our customers include some of the largest OEMs and operators in these markets. In addition, many of our OEM customers outsource to contract manufacturers.

We manufacture and develop our products as well as maintain sales and technical customer support offices in North America, Europe, and Asia. We supplement our direct sales force with external sales representatives and distributors. Our global distribution center is located in Penang, Malaysia. Our worldwide sales force provides geographically specific support to our customers and specialized selling of product lines to various customer bases.

The Company's customers that accounted for 10% or more of total revenues in 2025 were WS Audiology A/S and TTI, Inc. WS Audiology is a hearing aid manufacturer and TTI is a distributor of electromechanical components. They each represented the following percentages of total Company revenues:

• Less than 10% of total revenues.

For further detail and for additional disclosures regarding sales and long-lived assets by geographic location, see Note 17. Segment Information to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data."

Raw Materials

We use a wide variety of raw materials, primarily metals, ceramic powder, and semi-processed or finished components. Commodity pricing for various metals, such as palladium, gold, brass, stainless steel, and copper, fluctuates. As a result, our operating results are exposed to such fluctuations. Although some cost increases may be recovered through increased prices to customers, if commodity prices trend upward, we attempt to control such costs through fixed-price contracts with suppliers and various other programs.

We rely on highly specialized suppliers or foundries for critical materials, components, or subassemblies that are used in our products which, in some cases, may be sole sourced from such suppliers or foundries or, such suppliers or foundries may also be a strategic supplier to one of our competitors or a customer. The loss of any single supplier has not had a material impact on operating profits. However, should an event occur which affects the ability or willingness of any supplier or foundry to continue to deliver materials or components to us in a timely manner, we may not be able to identify or qualify an alternative supplier in a timely manner which, in any such period and future periods, could have a material adverse impact on our results of operations. See Item 1A. Risk Factors for additional information regarding risks related to our business.

Research and Development

We concentrate our research and development efforts on the design and development of new products for each of our principal markets. We also fund certain other emerging product and technology opportunities. Our future success is highly dependent upon our ability to develop complex new products, having them selected for design into our customers’ products at competitive prices, transfer new products to volume production, and introduce them into the marketplace in a timely fashion. We may benefit from increasing content in our customers’ products, including assisting our customers with integration of our products into their new products and providing support from the concept stage through design, launch, and production ramp.

Intellectual Property and Intangible Assets

We rely on patent, copyright, trademark, and trade secret laws to protect our intellectual property, products, and technology. Our U.S. patents expire in calendar years 2026 through 2045. While our patents are an important element of our success, our business as a whole is not dependent on any one patent or group of patents. We do not anticipate any material effect on our business due to any patents expiring in 2026, and we continue to obtain new patents through our ongoing research and development. We have maintained U.S. federal trademark registrations for KNOWLES and Knowles logo designs, along with various other trademarks. These U.S. registrations may be renewed as long as the marks continue to be used in interstate commerce. We have also filed or obtained foreign registration for these marks in other countries or jurisdictions where we conduct, or anticipate conducting, international business. To complement our own research and development efforts, we have also licensed and expect to continue to license, a variety of intellectual property and technologies important to our business from third parties. See Item 1A. Risk Factors for additional information regarding risks related to our business.

Cybersecurity

We regularly perform risk assessments relating to cybersecurity and technology risks. We have a risk-based cybersecurity program, dedicated to protecting our data as well as data belonging to our customers and partners. We utilize a defensive in-depth strategy, with multiple layers of security controls to protect our data and solutions. We mitigate cybersecurity risks by employing extensive measures, including employee training, systems monitoring and testing, and maintenance of protective systems and contingency plans. We continually evaluate ourselves for appropriate business continuity and disaster recovery planning, with test scenarios that include tabletop exercise simulations and penetration tests. We also install and regularly update antivirus software on all Company-managed systems to detect and prevent malicious code from impacting our systems.

Seasonality

Our PD segment is not typically subject to seasonality, while our MSA segment tends to have stronger revenues in the fourth quarter of each fiscal year in connection with our customers' new product introductions.

Human Capital Management

As of December 31, 2025, Knowles employed approximately 5,200 employees across facilities located in 11 countries around the world. Our ability to attract, develop, and retain a high‑performing workforce is essential to executing our business strategy and driving sustainable growth. Oversight of our human capital strategy resides with our Chief Human Resources Officer and the Compensation Committee of the Board of Directors.

We recognize that our people are our most valuable asset. To successfully execute our strategy, we implement targeted recruitment efforts to attract top talent with the skills and experience necessary to advance our business objectives. This includes positioning Knowles as an employer of choice through digital platforms, industry events, and university partnerships; leveraging regional talent networks across 11 countries; and utilizing technology‑driven hiring solutions that expand candidate reach, enhance engagement, and accelerate hiring timelines.

We invest in continuous learning and career development to ensure employees have the skills and opportunities to thrive. This includes tuition reimbursement and education assistance programs, structured training focused on technical skills, leadership development and compliance, robust succession planning to prepare future leaders, and mentorship and coaching programs that foster knowledge sharing and career progression.

Knowles is committed to the advancement of women in engineering and the broader representation of women in STEM careers. To help bridge the gender gap and shape the next generation of women technology leaders, we partner with local organizations and universities. For example, Knowles is the perennial sponsor of the University of Illinois at Chicago’s Women in Engineering Summer Program and has supported UIC’s women engineering students through academic scholarships, summer internships, mentorship opportunities, and full‑time employment pathways.

We are also deeply committed to supporting our communities. In 2025, Knowles continued its support of PEAK (Partnership to Educate and Advance Kids), a Chicago‑based nonprofit that provides educational and personal support to underserved students. Knowles pledges $10,000 annually to fund a PEAK student’s high‑quality high school education.

To attract and retain top talent, we offer a competitive total rewards program aligned with our pay‑for‑performance philosophy. Our offerings include base pay, short‑ and long‑term incentive plans, healthcare benefits, retirement plans, paid time off, family leave, and employee assistance programs.

We believe it is important to provide a healthy and safe workplace for our employees. As part of our Environmental, Health, and Safety Policy, we train employees and managers on preventing work-related injuries and illnesses. In addition, our Environmental, Health & Safety ("EHS") Managers across the globe conduct regular reviews of key EHS performance indicators, which include the reporting and correction of any unsafe workplace behaviors, working conditions that could potentially lead to injury, or workplace incidents or illnesses that required first air or other medical treatment.

Additional information regarding Knowles' activities related to its people and sustainability, as well as workforce data, can be found in the Knowles 2025 Corporate Sustainability Report, which is located on our website. The contents of our website and our Corporate Sustainability Report are referenced for general information only and are not incorporated into this Annual Report on Form 10-K.

Other Information

The address of our principal executive offices is 1151 Maplewood Drive, Itasca, Illinois 60143. Our telephone number is 630-250-5100.

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and any amendments to these reports are available, free of charge, on the "Financial Information - SEC Filings” link on the Investor Relations section of our website, www.knowles.com. We post each of these reports on our website as soon as reasonably practicable after the report is filed with or furnished to the Securities and Exchange Commission ("SEC"). The SEC maintains a website that contains these reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC (www.sec.gov).

Our corporate governance policies, Code of Business Conduct, and Board committee charters and policies are also posted on the Investor Relations section of our website. The information contained in, and that can be accessed through our website is not incorporated into and does not form a part of this Annual Report on Form 10-K.

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 1C. CYBERSECURITY

Risk Management and Strategy

As part of our overall risk management program, we have implemented processes to assess, identify, and manage the material risks facing the Company, including from cybersecurity threats. We designed and assess our cybersecurity risk management program based on the National Institute of Standards and Technology Cybersecurity Framework (the "NIST Cybersecurity Framework"). This does not imply compliance with specific technical standards, specifications or requirements of the NIST Cybersecurity Framework, but signifies its use as a guiding principle.

Our commitment extends to various programs and processes to stay informed about and monitor the prevention, detection, mitigation and remediation of cybersecurity incidents. This includes regular scans, penetration tests, and vulnerability assessments to identify any potential threats or vulnerabilities in our systems. We also conduct "tabletop" exercises to simulate cybersecurity incidents to enhance our readiness and resilience in the face of potential cybersecurity threats. These exercises are conducted at both the technical level and senior management level. We have engaged external service providers, where appropriate, including leading cybersecurity firms, to assess, test or otherwise assist with aspects of our security processes.

We have a well-defined cybersecurity incident response plan aimed at facilitating an effective response and handling of cybersecurity incidents. The incident response plan outlines roles and responsibilities, criteria for measuring the severity of a cybersecurity incident, and provides for Audit Committee and Board briefings as appropriate. We have also implemented controls and procedures that provide for the prompt escalation of certain cybersecurity incidents so that decisions regarding the public disclosure and reporting of such incidents can be made by management in a timely manner.

Our employees participate in a security awareness program, receiving training on identifying potential cybersecurity risks and safeguarding our resources and information. This training is reinforced by testing initiatives, including periodic phishing tests. We also assess the cybersecurity risks presented by third parties that could adversely impact our business in the event of a cybersecurity incident affecting those third-party systems. In addition, we maintain business continuity and disaster recovery plans, as well as cybersecurity insurance.

To date, we have not identified risks from cybersecurity threats, including as a result of any previous cybersecurity incidents, that have materially affected or are reasonably likely to materially affect our business strategy, results of operations, or financial condition. That said, while we continually work to safeguard the information systems we use, and the proprietary, confidential and personal information residing therein, and mitigate potential risks, there can be no assurance that such actions will be sufficient to prevent cybersecurity incidents or mitigate all potential risks to such systems, networks, and data or those of our third party providers. See "Item 1A. Risk Factors – Our business and operations could suffer in the event of security breaches, cybersecurity incident, other unauthorized disclosures, or network disruptions."

Governance

The Audit Committee of the Board of Directors considers cybersecurity risk and other information technology risk as part of its risk oversight function. Our head of Internal Audit reports directly to the Audit Committee and is responsible for reviewing with the Committee our company-wide enterprise risk assessment, which includes an evaluation of cybersecurity risks and threats. In addition, the Audit Committee separately receives regular reports from our Chief Information Officer on, among other things, our cybersecurity risks and threats, the status of projects to strengthen our information security systems, and assessments of our security program. The Chair of the Audit Committee regularly reports to the full Board regarding its activities, including those related to our cybersecurity risk management program.

Our management team, led by our Vice President and Chief Information Officer ("CIO"), has operational responsibility for our cybersecurity and information security framework and risk management. Our CIO has extensive cybersecurity knowledge and skills gained from various roles in information technology and security for over 30 years, including serving as the Chief Information Officer at two large public companies. Our CIO is supported by a team of enterprise information system and security risk professionals. The CIO receives regular updates on cybersecurity matters, results of mitigation efforts, and cybersecurity incident response and remediation. He, in turn, provides regular updates on these matters to our Chief Financial Officer and our Chief Transformation Officer and works closely with our Legal department to oversee compliance with legal, regulatory, and contractual security requirements. In addition, in conjunction with Internal Audit, our CIO supervises any retained external cybersecurity consultants.

ITEM 2. PROPERTIES

Our corporate headquarters is located in Itasca, Illinois. Our material properties used in connection with manufacturing, sales, research and development, and corporate administrative operations, and the segments served at that facility, are as follows:

(1) The total square footage (in thousands) for our facilities in China and Malaysia is 495 and 187, respectively. Subsequent to the sale of the Consumer MEMS Microphones business to Syntiant Corp. on December 27, 2024, we lease space in these facilities to the buyer. The square footage above reflects the space in each facility that is occupied by Knowles.

We believe that the owned and leased facilities we utilize are well-maintained and suitable for our operations.

ITEM 3. LEGAL PROCEEDINGS

For a discussion of contingencies related to legal proceedings, see Note 14. Commitments and Contingent Liabilities to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data."

Except as otherwise noted above, there have been no material developments in legal proceedings.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

INFORMATION ABOUT OUR EXECUTIVE OFFICERS

The following sets forth information regarding our executive officers, as of February 9, 2026.

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS, AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is listed on the New York Stock Exchange ("NYSE") under the ticker symbol “KN”.

Dividends

Since our common stock began trading on the NYSE, we have not paid cash dividends and we do not anticipate paying a cash dividend on our common stock in the immediate future. Any determination to pay dividends in the future will be at the discretion of our Board of Directors and will depend on many factors, such as our financial condition, earnings, capital requirements, debt service obligations, industry practice, legal requirements, regulatory constraints, and other factors that the Board of Directors deems relevant. Our ability to pay dividends will depend on our ongoing ability to generate cash from operations and access to the capital markets.

Holders

The number of holders of record of our common stock as of February 5, 2026 was approximately 607.

Recent Sales of Unregistered Securities

None.

Issuer Purchases of Equity Securities

On February 24, 2020, the Company announced that its Board of Directors had authorized a share repurchase program of up to $100.0 million of the Company's common stock. On April 28, 2022, the Company announced that its Board of Directors had increased the authorization by up to $150.0 million in additional aggregate value. On February 13, 2025, the Company announced another authorization increase of up to $150.0 million in additional aggregate value. The timing and amount of any shares repurchased will be determined by the Company based on its evaluation of market conditions and other factors, and will be made in accordance with applicable securities laws in either the open market or in privately negotiated transactions. The Company is not obligated to purchase any shares under the program, and the program may be suspended or discontinued at any time. The actual timing, number, and share price of shares repurchased will depend on a number of factors, including the market price of the Company’s common stock, general market and economic conditions, and applicable legal requirements. Any shares repurchased will be held as treasury stock.

Below is a summary of share repurchases for the three months ended December 31, 2025:

Performance Graph

This performance graph does not constitute soliciting material, is not deemed filed with the SEC, and is not incorporated by reference in any of our filings under the Securities Act or the Exchange Act, whether made before or after the date of this Annual Report on Form 10-K and irrespective of any general incorporation language in any such filing, except to the extent we specifically incorporate this performance graph by reference therein.

Data Source: NYSE

*Total return assumes reinvestment of dividends.

The graph assumes $100 invested on December 31, 2020 in Knowles Corporation common stock, the Dow Jones U.S. Electrical Components & Equipment Index, and the Russell 2000 index.

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The discussion and analysis presented below refer to and should be read in conjunction with our audited Consolidated Financial Statements and related notes under Item 8. "Financial Statements and Supplementary Data." The following discussion contains forward-looking statements. The matters discussed in these forward-looking statements are subject to risks, uncertainties, and other factors that could cause actual results to differ materially from those made, projected, or implied in the forward-looking statements. Factors that could cause or contribute to these differences include those discussed below and elsewhere in this Form 10-K, particularly in “Risk Factors” and “Cautionary Statement Concerning Forward-Looking Statements.”

Management’s discussion and analysis, which we refer to as “MD&A,” of our results of operations, financial condition, and cash flows should be read together with the audited Consolidated Financial Statements and accompanying notes included under Item 8. "Financial Statements and Supplementary Data," to provide an understanding of our financial condition, changes in financial condition, and results of our operations. We believe the assumptions underlying the Consolidated Financial Statements are reasonable. However, the Consolidated Financial Statements included herein may not necessarily reflect our results of operations, financial position, and cash flows in the future.

Our Business

We are a leading manufacturer of specialty electronic components. We design parts that perform unique and critical functions for innovative technologies. Through extreme reliability, custom engineering, and scalable manufacturing, we enable businesses to succeed in the most demanding applications across medtech, defense, industrial, and electrification/energy markets. Our high performance capacitors, radio frequency ("RF") filters, advanced medtech microphones, and balanced armature speakers enable and enhance the performance of technologies with the power to change, improve, and save lives. Our focus on the customer, combined with unique technology, proprietary manufacturing techniques, and global operational expertise, enables us to deliver customized solutions across multiple applications. References to "Knowles," the "Company," "we," "our," or "us" refer to Knowles Corporation and its consolidated subsidiaries, unless the context otherwise requires.

We sell our products directly to original equipment manufacturers ("OEMs") and to their contract manufacturers and suppliers and through distributors worldwide.

Recent Developments

In May 2025, we held an investor day to announce the progress that we have made on our transformation into a premier industrial technology company. Our strategic plan over the last five years was deliberate and paced, starting with a significant shift in investing in research and development and capital expenditures on core technologies. This resulted in a reduction in investment in the consumer market, and an increased investment in our MSA and PD segments. We have aligned our product profile toward the medtech, defense, industrial, and electrification/energy markets, where we see favorable trends. As we focus on what we do best, designing custom engineered products and delivering them at scale for customers and markets that value our solutions, we believe that we are well-positioned for future growth.

Our Business Segments

At December 31, 2025, we had two reporting segments: (i) PD and (ii) MSA. These segments were determined in accordance with Financial Accounting Standards Board Accounting Standards Codification 280 - Segment Reporting. These segments are aligned around similar product applications serving our key end markets to enhance focus on end market growth strategies.

• PD Segment

Our PD segment specializes in the custom design and delivery of high performance capacitor products and RF solutions primarily serving the defense, industrial, medtech, and electrification/energy markets. PD has sales, support, and engineering facilities in North America, Europe, and Asia as well as manufacturing facilities in North America and Asia.

• MSA Segment

Our MSA segment designs and manufactures balanced armature speakers and microphones used in hearing health and specialty audio applications that serve the medtech and industrial markets. MSA has sales, support, and engineering facilities in North America, Europe, and Asia, as well as manufacturing facilities in Asia.

Non-GAAP Financial Measures

In addition to the generally accepted accounting principles ("GAAP") financial measures included in this item, we have presented certain non-GAAP financial measures. We use non-GAAP measures as supplements to our GAAP results of operations in evaluating certain aspects of our business, and our executive management team and Board of Directors focus on non-GAAP items as key measures of our performance for business planning purposes. These measures assist us in comparing our performance between various reporting periods on a consistent basis, as these measures remove from operating results the impact of items that, in our opinion, do not reflect our core operating performance. We believe that our presentation of non-GAAP financial measures is useful because it provides investors and securities analysts with the same information that we use internally for purposes of assessing our core operating performance. The Company does not consider these non-GAAP financial measures to be a substitute for the information provided by GAAP financial results. For a reconciliation of these non-GAAP financial measures to the most directly comparable GAAP financial measures, see the reconciliation included herein.

Results of Operations

Revenues

Revenues for the year ended December 31, 2025 were $593.2 million, compared with $553.5 million for the year ended December 31, 2024, an increase of $39.7 million or 7.2%. PD revenues increased $28.9 million due to higher demand from the medtech, defense, electrification/energy, and industrial markets, as well as higher average pricing. MSA revenues increased $10.8 million, primarily due to higher shipping volumes of metal cans that we manufacture and sell to Syntiant as part of our supply agreement associated with the sale of CMM, and higher shipping volumes into the specialty audio market, partially offset by lower average pricing on mature products.

Cost of Goods Sold

Cost of goods sold ("COGS") for the year ended December 31, 2025 was $332.5 million, compared with $316.8 million for the year ended December 31, 2024, an increase of $15.7 million or 5.0%. This increase was primarily due to higher shipping volumes, unfavorable product mix, and lower than expected yields in our CD business as we ramped up our specialty film product line, partially offset by company-wide product cost reductions, increased factory capacity utilization in our ceramic capacitor and RF filter businesses, a reduction of CD-related acquisition and production transfer costs, and lower precious metal costs.

Impairment Charges

During the year ended December 31, 2025, we recorded an impairment charge of $3.6 million to write down the carrying value of certain machinery and equipment to fair value. For additional information, refer to Note 1. Summary of Significant Accounting Policies to our Consolidated Financial Statements.

Restructuring Charges

During the year ended December 31, 2025, we recorded restructuring charges of $0.8 million within Gross profit and $3.0 million within Operating expenses, primarily related to headcount reductions across the Company to rightsize operating expenses subsequent to the sale of CMM. For additional information, refer to Note 9. Restructuring and Related Activities to our Consolidated Financial Statements.

During the year ended December 31, 2024, we recorded restructuring charges of $2.0 million related to headcount reductions and $1.4 million for costs associated with transferring certain capacitors manufacturing to existing facilities to further optimize operations within our PD segment. These actions resulted in restructuring charges of $1.9 million within Gross profit and $1.5 million within Operating expenses. For additional information, refer to Note 9. Restructuring and Related Activities to our Consolidated Financial Statements.

Gross Profit and Non-GAAP Gross Profit

Gross profit for the year ended December 31, 2025 was $256.3 million, compared with $234.8 million for the year ended December 31, 2024, an increase of $21.5 million or 9.2%. Gross profit margin (gross profit as a percentage of revenues) for the year ended December 31, 2025 was 43.2%, compared with 42.4% for the year ended December 31, 2024. The increase in gross profit and gross profit margin were primarily due to higher shipping volumes, company-wide product cost reductions, increased factory capacity utilization in our ceramic capacitor and RF filter businesses, a reduction of CD-related acquisition and production transfer costs, higher average pricing in PD, and lower precious metal costs, partially offset by unfavorable product mix, lower-than-expected yields in our CD business as we ramped up our specialty film product line, lower average pricing on mature products in the MSA business, and impairment charges in 2025.

Non-GAAP gross profit for the year ended December 31, 2025 was $263.7 million, compared with $245.4 million for the year ended December 31, 2024, an increase of $18.3 million or 7.5%. Non-GAAP gross profit margin (non-GAAP gross profit as a percentage of revenues) for the year ended December 31, 2025 was 44.5%, compared with 44.3% for the year ended December 31, 2024. The increases in non-GAAP gross profit and non-GAAP gross profit margin were primarily due to higher shipping volumes, company-wide product cost reductions, increased factory capacity utilization in our ceramic capacitor and RF filter businesses, higher average pricing in PD, and lower precious metal costs, partially offset by unfavorable product mix, lower-than-expected yields in our CD business as we ramped up our specialty film product line, and lower average pricing on mature products in the MSA business.

Research and Development Expenses

Research and development expenses for the years ended December 31, 2025 and 2024 were $40.2 million and $39.5 million, respectively, an increase of $0.7 million or 1.8%. Research and development expenses as a percentage of revenues for the years ended December 31, 2025 and 2024 was 6.8% and 7.1%. The increase in expenses was primarily driven by increased development activities as we continue to invest in our businesses and higher incentive compensation. The decrease in expenses as a percentage of revenues was driven by higher revenues.

Selling and Administrative Expenses

Selling and administrative expenses for the year ended December 31, 2025 were $142.8 million, compared with $142.0 million for the year ended December 31, 2024, an increase of $0.8 million or 0.6%. Selling and administrative expenses as a percentage of revenues for the years ended December 31, 2025 and 2024 were 24.1% and 25.7%, respectively. The increase in expenses was primarily driven by the acceleration of stock-based compensation expense for employees who are nearing or have reached retirement eligibility and higher incentive compensation, partially offset by a reduction of CD-related acquisition costs, the benefits of restructuring actions, and reduced intangible amortization costs. The decrease in expenses as a percentage of revenues was driven by higher revenues.

Interest Expense, net

Interest expense, net for the year ended December 31, 2025 was $9.3 million, compared with $16.3 million for the year ended December 31, 2024, a decrease of $7.0 million or 42.9%. The decrease is due to lower imputed interest expense on our Seller Note from the CD acquisition, a lower outstanding revolving credit facility balance, and lower interest rates during the year ended December 31, 2025. For additional information on borrowings and interest expense, refer to Note 11. Borrowings to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data."

Dividend Income

Dividend income for the year ended December 31, 2025 was $6.2 million due to a non-cash dividend on the Syntiant investment in the form of additional Series D-2 shares.

Other Expense, net

Other expense for the year ended December 31, 2025 was $3.2 million, compared with $0.8 million for the year ended December 31, 2024, a change of $2.4 million. Expense in both 2025 and 2024 is primarily due to unfavorable foreign currency exchange rate changes, partially offset by unrealized gains in our investment balances.

Provision for Income Taxes and Non-GAAP Provision for Income Taxes

The effective tax rate ("ETR") for the year ended December 31, 2025 was 20.5% or a $13.1 million tax provision, compared with 32.6% or a $11.3 million tax provision for the year ended December 31, 2024. The change in the ETR was primarily related to a decrease in U.S. Subpart F income and U.S. Global Intangible Low-Taxed Income inclusions compared to 2024. The change in ETR was also impacted by the mix of earnings and losses by taxing jurisdictions.

The non-GAAP ETR for the year ended December 31, 2025 was 11.8% or a $13.1 million tax provision, compared with 8.4% or a $7.7 million tax provision for the year ended December 31, 2024. The change in the non-GAAP ETR was primarily due to decreased utilization of foreign tax credits compared to the prior year. As of December 31, 2025, the foreign tax credits have been fully utilized, and we expect the future non-GAAP ETR to increase.

On July 4, 2025, the One Big Beautiful Bill Act was signed into U.S. federal law. The One Big Beautiful Bill Act did not have a material impact on the Company’s fiscal 2025 financial statements and, based on our analysis, we do not anticipate a material impact on subsequent years.

Earnings from Continuing Operations

Earnings from continuing operations for the year ended December 31, 2025 was $50.9 million, compared with $23.4 million for the year ended December 31, 2024, an increase of $27.5 million. As described above, the increase was primarily due to higher gross profit, lower interest expense, and dividend income recorded in 2025, partially offset by higher operating expenses, other expense, and income tax expense.

Earnings and Adjusted Earnings from Continuing Operations Before Interest and Income Taxes

Earnings before interest and income taxes from continuing operations ("EBIT") for the year ended December 31, 2025 was $73.3 million, compared with $51.0 million for the year ended December 31, 2024, an increase of $22.3 million or 43.7%. EBIT margin (EBIT from continuing operations as a percentage of revenues) for the year ended December 31, 2025 was 12.4%, compared with 9.2% for the year ended December 31, 2024. The increase in EBIT and EBIT margin was primarily due to improved operating leverage on higher revenues, higher gross profit, and dividend income recorded in 2025.

Adjusted earnings before interest and income taxes ("Adjusted EBIT") from continuing operations for the year ended December 31, 2025 was $120.1 million, compared with $107.9 million for the year ended December 31, 2024, an increase of $12.2 million or 11.3%. Adjusted EBIT margin (adjusted EBIT from continuing operations as a percentage of revenues) for the year ended December 31, 2025 was 20.2%, compared with 19.5% for the year ended December 31, 2024. The increase in Adjusted EBIT and Adjusted EBIT margin was primarily due to improved operating leverage on higher revenues and higher non-GAAP gross profit.

Loss from Discontinued Operations, net

Loss from discontinued operations for the year ended December 31, 2025 was $6.7 million, compared with a loss of $261.2 million for the year ended December 31, 2024. Loss from discontinued operations for the year ended December 31, 2025 was primarily driven by adjustments to the loss on sale of CMM and tax expense. Loss from discontinued operations for the year ended December 31, 2024 was primarily driven by CMM goodwill impairment charges and tax expense, partially offset by income from CMM operations prior to disposal and a gain on sale of technology. For additional information, refer to Note 2. Discontinued Operations to our Consolidated Financial Statements.

Diluted Earnings per Share from Continuing Operations and Non-GAAP Diluted Earnings per Share

Diluted earnings per share from continuing operations was $0.58 for the year ended December 31, 2025, compared with $0.26 for the year ended December 31, 2024, an increase of $0.32. As described above, the improvement is primarily due to higher gross profit, lower interest expense, dividend income recorded in 2025, and reduced share count, partially offset by higher operating expenses, other expense, and income tax expense.

Non-GAAP diluted earnings per share for the year ended December 31, 2025 was $1.11, compared with $0.92 for the year ended December 31, 2024, an increase of $0.19. As described above, the improvement is primarily due to higher non-GAAP gross profit, lower interest expense, and reduced share count, partially offset by higher non-GAAP income tax expense, non-GAAP operating expenses, and other expense.

Reconciliation of GAAP Financial Measures to Non-GAAP Financial Measures (1)

(1) In addition to the GAAP financial measures included herein, Knowles has presented certain non-GAAP financial measures that exclude certain amounts that are included in the most directly comparable GAAP measures. Knowles believes that non-GAAP measures are useful as supplements to its GAAP results of operations to evaluate certain aspects of its operations and financial performance, and its management team primarily focuses on non-GAAP items in evaluating Knowles' performance for business planning purposes. Knowles also believes that these measures assist it with comparing its performance between various reporting periods on a consistent basis, as these measures remove from operating results the impact of items that, in Knowles' opinion, do not reflect its core operating performance. Knowles believes that its presentation of non-GAAP financial measures is useful because it provides investors and securities analysts with the same information that Knowles uses internally for purposes of assessing its core operating performance.

(2) Production transfer costs represent duplicate costs incurred to migrate manufacturing to existing facilities.

(3) These expenses are related to the acquisition of CD by the PD segment. These expenses include ongoing costs to facilitate integration, the amortization of fair value adjustments to inventory, and costs incurred by the Company to carry out this transaction.

(4) Transition services represent amounts charged to Syntiant in connection with post-closing transition and separation costs.

(5) Other expenses include non-recurring professional service fees related to the execution of various reorganization projects and foreign currency exchange rate impacts on restructuring balances.

(6) During the year ended December 31, 2025, the Company recorded a non-cash dividend on the Syntiant investment in the form of additional Series D-2 shares with a value of $6.2 million.

(7) Income tax effects of non-GAAP reconciling adjustments are calculated using the applicable tax rates in the jurisdictions of the underlying adjustments. In 2023, these adjustments include one-time tax benefits.

(8) The non-GAAP reconciling adjustments include stock-based compensation expense, intangibles amortization expense, impairment charges, restructuring charges, production transfer costs, acquisition-related costs, and other expenses, partially offset by dividend income and a credit to transition services.

(9) In the third quarter of 2025, the Company modified its calculation method of non-GAAP diluted average shares outstanding to exclude the potential dilution impact from performance share units ("PSUs") as these equity awards have not yet been earned. Our PSUs are market-based awards and have fluctuated based on the Company's total shareholder return performance relative to the Russell 2000 during the measurement period. The calculation methodology change in non-GAAP diluted average shares outstanding increased non-GAAP diluted earnings per share by $0.01 for the year ended December 31, 2024.

(10) The number of shares used in the diluted average shares outstanding calculations on a non-GAAP basis excludes the impact of stock-based compensation expense expected to be incurred in future periods and not yet recognized in the financial statements, which would otherwise be assumed to be used to repurchase shares under the GAAP treasury stock method. Non-GAAP diluted average shares outstanding also excludes the impact of certain equity awards that are not yet earned.

Segment Results of Operations

Precision Devices

Revenues

PD revenues were $328.9 million for the year ended December 31, 2025, compared with $300.0 million for the year ended December 31, 2024, an increase of $28.9 million or 9.6%. Revenues increased due to higher demand from the medtech, defense, and industrial markets, as well as higher average pricing.

Earnings and Adjusted Earnings from Continuing Operations Before Interest and Income Taxes

PD EBIT from continuing operations was $37.6 million for the year ended December 31, 2025, compared with $14.8 million for the year ended December 31, 2024, an increase of $22.8 million or 154.1%. EBIT margin for the year ended December 31, 2025 was 11.4%, compared with 4.9% for the year ended December 31, 2024. The increases were primarily due to higher gross profit and lower operating expenses. The gross profit increase was primarily driven by higher shipping volumes, increased factory capacity utilization in our ceramic capacitor and RF filter businesses, higher product cost reductions, higher average pricing, lower CD-related acquisition and production transfer costs, reduced precious metal costs and restructuring charges, partially offset by unfavorable product mix and lower than expected yields in our CD business as we ramped up our specialty film product line. The lower operating expenses were primarily driven by a reduction of CD acquisition-related costs, partially offset by higher incentive and stock-based compensation.

PD Adjusted EBIT was $63.3 million for the year ended December 31, 2025, compared with $50.0 million for the year ended December 31, 2024, an increase of $13.3 million or 26.6%. Adjusted EBIT margin for the year ended December 31, 2025 was 19.2%, compared with 16.7% for the year ended December 31, 2024. The increases were primarily due to higher non-GAAP gross profit and lower non-GAAP operating expenses. The non-GAAP gross profit increase was primarily driven by higher shipping volumes, increased factory capacity utilization in our ceramic capacitor and RF filter businesses, higher product cost reductions, higher average pricing, and lower precious metal costs, partially offset by unfavorable product mix and lower than expected yields in our CD business as we ramped up our specialty film product line. The lower non-GAAP operating expenses were primarily driven by a reduction of CD acquisition-related costs, partially offset by higher incentive compensation.

MedTech & Specialty Audio

Revenues

MSA revenues were $264.3 million for the year ended December 31, 2025, compared with $253.5 million for the year ended December 31, 2024, an increase of $10.8 million or 4.3%. Revenues increased primarily due to higher shipping volumes of metal cans that we manufacture and sell to Syntiant as part of our supply agreement associated with the sale of CMM and higher shipping volumes into the specialty audio market, partially offset by lower average pricing on mature products.

Earnings and Adjusted Earnings from Continuing Operations Before Interest and Income Taxes

MSA EBIT from continuing operations was $92.7 million for the year ended December 31, 2025, compared with $97.5 million for the year ended December 31, 2024, a decrease of $4.8 million or 4.9%. EBIT margin for the year ended December 31, 2025 was 35.1%, compared with 38.5% for the year ended December 31, 2024. The decreases were primarily due to lower gross profit and higher operating expenses. The gross profit decrease was primarily due to lower average pricing on mature products, higher factory costs, unfavorable product mix, impairment charges recorded in the second quarter of 2025, and the impact of higher shipping volumes of our lower margin metal can products to Syntiant, partially offset by product cost reductions and higher shipping volumes of specialty audio products. The higher operating expenses were primarily driven by dis-synergies following the sale of CMM and higher stock-based compensation.

MSA Adjusted EBIT of $102.4 million for the year ended December 31, 2025 was relatively flat compared with $102.3 million for the year ended December 31, 2024. Adjusted EBIT margin for the year ended December 31, 2025 was 38.7%, compared with 40.4% for the year ended December 31, 2024. The decrease in Adjusted EBIT margin was driven by lower average pricing on mature products, higher factory costs, unfavorable product mix, and the impact of higher shipping volumes of our lower margin metal can products to Syntiant, partially offset by product cost reductions and higher shipping volumes of specialty audio products. The increase in operating expenses was primarily driven by dis-synergies following the sale of CMM.

Liquidity and Capital Resources

Historically, we have generated and expect to continue to generate positive cash flow from operations. Our ability to fund our operations and capital needs will depend on our ongoing ability to generate cash from operations and access to capital markets. We believe that our future cash flow from operations and access to capital markets will provide adequate resources to fund our working capital needs, capital expenditures, strategic investments, and share repurchases. We have secured a revolving line of credit in the United States from a syndicate of commercial banks to provide additional liquidity. Furthermore, if we were to require additional cash above and beyond our cash on the balance sheet, the free cash flow generated by the business, and availability under our revolving credit facility, we would most likely seek to raise long-term financing through the U.S. debt or bank markets.

On December 27, 2024, we completed the sale of CMM to Syntiant for approximately $141.9 million in total consideration, consisting of $63.6 million in cash ($58.0 million net of cash sold), Syntiant Series D-2 preferred stock with a fair value of $77.2 million, and $1.1 million for estimated purchase price adjustments. The purchase price adjustment is still being finalized and is subject to change. For additional information, refer to Note 2. Discontinued Operations to our Consolidated Financial Statements. The Company shares in certain separation costs pursuant to a credit for up to $13.5 million that Syntiant may apply to specified separation costs post-closing. As the balance of the separation credit is now below the $7.0 million contractual threshold, costs will be shared equally by the Company and Syntiant. For additional information, refer to Note 1. Summary of Significant Accounting Policies to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data.

On November 1, 2023, we acquired (i) all the issued and outstanding shares of Kaplan Electronics, Inc. and (ii) certain assets of Cornell Dubilier Electronics, Inc. and CD Aero, LLC (collectively, "Cornell Dubilier" or "CD") for aggregate consideration of $259.8 million, which equated to a total fair value of consideration transferred of $246.8 million. This acquisition's operations are included in the PD segment. For additional information, refer to Note 3. Acquisition to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data."

On September 25, 2023, the Company amended its Amended and Restated Credit Agreement (the "A&R Credit Agreement") to, among other things, (a) permit the Company in connection with the acquisition of Cornell Dubilier, to incur senior priority seller financing indebtedness (the “Seller Note”) in an aggregate principal amount of $122.9 million secured by certain assets (including equity interests) acquired in connection with such acquisition and the capital stock of Cornell Dubilier, LLC (the “Acquisition Assets”), which matured two years after the effective date of such Seller Note (the “Seller Note Maturity Date”) and (b) extend the requirement to pledge the Acquisition Assets that would otherwise constitute collateral under the Credit Agreement to the date that is 90 days after the Seller Note Maturity Date. All other terms remain the same as the A&R Credit Agreement dated February 8, 2023.

On February 8, 2023, we entered into the A&R Credit Agreement that amends and restates the prior Credit Agreement (the "2020 Credit Agreement"), which provides for a senior secured revolving credit facility with borrowings in an aggregate principal amount at any time outstanding not to exceed $400.0 million. As of December 31, 2025, outstanding borrowings under the Credit Facility were $114.0 million. At any time during the term of the Credit Facility, we may request to increase the commitments under the Credit Facility or to establish one or more incremental term loan facilities under the Credit Facility in an aggregate principal amount not to exceed the sum of $200.0 million, plus additional amounts, so long as the senior secured leverage ratio does not exceed 2.00 to 1.00. Commitments under the Credit Facility will terminate, and loans outstanding thereunder will mature, on February 8, 2028. For additional information, refer to Note 11. Borrowings to our Consolidated Financial Statements.

On February 24, 2020, we announced that our Board of Directors had authorized a share repurchase program of up to $100.0 million of our common stock. On April 28, 2022, we announced that our Board of Directors had increased the authorization by up to $150.0 million in additional aggregate value. On February 13, 2025, the Company announced that its Board of Directors had increased its share repurchase authorization by an additional $150.0 million in additional aggregate value. At December 31, 2025, we have $129.0 million remaining that may yet be purchased under our share repurchase program. The timing and amount of any shares repurchased will be determined by us based on our evaluation of market conditions and other factors, and will be made in accordance with applicable securities laws in either the open market or in privately negotiated transactions. We are not obligated to purchase any shares under the program, and the program may be suspended or discontinued at any time. The actual timing, number, and share price of shares repurchased will depend on a number of factors, including the market price of our common stock, general market and economic conditions, and applicable legal requirements. Any shares repurchased will be held as treasury stock. During the years ended December 31, 2025, 2024, and 2023 we repurchased 3,571,865, 2,987,697, and 2,851,604 shares of common stock, respectively, for a total of $65.0 million, $53.7 million, and $47.5 million, respectively.

Cash flows from operating, investing, and financing activities as reflected in our Consolidated Statements of Cash Flows are presented on a consolidated basis (including discontinued operations). Cash flows are summarized in the following table:

Operating Activities

Cash provided by operating activities adjusts net earnings for certain non-cash items, including impairment charges, depreciation expense, amortization of intangible assets, stock-based compensation, changes in deferred income taxes, dividend income, and the effects of changes in operating assets and liabilities. The decrease in cash provided by operating activities in 2025 is primarily due to $32.5 million of payments in 2025 to settle supplier obligations and separation costs related to CMM, the absence of $24.4 million of cash generated by CMM in 2024, and an increase in net working capital. This decrease was partially offset by higher 2025 earnings from continuing operations and customer prepayments of $19.8 million. In addition, the Company's 2025 payments for taxes, interest, incentive compensation, and restructuring charges were all lower than 2024.

Investing Activities

The cash used in investing activities during 2025 was driven by capital expenditures, which is primarily driven by capacity expansion related to our specialty film product line and cost savings. The cash provided by investing activities in 2024 is driven by the proceeds from the sale of CMM and proceeds from the sale of technology, partially offset by capital expenditures and payments to finance the seller loan to Syntiant in conjunction with the sale of CMM.

Our 2025, 2024, and 2023 capital expenditures attributable to continuing operations as a percentage of revenues (see Adjusted free cash flows below) were 5.4%, 2.1%, and 2.7%, respectively. In 2026, we expect capital expenditures to be in the range of 4% to 5% of revenues. We expect to fund these capital expenditures through our existing cash balances and cash flows from operating activities.

Financing Activities

Cash used in financing activities during 2025 is primarily related to the $72.7 million payment on the CD Seller Note, $65.0 million of repurchases of common stock, $20.0 million net payments on the revolving credit facility, and $7.4 million of tax payments related to net share settlement of equity awards, partially offset by proceeds of $6.7 million from the exercise of options. Cash used in financing activities during 2024 is primarily related to $53.7 million of repurchases of common stock, the $50.0 million payment on the CD Seller Note, $26.0 million net payments on the revolving credit facility, and $6.6 million payment of taxes related to net share settlement of equity awards, partially offset by proceeds of $5.8 million from the exercise of options.

Adjusted Free Cash Flow

In addition to measuring cash flow generation based on the operating, investing, and financing classifications included in the Consolidated Statement of Cash Flows (including discontinued operations), Knowles also measures adjusted free cash flow and adjusted free cash flow as a percentage of revenues. Adjusted free cash flow is defined as non-GAAP net cash attributable to continuing operations less non-GAAP capital expenditures attributable to continuing operations. Non-GAAP net cash attributable to continuing operations is defined as net cash provided by operating activities less amounts utilized in or provided by discontinued operations. Non-GAAP capital expenditures attributable to continuing operations is defined as capital expenditures less amounts attributable to discontinued operations. Knowles believes these measures are helpful in measuring its cash generated from its continuing operations that is available to repay debt, fund acquisitions, and repurchase Knowles common stock. Adjusted free cash flow and adjusted free cash flow as a percentage of revenues are not presented in accordance with GAAP and may not be comparable to similarly titled measures used by other companies in our industry. As such, adjusted free cash flow and adjusted free cash flow as a percentage of revenues should not be considered in isolation from, or as an alternative to, any other liquidity measures determined in accordance with GAAP.

The following table reconciles our adjusted free cash flow to cash flow provided by operating activities:

In 2025, we generated adjusted free cash flow of $114.4 million compared to adjusted free cash flow in 2024 of $93.8 million. The increase in adjusted free cash flow in 2025 compared to 2024 was primarily due to higher adjusted earnings from continuing operations before interest and income taxes and also due to customer prepayments received in 2025. In addition, the Company's 2025 payments for taxes, interest, incentive compensation, and restructuring charges were all lower than 2024. The increase in adjusted free cash flow was partially offset by an increase in net working capital.

Contingent Obligations

From time to time, we are involved in various legal proceedings and claims arising in the ordinary course of its business. Legal contingencies are discussed in Note 14. Commitments and Contingent Liabilities to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data."

Contractual Obligations and Off-Balance Sheet Arrangements

A summary of our significant contractual obligations and commitments as of December 31, 2025 and the years when these obligations are expected to be due is as follows:

Risk Management

We are exposed to certain market risks which exist as part of our ongoing business operations, including changes in currency exchange rates, the dependence on key customers, price volatility for certain commodities, and changes in interest rates. We do not engage in speculative or leveraged transactions and do not hold or issue financial instruments for trading purposes.

Foreign Currency Exposure

We conduct business through our subsidiaries in many different countries and fluctuations in currency exchange rates could have a significant impact on the reported results of operations, which are presented in U.S. dollars. A significant portion of our products are manufactured in lower-cost locations and sold in various countries. Cross-border transactions, both with external parties and intercompany relationships, could result in increased foreign exchange exposures. A weakening of foreign currencies relative to the U.S. dollar would adversely affect the U.S. dollar value of the Company’s foreign currency-denominated sales, but would be beneficial to the cost of materials, products, and services purchased overseas. A strengthening of foreign currencies relative to the U.S. dollar would positively affect the U.S. dollar value of the Company’s foreign currency-denominated sales, but would have a negative effect on the cost of materials, products, and services purchased overseas. Our foreign currency exposure is primarily driven by our manufacturing activity in lower-cost locations and changes in the Chinese renminbi (yuan), the Malaysian ringgit, the Philippine peso, and the Mexican peso. Based on our current manufacturing activity and to a lesser extent sales, a sustained 10% weakening of the U.S. dollar for a period of one year would reduce our pre-tax earnings by approximately $14.8 million, excluding the impact of our hedging program. See Note 10. Hedging Transactions and Derivative Instruments to our Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data" for information on the Company's hedges of foreign currency exchange rate risk.

Dependence on Key Customers; Utilization of Distributors

The loss of any key customer or a reduction in the purchases of our products by such customers or our large distribution partners and our inability to replace those revenues may have a material adverse effect on our business and financial condition. In addition, if a key customer or distribution partner fails to meet payment obligations, our operating results and financial condition could be adversely affected. Further, our distributors could retain inventory levels that exceed their future anticipated sale, which could adversely impact our future sales to those distributors. Our only customers that accounted for 10% or more of total revenues in 2025 were WS Audiology A/S and TTI, Inc. WS Audiology, a hearing aid manufacturer, accounted for approximately 11%, 14%, and 16% of our revenues attributable to continuing operations for the years ended December 31, 2025, 2024, and 2023, respectively. TTI is a distributor of electromechanical components. For the year ended December 31, 2025, TTI, Inc. accounted for approximately 10% of our revenues attributable to continuing operations. In prior years, TTI accounted for less than 10% of our revenues attributable to continuing operations.

Commodity Pricing

We use a wide variety of raw materials, primarily metals and semi-processed or finished components, which are generally available from a number of sources. While the required raw materials are generally available, commodity pricing for various precious metals, such as palladium, gold, brass, stainless steel, and copper, fluctuates. As a result, our operating results are exposed to such fluctuations. Although some cost increases may be recovered through increased prices to customers if commodity prices trend upward, we also attempt to control such costs through fixed-price contracts with suppliers and various other programs through our global supply chain activities.

Interest Rates

Borrowings under our Revolving Credit Facility are at variable interest rates. A hypothetical 100 basis point increase in interest rates affecting our external variable rate borrowings as of December 31, 2025 would increase our annual interest expense by approximately $1.1 million.

Critical Accounting Estimates

Our Consolidated Financial Statements are based on the application of GAAP. GAAP requires the use of estimates, assumptions, judgments, and subjective interpretations of accounting principles that have an impact on the assets, liabilities, revenues, and expense amounts we report. These estimates can also affect supplemental information contained in our public disclosures, including information regarding contingencies, risk, and our financial condition. The significant accounting policies used in the preparation of our Consolidated Financial Statements are discussed in Note 1. Summary of Significant Accounting Policies to the Consolidated Financial Statements under Item 8, "Financial Statements and Supplementary Data." The accounting assumptions and estimates discussed in the section below are those that we consider most critical to an understanding of our financial statements because they inherently involve significant judgments and estimates. By their nature, these judgments and estimates are subject to an inherent degree of uncertainty. Although we believe our use of estimates and underlying accounting assumptions conforms to GAAP and is consistently applied, actual results could differ from our estimates. We review valuations based on estimates for reasonableness on a consistent basis.

Revenue Recognition: Revenue is recognized when control of the promised goods or services is transferred to the customer in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. The terms of a contract or historical business practice can give rise to variable consideration, including customer discounts, rebates, and returns. We estimate variable consideration using either the expected value or most likely amount method. We include amounts in the transaction price to the extent it is probable that a significant reversal of revenue will not occur in a subsequent reporting period. Our estimates of variable consideration are based on all reasonably available information (historical, current, and forecasted). Rebates are recognized over the contract period based on expected revenue levels. Estimation of variable consideration requires judgment and actual results may differ from estimated amounts, which could result in adjustments to revenue.

Inventories: Inventories are stated at the lower of cost or net realizable value, determined on the first-in, first-out ("FIFO") basis. The value of inventory may decline as a result of surplus inventory, price reductions, or technological obsolescence. It is our policy to carry reserves against the carrying value of inventory when items have no future demand (obsolete inventory) and additionally, where inventory items on hand have demand, yet have insufficient forecasted activity to consume the entire stock within a reasonable period. We recognize reserves against the carrying value of such at-risk inventory items after considering the nature of the risk and any mitigating factors. These estimates require judgment with respect to future demand and market conditions. Additional reserves could be required if actual demand and market conditions differ from our estimates.

Goodwill: The Company tests goodwill for impairment annually as of October 1, or more frequently if there are events or circumstances indicating it is more likely than not (that is, a likelihood of more than 50 percent) that the carrying value of individual reporting units may exceed their respective fair values. Recoverability of goodwill is measured at the reporting unit level. The Company’s four reporting units are High Performance Capacitors ("HPC"), Radio Frequency Microwave Filters ("RFMW"), Cornell Dubilier ("CD"), and MedTech & Specialty Audio ("MSA").

Management first reviews relevant qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If management determines it is more likely than not that the carrying value of a reporting unit might be impaired, a quantitative analysis is performed.

In the quantitative impairment assessment, fair value is estimated using a discounted cash flow model that includes market participant assumptions, forecasted future cash flows based on historical performance and future estimated results, and other assumptions which are considered reasonable in the discounted cash flow analysis. Significant assumptions used in the model include forecasted revenue and terminal growth rates, profit margins, income tax rates, capital expenditures, working capital requirements, and the Company's weighted average cost of capital. The fair value measurements for reporting units are based on significant unobservable inputs.

The Company performed a qualitative goodwill impairment test for the HPC, RFMW, and MSA reporting units and a quantitative impairment test for the CD reporting unit as of October 1, 2025. No goodwill impairment charges were recorded in continuing operations during the years ended December 31, 2025, 2024, or 2023.

Fair value measurements require considerable judgment and are sensitive to changes in underlying assumptions. As a result, there can be no assurance that estimates and assumptions made for purposes of the impairment assessment will prove to be an accurate prediction of the future. Potential circumstances that could have a negative effect on the fair value of our reporting units include, but are not limited to, lower than forecasted revenue and terminal growth rates, decreased profit margins, higher income taxes, increased capital expenditures, higher working capital requirements, and an increase in the weighted average cost of capital.

The Company cannot predict the occurrence of certain events or changes in circumstances that might adversely affect the carrying value of goodwill. Changes in interest and income tax rates could impact the weighted average cost of capital used in our estimates of fair value for our reporting units.

Other Intangible and Long-Lived Assets: Long-lived assets and intangible assets with determinable lives are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If an indicator of impairment exists for any grouping of assets, an estimate of undiscounted future cash flows is produced and compared to its carrying value. If an asset is determined to be impaired, the loss is measured by the excess of the carrying amount of the asset over its fair value as determined by an estimate of discounted future cash flows. The Company recorded an impairment charge of $3.6 million during the year ended December 31, 2025 to write down the carrying value of certain machinery and equipment sold to Syntiant Corp. No impairment of other intangible or long-lived assets was recorded for the years ended December 31, 2024 or 2023.

Income Taxes: We use judgment in determining our provision for income taxes, including our assessment of the need for a valuation allowance against our deferred tax assets and our determination of whether tax positions will be sustained on examination by taxing authorities based on the technical merits of the positions. To the extent that the final outcome of these matters is different than the amounts recorded, such differences will affect the provision for income taxes in the period in which such determination is made and could have a material impact on our financial condition and operating results.

A valuation allowance is recorded to reduce deferred tax assets to the net amount that is more likely than not to be realized. The need to establish valuation allowances for deferred tax assets is assessed at each reporting date. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more-likely-than-not standard, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. This assessment considers, among other matters, the nature, frequency, and severity of current and cumulative losses, forecasts of future profitability, the duration of statutory carryforward periods, our experience with operating loss and tax credit carryforwards not expiring unused, and tax planning strategies.

At December 31, 2025, consistent with the above process, we evaluated the need for a valuation allowance against our deferred tax assets for certain of our U.S. state tax attributes and determined that it was more likely than not that the deferred tax assets for these attributes would be realized. As a result, we recognized income tax benefit of $2.6 million related to the reversal of our deferred tax valuation allowance during the fourth quarter of 2025.

In 2024, consistent with the above process, we evaluated the need for a valuation allowance against our deferred tax assets and determined that it was more likely than not that the deferred tax asset established for a current year net operating loss in Luxembourg would not be realized. As a result, we recognized income tax expense of $18.2 million (primarily through discontinued operations) related to the accrual of our deferred tax valuation allowance during the fourth quarter of 2024.

In 2023, consistent with the above process, we evaluated the need for a valuation allowance against our deferred tax assets for U.S. foreign tax credits and certain of our U.S. state tax attributes and determined that it was more likely than not that the deferred tax assets for these attributes would be realized. As a result, we recognized an income tax benefit of $15.1 million related to the reversal of our deferred tax asset valuation allowance during the fourth quarter of 2023.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The information required by this section is incorporated by reference to the section “Risk Management,” included in Item 7 of this Annual Report on Form 10-K.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of Knowles Corporation

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Knowles Corporation and its subsidiaries (the “Company”) as of December 31, 2025 and 2024, and the related consolidated statements of earnings, comprehensive earnings, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2025, including the related notes and schedule of valuation and qualifying accounts for each of the three years in the period ended December 31, 2025 appearing under Item 8 (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting, appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Valuation of Inventories - Estimate of Certain Reserves

As described in Notes 1 and 4 to the consolidated financial statements, inventories are stated at the lower cost or net realizable value, determined on the first-in, first-out ("FIFO") basis. As of December 31, 2025, the Company’s inventories balance was $124.6 million net of reserves of $46.4 million, a portion of which related to certain reserves. The value of inventory may decline as a result of surplus inventory, price reductions, or technological obsolescence. It is the Company’s policy to carry reserves against the carrying value of inventory when items have no future demand (obsolete inventory) and additionally, where inventory items on hand have demand, yet have insufficient forecasted activity to consume the entire stock within a reasonable period. Management recognizes reserves against the carrying value of such at-risk inventory items after considering the nature of the risk and any mitigating factors. As disclosed by management, these estimates require judgment with respect to future demand and market conditions.

The principal considerations for our determination that performing procedures relating to the valuation of inventories - estimate of certain reserves is a critical audit matter are (i) the significant judgment by management when developing the estimate of certain reserves and (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumption related to future demand.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s estimate of certain reserves. These procedures also included, among others (i) testing management’s process for developing the estimate of certain reserves; (ii) evaluating the appropriateness of management’s estimation methodology; (iii) testing the completeness and accuracy of the underlying data used in developing the estimate of certain reserves; (iv) testing, on a sample basis, the accuracy of the inventory-related reserve charges by recalculating certain reserves; and (v) evaluating the reasonableness of the significant assumption used by management related to future demand. Evaluating management’s assumption related to future demand involved considering (i) the current and past results of the Company; (ii) a comparison of the prior year estimates to actual results in the current year; and (iii) whether the assumption was consistent with evidence obtained in other areas of the audit.

/s/ PricewaterhouseCoopers LLP

Chicago, Illinois

February 9, 2026

We have served as the Company’s auditor since 2013.

See accompanying Notes to Consolidated Financial Statements

See accompanying Notes to Consolidated Financial Statements

See accompanying Notes to Consolidated Financial Statements

See accompanying Notes to Consolidated Financial Statements

See accompanying Notes to Consolidated Financial Statements

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Summary of Significant Accounting Policies

Background - Knowles Corporation (NYSE:KN) is a leading manufacturer of specialty electronic components. The Company designs parts that perform unique and critical functions for innovative technologies. Through extreme reliability, custom engineering, and scalable manufacturing, the Company enables businesses to succeed in the most demanding applications across medtech, defense, industrial, and electrification/energy markets. Knowles high performance capacitors, radio frequency ("RF") filters, advanced medtech microphones, and balanced armature speakers enhance the performance of customer products. The Company's focus on the customer, combined with unique technology, proprietary manufacturing techniques, and global operational expertise, enable the Company to deliver innovative solutions across multiple applications. References to "Knowles," "the Company," "we," "our," and "us" refer to Knowles Corporation and its consolidated subsidiaries.

On December 27, 2024, the Company completed the sale of the Consumer MEMS Microphones ("CMM") business to Syntiant Corp. See Note 2. Discontinued Operations for additional information related to this transaction. The Company has classified the results of CMM as discontinued operations for all periods presented.

On November 1, 2023, the Company completed the acquisition of Cornell Dubilier, a manufacturer of film, electrolytic, and mica capacitors used in medtech, military, and industrial electrification applications. See Note 3. Acquisition for additional information related to this transaction.

Financial Statement Presentation - The Consolidated Financial Statements included in this Annual Report on Form 10-K are presented in conformity with U.S. generally accepted accounting principles ("U.S. GAAP").

Use of Estimates - The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the accompanying financial statements and disclosures. These estimates may be adjusted due to changes in future economic, industry, or customer financial conditions, as well as changes in technology or demand. Estimates are used in accounting for, among other items, inventory reserves, restructuring reserves, warranty reserves, pension and post-retirement plans, stock-based compensation, useful lives for depreciation and amortization of long-lived assets, future cash flows associated with impairment testing for goodwill, indefinite-lived intangible assets and other long-lived assets, deferred tax assets, uncertain income tax positions, changes in tax laws, and contingencies. Management uses historical experience and all available information to make these estimates. Actual results may ultimately differ from estimates, although management does not believe such differences would materially affect the financial statements in any individual year. Estimates and assumptions are periodically reviewed and the effects of revisions are reflected in the Consolidated Financial Statements in the period that they are determined.

Corrections of Errors - During the year ended December 31, 2025, the Company identified an error in its historical financial results related to stock-based compensation expense for those individuals that are nearing or have reached retirement eligibility as defined by the equity compensation plan. This error resulted in the understatement of stock-based compensation expense for the years ended December 31, 2024, 2023, and 2022. During the year ended December 31, 2025, the Company corrected its stock-based compensation expense, which resulted in increases to Selling and administrative expenses of $0.9 million, Research and development expenses of $0.1 million, and Cost of goods sold of $0.1 million. This correction decreased Earnings before income taxes and discontinued operations and Earnings from continuing operations by $1.1 million and $1.0 million, respectively, for the year ended December 31, 2025.

In addition, during the year ended December 31, 2025, the Company identified an error in its historical financial results related to working capital adjustments and costs associated with the disposal of CMM in the fourth quarter of 2024. This error resulted in the overstatement of the gain on disposal of business reflected in Loss from discontinued operations, net during the year ended December 31, 2024. The Company corrected this error during the year ended December 31, 2025, resulting in an increase to Loss from discontinued operations, net of $1.3 million.

The Company evaluated the impact of these errors in accordance with Accounting Standards Codification ("ASC") 250, Accounting Changes and Error Corrections, and determined that they were not material to the consolidated financial statements for the current year or to any previously reported annual or interim periods.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Transactions with Syntiant - As partial consideration for the sale of CMM on December 27, 2024, the Company received Series D-2 preferred stock of Syntiant Corp. See Note 2. Discontinued Operations for additional information related to this transaction. The Company accounts for this investment using the cost method, measured at its historical cost, which was the fair value of the consideration received from Syntiant for the sale of CMM, plus any non-cash dividends earned. The balance of this investment was $83.4 million and $77.2 million as of December 31, 2025 and 2024, respectively, and is classified as "Investment in affiliate" on the Consolidated Balance Sheet. During the year ended December 31, 2025, the Company recorded a non-cash dividend on this investment in the form of additional Syntiant Series D-2 shares with a value of $6.2 million, which is reflected as "Dividend income" on the Consolidated Statement of Earnings.

In connection with the sale of CMM, the Company provided financing of $6.4 million to Syntiant, which was utilized to fund Syntiant's requirement to have $40.0 million of cash on its balance sheet at closing. This note is junior to Syntiant's debt financing and matures on March 28, 2029 and bears interest at the prime rate until six months after the closing date of the sale, at which time the interest rate increased to 13.0%. The balance of this note was $5.9 million and $6.4 million as of December 31, 2025 and 2024, respectively, and is classified within "Other assets and deferred charges" on the Consolidated Balance Sheet.

The Company shares in certain separation costs with Syntiant related to the sale of CMM pursuant to a credit of up to $13.5 million. Under the terms of the separation cost credit, the Company is required to reimburse Syntiant 100% for the first $7.0 million of separation costs incurred and 50% for those costs in excess of $7.0 million, up to the maximum established separation cost credit of $13.5 million. The balance of the separation cost credit was $4.8 million and $13.5 million at December 31, 2025 and 2024, respectively and is classified within "Other accrued expenses" on the Consolidated Balance Sheet. As the balance of the separation cost credit is now below the $7.0 million contractual threshold, future costs will be shared equally by the Company and Syntiant.

The Company leases portions of its facilities to Syntiant, for which lease payments to date of $2.8 million have been applied to the separation credit. The Company also subleases portions of its manufacturing facilities to Syntiant at cost. The portion of operating lease right-of-use assets subleased by Syntiant totaled $5.2 million and $0.3 million at December 31, 2025 and 2024, respectively.

The Company recognized revenue totaling $17.3 million during the year ended December 31, 2025 related to transactions with Syntiant. These revenues are reflected in the results of the MedTech & Specialty Audio segment. Receivables, net include $4.2 million and $1.8 million due from Syntiant at December 31, 2025 and 2024, respectively, related to these sales transactions and amounts related to the sale of CMM.

During the year ended December 31, 2025 the Company engaged with Syntiant to sell certain machinery and equipment associated with the MedTech & Specialty Audio segment for a nominal selling price. The Company recorded an impairment charge of $3.6 million for the year ended December 31, 2025 to write down the carrying value of these assets to fair value based on the selling price.

Cash and Cash Equivalents - Cash and cash equivalents include cash on hand, demand deposits, and temporary cash investments with original maturities less than three months.

Allowance for Doubtful Accounts – The Company maintains allowances for estimated losses as a result of customers' inability to make required payments. Management evaluates the aging of the accounts receivable balances, the financial condition of its customers, historical trends, and relevant forecasts to estimate the amount of accounts receivable that may not be collected in the future and records the appropriate provision.

Inventories – Inventories are stated at the lower of cost or net realizable value, determined on the first-in, first-out ("FIFO") basis. The value of inventory may decline as a result of surplus inventory, price reductions, or technological obsolescence. It is the Company’s policy to carry reserves against the carrying value of inventory when items have no future demand (obsolete inventory) and additionally, where inventory items on hand have demand, yet have insufficient forecasted activity to consume the entire stock within a reasonable period. The Company recognizes reserves against the carrying value of such at-risk inventory items after considering the nature of the risk and any mitigating factors.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Property, Plant, and Equipment - Property, plant, and equipment includes the historic cost of land, buildings, equipment, and significant improvements to existing plant and equipment or, in the case of acquisitions, a fair market value appraisal of such assets completed at the time of acquisition. Property, plant, and equipment also includes the cost of purchased software. Expenditures for maintenance, repairs, and minor renewals are expensed as incurred. When property or equipment is sold or otherwise disposed of, the related cost and accumulated depreciation is removed from the respective accounts, and the gain or loss realized on disposition is reflected in earnings. The Company historically depreciates its assets on a straight-line basis over their estimated useful lives as follows: buildings and improvements 5 to 31.5 years; machinery and equipment 1.5 to 7 years; furniture and fixtures 2 to 5 years; vehicles 3 to 5 years; and software 3 to 5 years.

Leases - The Company determines whether an arrangement is a lease at contract inception. Lease liabilities and right-of-use assets are recognized on the lease commencement date based on the net present value of fixed lease payments over the lease term. The Company includes options to extend or terminate a lease within the lease term when it is reasonably certain the option will be exercised. Leases with an initial term of 12 months or less are not recorded on the Consolidated Balance Sheets. Lease liabilities represent an obligation to make lease payments arising from a lease while right-of-use assets represent a right to use an underlying asset during the lease term. Right-of-use assets include prepaid fixed lease payments and exclude lease incentives. As the Company's leases do not have a readily determinable implicit rate, the Company uses its incremental borrowing rate to determine the present value of fixed lease payments based on information available at the lease commencement date.

Fixed lease expense for operating leases and right-of-use asset amortization for finance leases are generally recognized on a straight-line basis over the lease term. Variable lease payments, such as payments based on an index rate or usage, are expensed as incurred and excluded from lease liabilities and right-of-use assets. The Company combines lease components and nonlease components such as maintenance into a single lease component, which results in the capitalization of all fixed payments within lease liabilities and right-of-use assets.

Derivative Instruments - The Company uses derivative financial instruments to hedge its exposure to foreign currency exchange rate risk. The Company does not enter into derivative financial instruments for speculative purposes and does not have a material portfolio of derivative financial instruments. Derivative financial instruments used for hedging purposes must be designated and effective as a hedge of the identified risk exposure at inception of the contract. The Company recognizes all derivatives as either assets or liabilities on the Consolidated Balance Sheets and measures those instruments at fair value. For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivatives is recorded as a component of other comprehensive earnings and subsequently recognized in net earnings when the hedged items impact earnings.

Goodwill and Indefinite-Lived Intangible Assets - Goodwill represents the excess of purchase consideration over the fair value of the net assets of businesses acquired. Goodwill and certain other intangible assets deemed to have indefinite lives are not amortized. Instead, goodwill and indefinite-lived intangible assets are tested for impairment at least annually, or more frequently if there are events or circumstances indicating the carrying value of individual reporting units or assets may exceed their respective fair values on a more likely than not basis (that is, a likelihood of more than 50 percent). The Company performs its annual impairment assessment in the fourth quarter of each year on October 1.

Recoverability of goodwill is measured at the reporting unit level. The Company has four reporting units - High Performance Capacitors ("HPC"), Radio Frequency Microwave Filters ("RFMW"), Cornell Dubilier ("CD"), and MedTech & Specialty Audio ("MSA"). The goodwill balances associated with these reporting units at December 31, 2025 were as follows: $43.6 million for HPC, $19.6 million for RFMW, $69.4 million for CD, and $137.7 million for MSA.

Management first reviews relevant qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If management determines it is more likely than not that the carrying value of a reporting unit might be impaired, a quantitative analysis is performed.

The quantitative impairment assessment compares the fair value of each reporting unit to its carrying value. Impairment is measured as the amount by which the carrying value of a reporting unit exceeds its fair value. Fair value is estimated using a discounted cash flow model that includes the Company’s market participant assumptions, forecasted future cash flows based on historical performance and future estimated results, and other assumptions which are considered reasonable and inherent in the discounted cash flow analysis. Significant assumptions used in the model included forecasted revenue and terminal growth rates, profit margins, income tax rates, capital expenditures, working capital requirements, and the Company's weighted average cost of capital. These assumptions require significant judgment and actual results may differ from estimated amounts.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company performed a qualitative goodwill impairment test for the HPC, RFMW, and MSA reporting units and a quantitative impairment test for the CD reporting unit as of October 1, 2025 . No goodwill impairment charges were recorded in continuing operations for any reporting unit for the years ended December 31, 2025, 2024, or 2023.

Potential circumstances that could have a negative effect on the fair value of our reporting units include, but are not limited to, lower than forecasted revenue and terminal growth rates, decreased profit margins, higher income taxes, increased capital expenditures, higher working capital requirements, and an increase in the weighted average cost of capital. A reduction in the estimated fair value of the reporting units could trigger an impairment in the future. The Company cannot predict the occurrence of certain events or changes in circumstances that might adversely affect the carrying value of goodwill and intangible assets.

In testing its indefinite-lived trademarks for impairment, the Company uses a relief-from-royalty method to calculate and compare the fair value of the intangible asset to its carrying value. This method estimates the fair value of trademarks by calculating the present value of royalty income that could hypothetically be earned by licensing the trademark to a third party. Any excess of carrying value over the estimated fair value is recognized as an impairment loss. No impairment of indefinite-lived trademarks was indicated for the years ended December 31, 2025, 2024, or 2023.

See Note 6. Goodwill and Other Intangible Assets for additional information on goodwill and indefinite-lived intangible assets.

Other Intangible and Long-Lived Assets - Other intangible assets with determinable lives consist primarily of customer relationships, developed technology, and trademarks, which are amortized over estimated useful lives typically ranging from 4 to 15 years.

Long-lived assets and intangible assets with determinable lives are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If an indicator of impairment exists for any grouping of assets, an estimate of undiscounted future cash flows is produced and compared to its carrying value. If an asset is determined to be impaired, the loss is measured by the excess of the carrying amount of the asset over its fair value as determined by an estimate of discounted future cash flows.

Investment in Affiliate - This investment reflects Series D-2 preferred stock of Syntiant Corp., a non-marketable equity security. This investment is accounted for using the measurement alternative at cost. The carrying amount is remeasured to its fair value when observable price changes occur (observable prices in orderly transactions for an identical or similar investment of the same issuer), or when it is impaired. Any adjustments to the carrying amount are recorded in earnings.

Other Assets and Deferred Charges - Investments in mutual funds of $8.8 million and $7.4 million are included in "Other assets and deferred charges" as of December 31, 2025 and 2024, respectively. These investments are carried at fair value based on quoted prices for identical assets in active markets, resulting in classification within Level 1 of the fair value hierarchy. Gains and losses related to the investments are recorded within the Consolidated Statements of Earnings as a component of "Other (income) expense, net." Other assets and deferred charges also include non-current deferred tax assets.

Foreign Currency - Assets and liabilities of non-U.S. subsidiaries, where the functional currency is not the U.S. dollar, are translated into U.S. dollars at end-of-period exchange rates. Revenue and expense items are translated using weighted-average exchange rates. Foreign currency translation gains and losses are included as a component of "Accumulated other comprehensive loss." Assets and liabilities of an entity that are denominated in currencies other than an entity’s functional currency are re-measured into the functional currency using end-of-period exchange rates or historical rates where applicable to certain balances. Gains and losses related to these re-measurements are recorded within the Consolidated Statements of Earnings as a component of "Other (income) expense, net."

Revenue Recognition - Revenue is recognized when control of the promised goods or services is transferred to the customer in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. The majority of the Company’s revenue is generated through the manufacture and sale of specialized products and components. For product and component sales, each good sold to a customer typically represents a distinct performance obligation. The Company’s performance obligation to provide goods to a customer is typically satisfied at a point in time upon completion of the shipping process as indicated by the terms of the contract, at which point control is transferred to the customer and revenue is recognized. The Company has no significant arrangements with multiple performance obligations. Remaining performance obligations consist of the aggregate amount of the total transaction price that is unsatisfied or partially satisfied.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Contract liabilities (deferred revenue) primarily relate to arrangements where cash has been collected but transfer of control of all performance obligations to the customer has either partially occurred or not occurred at the balance sheet date. Deferred revenue is classified on the Consolidated Balance Sheet as either a current liability ("Other accrued expenses") or non-current liability ("Other liabilities") based on the timing of when the Company expects to complete the performance obligation.

The terms of a contract or historical business practice can give rise to variable consideration, including customer discounts, rebates, and returns. The Company estimates variable consideration using either the expected value or most likely amount method. We include amounts in the transaction price to the extent it is probable that a significant reversal of revenue will not occur in a subsequent reporting period. Our estimates of variable consideration are based on all reasonably available information (historical, current, and forecasted). Rebates are recognized over the contract period based on expected revenue levels. Sales discounts and rebates totaled $4.2 million, $4.5 million, and $3.1 million for the years ended December 31, 2025, 2024, and 2023, respectively. Returns and allowances totaled $5.5 million, $4.6 million, and $3.1 million for the years ended December 31, 2025, 2024, and 2023, respectively.

The Company accounts for shipping and handling activities that occur after control of the related good transfers to the customer as fulfillment activities rather than evaluating such activities as performance obligations. As a result, all shipping and handling costs related to contracts with customers are recognized in "Cost of goods sold" on the Consolidated Statements of Earnings. Additionally, the Company applies the practical expedient allowing incremental costs of obtaining a contract to be expensed as incurred if the amortization period of the resulting asset would have been less than one year. These costs primarily consist of sales commissions; the Company has no such significant costs exceeding the one-year limit for applying the practical expedient.

Receivables, net from contracts with customers were $91.7 million and $89.5 million as of December 31, 2025 and 2024, respectively. See Note 17. Segment Information for disclosures regarding the disaggregation of revenues.

Stock-Based Compensation – The principal awards issued under the stock-based compensation plans include stock options, restricted stock units ("RSUs"), and performance share units ("PSUs"). The cost for such awards is measured at the grant date based on the fair value of the award. The value of the portion of the award that is expected to ultimately vest is recognized as expense on a straight-line basis generally over the explicit service period of three years (except for retirement-eligible employees) and is included in "Cost of goods sold," "Research and development expenses," and "Selling and administrative expenses" in the Consolidated Statements of Earnings, depending on the functional area of the underlying employees. Expense for awards granted to retirement-eligible employees is recorded over the period from the date of grant through the date the employee first becomes eligible to retire and is no longer required to provide service. At the time of grant, the Company estimates forfeitures, based on historical experience, in order to estimate the portion of the award that will ultimately vest.

The Company uses the Black-Scholes valuation model to estimate the fair value of stock options granted to employees. The fair value of each RSU granted is equal to the share price at the date of the grant. The fair value of each PSU with a market condition is determined using a Monte Carlo simulation. The related expense for PSUs with market conditions is recognized regardless of the expected attainment as the grant date fair value considers the range of possible stock price and total shareholder return outcomes. The fair value of each PSU with a performance condition is equal to the share price at the date of the grant. The related expense for PSUs with performance conditions is recognized based on the expected attainment of performance targets. Changes in estimates for performance conditions that impact the number of shares expected to vest are recognized prospectively through cumulative adjustments to expense. See Note 13. Equity Incentive Program for additional information related to the Company’s stock-based compensation.

Income Taxes - The Company records a provision for income taxes for the anticipated tax consequences of the reported results of operations using the asset and liability method. Under this method, the Company recognizes deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, as well as for operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using the tax rates that are expected to apply to taxable income for the years in which those tax assets and liabilities are expected to be realized or settled. The Company offsets and presents deferred tax liabilities and assets, as well as any related valuation allowance, as a single non-current amount on the Consolidated Balance Sheets on a jurisdictional basis. The Company's policy is to release income tax effects from accumulated other comprehensive loss in the period the underlying item expires.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company establishes valuation allowances for its deferred tax assets if, based on all available positive and negative evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. In making such assessments, significant weight is given to evidence that can be objectively verified. The assessment of the need for a valuation allowance requires considerable judgment on the part of management with respect to the benefits that could be realized from future taxable income, as well as other positive and negative factors. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax-planning strategies in making this assessment.

The Company recognizes tax benefits from uncertain tax positions only if it believes that it is more likely than not that the tax position will be sustained on examination by the taxing authorities based on the technical merits of the position. Adjustments are made to these reserves when facts and circumstances change, such as the closing of a tax audit or the refinement of an estimate. To the extent that the final tax outcome of these matters is different than the amounts recorded, such differences will affect the provision for income taxes in the period in which such determination is made and could have a material impact on the Company's financial condition and operating results. The provision for income taxes includes the effects of any reserves that are believed to be appropriate, as well as the related net interest and penalties.

Research and Development Costs – Research and development costs, including qualifying engineering costs, are expensed when incurred.

Share Repurchases - On February 24, 2020, the Company announced that its Board of Directors had authorized a share repurchase program of up to $100.0 million of the Company's common stock. On April 28, 2022, it announced that our Board of Directors had increased the authorization by up to $150.0 million in additional aggregate value. On February 13, 2025, the Company announced that its Board of Directors had increased its share repurchase authorization by an additional $150.0 million in additional aggregate value. The timing and amount of any shares repurchased will be determined by the Company based on its evaluation of market conditions and other factors, and will be made in accordance with applicable securities laws in either the open market or in privately negotiated transactions. The Company is not obligated to purchase any shares under the program, and the program may be suspended or discontinued at any time. The actual timing, number, and share price of shares repurchased will depend on a number of factors, including the market price of the Company’s common stock, general market and economic conditions, and applicable legal requirements. Any shares repurchased will be held as treasury stock. During the years ended December 31, 2025, 2024, and 2023, the Company repurchased 3,571,865, 2,987,697, and 2,851,604 shares of common stock, respectively, for a total of $65.0 million, $53.7 million, and $47.5 million, respectively. At December 31, 2025, the Company had $129.0 million remaining that may yet be repurchased under the share repurchase program.

Non-cash Investing Activities - Purchases of property, plant, and equipment included in accounts payable were $2.1 million at December 31, 2025, $1.7 million at December 31, 2024, and $1.1 million at December 31, 2023. These amounts reflect both continuing and discontinued operations. These non-cash amounts are not reflected as Capital expenditures within investing activities of the Consolidated Statements of Cash Flows for the respective periods.

On December 27, 2024, the Company completed the sale of the CMM to Syntiant. The total consideration for this transaction was approximately $141.9 million, consisting of $63.6 million in cash ($58.0 million net of cash sold), Syntiant Series D-2 preferred stock with a fair value of $77.2 million, and $1.1 million for estimated purchase price adjustments. The purchase price adjustment is still being finalized and is subject to change. These non-cash amounts are not reflected in "Proceeds from the sale of business" within Investing Activities on the Consolidated Statement of Cash Flows for the year ended December 31, 2024. See Note 2. Discontinued Operations.

The Company completed an asset acquisition in 2023 for a total purchase price of approximately $2.0 million, including contingent consideration with an estimated fair value at acquisition of $1.7 million. This non-cash amount is not reflected in “Acquisition of asset” within Investing Activities on the Consolidated Statement of Cash Flows for the year ended December 31, 2023.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Recently Issued Accounting Standards

In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-09 to enhance the transparency of income tax disclosures. This guidance requires that public business entities disclose, on an annual basis, specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. A public business entity is required to provide an explanation, if not otherwise evident, of the individual reconciling items disclosed, such as the nature, effect, and underlying causes and the judgment used in categorizing the reconciling items. This guidance also requires that all entities disclose, on an annual basis, the amount of income taxes paid (net of refunds received) disaggregated by federal, state, and foreign taxes and the amount of income taxes paid (net of refunds received) disaggregated by those individual jurisdictions equal to or greater than five percent of the total. The Company prospectively adopted this standard beginning with its annual reporting for the year ended December 31, 2025. See Note 12. Income Taxes.

In November 2024, the FASB issued ASU 2024-03 to provide additional information about specific expense categories in the notes to the financial statements at interim and annual reporting periods. This guidance requires that a public business entity disclose amounts of purchases of inventory, employee compensation, depreciation, and intangible asset amortization included in each relevant expense caption presented on the face of the income statement and a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. This standard also requires an entity disclose the total amount of selling expenses and, in annual reporting periods, an entity's definition of selling expenses. This standard is effective for the Company for its annual reporting for the year ended December 31, 2027 and for interim reporting for the three months ended March 31, 2028. Early adoption is permitted. This standard may be applied either prospectively to the financial statements issued for reporting periods after the effective date or retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of this standard on its financial statements.

In November 2025, the FASB issued ASU 2025-09 to clarify certain aspects of the guidance on hedge accounting, namely (1) expanding the hedged risks permitted to be aggregated in a group of individual forecasted transactions, thereby enabling entities to apply hedge accounting to potentially broader portfolios of forecasted transactions, (2) including an alternative model for the application of hedge accounting to cash flow hedges of interest payments on certain debt instruments, (3) expanding hedge accounting for forecasted purchases and sales of nonfinancial assets to allow a company to hedge a component of a purchase or sale price or a subcomponent (in addition to hedging overall purchase or sale price), provided certain criteria are met, (4) accommodating differences in the loan and swap markets that developed after the cessation of the London Interbank Offered Rate ("LIBOR"), and (5) eliminating the recognition and presentation mismatch related to a dual hedge strategy (that is, a hedge for which a foreign-currency denominated debt instrument is both designated as the hedging instrument in a net investment hedge and designated as the hedged item in a fair value hedge of interest rate risk). This standard requires adoption on a prospective basis and is effective for the Company for both interim and annual reporting for the year ended December 31, 2027. The Company does not expect the adoption of this standard to have a significant impact upon the financial statements.

In December 2025, the FASB issued ASU 2025-10 to provide specific authoritative guidance about the recognition, measurement, and presentation of a grant received by a business entity from a government. The amendments in this guidance require that a government grant received by a business entity should not be recognized until (1) it is probable that a business entity will comply with the conditions attached to the grant and the grant will be received and (2) a business entity meets the recognition guidance for a grant related to an asset or a grant related to income. Adoption of this standard is required using either a modified prospective, modified retrospective, or a retrospective approach. This standard is effective for the Company for both interim and annual reporting for the year ended December 31, 2029. The Company does not expect the adoption of this standard to have a significant impact upon the financial statements.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

2. Discontinued Operations

On December 27, 2024, the Company completed the sale of CMM to Syntiant. The total consideration for this transaction was approximately $141.9 million, consisting of $63.6 million in cash ($58.0 million net of cash sold), Syntiant Series D-2 preferred stock with a fair value of $77.2 million, and $1.1 million for estimated purchase price adjustments. The purchase price adjustment is still being finalized and is subject to change. The Company incurred costs to sell related to this transaction of $5.8 million and reclassified $3.4 million of gains from Accumulated other comprehensive loss to earnings upon the sale of CMM.

The Company recorded net adjustments of $2.8 million to the loss on disposal of CMM during the year ended December 31, 2025. This amount includes losses of $1.8 million ($1.3 million, net of tax) related to working capital adjustments and costs associated with the transaction that occurred in the fourth quarter of 2024, but were not recorded at that time. See also Note 1. Summary of Significant Accounting Policies.

The Company shares in certain separation costs pursuant to a credit for up to $13.5 million that Syntiant may apply to specified separation costs post-closing.

The disposition of CMM meets the criteria described in ASC 205-20, Presentation of Financial Statements – Discontinued Operations. In accordance with this guidance, the Company has classified the results of operations of CMM as discontinued operations for all periods presented as this disposal represents a strategic shift that has a major effect on the Company’s results of operations.

Results of the Company’s discontinued operations were as follows:

The Company recorded goodwill impairment charges of $262.5 million during the year ended December 31, 2024 to write down the carrying value of CMM to its fair value prior to its disposition.

During the year ended December 31, 2024, the Company sold certain technology related to CMM to a third party for total proceeds of $7.2 million. After transaction costs of $1.8 million, the Company recognized a net gain on the sale of this asset of $5.4 million during the year ended December 31, 2024. This gain is reflected as “Gain on sale of technology, net” in the results of discontinued operations above.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

During the year ended December 31, 2023, the Company entered into an agreement to sell certain of its machinery and equipment related to CMM to a third party for total proceeds of $11.4 million, which were received in their entirety in 2023. In addition, the Company received $1.1 million in 2023, which was initially reserved for a third-party payment. The Company transferred control of a portion of these assets with a fair value of approximately $11.2 million to the buyer during the year ended December 31, 2023, resulting in a gain on sale of approximately $11.0 million. The remaining assets were transferred to the buyer in 2024 for an immaterial gain. During the year ended December 31, 2024, the Company recorded an additional gain on sale of these assets of approximately $1.1 million as a result of changing its estimate on the amount owed to the third party.

These gains on sale are reflected within the results from discontinued operations above as follows:

As the Consolidated Statement of Cash Flows includes the results of CMM in its net cash provided by (used in) operating, investing, and financing activities, the Company has provided the following information related to CMM in accordance with ASC 205-20:

(1) CMM was classified as held-for-sale as of September 30, 2024. At that time, the Company ceased to record depreciation and amortization for its long-lived assets in connection with ASC 360, Property, Plant, and Equipment.

Purchases of property, plant, and equipment related to discontinued operations included in accounts payable were $0.6 million and $0.2 million at December 31, 2024 and 2023, respectively. These non-cash amounts are not reflected as "Capital expenditures" above. There were no purchases of property, plant, and equipment related to discontinued operations included in accounts payable during the year ended December 31, 2025.

3. Acquisition

On November 1, 2023, the Company acquired (i) all the issued and outstanding shares of Kaplan Electronics, Inc. and (ii) certain assets of Cornell Dubilier Electronics, Inc. and CD Aero, LLC (collectively, "Cornell Dubilier" or "CD") for aggregate consideration of $259.8 million, which equated to a total fair value of consideration transferred of $246.8 million. This purchase price of $246.8 million consisted of $136.9 million in cash payments and an interest-free seller note (the “Seller Note”) with a fair value of $109.9 million (see Note 11. Borrowings).

CD is a manufacturer of film, electrolytic, and mica capacitors used in medtech, defense, and industrial electrification applications. The transaction was accounted for as a business combination under ASC 805. The Company has completed the purchase price allocation for the acquisition of CD.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The table below represents the allocation of the purchase price to net assets acquired as of November 1, 2023:

The fair value for customer relationships was determined using the multi-period excess earnings method under the income approach. This method reflects the present value of expected future cash flows less charges representing the contribution of other assets to those cash flows. The fair value for developed technology and trademarks was determined using the relief-from-royalty method under the income approach. The fair value measurements of the intangible assets are based on significant unobservable inputs, and thus represent Level 3 inputs. Significant assumptions used in assessing the fair values of customer relationships, developed technology, and trademarks include forecasted revenue and terminal growth rates, profit margins, customer attrition rates, royalty rates, and discount rates. The weighted-average discount rates applied to expected future cash flows to reflect the risks related to intangible assets identified in connection with the CD acquisition were as follows:

The customer relationships, developed technology, and trademarks identified will be amortized on a straight-line basis over their estimated useful lives. The weighted-average useful lives assigned to these assets were as follows:

The excess of the total purchase price over the total fair value of the identifiable assets and liabilities was recorded as goodwill. The goodwill recognized is primarily attributable to synergies expected to be realized on this transaction and the assembled workforce. Of the total goodwill of $69.3 million recognized for this transaction, approximately $27.5 million is tax deductible. All goodwill related to CD has been allocated to the PD segment, which is the segment expected to benefit from the acquisition.

The Company believes the fair values assigned to intangible assets are based on reasonable assumptions and estimates that approximate the amounts a market participant would pay for these intangible assets as of the acquisition date. Actual results could differ materially from these estimates.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Impact of CD Acquisition and Pro-Forma Summary

Included in the Consolidated Statements of Earnings are CD’s revenues and loss before income taxes of $20.2 million and $1.1 million, respectively, from the date of acquisition through December 31, 2023. The $1.1 million loss before income taxes includes employee retention and intangible asset amortization expense of $1.0 million and $1.6 million, respectively.

In accordance with ASC 805, the following unaudited pro-forma summary presents consolidated financial information as if CD had been acquired as of the beginning of the year prior to the acquisition date. The unaudited pro-forma financial information is based on historical results of operations and financial positions of the Company and CD. The pro-forma earnings are adjusted to reflect the comparable impact of depreciation and amortization expense resulting from the fair value measurement of tangible and intangible assets, nonrecurring deal-related costs, employee retention, inventory step-up charges, and interest expense on borrowings to fund the acquisition.

The unaudited pro-forma financial information does not necessarily represent the results that would have occurred had the transaction occurred as of the beginning of the year prior to the acquisition date. In addition, the unaudited pro-forma information should not be deemed to be indicative of future results.

4. Inventories

The following table details the major components of inventories:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

5. Property, Plant, and Equipment, net

The following table details the major components of property, plant, and equipment, net:

Depreciation expense totaled $20.1 million, $20.6 million, and $18.7 million for the years ended December 31, 2025, 2024, and 2023, respectively.

During the year ended December 31, 2025, the Company recorded an impairment charge of $3.6 million to write down the carrying value of certain machinery and equipment to its selling price. See also "Transactions with Syntiant" in Note 1. Summary of Significant Accounting Policies.

6. Goodwill and Other Intangible Assets

The changes in the carrying value of goodwill by reportable segment are as follows:

The Company recorded measurement period adjustments totaling $0.3 million to goodwill during the year ended December 31, 2024 related to the 2023 acquisition of CD.

The gross carrying value and accumulated amortization for each major class of intangible assets are as follows:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As of December 31, 2025, the weighted average remaining useful lives for the amortizable intangible assets are: trademarks at 12.0 years, customer relationships at 7.4 years, developed technology at 6.9 years, and other at 5.3 years. The weighted average remaining useful life for all amortizable intangible assets was 7.8 years as of December 31, 2025.

Total amortization expense for the years ended December 31, 2025, 2024, and 2023 was $16.2 million, $17.0 million, and $7.5 million, respectively. Amortization expense for the next five years and thereafter, based on current definite-lived intangible balances, is estimated to be as follows:

7. Leases

The Company has leases for manufacturing, sales, support, and engineering facilities, certain manufacturing and office equipment, and vehicles. The majority of the leases have remaining terms of 1 to 9 years, some of which include options to extend the leases for up to 6 years, and some of which include options to terminate the leases within 1 year. The lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company subleases certain facilities to third parties.

The disclosures below include the results of both continuing and discontinued operations. As stated in Note 1. Summary of Significant Accounting Policies, subsequent to the sale of CMM on December 27, 2024, the Company leases portions of its facilities to Syntiant. The portion of right-of-use operating lease assets subleased by Syntiant totaled $5.2 million and $0.3 million at December 31, 2025 and 2024, respectively.

The following table details the components of lease cost:

(1) Includes short-term and variable lease costs, which were immaterial.

The components of lease cost other than interest on lease liabilities are presented within "Cost of goods sold," "Research and development expenses," and "Selling and administrative expenses" on the Consolidated Statements of Earnings based on the use of the underlying assets. Interest on lease liabilities is presented within "Interest expense, net" on the Consolidated Statements of Earnings.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table presents supplemental balance sheet information related to finance leases:

The following table presents supplemental cash flow information related to leases:

(2) Does not include operating lease liabilities of $3.4 million and finance lease liabilities of $0.1 million obtained in the acquisition of CD during the year ended December 31, 2023. See Note 3. Acquisition for more information.

The following table details weighted-average remaining lease terms and discount rates:

The following table details maturities of lease liabilities as of December 31, 2025:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

8. Other Accrued Expenses and Other Liabilities

The following table details the major components of other accrued expenses:

(1) In connection with the sale of CMM on December 27, 2024, the Company shares in certain separation costs with the buyer pursuant to a credit of up to $13.5 million that the buyer may apply to specified separation costs post-closing. See Note 2. Discontinued Operations.

The following table details the major components of other liabilities:

Warranty Accruals

Estimated warranty program claims are provided for at the time of sale. Amounts provided for are based on historical costs and adjusted for new claims. The changes in the carrying amount of product warranties were as follows:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

9. Restructuring and Related Activities

Restructuring and related activities are designed to better align the Company's operations with current market conditions through targeted facility consolidations, headcount reductions, and other measures to further optimize operations.

During the year ended December 31, 2025, the Company recorded restructuring charges of $3.8 million related to headcount reductions across the Company primarily to rightsize operating expenses subsequent to the sale of CMM. The Company recorded $0.8 million in restructuring charges within "Gross profit" and the remaining $3.0 million within "Operating expenses" on the Consolidated Statement of Earnings for the year ended December 31, 2025.

During the year ended December 31, 2024, the Company recorded restructuring charges within the PD segment of $3.4 million for severance pay and benefits related to headcount reductions and for costs associated with transferring certain capacitors manufacturing to existing facilities to further optimize operations. The Company recorded $1.9 million in restructuring charges within "Gross profit" and the remaining $1.5 million within "Operating expenses" on the Consolidated Statement of Earnings for the year ended December 31, 2024.

During the year ended December 31, 2023, the Company recorded restructuring charges within the PD segment of $2.5 million for severance pay and benefits related to headcount reductions and for costs associated with transferring certain capacitors manufacturing to existing facilities to further optimize operations, and $0.8 million for Corporate charges. The Company recorded $1.1 million in restructuring charges within "Gross profit" and the remaining $2.2 million within "Operating expenses" on the Consolidated Statement of Earnings for the year ended December 31, 2023.

The following table details restructuring charges incurred by reportable segment:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table details the Company’s severance and other restructuring accrual activity:

The severance and restructuring accruals are recorded in the following line items on the Consolidated Balance Sheets:

10. Hedging Transactions and Derivative Instruments

The Company is affected by changes in certain market conditions. These changes in market conditions may adversely impact the Company’s financial performance and are referred to as "market risks." The Company uses derivatives as a risk management tool to mitigate the potential impact of certain market risks, which are primarily foreign currency risk related to ongoing business operations.

Cash Flow Hedging

The Company uses cash flow hedges to minimize the variability in cash flows of assets, liabilities, or forecasted transactions caused by fluctuations in foreign currency exchange rates. These derivatives, which are designated cash flow hedges, are carried at fair value. The changes in their fair values are recorded to "Accumulated other comprehensive income (loss)" ("AOCI") and reclassified to current earnings when the hedge contract matures or becomes ineffective.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

To manage its exposure to foreign currency exchange rates, the Company has entered into currency deliverable forward contracts. These derivative instruments allow the Company to hedge portions of its forecasted funding needs, which are generally expected to occur within the next twelve months and are denominated in currencies other than the U.S. dollar. The Company maintains a foreign currency cash flow hedging program primarily to reduce the risk that the U.S. dollar net cash inflows and non-U.S. dollar net cash outflows will be adversely affected by changes in foreign currency exchange rates. At December 31, 2025 and 2024, the notional value of the derivatives related to currency forward contracts, principally the Chinese yuan, Malaysian ringgit, Philippine peso, Japanese yen, and Mexican peso was $46.9 million and $43.4 million, respectively. The Company presents the impact of foreign exchange contracts qualifying as cash flow hedges within "Cost of goods sold" on the Consolidated Statements of Earnings, which is the same line used to present the earnings effect of the hedged item.

Economic (Non-Designated) Hedging

In addition to derivative instruments that are designated and qualify for hedge accounting, the Company also uses certain derivatives as economic hedges of foreign currency risk. Although these derivatives were not designated or did not qualify for hedge accounting, they are effectively economic hedges. The changes in fair value of these economic hedges are immediately recognized in earnings.

The Company uses foreign currency economic hedges to offset the earnings impact that fluctuations in foreign currency exchange rates have on certain monetary assets and liabilities denominated in non-functional currencies. The Company does not enter into these hedges for speculative reasons. These derivatives are carried at fair value with changes in fair value immediately recognized in earnings within "Other expense (income), net." In addition, these derivative instruments minimize the impact of exchange rate movements on the Company’s balance sheet, as the gains or losses on these derivatives are intended to offset gains and losses from the reduction of the hedged assets and liabilities. At December 31, 2025 and 2024, the notional value of the derivatives related to economic hedging was $181.6 million and $148.7 million, respectively.

The notional amounts of the derivative financial instruments do not necessarily represent amounts exchanged by the parties and, therefore, are not a direct measure of our exposure to the financial risks described above. The amounts exchanged are calculated by reference to the notional amounts and by other terms of the derivatives, such as foreign currency exchange rates or other financial indices. The Company does not view the fair values of its derivatives in isolation, but rather in relation to the fair values or cash flows of the underlying hedged transactions or other exposures. Virtually all of our derivatives are straightforward over-the-counter instruments with liquid markets.

Fair Value Measurements

All derivatives are carried at fair value on the Company’s Consolidated Balance Sheets. ASC 820, Fair Value Measurement, establishes a fair value hierarchy that requires the Company to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. ASC 820 establishes three levels of inputs that may be used to measure fair value as follows:

Level 1 - Quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of assets or liabilities.

Level 3 - Unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions.

The Company determines the fair values of its derivatives based on standard valuation models or observable market inputs such as quoted market prices or foreign currency exchange rates; therefore, the Company classifies the derivatives within Level 2 of the valuation hierarchy.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The fair values of derivative instruments held by the Company are as follows (in millions):

The pre-tax amount of unrealized gain (loss) recognized in accumulated other comprehensive loss on derivatives designated as hedging instruments is as follows (in millions):

The table above excludes tax expense of $0.6 million for the year ended December 31, 2025, and a tax benefit of $0.8 million and $1.1 million for the years ended December 31, 2024 and 2023, respectively.

The pre-tax impact of derivatives on the Consolidated Statements of Earnings is as follows (in millions):

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

11. Borrowings

Borrowings consist of the following:

Total debt principal payments over the next five years are as follows:

Revolving Credit Facility

On February 8, 2023, the Company entered into an Amended and Restated Credit Agreement (the "A&R Credit Agreement") that amends and restates the prior Credit Agreement, dated September 4, 2020, and provides for a senior secured revolving credit facility with borrowings in an aggregate principal amount at any time outstanding not to exceed $400.0 million (the "Credit Facility"). The A&R Credit Agreement, among other things, extends the maturity date of the Credit Facility from January 2, 2024 to February 8, 2028, replaces the London Inter-Bank Offered Rate (“LIBOR”) with the Term Secured Overnight Financing Rate (“Term SOFR”) as a reference rate available for borrowings, amends the minimum Interest Coverage Ratio, and amends certain other financial covenants with which the Company must comply, as described below.

On September 25, 2023, the Company amended its A&R Credit Agreement to, among other things, (a) permit the Company in connection with the acquisition of CD, to incur senior priority seller financing indebtedness (the “Seller Note”) in an aggregate principal amount of $122.9 million secured by certain assets (including equity interests) acquired in connection with such acquisition and the capital stock of Cornell Dubilier, LLC (the “Acquisition Assets”), which matured two years after the effective date of such Seller Note (the “Seller Note Maturity Date”) and (b) extend the requirement to pledge the Acquisition Assets that would otherwise constitute collateral under the Credit Agreement to the date that is 90 days after the Seller Note Maturity Date. All other terms remain the same as the A&R Credit Agreement dated February 8, 2023.

Up to $100.0 million of the Credit Facility will be available in Euro, Pounds Sterling, and other currencies requested by the Company and up to $50.0 million of the Credit Facility will be made available in the form of letters of credit. Undrawn amounts under the Credit Facility accrue a commitment fee at a per annum rate of 0.225% to 0.350%, based on a leverage ratio grid.

At any time during the term of the Credit Facility, the Company may request to increase the commitments under the Credit Facility or to establish one or more incremental term loan facilities under the Credit Facility in an aggregate principal amount not to exceed the sum of $200.0 million, plus additional amounts, so long as the senior secured leverage ratio does not exceed 2.00 to 1.00.

The A&R Credit Agreement includes requirements, to be tested quarterly, that the Company maintains (i) a minimum ratio of Consolidated EBITDA to consolidated cash interest expense of 3.00 to 1.00, (the "Interest Coverage Ratio"), (ii) a ratio of total indebtedness, minus netted cash in an aggregate amount not to exceed $50.0 million, to Consolidated EBITDA of 3.75 to 1.00 (the "Total Net Leverage Ratio"), and (iii) a maximum ratio of senior net secured indebtedness to Consolidated EBITDA of 3.25 to 1.00 (the "Senior Secured Net Leverage Ratio"). For these ratios, Consolidated EBITDA and consolidated interest expense are calculated using the most recent four consecutive fiscal quarters in a manner defined in the A&R Credit Agreement. At December 31, 2025, the Company was in compliance with these covenants and it expects to remain in compliance with all of its debt covenants over the next twelve months.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The interest rates under the A&R Credit Facility will be, at the Borrowers' option (1) (A) in the case of borrowings denominated in U.S. dollars Term SOFR, (B) in the case of borrowings denominated in Sterling, Daily Simple Sonia, or (C) for borrowings denominated in Euro, EURIBOR, in each case, plus the rates per annum determined from time to time based on the total net leverage ratio of the Company as of the end of and for the most recent period of four fiscal quarters for which financial statements have been delivered (the "Applicable Margin"); or (2) in the case of borrowings denominated in U.S. dollars, alternate base rate ("ABR") (as defined in the A&R Credit Agreement) plus the Applicable Margin. The Applicable Margin for Term SOFR, Daily Simple Sonia, or EURIBOR could range from 1.50% to 2.50% while the Applicable Margin for ABR could range from 0.50% to 1.50%.

The weighted-average interest rate on the Company's borrowings under the Credit Facility was 6.10%, 7.07%, and 6.55% for the years ended December 31, 2025, 2024, and 2023, respectively. The weighted-average commitment fee on the revolving lines of credit was 0.25%, 0.26%, and 0.23% for the years ended December 31, 2025, 2024 and 2023, respectively.

Seller Note

In connection with the acquisition of Cornell Dubilier on November 1, 2023, the Company obtained an interest-free Seller Note with aggregate principal payments of $122.9 million. The Company recorded the Seller Note on the acquisition date at its present value of $109.9 million by discounting the future principal payments using an imputed rate of interest of approximately 7.1% in accordance with accounting guidance in ASC 835, Interest. The Company has made a successful indemnity claim against the Seller Note of $0.2 million. The Company repaid $50.0 million of the Seller Note on November 1, 2024 and the remaining $72.7 million on October 31, 2025. The Company recognized imputed interest expense on the Seller Note of approximately $4.2 million, $7.5 million and $1.3 million for the years ended December 31, 2025, 2024, and 2023, respectively.

Interest expense and interest income for the years ended December 31, 2025, 2024, and 2023 were as follows:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

12. Income Taxes

The components of earnings before income taxes and discontinued operations were:

Income tax expense (benefit) is comprised of the following:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company has adopted ASU 2023-09 prospectively as of the year ended December 31, 2025. The reconciliation of income tax expense at the U.S. Federal income tax rate to the Company’s actual income tax expense (benefit) was as follows:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As previously disclosed for the years ended December 31, 2024 and 2023, the effective income tax rate differs from the statutory federal income tax rate as follows:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The components of the Company’s deferred tax assets and liabilities included the following:

The Company recorded valuation allowances of $45.8 million and $48.7 million at December 31, 2025 and 2024, respectively, against deferred tax assets from continuing operations as the Company believes it is more likely than not that these assets will not be realized. At December 31, 2025, we recognized an income tax benefit of $2.9 million million related to the reversal of deferred tax asset valuation allowance on certain U.S. state tax attributes. The Company routinely reviews the future realization of deferred tax assets based on projected future reversal of taxable temporary differences, available tax planning strategies, and projected future taxable income. Management believes that it is more likely than not that the Company will realize the benefits of the remaining deferred tax assets.

At December 31, 2025, the Company had $2.4 million of U.S. federal net operating losses that are available, of which none will expire within the next 5 years and of which $2.4 million will expire in the next 6 to 10 years. There are $3.0 million of domestic state net operating losses that are available between 2027 and 2043. There are $311.1 million of non-U.S. net operating loss carryforwards, of which $0.1 million will expire in the next 5 years; $3.3 million will expire in the next 6 to 10 years; $307.0 million will expire in the next 11 to 20 years; $0.6 million can be carried forward indefinitely; and $0.1 million is a capital loss carried forward indefinitely.

The Company has $22.3 million of U.S. federal research and development credits that begin to expire in 2026 and $2.3 million of foreign tax credits that begin to expire in 2034. In addition, the Company has $15.2 million of state credits, of which $1.6 million will expire between 2026 and 2040 if unused, and $13.6 million can be carried forward indefinitely.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As of December 31, 2025, the Company has approximately $1.5 billion of undistributed earnings in its foreign subsidiaries. Approximately $0.3 billion of these earnings are no longer considered permanently reinvested. The incremental tax cost to repatriate these earnings to the U.S. is immaterial. The Company has not provided for deferred taxes on approximately $1.2 billion of undistributed earnings from non-U.S. subsidiaries which are indefinitely reinvested in operations. If these earnings were distributed, they would likely not be subject to U.S. federal income tax because they were previously taxed under the Tax Reform Act. We would likely be required to accrue and pay U.S. state and local taxes and withholding taxes payable to various countries. It is not practical to determine the income tax liability that would be payable if such earnings were not reinvested indefinitely.

Unrecognized Tax Benefits

The Company records interest and penalties associated with unrecognized tax benefits as a component of income tax expense. During the years ended December 31, 2025, 2024, and 2023, the Company recorded interest and penalty expense related to unrecognized tax benefits. As of of December 31, 2025 and 2024 the Company accrued interest and penalties of $0.6 million and $0.3 million, respectively, which were included in Other liabilities on the Consolidated Balance Sheets. During the year ended December 31, 2023, the Company recorded no interest or penalty expense.

The Company's tax returns are routinely audited by the tax authorities in the relevant jurisdictions. Our U.S. federal returns remain open to examination for tax years 2022 to 2024. As of December 31, 2025, we have no tax years under examination by the Internal Revenue Service (IRS). The Company conducts business in multiple foreign, non-U.S. jurisdictions including Malaysia, China, Philippines, India, and the United Kingdom; tax years are typically subject to examination for three to ten years. We are currently under audit by local tax authorities in Malaysia and India for tax years 2018-2024 and fiscal year 2023, respectively.

Included in the balance of total unrecognized tax benefits at December 31, 2025 are potential benefits of $1.5 million, which if recognized, would affect the effective rate on earnings from continuing operations. Given the Company's current valuation allowance position, no benefit is expected to result from the reversal of any uncertain tax position associated with the acquired attributes.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following is a supplemental schedule of cash paid for income taxes for those individual jurisdictions equaling 5% or more of the total income taxes paid (net of refunds) for the year ended December 31, 2025:

13. Equity Incentive Program

The Company maintains equity compensation plans that provide for the issuance of Knowles stock to directors, executive officers, and other employees. The maximum number of shares available for issuance under the plans is 23.4 million, of which 11.4 million were available for future awards at December 31, 2025.

The following table summarizes the stock-based compensation expense:

(1) Stock-based compensation shown here reflects the expense included in continuing operations. Stock-based compensation expense included in discontinued operations totaled $0.6 million and $6.2 million for the years ended December 31, 2024 and 2023, respectively. There was no stock-based compensation expense included in discontinued operations for the year ended December 31, 2025.

Compensation expense for stock-based awards is measured based on the fair value of the awards as of the date the stock-based awards are granted. Estimated forfeitures are reflected in expense based on historical experience at the time of grant and revised in subsequent periods if actual forfeitures differ from those estimates. Compensation costs for stock-based awards are amortized over their service period.

Stock Options

No stock options were granted during the years ended December 31, 2025, 2024, and 2023.

The exercise price per share for the stock options granted by the Company was equal to the closing price of Knowles' stock on the NYSE on the date of the grant. The period during which options granted by the Company were exercisable was fixed by Knowles' Compensation Committee of the Board of Directors at the time of grant. Generally, stock options vest one-third on each of the first three anniversaries of the grant date and expire seven years from the grant date.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table summarizes the Company's stock option activity:

There was no unrecognized compensation expense related to stock options at December 31, 2025.

Other information regarding the exercise of stock options is listed below:

RSUs

The following table summarizes the Company's RSU activity:

(1) The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy statutory tax withholding requirements.

RSUs vest based on the passage of time. Generally, RSUs have a three year vesting schedule and vest one-third on each of the first three anniversaries of the grant date. The fair value of RSUs vested during the year ended December 31, 2025 was $15.4 million. At December 31, 2025, $16.7 million of unrecognized compensation expense related to RSUs is expected to be recognized over a weighted-average period of 1.4 years.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

PSUs

Awards with market conditions

The Company grants PSUs to senior management. In each case, the awards cliff vest three years following the grant date. PSUs are settled in shares of the Company's common stock. Depending on the Company's overall performance relative to the applicable measures, the size of the PSU awards are subject to adjustment, up or down, resulting in awards at the end of the performance period that can range from 0% to 225% of target. The Company ratably recognizes the expense over the applicable service period for each grant of PSUs. The fair value of PSUs with market conditions is determined by using a Monte Carlo simulation. For the awards granted in February 2025, 2024, and 2023, the number of PSUs that may be earned and vest is based on total shareholder return (“TSR”) relative to the component companies of the Russell 2000 Index over a three-year performance period.

The COVID-19 pandemic brought on unique and unprecedented challenges to the Company, particularly in the hearing health and medtech markets. Many of the Company's executive compensation programs were affected, including outstanding PSU awards. Due to the impact of the COVID-19 pandemic on the Company’s overall business performance, effective February 8, 2021, the Company’s Compensation Committee approved certain modifications to PSUs granted in February 2020. For the awards granted in February 2020 (the “2020 PSUs”), the number of PSUs that may be earned and vest was originally based on TSR relative to the component companies of the S&P Semiconductor Select Industry Index over a three-year performance period. The modified award replaces the S&P Semiconductor Select Industry Index with the Russell 2000 Index. The Company is a member of the Russell 2000 Index, which represents a broader, more diversified index that better aligns with the Company's strategy. Service conditions were not modified. The modification of the 2020 PSUs affected eight employees and resulted in total incremental compensation expense of $4.7 million, which was recognized over the remaining service period. In February 2023, the 2020 PSUs were converted from 261,770 PSUs to 120,677 shares of common stock based on achievement of the modification conditions.

Awards with performance conditions

On February 18, 2025 the Company granted a special PSU award to its Chief Executive Officer of 81,788 target PSUs with a grant date fair value of $1.5 million. This award is eligible to vest based on the achievement of a minimum non-GAAP diluted earnings per share amount and specified revenue goals over a potential five-year performance period. If the goals are not met during the initial three-year performance period, it may be extended an additional two years at a reduced payout level. Achievement could range from 0% to 400% of the target number of PSUs. The Company will recognize the expense for this award over the applicable service period and adjust the expense for the expected achievement of performance conditions as necessary.

The following table summarizes the Company's PSU activity:

(1) The number of PSUs shown reflects 100% of the target award; actual payouts may differ based on performance.

(2) The number of PSUs vested includes shares that the Company withheld on behalf of employees to satisfy statutory tax withholding requirements.

The fair value of PSUs vested during the year ended December 31, 2025 was $4.1 million. At December 31, 2025, $8.5 million of unrecognized compensation expense related to PSUs is expected to be recognized over a weighted-average period of 1.2 years.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

14. Commitments and Contingent Liabilities

From time to time, the Company is involved in various legal proceedings and claims arising in the ordinary course of its business. The majority of these claims and proceedings relate to commercial, warranty, employment, and intellectual property matters. Although the ultimate outcome of any legal proceeding or claim cannot be predicted with certainty, based on present information, including management’s assessment of the merits of the particular claim, the Company believes that the disposition of these legal proceedings or claims, individually or in the aggregate, after taking into account recorded accruals and the availability and limits of insurance coverage, will not have a material adverse effect on its cash flow, results of operations, or financial condition.

The Company owns many patents and other intellectual property pertaining to its products, technology, and manufacturing processes. Some of the Company's patents have been and may continue to be infringed upon or challenged by others. In appropriate cases, the Company has taken and will take steps to protect and defend its patents and other intellectual property, including through the use of legal proceedings in various jurisdictions around the world. Such steps have resulted in and may continue to result in retaliatory legal proceedings, including litigation or other legal proceedings in various jurisdictions and forums around the world alleging infringement by the Company of patents owned by others. The costs of investigations and legal proceedings relating to the enforcement and defense of the Company’s intellectual property may be substantial. Additionally, in multi-forum disputes, the Company may incur adverse judgments with regard to certain claims in certain jurisdictions and forums while still contesting other related claims against the same opposing party in other jurisdictions and forums.

Intellectual Property Infringement Claims

The Company may, on a limited customer specific basis, provide contractual indemnities for certain losses that arise out of claims that its products infringe on the intellectual property of others. It is not possible to determine the maximum potential amount under these indemnification agreements due to the unique facts and circumstances involved in each particular agreement. Historically, the Company has not made significant payments under such indemnity arrangements. The Company’s legal accruals associated with these indemnity arrangements were not significant at December 31, 2025 and 2024.

15. Employee Benefit Plans

Knowles sponsors its own defined contribution plans. The Company's expense relating to defined contribution plans was $6.5 million, $5.5 million, and $5.2 million on a continuing operations basis for the years ended December 31, 2025, 2024, and 2023, respectively.

As of December 31, 2025, Knowles sponsors three defined benefit pension plans to certain non-U.S. employees. The two plans in the U.K. are closed to new participants and substantially all participants in these plans are retirees. The plan in the Philippines is open to new participants. These plans are considered direct obligations of the Company and have been recorded within the accompanying Consolidated Financial Statements. The Company divested its plan in Taiwan with the sale of CMM on December 27, 2024. See Note 2. Discontinued Operations.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Non-U.S. Defined Benefit Pension Plans

Obligations and Funded Status

The following tables summarize the balance sheet impact, including the benefit obligations, assets, and funded status associated with the Company's defined benefit plans for non-U.S. participants:

(1) Reflects the divestiture of the Company's defined benefit plan in Taiwan in connection with the sale of CMM on December 27, 2024 .

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Pension plans with projected benefit obligations in excess of plan assets consisted of the following:

Pension plans with accumulated benefit obligations in excess of plan assets consisted of the following:

Net Periodic Benefit Cost

Components of the net periodic benefit cost were as follows:

The components of net periodic benefit cost other than service cost are presented in "Other (income) expense, net" on the Consolidated Statements of Earnings. The service cost component is presented within "Cost of goods sold," "Research and development expenses," and "Selling and administrative expenses" on the Consolidated Statements of Earnings based on the nature of services performed by the related employees.

Assumptions

The Company determines actuarial assumptions on an annual basis. The actuarial assumptions used for the Company’s defined benefit plans for non-U.S. participants will vary depending on the applicable country and as such, the tables below include these assumptions by country, as well as in total.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The assumptions used in determining the benefit obligations were as follows:

(2) The Company's defined benefit plan in Taiwan was divested with the sale of CMM on December 27, 2024. Prior to the sale, the Taiwan benefit obligation was remeasured using the above discount rate and the plan assets were remeasured to fair value.

The assumptions used in determining the net periodic benefit cost were as follows:

The Company’s discount rate assumptions are determined by developing yield curves based on high quality corporate bonds with maturities matching the plans’ expected benefit payment streams. The plans’ expected cash flows are then discounted by the resulting year-by-year spot rates.

Plan Assets

The primary financial objective of the plans is to secure participant retirement benefits. Accordingly, the key objective in the plans’ financial management is to promote stability and, to the extent appropriate, growth in the funded status. Related and supporting financial objectives are established in conjunction with a review of current and projected plan financial requirements.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As it relates to the funded defined benefit pension plans, the Company’s funding policy is consistent with the funding requirements of applicable local non-U.S. laws. The Company is responsible for overseeing the management of the investments of the plans’ assets and otherwise ensuring that the plans’ investment programs are in compliance with applicable local law, other relevant legislation, and related plan documents. Where relevant, the Company has retained professional investment managers to manage the plans’ assets and investment process. The investment managers, in executing their investment processes, have the authority and responsibility to select appropriate investments in the asset classes specified by the terms of their applicable prospectus or investment manager agreements with the plans.

The assets of the plans are invested to achieve an appropriate return for the plans consistent with a prudent level of risk. The asset return objective is to achieve, as a minimum over time, the passively managed return earned by market index funds, weighted in the proportions outlined by the asset class exposures identified in the plans’ strategic allocation. The expected return on plan assets assumptions are developed through analysis of historical market returns, statistical analysis, current market conditions, and the past experience of plan asset investments.

Fair Value Measurements

The fair values of plan assets by asset category within the ASC 820 hierarchy were as follows:

See Note 10. Hedging Transactions and Derivative Instruments for additional information on the fair value hierarchy. There were no significant transfers between Level 1 and Level 2 assets during the years ended December 31, 2025 and 2024.

Fixed income investments include government and municipal securities and corporate bonds, which are valued based on yields currently available on comparable securities of issuers with similar credit ratings.

Common stock funds consist of mutual funds and collective trusts. Mutual funds are valued by obtaining quoted prices from nationally recognized securities exchanges. Collective trusts are valued using net asset value (the "NAV") as of the last business day of the year. The NAV is based on the underlying value of the assets owned by the fund minus its liabilities and then divided by the number of shares outstanding. The value of the underlying assets is based on quoted prices in active markets.

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Future Estimates

Benefit Payments

Estimated future benefit payments to retirees, which reflect expected future service, are as follows:

Contributions

Generally, annual contributions are made at such times and in such amounts as required by law and agreed with the trustees of the non-U.S. defined benefit plans. The Company estimates it will pay $0.9 million during the year ended December 31, 2026 related to contributions to these plans. This amount may vary based on updated funding agreements with the trustees of these plans.

16. Other Comprehensive Earnings

The amounts recognized in other comprehensive earnings (loss) were as follows:

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table summarizes the changes in balances of each component of accumulated other comprehensive loss, net of tax:

(1) For the year ended December 31, 2024, the cumulative foreign currency translation loss in other comprehensive loss includes a $3.4 million foreign currency translation gain reclassified to earnings upon the sale of CMM. See Note 2. Discontinued Operations for more information.

The following table summarizes the amounts reclassified from accumulated other comprehensive loss to earnings:

17. Segment Information

The Company determines its operating segments consistent with the manner in which it manages its operations and evaluates performance for internal review and decision making. These segments were determined in accordance with ASC 280, Segment Reporting. The Company’s segments engage in business activities from which they earn revenues and incur expenses, have discrete financial information available, and whose financial results are regularly reviewed and used by the chief operating decision maker ("CODM") to evaluate segment performance, allocate resources, and determine management incentive compensation.

The Company's CODM is the President and Chief Executive Officer, who reviews the results and performance for each operating segment to manage operations and make decisions regarding resource allocations. The financial measures used by the CODM to assess segment performance include Revenues, Adjusted cost of goods sold, Adjusted research and development expenses, Adjusted selling and administrative expenses, and Segment adjusted earnings before interest and income taxes. The CODM uses these financial metrics to view operating trends, benchmark performance between periods, and to monitor budget-to-actual variances.

The Precision Devices segment aggregates three operating segments into one reportable segment based on similar economic characteristics stemming from similar products, production processes, type or class of customers, and distribution methods. The MedTech & Specialty Audio reportable segment has one operating segment. The Company's two reportable segments are as follows:

• Precision Devices ("PD")

Our PD segment specializes in the custom design and delivery of high performance capacitor products and RF solutions primarily serving the defense, industrial, medtech, and electrification/energy markets. PD has sales, support, and engineering facilities in North America, Europe, and Asia as well as manufacturing facilities in North America and Asia.

• MedTech & Specialty Audio ("MSA")

Our MSA segment designs and manufactures balanced armature speakers and microphones used in hearing health and specialty audio applications that serve the medtech and industrial markets. MSA has sales, support, and engineering facilities in North America, Europe, and Asia, as well as manufacturing facilities in Asia.

Information regarding the results of the Company's reportable segments is as follows:

(1) Other segment items primarily include foreign currency exchange gains and losses and other non-operating income and expense.

(2) Other expenses include non-recurring professional service fees related to the execution of various reorganization projects and foreign currency exchange rate impacts on restructuring balances.

(1) Other segment items primarily include foreign currency exchange gains and losses and other non-operating income and expense.

(2) Other expenses include non-recurring professional service fees related to the execution of various reorganization projects and foreign currency exchange rate impacts on restructuring balances.

(1) Other segment items primarily include foreign currency exchange gains and losses and other non-operating income and expense.

(2) Other expenses include non-recurring professional service fees related to the execution of various reorganization projects and foreign currency exchange rate impacts on restructuring balances.

Other information regarding the Company's reportable segments is as follows:

Information regarding assets of the Company's reportable segments is as follows:

(1) Corporate assets include Syntiant Corp. preferred stock of $83.4 million and $77.2 million at December 31, 2025 and 2024, respectively, and a note receivable from Syntiant totaling $5.9 million and $6.4 million at December 31, 2025 and 2024, respectively. Corporate assets also include the portion of right-of-use operating lease assets subleased by Syntiant, which totaled $5.2 million and $0.3 million at December 31, 2025 and 2024, respectively.

The following table details revenues by geographic location. Revenues are attributed to regions based on the location of the Company's direct customer, which in some instances is an intermediary and not necessarily the end user. Long-lived assets are comprised of net property, plant, and equipment and operating lease right-of-use assets. These assets have been classified based on the geographic location of where they reside. The Company's businesses are based primarily in North America, Asia, and Europe.

The Company's customers that accounted for 10% or more of total revenues in 2025 were WS Audiology A/S and TTI, Inc. WS Audiology is a hearing aid manufacturer and TTI is a distributor of electromechanical components. They each represented the following percentages of total Company revenues:

• Less than 10% of total revenues.

18. Earnings per Share

Basic and diluted earnings per share were computed as follows:

For the years ended December 31, 2025, 2024, and 2023, the weighted-average number of anti-dilutive potential common shares for stock-based awards excluded from the calculation of diluted earnings per share above was 0.8 million, 0.7 million, and 1.9 million, respectively.

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

Years Ended December 31, 2025, 2024, and 2023

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

(a) Evaluation of Disclosure Controls and Procedures

We conducted an evaluation, under the supervision and with the participation of management, including the chief executive officer (“CEO”) and chief financial officer (“CFO”), of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of December 31, 2025.

These disclosure controls and procedures are designed to ensure that information required to be disclosed in our reports that are filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Our disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that this information is accumulated and communicated to management, including the principal executive and principal financial officers, or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure.

Based on the evaluation, the CEO and CFO have concluded that these disclosure controls and procedures were effective as of December 31, 2025.

(b) Management's Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act). Under management’s supervision, an evaluation of the effectiveness of the Company’s internal control over financial reporting was conducted based on the criteria set forth in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”). Based on our evaluation under the framework in Internal Control - Integrated Framework (2013) issued by the COSO, our management concluded that our internal control over financial reporting was effective as of December 31, 2025.

PricewaterhouseCoopers LLP, the Company’s independent registered public accounting firm, has audited the effectiveness of the Company’s internal control over financial reporting as of December 31, 2025, as stated in their report which appears herein.

(c) Changes in Internal Control Over Financial Reporting

There has been no change in our internal control over financial reporting that occurred during the fourth quarter of 2025 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

(d) Inherent Limitations on Effectiveness of Controls

Our management, including the CEO and CFO, do not expect that our disclosure controls or our internal control over financial reporting will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. The design of a control system must reflect the fact that the benefits of controls must be considered relative to their costs. Further, because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, will be detected. These inherent limitations include the realities that judgments in decision making can be faulty and that breakdowns can occur because of simple error or mistake. Controls can also be circumvented by the individual acts of some persons, by intentionally falsified documentation, by collusion of two or more individuals within Knowles or third parties, or by management override of the controls. The design of any system of controls is based in part on certain assumptions about the likelihood of future events and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Projections of any evaluation of controls effectiveness to future periods are subject to risks. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures.

ITEM 9B. OTHER INFORMATION

Director and Officer Trading Plans and Arrangements

During the quarter ended December 31, 2025, no director or officer adopted or terminated any Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE

The information with respect to the directors and the board committees of the Company and other corporate governance matters required to be included pursuant to this Item 10 will be included in the section entitled "Proposal 1 - Election of Directors" of the Proxy Statement for its 2026 Annual Meeting of Stockholders (the "2026 Proxy Statement") that will be filed with the SEC pursuant to Rule 14a-6 under the Exchange Act in accordance with applicable SEC deadlines and is incorporated in this Item 10 by reference.

The information with respect to the executive officers of the Company required to be included pursuant to this Item 10 is included under the caption “Information about our Executive Officers” in Part I of this Form 10-K and is incorporated in this Item 10 by reference.

Item 405 of Regulation S-K calls for disclosure of any known late filing or failure by an insider to file a report required by Section 16(a) of the Exchange Act. To the extent disclosure for delinquent reports is made, it can be found under the caption "Delinquent Section 16(a) Reports" in our 2026 Proxy Statement and is incorporated in this Item 10 by reference.

The Company has adopted a Code of Business Conduct that applies to all directors, officers, and employees, including its principal executive officer, principal financial officer, principal accounting officer, and controller. A copy of this Code of Business Conduct can be found on our website at https://investor.knowles.com/governance/governance-documents. In the event of any amendment to, or waiver from, the Code of Business Conduct affecting our principal executive officer, principal financial officer, principal accounting officer, or controller, we will publicly disclose the amendment or waiver by posting the information on our website or filing a Form 8-K with the SEC.

The Company has adopted an Insider Trading Policy, which governs the purchase, sale, and/or other dispositions of our securities by directors, officers, employees, and other covered persons, and is designed to promote compliance with insider trading laws, rules, and regulations, and listing standards applicable to us. Our Insider Trading Policy is filed as Exhibit 19.1 to this Form 10-K. Additional information concerning our Insider Trading Policy will be included in the section entitled "Corporate Governance – Insider Trading Policy" in our 2026 Proxy Statement, and that information is incorporated by reference herein.

ITEM 11. EXECUTIVE COMPENSATION

The information with respect to executive compensation and the compensation committee required to be included pursuant to this Item 11 will be included in our 2026 Proxy Statement under the headings "Executive Compensation" and "Directors' Compensation" and is incorporated in this Item 11 by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information regarding security ownership of certain beneficial owners and management that is required to be included pursuant to this Item 12 will be included in our 2026 Proxy Statement under the heading "Security Ownership of Certain Beneficial Owners and Management" and is incorporated into this Item 12 by reference.

Equity Compensation Plans

We currently maintain equity compensation plans that provide for the issuance of Knowles stock to directors, executive officers, and other employees. The following table sets forth information regarding outstanding restricted stock units, performance share units, stock options, and shares available for future issuance under these plans as of December 31, 2025:

• (b)
• (c)_

(1) Column (a) consists of shares issuable pursuant to outstanding restricted stock units, performance share units, and stock option awards under the Company’s 2018 Equity and Cash Incentive Plan and 2016 Equity and Cash Incentive Plan. As the size of the performance share units are subject to attainment of up to 225% of target, the maximum number of securities to be issued upon exercise of outstanding options, warrants, and rights is 4,889,917. No further awards may be made under the 2016 Equity and Cash Incentive Plan. Restricted stock units and performance share units are not reflected in the weighted-average exercise price in column (b).

(2) Column (c) consists of shares available for future issuance under the 2018 Equity and Cash Incentive Plan. The 2018 Equity and Cash Incentive Plan provides for stock options and SSAR grants, restricted stock awards, restricted stock unit awards, unrestricted stock awards, performance share awards, cash performance awards, and deferred stock units. Shares subject to stock options and SSARs will reduce the shares available for awards under the 2018 Equity and Cash Incentive Plan by one share for every one share granted. Performance share awards, restricted stock, unrestricted stock, restricted stock units that are settled in shares of common stock, and deferred stock units will reduce the shares available for awards under the 2018 Equity and Cash Incentive Plan by 1.75 shares for every one share awarded. Cash performance awards do not count against the pool of available shares. The number of shares earned when an award is exercised, vested, or is paid out will count against the pool of available shares, including shares withheld to pay taxes or an option’s exercise price. Shares subject to an award under the 2018 Equity and Cash Incentive Plan and the 2016 Equity and Cash Incentive Plan that are canceled, terminated, forfeited, or that expire will be available for reissuance under the 2018 Equity and Cash Incentive Plan.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this Item 13 will be included in our 2026 Proxy Statement under the headings "Corporate Governance" and "Procedures for Approval of Related Person Transactions" and is incorporated in this Item 13 by reference.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this Item 14 will be included in our 2026 Proxy Statement under the caption "Proposal 4 - Ratification of the Appointment of Independent Registered Public Accounting Firm" and is incorporated in this Item 14 by reference.

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

a)The following documents are filed as part of this report:

(1) Financial Statements:

• The financial statements are set forth under “Item 8. Financial Statements and Supplementary Data” of this Form 10-K.

(2) Financial Statement Schedules:

• The following financial statement schedule is set forth under “Item 8. Financial Statements and Supplementary Data” of this Form 10-K. All other schedules have been omitted because they are not required, are not applicable or the required information is included in the financial statements or the notes thereto.
• Schedule II - Valuation and Qualifying Accounts

(3) Exhibits

Exhibit Number Description Incorporated by Reference / Form Incorporated by Reference / File No. Incorporated by Reference / Date of Filing Incorporated by Reference / Exhibit Number

3.1 Restated Certificate of Incorporation of Knowles Corporation 10-Q 001-36102 7/30/2019 3.1 3.2 Fifth Amended and Restated By-Laws of Knowles Corporation 8-K 001-36102 10/31/2024 3.1 4.1 Description of Securities 10-K 001-36102 2/9/2023 4.1 10.1† Knowles Corporation Senior Executive Change-in-Control Severance Plan 8-K 001-36102 5/1/2020 10.4 10.2† Knowles Corporation Executive Severance Plan 8-K 001-36102 5/1/2020 10.3 10.3† Nonemployee Director Deferral Program 10-K 001-36102 3/28/2014 10.5.7 10.4† Executive Deferred Compensation Plan 8-K 001-36102 2/28/2014 10.6 10.5† Executive Officer Annual Incentive Plan 8-K 001-36102 2/28/2014 10.5 10.6† Knowles Corporation 2016 Equity and Cash Incentive Plan, incorporated herein by reference to Appendix B to the Registrant’s Definitive Proxy Statement DEF 14A 001-36102 3/15/2016 Appendix B 10.7† Form of Restricted Stock Unit Award Agreement dated May 2, 2016 10-Q 001-36102 8/9/2016 10.15 10.8† Form of Stock Option Award Agreement dated May 2, 2016 10-Q 001-36102 8/9/2016 10.16 10.9† Addendum to Stock Option Agreement and Restricted Stock Award Agreement for Non-U.S Employees dated May 2, 2016 10-Q 001-36102 8/9/2016 10.17 10.10† Amendment Number One to the Knowles Corporation 2016 Equity and Cash Incentive Plan, dated November 18, 2016 10-K 001-36102 2/21/2017 10.37 10.11† Form of Restricted Stock Unit Award Agreement, dated November 17, 2016 10-K 001-36102 2/21/2017 10.38 10.12† Form of Stock Option Award Agreement, dated November 17, 2016 10-K 001-36102 2/21/2017 10.39 10.13† Form of Performance Share Unit Award Agreement dated February 16, 2017 10-Q 001-36102 4/28/2017 10.1 10.14 Amended and Restated Credit Agreement dated as of February 8, 2023, among Knowles Corporation, JPMorgan Chase Bank, N.A. and the other lenders thereto 8-K 001-36102 2/9/2023 10.1

| | | | | | | |

10.15 Amendment No. 1 to Amended and Restated Credit Agreement dated as of September 25, 2023, among Knowles Corporation, JP Morgan Chase Bank N.A., and the other lenders party thereto 8-K 001-36102 9/28/2023 10.1 10.16 Consent Memorandum, dated June 17, 2024, among JPMorgan Chase Bank, N.A., and the other lenders party thereto 10-Q 001-36102 7/31/2024 10.1 10.17† Knowles Corporation Nonemployee Director Deferral Program 10-Q 001-36102 10/30/2017 10.2 10.18† Knowles Corporation 2018 Equity and Cash Incentive Plan DEF 14A 001-36102 3/14/2018 Appendix B 10.19† Amended and Restated Knowles Corporation 2018 Equity and Cash Incentive Plan 8-K 001-36102 5/1/2020 10.1 10.20† Form of Performance Award Agreement 10-Q 001-36102 4/30/2018 10.1 10.21† Form of Restricted Stock Unit Award Agreement 10-Q 001-36102 7/30/2018 10.1 10.22† Form of Stock Option Award Agreement 10-Q 001-36102 7/30/2018 10.2 10.23† Form of Performance Award Agreement 10-Q 001-36102 7/30/2018 10.3 10.24† Knowles Corporation Deferred Compensation Plan 8-K 001-36102 11/04/2019 10.1 10.25† Form of Non-Employee Director Restricted Stock Unit Award Agreement 8-K 001-36102 5/1/2020 10.2 10.26† Special Performance Award Agreement 8-K 001-36102 2/25/2025 10.1 10.27 Purchase and Sale Agreement dated September 15, 2023, among Knowles Corporation, Knowles Capital Holdings, Inc., Knowles Intermediate PD Holdings, LLC, Cornell Dubilier Electronics, Inc., CD Aero, LLC, Kaplan Electronics, Inc. and the Sellers' Representative, Shareholders and Guarantors party thereto 8-K 001-36102 9/21/2023 10.1 10.28 Amendment to Purchase Agreement dated November 1, 2023, by and among Knowles Capital Holdings, Inc. and Knowles Intermediate PD Holdings, LLC and James Kaplan, in his capacity as Sellers' Representative 10-Q 001-36102 11/2/2023 10.2 10.29 Secured Promissory Note issued by Knowles Capital Holdings, Inc. and Knowles Intermediate PD Holdings, LLC to James P. Kaplan on November 1, 2023 10-Q 001-36102 11/2/2023 10.4 10.30 Guarantee and Collateral Agreement dated as of November 1, 2023, among Knowles Corporation, as Guarantor, Knowles Capital Holdings, Inc. and Knowles Intermediate Holdings, Inc. as Grantors and James P. Kaplan, as Sellers' Representative 10-Q 001-36102 11/2/2023 10.5 10.31 Purchase and Sale Agreement, dated September 18, 2024, by and between Knowles Corporation and Syntiant Corporation 8-K 001-36102 9/18/2024 2.1 19.1 Insider Trading and Confidentiality Policy 10-K 001-36102 2/13/2025 19.1 21.1 Subsidiaries of Knowles Corporation X 23.1 Consent of PricewaterhouseCoopers LLP X 24.1 Power of Attorney (included on the Signature page of this Annual Report on Form 10-K) X 31.1 Certificate of Principal Executive Officer Required Under Section 302 of the Sarbanes-Oxley Act of 2002 X 31.2 Certificate of Principal Financial Officer Required Under Section 302 of the Sarbanes-Oxley Act of 2002 X 32.1 Joint Certificate of the Principal Executive Officer and Principal Financial Officer Required Under Section 906 of the Sarbanes-Oxley Act of 2002 X 97.1 Knowles Corporation Policy on Recoupment of Incentive Compensation 10-K 001-36102 2/13/2025 97.1

101 The following materials from the Knowles Corporation Annual Report on Form 10-K for the year ended December 31, 2025 formatted in inline XBRL (eXtensible Business Reporting Language): (i) Consolidated Statements of Earnings, (ii) Consolidated Statements of Comprehensive Earnings, (iii) Consolidated Balance Sheets, (iv) Consolidated Statements of Equity, (v) Consolidated Statements of Cash Flows and (vi) Notes to the Consolidated Financial Statements X

104 Cover Page Interactive Data File (embedded within Inline XBRL documents and included in Exhibit 101) X

† Indicates the exhibit is a management contract or compensatory plan or arrangement

ITEM 16. FORM 10-K SUMMARY

None.