# Omnicom Group (OMC) 10-Q SEC filing - Q2 FY2026

- Filed: Jul 28, 2026, 8:59 PM EDT
- Fiscal quarter: Q2 FY2026
- Calendar quarter: Q2 2026
- Accession: 0000029989-26-000019
- OpenCapital page: https://www.opencapital.sh/filings/0000029989-26-000019
- Markdown URL: https://www.opencapital.sh/filings/0000029989-26-000019.md
- Official SEC filing index: https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/0000029989-26-000019-index.htm

## Filing documents

- [10-Q (omc-20260630.htm)](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/omc-20260630.htm)
- [EX-10.1 (a2026q2exhibit101.htm)](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit101.htm)
- [EX-31.1 (a2026q2exhibit311.htm)](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit311.htm)
- [EX-31.2 (a2026q2exhibit312.htm)](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit312.htm)
- [EX-32 (a2026q2exhibit32.htm)](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit32.htm)

---

## 10-Q

SEC source: [omc-20260630.htm](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/omc-20260630.htm)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

### FORM 10-Q

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2026

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number: 1-10551

### OMNICOM GROUP INC.

(Exact name of registrant as specified in its charter)

|  |  |
| --- | --- |
| New York | 13-1514814 |
| (State or other jurisdiction of incorporation or organization) | (IRS Employer Identification No.) |
| 280 Park Avenue, New York, NY | 10017 |
| (Address of principal executive offices) | (Zip Code) |

Registrant’s telephone number, including area code: (212) 415-3600

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Securities Registered Pursuant to Section 12(b) of the Act:

| Title of each class / Common Stock, $0.15 Par Value | Trading Symbols / OMC | Name of each exchange on which registered / New York Stock Exchange |
| --- | --- | --- |
| 0.800% Senior Notes due 2027 | OMC/27 | New York Stock Exchange |
| 1.400% Senior Notes due 2031 | OMC/31 | New York Stock Exchange |
| 3.700% Senior Notes due 2032 | OMC/32 | New York Stock Exchange |
| 2.250% Senior Notes due 2033 | OMC/33 | New York Stock Exchange |
| 3.850% Senior Notes due 2034 | OMC/34 | New York Stock Exchange |

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☑ Accelerated filer ☐ Non-accelerated filer ☐

Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☑

As of July 22, 2026, there were 274,345,967 shares of Omnicom Group Inc.'s common stock, par value $0.15 per share, outstanding.

OMNICOM GROUP INC.

QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2026

### TABLE OF CONTENTS

PART I. FINANCIAL INFORMATION Page

Item 1. [Financial Statements](#id0f05320f668424ca2dbe9c8bbfe3692_13)

[Consolidated Balance Sheets -](#id0f05320f668424ca2dbe9c8bbfe3692_16)[June](#id0f05320f668424ca2dbe9c8bbfe3692_16)[3](#id0f05320f668424ca2dbe9c8bbfe3692_16)[0](#id0f05320f668424ca2dbe9c8bbfe3692_16)[, 202](#id0f05320f668424ca2dbe9c8bbfe3692_16)[6](#id0f05320f668424ca2dbe9c8bbfe3692_16)[and December 31, 2025](#id0f05320f668424ca2dbe9c8bbfe3692_16) [1](#id0f05320f668424ca2dbe9c8bbfe3692_16)

[Consolidated Statements of Income - Three](#id0f05320f668424ca2dbe9c8bbfe3692_19)[and Si](#id0f05320f668424ca2dbe9c8bbfe3692_19)[x](#id0f05320f668424ca2dbe9c8bbfe3692_19)[Months Ended](#id0f05320f668424ca2dbe9c8bbfe3692_19)[June](#id0f05320f668424ca2dbe9c8bbfe3692_19)[3](#id0f05320f668424ca2dbe9c8bbfe3692_19)[0](#id0f05320f668424ca2dbe9c8bbfe3692_19)[, 2026 and 2025](#id0f05320f668424ca2dbe9c8bbfe3692_19) [2](#id0f05320f668424ca2dbe9c8bbfe3692_19)

[Consolidated Statements of Comprehensive Income - Three](#id0f05320f668424ca2dbe9c8bbfe3692_22)[and Six](#id0f05320f668424ca2dbe9c8bbfe3692_22)[Months Ended](#id0f05320f668424ca2dbe9c8bbfe3692_22)[June 30](#id0f05320f668424ca2dbe9c8bbfe3692_22)[, 2026 and 2025](#id0f05320f668424ca2dbe9c8bbfe3692_22) [3](#id0f05320f668424ca2dbe9c8bbfe3692_22)

[Consolidated Statements of Equity - Three](#id0f05320f668424ca2dbe9c8bbfe3692_25)[and Six](#id0f05320f668424ca2dbe9c8bbfe3692_25)[Months Ended](#id0f05320f668424ca2dbe9c8bbfe3692_25)[June 30](#id0f05320f668424ca2dbe9c8bbfe3692_25)[, 2026 and 2025](#id0f05320f668424ca2dbe9c8bbfe3692_25) [4](#id0f05320f668424ca2dbe9c8bbfe3692_25)

[Consolidated Statements of Cash Flows -](#id0f05320f668424ca2dbe9c8bbfe3692_28)[#id0f05320f668424ca2dbe9c8bbfe3692_28](#id0f05320f668424ca2dbe9c8bbfe3692_28)[Six](#id0f05320f668424ca2dbe9c8bbfe3692_28)[Months Ended](#id0f05320f668424ca2dbe9c8bbfe3692_28)[June 30](#id0f05320f668424ca2dbe9c8bbfe3692_28)[, 2026 and 2025](#id0f05320f668424ca2dbe9c8bbfe3692_28) [5](#id0f05320f668424ca2dbe9c8bbfe3692_28)

[Notes to Consolidated Financial Statements](#id0f05320f668424ca2dbe9c8bbfe3692_31) [6](#id0f05320f668424ca2dbe9c8bbfe3692_34)

Item 2. [Management’s Discussion and Analysis of Financial Condition and Results of Operations](#id0f05320f668424ca2dbe9c8bbfe3692_112) [17](#id0f05320f668424ca2dbe9c8bbfe3692_112)

[Forward-Looking Statements](#id0f05320f668424ca2dbe9c8bbfe3692_115) [17](#id0f05320f668424ca2dbe9c8bbfe3692_115)

[Executive Summary](#id0f05320f668424ca2dbe9c8bbfe3692_118) [18](#id0f05320f668424ca2dbe9c8bbfe3692_118)

[Consolidated Results of Operations](#id0f05320f668424ca2dbe9c8bbfe3692_127) [22](#id0f05320f668424ca2dbe9c8bbfe3692_127)

[Non-GAAP Financial Measures](#id0f05320f668424ca2dbe9c8bbfe3692_184) [29](#id0f05320f668424ca2dbe9c8bbfe3692_184)

[Liquidity and Capital Resources](#id0f05320f668424ca2dbe9c8bbfe3692_193) [30](#id0f05320f668424ca2dbe9c8bbfe3692_193)

[Critical Accounting Estimates](#id0f05320f668424ca2dbe9c8bbfe3692_211) [33](#id0f05320f668424ca2dbe9c8bbfe3692_211)

Item 3. [Quantitative and Qualitative Disclosures About Market Risk](#id0f05320f668424ca2dbe9c8bbfe3692_226) [35](#id0f05320f668424ca2dbe9c8bbfe3692_226)

Item 4. [Controls and Procedures](#id0f05320f668424ca2dbe9c8bbfe3692_229) [35](#id0f05320f668424ca2dbe9c8bbfe3692_229)

PART II. OTHER INFORMATION

Item 1. [Legal Proceedings](#id0f05320f668424ca2dbe9c8bbfe3692_235) [35](#id0f05320f668424ca2dbe9c8bbfe3692_235)

Item 1A. [Risk Factors](#id0f05320f668424ca2dbe9c8bbfe3692_238) [35](#id0f05320f668424ca2dbe9c8bbfe3692_238)

Item 2. [Unregistered Sales of Equity Securities and Use of Proceeds](#id0f05320f668424ca2dbe9c8bbfe3692_241) [36](#id0f05320f668424ca2dbe9c8bbfe3692_241)

Item 5. [Other Information](#id0f05320f668424ca2dbe9c8bbfe3692_244) [36](#id0f05320f668424ca2dbe9c8bbfe3692_244)

Item 6. [Exhibits](#id0f05320f668424ca2dbe9c8bbfe3692_247) [36](#id0f05320f668424ca2dbe9c8bbfe3692_247)

Signatures [36](#id0f05320f668424ca2dbe9c8bbfe3692_250)

i

PART I. FINANCIAL INFORMATION

## Item 1. Financial Statements

**OMNICOM GROUP INC. AND SUBSIDIARIES**

### CONSOLIDATED BALANCE SHEETS

_(In millions)_

| Line item | June 30, 2026 | December 31, 2025 |
| --- | --- | --- |
|  | (Unaudited) |  |
| ASSETS: |  |  |
| Current Assets: |  |  |
| Cash and cash equivalents | $3,336.2 | $6,881.1 |
| Accounts receivable, net of allowance for doubtful accounts of $10.6 and $11.9 | 13,462.8 | 14,398.0 |
| Work in process | 3,659.6 | 3,408.9 |
| Assets held for sale | 808.1 | 1,012.2 |
| Other current assets | 1,950.7 | 1,765.2 |
| Total Current Assets | 23,217.4 | 27,465.4 |
| Property and Equipment at cost, less accumulated depreciation of $1,253.7 and $1,386.8 | 995.8 | 1,010.3 |
| Operating Lease Right-Of-Use Assets | 1,263.5 | 1,379.8 |
| Equity Method Investments | 51.0 | 65.9 |
| Goodwill | 18,740.7 | 18,641.4 |
| Intangible Assets, net of accumulated amortization of $1,101.4 and $903.2 | 4,834.5 | 5,101.0 |
| Other Assets | 800.1 | 751.5 |
| TOTAL ASSETS | $49,903.0 | $54,415.3 |
| LIABILITIES AND EQUITY: |  |  |
| Current Liabilities: |  |  |
| Accounts payable | $18,148.0 | $20,659.5 |
| Customer advances | 2,134.4 | 1,727.6 |
| Current portion of debt | — | 1,399.5 |
| Short-term debt | 48.8 | 62.0 |
| Taxes payable | 89.1 | 264.9 |
| Liabilities held for sale | 1,052.4 | 1,261.0 |
| Other current liabilities | 3,662.6 | 4,163.7 |
| Total Current Liabilities | 25,135.3 | 29,538.2 |
| Long-Term Liabilities | 1,239.0 | 1,099.5 |
| Long-Term Liability - Operating Leases | 1,409.2 | 1,617.0 |
| Long-Term Debt | 9,953.2 | 7,655.0 |
| Deferred Tax Liabilities | 1,575.3 | 1,449.4 |
| Commitments and Contingent Liabilities (Note 13) |  |  |
| Temporary Equity - Redeemable Noncontrolling Interests | 318.8 | 363.2 |
| Equity: |  |  |
| Shareholders’ Equity: |  |  |
| Preferred stock | — | — |
| Common stock | 63.2 | 63.2 |
| Additional paid-in capital | 9,591.4 | 9,424.4 |
| Retained earnings | 11,320.8 | 10,782.4 |
| Accumulated other comprehensive income (loss) | (1,297.6) | (1,265.8) |
| Treasury stock, at cost | (10,016.0) | (6,958.4) |
| Total Shareholders’ Equity | 9,661.8 | 12,045.8 |
| Noncontrolling interests | 610.4 | 647.2 |
| Total Equity | 10,272.2 | 12,693.0 |
| TOTAL LIABILITIES AND EQUITY | $49,903.0 | $54,415.3 |

The accompanying notes to the consolidated financial statements are an integral part of these statements.

1

**OMNICOM GROUP INC. AND SUBSIDIARIES**

### CONSOLIDATED STATEMENTS OF INCOME

_(Unaudited) · (In millions, except per share amounts)_

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Revenue | $6,562.5 | $4,015.6 | $12,805.4 | $7,706.0 |
| Operating Expenses: |  |  |  |  |
| Salary and service costs | 4,713.3 | 2,932.6 | 9,352.9 | 5,678.9 |
| Occupancy and other costs | 504.4 | 325.9 | 1,031.7 | 640.5 |
| Severance and repositioning costs | 47.0 | 88.8 | 51.1 | 88.8 |
| Loss on assets held for sale and dispositions | — | — | 34.3 | — |
| Cost of services | 5,264.7 | 3,347.3 | 10,470.0 | 6,408.2 |
| Selling, general and administrative expenses | 209.0 | 170.4 | 433.5 | 288.3 |
| Depreciation and amortization | 166.3 | 58.7 | 333.2 | 117.7 |
| Total Operating Expenses | 5,640.0 | 3,576.4 | 11,236.7 | 6,814.2 |
| Operating Income | 922.5 | 439.2 | 1,568.7 | 891.8 |
| Interest Expense | 123.2 | 62.6 | 242.2 | 121.7 |
| Interest Income | 29.9 | 21.9 | 76.9 | 51.6 |
| Income Before Income Taxes and Income (Loss) From Equity Method Investments | 829.2 | 398.5 | 1,403.4 | 821.7 |
| Income Tax Expense | 224.8 | 120.5 | 379.4 | 241.2 |
| Income (Loss) From Equity Method Investments | 1.1 | (0.2) | 0.2 | 0.7 |
| Net Income | 605.5 | 277.8 | 1,024.2 | 581.2 |
| Net Income Attributed To Noncontrolling Interests | 20.7 | 20.2 | 34.2 | 35.9 |
| Net Income - Omnicom Group Inc. | $584.8 | $257.6 | $990.0 | $545.3 |
| Net Income Per Share - Omnicom Group Inc.: |  |  |  |  |
| Basic | $2.09 | $1.32 | $3.43 | $2.78 |
| Diluted | $2.08 | $1.31 | $3.41 | $2.77 |
| Weighted Average Shares: |  |  |  |  |
| Basic | 279.9 | 194.9 | 289.0 | 195.8 |
| Diluted | 281.0 | 196.0 | 290.2 | 197.1 |

The accompanying notes to the consolidated financial statements are an integral part of these statements.

2

**OMNICOM GROUP INC. AND SUBSIDIARIES**

### CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

_(Unaudited) · (In millions)_

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Net Income | $605.5 | $277.8 | $1,024.2 | $581.2 |
| Other Comprehensive Income (Loss): |  |  |  |  |
| Cash flow hedge: |  |  |  |  |
| Amortization of loss included in interest expense | — | 1.2 | 1.3 | 2.7 |
| Income tax effect | — | (0.4) | (0.4) | (0.8) |
| Cash flow hedge, net of tax | — | 0.8 | 0.9 | 1.9 |
| Pension and other postemployment benefits: |  |  |  |  |
| Amortization of prior service cost | 1.8 | 1.7 | 3.6 | 3.4 |
| Amortization of actuarial losses | (0.5) | — | (1.1) | 0.5 |
| Income tax effect | (4.7) | (1.2) | (2.4) | (3.0) |
| Pension plans and other postemployment benefits, net of tax | (3.4) | 0.5 | 0.1 | 0.9 |
| Foreign currency translation adjustment | 19.2 | 132.2 | (36.8) | 215.8 |
| Other Comprehensive Income (Loss) | 15.8 | 133.5 | (35.8) | 218.6 |
| Comprehensive Income | 621.3 | 411.3 | 988.4 | 799.8 |
| Comprehensive Income Attributed To Noncontrolling Interests | 20.1 | 28.8 | 30.2 | 49.5 |
| Comprehensive Income - Omnicom Group Inc. | $601.2 | $382.5 | $958.2 | $750.3 |

The accompanying notes to the consolidated financial statements are an integral part of these statements.

3

**OMNICOM GROUP INC. AND SUBSIDIARIES**

### CONSOLIDATED STATEMENTS OF EQUITY

_(Unaudited) · (In millions, except per share amounts)_

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Common Stock, shares | 421.6 | 297.2 | 421.6 | 297.2 |
| Common Stock, par value | $63.2 | $44.6 | $63.2 | $44.6 |
| Additional Paid-In Capital: |  |  |  |  |
| Beginning Balance | 8,979.3 | 495.4 | 9,424.4 | 472.1 |
| Net change in noncontrolling interests | (3.6) | 1.5 | 4.6 | 0.1 |
| Change in temporary equity | 22.1 | (11.0) | 40.1 | (11.1) |
| Share-based compensation | 25.8 | 23.4 | 52.9 | 44.2 |
| Common stock repurchased | 574.0 | — | 74.0 | — |
| Stock issued, share-based compensation | (6.2) | (27.5) | (4.6) | (23.5) |
| Ending Balance | 9,591.4 | 481.8 | 9,591.4 | 481.8 |
| Retained Earnings: |  |  |  |  |
| Beginning Balance | 10,959.3 | 11,650.4 | 10,782.4 | 11,500.5 |
| Net income | 584.8 | 257.6 | 990.0 | 545.3 |
| Common stock dividends declared | (223.3) | (138.5) | (451.6) | (276.3) |
| Ending Balance | 11,320.8 | 11,769.5 | 11,320.8 | 11,769.5 |
| Accumulated Other Comprehensive Income (Loss): |  |  |  |  |
| Beginning Balance | (1,313.9) | (1,395.8) | (1,265.8) | (1,475.9) |
| Other comprehensive income (loss) | 16.3 | 124.9 | (31.8) | 205.0 |
| Ending Balance | (1,297.6) | (1,270.9) | (1,297.6) | (1,270.9) |
| Treasury Stock: |  |  |  |  |
| Beginning Balance | (9,250.8) | (6,421.4) | (6,958.4) | (6,347.8) |
| Stock issued, share-based compensation | 20.9 | 26.4 | 33.9 | 34.3 |
| Common stock repurchased | (786.1) | (143.2) | (3,091.5) | (224.7) |
| Ending Balance | (10,016.0) | (6,538.2) | (10,016.0) | (6,538.2) |
| Shareholders' Equity | 9,661.8 | 4,486.8 | 9,661.8 | 4,486.8 |
| Noncontrolling Interests: |  |  |  |  |
| Beginning Balance | 635.0 | 560.5 | 647.2 | 552.4 |
| Net income | 20.7 | 20.2 | 34.2 | 35.9 |
| Other comprehensive income (loss) | (0.6) | 8.6 | (4.0) | 13.6 |
| Dividends to noncontrolling interests | (21.4) | (21.3) | (33.5) | (34.3) |
| Net change in noncontrolling interests | (23.3) | (16.0) | (33.5) | (15.6) |
| Ending Balance | 610.4 | 552.0 | 610.4 | 552.0 |
| Total Equity | $10,272.2 | $5,038.8 | $10,272.2 | $5,038.8 |
| Dividends Declared Per Common Share | $0.80 | $0.70 | $1.60 | $1.40 |

The accompanying notes to the consolidated financial statements are an integral part of these statements.

4

**OMNICOM GROUP INC. AND SUBSIDIARIES**

### CONSOLIDATED STATEMENTS OF CASH FLOWS

_(Unaudited) · (In millions)_

| Line item | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- |
| Cash Flows From Operating Activities: |  |  |
| Net income | $1,024.2 | $581.2 |
| Adjustments to reconcile net income to net cash used in operating activities: |  |  |
| Depreciation and amortization of right-of-use assets | 98.1 | 68.1 |
| Amortization of intangible assets | 235.1 | 49.6 |
| Share-based compensation | 52.9 | 44.2 |
| Severance and repositioning costs | 51.1 | 88.8 |
| Loss on assets held for sale and dispositions | 34.3 | — |
| Other, net | 6.3 | 3.1 |
| Use of operating capital | (2,434.4) | (1,411.7) |
| Net Cash Provided by (Used In) Operating Activities | (932.4) | (576.7) |
| Cash Flows From Investing Activities: |  |  |
| Capital expenditures | (115.1) | (71.6) |
| Acquisition of businesses and interests in affiliates, net of cash acquired | (7.1) | (0.8) |
| Proceeds from assets held for sale | 168.2 | — |
| Other, net | — | 51.8 |
| Net Cash Provided By (Used in) Investing Activities | 46.0 | (20.6) |
| Cash Flows From Financing Activities: |  |  |
| Proceeds from borrowings | 2,384.9 | — |
| Repayment of debt | (1,400.0) | — |
| Change in short-term debt | (0.5) | (0.6) |
| Dividends paid to common shareholders | (481.5) | (277.4) |
| Repurchases of common stock | (2,988.2) | (223.0) |
| Proceeds from stock plans | 25.9 | 12.9 |
| Acquisition of additional noncontrolling interests | (35.0) | (5.9) |
| Dividends paid to noncontrolling interest shareholders | (33.5) | (34.3) |
| Payment of contingent purchase price obligations | (3.3) | (41.5) |
| Other, net | (37.8) | (33.1) |
| Net Cash Provided by (Used In) Financing Activities | (2,569.0) | (602.9) |
| Effect of foreign exchange rate changes on cash and cash equivalents | (89.5) | 161.2 |
| Net Increase (Decrease) in Cash and Cash Equivalents | (3,544.9) | (1,039.0) |
| Cash and Cash Equivalents at the Beginning of Period | 6,881.1 | 4,339.4 |
| Cash and Cash Equivalents at the End of Period | $3,336.2 | $3,300.4 |

The accompanying notes to the consolidated financial statements are an integral part of these statements.

5

### NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

### 1. Presentation of Financial Statements

The terms “Omnicom”, “the Company”, “we”, “our” and “us” each refer to Omnicom Group Inc. and its subsidiaries, unless the context indicates otherwise. The accompanying unaudited consolidated financial statements were prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP" or "GAAP"), for interim financial information and Article 10 of Regulation S-X of the Securities and Exchange Commission, ("SEC"). Accordingly, certain information and footnote disclosures have been condensed or omitted. All intercompany balances and transactions have been eliminated. The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the unaudited consolidated financial statements and accompanying notes. Actual results could differ from those estimates and assumptions. Unless otherwise noted, dollars in tables are in millions, except per share amounts.

In our opinion, the accompanying unaudited consolidated financial statements reflect all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation, in all material respects, of the information contained herein. These unaudited consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2025 (the "2025 10-K"). Results for the interim periods are not necessarily indicative of results that may be expected for the year.

#### Merger with IPG

On November 26, 2025 (the “Closing Date”), Omnicom completed its merger (the "Merger") with The Interpublic Group of Companies, Inc. ("IPG"). Omnicom is the acquirer of IPG under U.S. GAAP and as a result, the consolidated financial statements of Omnicom for periods prior to the Closing Date do not include the results of operations, financial position, or cash flows of IPG. The results of operations of IPG are included in Omnicom’s consolidated financial statements only from the Closing Date forward. Accordingly, Omnicom’s results of operations, financial condition and cash flows are not comparable to historical periods due to the inclusion of IPG’s results from the Closing Date. See Note 5 to the consolidated financial statements for more information related to the Merger.

For the three and six months ended June 30, 2026, we recorded $40.1 million and $99.5 million, respectively, of integration and acquisition related costs related to the Merger in selling, general and administrative expenses.

During the three and six months ended June 30, 2025, we recorded $66.0 million and $99.8 million, respectively, of acquisition related costs related to the Merger in selling, general and administrative expenses. The results of IPG are not included in our 2025 results of operations.

#### Risks and Uncertainties

Global economic disruptions, including geopolitical events, international hostilities, acts of terrorism, public health crises, inflation or stagflation, tariffs and other trade barriers, central bank interest rate policies in our major markets, and labor or supply chain challenges, could contribute to economic uncertainty and volatility. The impact of these conditions on our business may vary by geographic market and service discipline. We monitor macroeconomic conditions, client revenue levels, and other relevant factors and may take actions to align our cost structure with changes in client demand and to manage working capital. However, there can be no assurance that such actions will be sufficient to mitigate the effects of adverse economic conditions, reductions in client spending, changes in client creditworthiness, or other developments.

### 2. Revenue

#### Nature of our services

We provide data-driven, creative marketing and sales solutions through client-centric networks organized to meet specific client objectives. On a global, pan-regional, and local basis, our agencies provide a comprehensive range of services across our fundamental disciplines. Beginning in 2026, we realigned our disciplines as follows and as described below: Integrated Media, Advertising, Health, Public Relations, and Experiential & Other. The classification of certain services and prior period amounts have been reclassified to conform to the current period presentation.

Integrated Media includes strategic media planning and buying, performance media and audience-based solutions, as well as digital commerce and data and identity solutions. It also includes proprietary data, analytics, and precision marketing capabilities and automated content delivery solutions. Advertising includes creative, brand development, and integrated advertising services across digital and traditional channels, supporting clients' brand strategy and communications needs. Health includes specialized medical communications, market access strategy and other services to global health and pharmaceutical companies. Public Relations services include corporate communications, crisis management, public affairs, and media relations services. Experiential & Other includes experiential design and execution, live and digital events, and entertainment and sports marketing, as well as consulting, branding, and design services. It also includes field marketing, merchandising, custom communications and training, and other specialized marketing and support services.

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Revenue by discipline:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Integrated Media | $3,259.4 | $1,999.1 | $6,237.8 | $3,804.4 |
| Advertising | 1,079.1 | 711.9 | 2,139.3 | 1,386.5 |
| Public Relations | 708.9 | 370.0 | 1,405.5 | 729.1 |
| Health | 586.0 | 325.9 | 1,171.7 | 624.9 |
| Experiential & Other | 929.1 | 608.7 | 1,851.1 | 1,161.1 |
| Revenue1 | $6,562.5 | $4,015.6 | $12,805.4 | $7,706.0 |

1) Revenue for the three and six months ended June 30, 2026 includes amounts attributable to disposals or entities classified as held for sale, consisting of $567.5 million and $1.2 billion, respectively.

#### Economic factors affecting our revenue

Global economic conditions and disruptions directly impact our revenue. Adverse economic conditions and disruptions pose a risk that our clients may reduce, postpone, or cancel spending for our services, which would impact our revenue.

Revenue by geographic market:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Americas: |  |  |  |  |
| North America | $3,990.8 | $2,209.7 | $7,875.9 | $4,321.2 |
| Latin America | 248.5 | 114.6 | 444.6 | 211.0 |
| EMEA: |  |  |  |  |
| Europe | 1,587.6 | 1,166.4 | 3,026.6 | 2,161.4 |
| Middle East and Africa | 141.7 | 66.1 | 285.9 | 136.9 |
| Asia-Pacific | 593.9 | 458.8 | 1,172.4 | 875.5 |
| Revenue1 | $6,562.5 | $4,015.6 | $12,805.4 | $7,706.0 |

1) Revenue for the three and six months ended June 30, 2026 includes amounts attributable to disposals or entities classified as held for sale, consisting of $567.5 million and $1.2 billion, respectively.

The Americas is comprised of North America, which includes the United States, Canada and Puerto Rico, and Latin America, which includes South America and Mexico. EMEA is comprised of Europe, the Middle East and Africa. Asia-Pacific includes Australia, Greater China, India, Japan, Korea, New Zealand, Singapore and other Asian countries. Revenue in the United States for the three months ended June 30, 2026 and 2025 was $3.8 billion and $2.1 billion, respectively, and revenue in the United States for the six months ended June 30, 2026 and 2025 was $7.5 billion and $4.1 billion, respectively.

#### Contract balances

Contract balances include work in process and customer advances that primarily consist of advance billings to customers in accordance with the terms of the client contracts, primarily for the reimbursement of third-party costs.

| Line item | June 30, 2026 | December 31, 2025 | June 30, 2025 |
| --- | --- | --- | --- |
| Work in process: |  |  |  |
| Media and production costs | $1,905.9 | $2,200.1 | $889.6 |
| Unbilled fees and costs and contract assets | 1,753.7 | 1,208.8 | 1,106.3 |
| Work in process | $3,659.6 | $3,408.9 | $1,995.9 |
| Customer advances | $2,134.4 | $1,727.6 | $1,348.2 |

There were no impairment charges recorded in work in process in the six months ended June 30, 2026 and 2025.

The majority of our contracts are for periods of one year or less, with the exception of our data management contracts. For those contracts with a term of more than one year, we had approximately $455.7 million of unsatisfied performance obligations as of June 30, 2026, which will be recognized as services are performed over the remaining contractual terms through 2030.

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### 3. Net Income per Share

Basic and diluted net income per share:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Net Income - Omnicom Group Inc. | $584.8 | $257.6 | $990.0 | $545.3 |
| Weighted Average Shares (millions): |  |  |  |  |
| Basic | 279.9 | 194.9 | 289.0 | 195.8 |
| Dilutive stock options and restricted shares | 1.1 | 1.1 | 1.2 | 1.3 |
| Diluted | 281.0 | 196.0 | 290.2 | 197.1 |
| Anti-dilutive stock options and restricted shares (millions) | 6.2 | 6.5 | 6.2 | 5.8 |
| Net Income per Share - Omnicom Group Inc.: |  |  |  |  |
| Basic | $2.09 | $1.32 | $3.43 | $2.78 |
| Diluted | $2.08 | $1.31 | $3.41 | $2.77 |

The number of potential shares of common stock excluded from diluted shares outstanding was 6.2 million and 6.5 million for the three months ended June 30, 2026 and 2025, respectively, and 6.2 million and 5.8 million for the six months ended June 30, 2026 and 2025, respectively, because the effect of including those shares of common stock in the calculation would have been anti-dilutive.

The increase in our weighted average shares in 2026 is a result of the inclusion of outstanding shares issued in connection with the acquisition of IPG, see Note 5 to the consolidated financial statements.

### 4. Goodwill and Intangible Assets

Change in goodwill:

| Line item | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- |
| January 1 | $18,641.4 | $10,677.4 |
| Acquisitions* | 155.1 | 2.4 |
| Noncontrolling interests in acquired businesses | 13.5 | 2.6 |
| Contingent purchase price obligations of acquired businesses | 13.5 | 2.5 |
| Dispositions | (21.6) | (20.9) |
| Foreign currency translation | (61.2) | 337.8 |
| June 30 | $18,740.7 | $11,001.8 |

*The increase in goodwill in the six months ended June 30, 2026 is primarily attributable to adjustments to the preliminary purchase price accounting for the IPG acquisition in November 2025 (see Note 5 to the consolidated financial statements). There were no goodwill impairment charges recorded in the six months ended June 30, 2026 and 2025, and there are no accumulated goodwill impairment charges.

We completed our annual goodwill impairment test as of May 1, 2026. The market assumptions used in our assessment reflected the current economic environment (see Note 1 to the consolidated financial statements). Based on the results of our impairment test, we concluded that our goodwill was not impaired at May 1, 2026.

Intangible assets:

| Line item | June 30, 2026 / Gross Carrying Value | June 30, 2026 / Accumulated Amortization | June 30, 2026 / Net Carrying Value | December 31, 2025 / Gross Carrying Value | December 31, 2025 / Accumulated Amortization | December 31, 2025 / Net Carrying Value |
| --- | --- | --- | --- | --- | --- | --- |
| Trade Names | $922.5 | $(115.2) | $807.3 | $929.9 | $(76.5) | $853.4 |
| Customer Relationships | 4,366.8 | (643.2) | 3,723.6 | 4,389.5 | (504.1) | 3,885.4 |
| Technology and Other | 357.6 | (112.2) | 245.4 | 409.2 | (79.6) | 329.6 |
| Acquired intangible assets and internally developed strategic platform assets | $5,646.9 | $(870.6) | $4,776.3 | $5,728.6 | $(660.2) | $5,068.4 |
| Other purchased and internally developed software | 289.0 | (230.8) | 58.2 | 275.6 | (243.0) | 32.6 |
| Intangible Assets | $5,935.9 | $(1,101.4) | $4,834.5 | $6,004.2 | $(903.2) | $5,101.0 |

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Amortization of intangible assets:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Acquired intangible assets and internally developed strategic platform assets | $110.7 | $19.8 | $221.6 | $41.6 |
| Other purchased and internally developed software | 7.0 | 4.0 | 13.5 | 8.0 |
| Amortization Expense | $117.7 | $23.8 | $235.1 | $49.6 |

### 5. Business Combinations

On November 26, 2025, we completed the Merger (see Note 1 to the consolidated financial statements). The acquisition combines complementary capabilities and service offerings and is expected to expand client opportunities and support long-term growth.

#### Purchase Consideration

Pursuant to the Merger Agreement, the 361,498,876 shares of IPG common stock (the “IPG common stock”) (par value $0.10 per share) that were issued and outstanding immediately prior to the Merger were converted into 124,352,188 shares of Omnicom common stock (par value $0.15 per share) and cash in lieu of fractional shares, based on an exchange ratio (the “Exchange Ratio”) of 0.344 shares of Omnicom common stock for each share of IPG common stock. Following the closing of the Merger, legacy Omnicom shareholders owned approximately 60.6% of the combined company, and legacy IPG shareholders owned approximately 39.4%, on a fully diluted basis.

The total consideration paid at closing was $8,893.5 million, consisting primarily of equity consideration of $8,891.2 million, excluding debt assumed in connection with Omnicom's offer to exchange all outstanding notes of certain series issued by IPG. The following table summarizes the purchase consideration:

|  |  |
| --- | --- |
| Fair value of shares issued to IPG shareholders1 | $8,891.2 |
| Cash paid for fractional shares | $0.3 |
| Fair value of equity awards2 | $2.0 |
| Total Consideration | $8,893.5 |

#### 1) The fair value of shares issued reflects the number of IPG shares outstanding at the Closing Date multiplied by the Exchange Ratio and Omnicom’s closing share price on the Closing Date.

#### 2) Represents the fair value of director awards that were settled as part of the closing consideration through the issuance of shares and assumed stock option awards.

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#### Preliminary Purchase Price Allocation

The following table summarizes the preliminary fair values of the tangible and identifiable assets acquired and liabilities assumed as of the Closing Date:

|  |  |  |  |
| --- | --- | --- | --- |
| Cash and Cash equivalents | $1,080.6 | Accounts payable | $7,065.4 |
| Accounts receivable | 5,753.1 | Customer advances | 715.8 |
| Work in process | 2,227.6 | Short-term debt | 42.4 |
| Assets held for sale | 266.1 | Liabilities held for sale | 106.5 |
| Other current Assets | 566.8 | Other current liabilities | 1,696.7 |
| Property and equipment | 251.6 | Long-term liabilities | 432.7 |
| Operating lease right-of-use assets | 598.9 | Long-term liability - operating leases | 876.4 |
| Equity Method Investments | 32.1 | Long-term debt | 2,764.9 |
| Intangible assets | 4,578.8 | Deferred tax liabilities, net | 1,093.6 |
| Other Assets | 705.5 | Non-controlling interests | 211.7 |
| Total Assets | $16,061.1 | Redeemable non-controlling interest | 8.4 |
|  |  | Total Liabilities and Non-controlling interest | $15,014.5 |
|  |  | Fair value of net assets acquired | $1,046.6 |
|  |  | Goodwill | 7,846.9 |
|  |  | Total Consideration | $8,893.5 |

The purchase accounting process has not been completed as of June 30, 2026, including the finalization of the purchase price allocation. The Company has not yet finalized the valuation of certain assets acquired and liabilities assumed, including identifiable intangible assets. The preliminary fair values of identifiable assets as of June 30, 2026 include Trade Names of $792.0 million, Customer Relationships of $3,616.0 million, and Technology and Other of $170.9 million. During the six months ended June 30, 2026, the adjustments to goodwill related primarily to the updates of the fair value of acquired software and deferred taxes. The purchase price allocation may be adjusted during the measurement period, which will not exceed one year from the Closing Date.

#### Integration and Acquisition-Related Costs

During the three and six months ended June 30, 2026, the Company incurred approximately $40.1 million and $99.5 million, respectively, of integration and acquisition related costs associated primarily with the acquisition of IPG. During the three and six months ended June 30, 2025, the Company incurred approximately $66.0 million and $99.8 million, respectively, of acquisition related costs associated primarily with the acquisition of IPG. These costs consist mainly of third-party professional fees and were recorded within selling, general and administrative expenses in the consolidated statements of income. The Company may incur additional integration and acquisition-related costs in the future related to the acquisition of IPG.

### 6. Debt

#### Credit Facility

On November 26, 2025, the Company entered into a Fourth Amended and Restated Five Year Credit Agreement (the “Credit Agreement Amendment”), which amended and restated the Company’s Third Amended and Restated Five Year Credit Agreement, dated as of June 2, 2023. The Credit Agreement Amendment, among other things, (i) increased the unsecured multi-currency revolving credit facility (the “Credit Facility”) amount from $2.5 billion to $3.5 billion, (ii) reduced the facility fee and applicable margin, (iii) extended the termination date (with respect to the available commitments of the extending lenders) from June 2, 2028 to November 26, 2030 and (iv) designated Omnicom as sole borrower under the Credit Facility.

We can issue up to $3.0 billion of U.S. Dollar denominated commercial paper under a U.S. commercial paper program, and issue up to the equivalent of $500 million in British Pounds, Euro, or U.S. Dollars under a Euro commercial paper program. In addition, certain of our subsidiaries have uncommitted credit lines that are guaranteed by Omnicom, aggregating $919.1 million. All of these facilities provide additional liquidity sources for operating capital and general corporate purposes. During the three months ended June 30, 2026, we issued commercial paper, and the average and maximum amounts outstanding during the quarter were $34.0 million and $230.0 million, respectively. During the six months ended June 30, 2026, we issued commercial paper, and the average and maximum amounts outstanding were $147.3 million and $632.6 million, respectively. There were no issuances of commercial paper for the three and six months ended June 30, 2025. At both June 30, 2026 and 2025, there were no outstanding commercial paper issuances.

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The Credit Facility has a financial covenant that requires us to maintain a Leverage Ratio (as defined in the Credit Facility) of consolidated indebtedness to consolidated EBITDA (earnings before interest, taxes, depreciation, amortization and non-cash charges) of no more than 3.5 times for the most recently ended 12-month period. At June 30, 2026, we were in compliance with this covenant as our Leverage Ratio, computed in accordance with the terms of the facility, was 2.4 times. The Credit Facility does not limit our ability to declare or pay dividends or repurchase our common stock.

#### Short-Term Debt

Short-term debt of $48.8 million and $62.0 million at June 30, 2026 and December 31, 2025, respectively, represented bank overdrafts and short-term borrowings primarily of our international subsidiaries.

#### Long-Term Debt

Long-term debt:

| Line item | June 30, 2026 | December 31, 2025 |
| --- | --- | --- |
| 3.600% Senior Notes due 2026 | — | $1,400.0 |
| €500 million 0.800% Senior Notes due 2027 | 569.2 | 588.7 |
| 4.650% Senior Notes (Exchange/IPG) due 2028 | 500.0 | 500.0 |
| 4.200% Senior Notes due 2029 | 400.0 | — |
| 2.450% Senior Notes due 2030 | 600.0 | 600.0 |
| 4.200% Senior Notes due 2030 | 600.0 | 600.0 |
| 4.750% Senior Notes (Exchange/IPG) due 2030 | 650.0 | 650.0 |
| €500 million 1.400% Senior Notes due 2031 | 569.2 | 588.7 |
| 2.400% Senior Notes (Exchange/IPG) due 2031 | 500.0 | 500.0 |
| 2.600% Senior Notes due 2031 | 800.0 | 800.0 |
| €600 million 3.700% Senior Notes due 2032 | 683.0 | 706.4 |
| £325 million 2.250% Senior Notes due 2033 | 429.0 | 439.1 |
| 5.000% Senior Notes due 2033 | 700.0 | — |
| 5.375% Senior Notes (Exchange/IPG) due 2033 | 300.0 | 300.0 |
| €600 million 3.850% Senior Notes due 2034 | 683.0 | — |
| 5.300% Senior Notes due 2034 | 600.0 | 600.0 |
| 5.300% Senior Notes due 2036 | 600.0 | — |
| 3.375% Senior Notes (Exchange/IPG) due 2041 | 500.0 | 500.0 |
| 5.400% Senior Notes (Exchange/IPG) due 2048 | 500.0 | 500.0 |
| Long-Term Debt, Gross | 10,183.4 | 9,272.9 |
| Unamortized discount | (188.8) | (192.3) |
| Unamortized debt issuance costs | (41.4) | (25.9) |
| Unamortized deferred loss from settlement of interest rate swap | — | (0.2) |
| Long-Term Debt, including current portion | 9,953.2 | 9,054.5 |
| Current portion | — | (1,399.5) |
| Long-Term Debt | $9,953.2 | $7,655.0 |

On March 2, 2026, Omnicom closed its public offering of $400 million aggregate principal amount of 4.200% Senior Notes due 2029, $700 million aggregate principal amount of 5.000% Senior Notes due 2033 and $600 million aggregate principal amount of 5.300% Senior Notes due 2036. In addition, on March 2, 2026, Omnicom Finance Holdings plc, a U.K.-based wholly-owned subsidiary of Omnicom ("OFH"), closed its public offering of €600 million aggregate principal amount of 3.850% Senior Notes due 2034, which are fully and unconditionally guaranteed by Omnicom. Omnicom used a portion of the net proceeds of these offerings to repay its $1.4 billion 3.600% Senior Notes due 2026, which were fully redeemed at par on March 13, 2026. Omnicom intends to use the remaining proceeds for general corporate purposes.

Omnicom has fully and unconditionally guaranteed the obligations of OFH with respect to the €500 million 0.800% Senior Notes due 2027, the €500 million 1.400% Senior Notes due 2031, the €600 million 3.700% Senior Notes due 2032, and the €600 million 3.850% Senior Notes due 2034 (collectively, the "Euro Notes"). OFH’s assets consist of its investments in several wholly owned finance companies that function as treasury centers, providing funding for various operating companies in Europe, Australia, and other countries in the Asia-Pacific region. The finance companies’ assets consist of cash and cash equivalents and intercompany loans that they make or have made to the operating companies in their respective regions and the related interest receivable. There are no restrictions on the ability of Omnicom or OFH to obtain funds from their subsidiaries through dividends,

11

loans, or advances. The Euro Notes and the related guarantees are senior unsecured obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness of OFH and Omnicom, respectively.

Omnicom has fully and unconditionally guaranteed the obligations of Omnicom Capital Holdings plc ("OCH") a U.K.-based wholly owned subsidiary of Omnicom, with respect to the £325 million aggregate principal amount of 2.250% Senior Notes due 2033 (the "Sterling Notes"). OCH’s assets consist of its investments in several wholly owned finance companies that function as treasury centers, providing funding for various operating companies in EMEA, Australia, and other countries in the Asia-Pacific region. The finance companies’ assets consist of cash and cash equivalents and intercompany loans that they make or have made to the operating companies in their respective regions and the related interest receivable. There are no restrictions on the ability of Omnicom or OCH to obtain funds from their subsidiaries through dividends, loans, or advances. The Sterling Notes and the related guarantee are senior unsecured obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness of OCH and Omnicom, respectively.

### 7. Segment Reporting

Our branded agency networks operate in the advertising, marketing and corporate communications services industry, and are organized into agency networks, virtual client networks, regional reporting units and operating groups or connected capabilities. Our networks, virtual client networks and agencies increasingly share clients and provide clients with integrated services. The main economic components of each agency are employee compensation and related costs, direct service costs and occupancy and other costs which include rent and occupancy costs, technology costs and overhead expenses. Therefore, given these similarities, we aggregate our four operating segments, which are our global agency networks, into one reporting segment. The Chief Operating Decision Maker, or CODM, reviews segment operating income for each network and allocates resources accordingly. Beginning in December of 2025, we integrated the newly acquired IPG businesses into our existing four networks. The CODM includes Omnicom’s chief executive officer, chief financial officer and chief operating officer.

Segment operating results include allocations of costs, including information technology, and other shared services costs, that are allocated using metrics designed to correlate the allocation with consumption.

Segment revenue, segment operating expenses and segment operating income of our operating segments:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Revenue | $6,562.5 | $4,015.6 | $12,805.4 | $7,706.0 |
| Segment Operating Expenses: |  |  |  |  |
| Salary and service costs: |  |  |  |  |
| Salary and related costs | $2,966.6 | $1,827.8 | $6,028.2 | $3,608.3 |
| Third-party service costs | 1,522.4 | 918.4 | 2,888.1 | 1,715.2 |
| Third-party incidental costs | 224.3 | 186.4 | 436.6 | 355.4 |
| Total salary and service costs | 4,713.3 | 2,932.6 | 9,352.9 | 5,678.9 |
| Occupancy and other costs | 504.4 | 325.9 | 1,031.7 | 640.5 |
| Segment cost of services | 5,217.7 | 3,258.5 | 10,384.6 | 6,319.4 |
| Selling, general and administrative expenses | 168.9 | 104.4 | 334.0 | 188.5 |
| Depreciation and amortization | 166.3 | 58.7 | 333.2 | 117.7 |
| Total segment operating expenses | 5,552.9 | 3,421.6 | 11,051.8 | 6,625.6 |
| Segment Operating Income | $1,009.6 | $594.0 | $1,753.6 | $1,080.4 |

Reconciliation of segment operating income to income before income taxes and income (loss) from equity method investments:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Segment Operating Income | $1,009.6 | $594.0 | $1,753.6 | $1,080.4 |
| Severance and repositioning costs | 47.0 | 88.8 | 51.1 | 88.8 |
| Loss on assets held for sale and dispositions | — | — | 34.3 | — |
| Integration and acquisition related costs | 40.1 | 66.0 | 99.5 | 99.8 |
| Operating Income | 922.5 | 439.2 | 1,568.7 | 891.8 |
| Interest Expense | 123.2 | 62.6 | 242.2 | 121.7 |
| Interest Income | 29.9 | 21.9 | 76.9 | 51.6 |
| Income Before Income Taxes and Income (Loss) From Equity Method Investments | $829.2 | $398.5 | $1,403.4 | $821.7 |

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We reconcile segment operating income to income before income taxes and income (loss) from equity method investments as income tax expense is reviewed at the consolidated level and the segment managers are not held accountable for performance of net income.

The agency networks' regional reporting units comprise three principal regions: the Americas, EMEA and Asia-Pacific. The regional reporting units monitor the performance and are responsible for the agencies in their region. Agencies within the regional reporting units serve similar clients in similar industries and, in many cases, the same clients and have similar economic characteristics.

Revenue and long-lived assets and goodwill by geographic region:

| June 30, 2026 | Americas | EMEA | Asia-Pacific |
| --- | --- | --- | --- |
| Revenue - Three months ended | $4,239.4 | $1,729.3 | $593.9 |
| Revenue - Six months ended | $8,320.5 | $3,312.5 | $1,172.4 |
| Long-lived assets and goodwill | $13,880.5 | $5,774.5 | $1,345.0 |
| June 30, 2025 |  |  |  |
| Revenue - Three months ended | $2,324.3 | $1,232.5 | $458.8 |
| Revenue - Six months ended | $4,532.2 | $2,298.3 | $875.5 |
| Long-lived assets and goodwill | $8,148.0 | $4,054.3 | $723.5 |

### 8. Income Taxes

Our effective tax rate for the six months ended June 30, 2026 was 27.0% compared to 29.4% for the six months ended June 30, 2025. The decrease was primarily due to the non-deductibility of certain integration and acquisition related costs in connection with the Merger that negatively impacted the effective tax rate in 2025. The effective tax rates for 2026 and 2025 reflect the impact of the lower tax benefit associated with severance and repositioning charges and IPG acquisition related costs.

Numerous foreign jurisdictions have enacted legislation to adopt a minimum effective tax rate described in the Global Anti-Base Erosion, or Pillar Two, model rules issued by the Organization for Economic Co-operation and Development ("OECD"). Under such rules, a minimum effective tax rate of 15% applies to multinational companies with consolidated revenue above €750 million.

Under the Pillar Two rules, a company is required to determine a combined effective tax rate for all entities located in a jurisdiction. If the jurisdictional effective tax rate determined under the Pillar Two rules is less than 15%, a top-up tax will be due to bring the jurisdictional effective tax rate up to 15%. We are continuing to monitor Pillar Two legislative developments and the effects of Pillar Two on our business.

On January 5, 2026, the OECD released comprehensive administrative guidance on the “side-by-side system” to streamline Pillar Two’s global minimum tax rules, which would exclude U.S. parented groups from certain Pillar Two provisions in recognition of existing U.S. minimum tax rules. The side-by-side safe harbor election will be effective beginning in 2026, once adopted into domestic legislation, with the transitional safe harbor extended through 2027 to facilitate the implementation of this permanent system. Overall, the rules are not expected to have a material adverse impact on our results of operations, financial position, or cash flows.

On July 4, 2025, the One Big Beautiful Bill Act was signed into law in the U.S., which contains a broad range of tax reform provisions affecting businesses. The legislation does not have a material impact on our financial statements.

At June 30, 2026, our gross unrecognized tax benefits were $442.5 million. Of this amount, approximately $426.5 million would affect our effective tax rate upon resolution of the uncertain tax positions.

### 9. Pension and Other Postemployment Benefits

Pension and other postemployment benefits net periodic benefit expense:

| Line item | Defined Benefit Pension Plans / Six Months Ended June 30, 2026 | Defined Benefit Pension Plans / Six Months Ended June 30, 2025 | Postemployment Arrangements / Six Months Ended June 30, 2026 | Postemployment Arrangements / Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Service cost | $6.1 | $3.1 | $1.0 | $1.1 |
| Interest cost | 12.5 | 4.1 | 2.5 | 2.8 |
| Expected return on plan assets | (8.1) | (0.4) | — | — |
| Amortization of prior service cost | 2.1 | 1.6 | 1.5 | 1.8 |
| Amortization of actuarial losses | (1.1) | 0.5 | — | — |
| Total net periodic benefit expense | $11.5 | $8.9 | $5.0 | $5.7 |

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In the six months ended June 30, 2026 and 2025, we contributed $0.6 million and $0.2 million, respectively, to the defined benefit pension plans.

### 10. Severance and Repositioning Costs

Severance and repositioning costs incurred during the three and six months ended June 30, 2026 were $47.0 million and $51.1 million, respectively, and consist primarily of severance and employee-related termination benefits, as well as real estate repositioning costs. Severance and repositioning costs reflect integration related actions and adjustments to estimates for actions taken during the year ended December 31, 2025 related to the Merger.

In connection with our strategic initiatives, operating expenses for both the three and six months ended June 30, 2025 included $88.8 million ($67.2 million after-tax) of repositioning costs, primarily related to severance actions related to efficiency initiatives, primarily within the Omnicom Advertising Group and the Omnicom Production Group.

The following table summarizes activity during the six months ended June 30, 2026 related to adjustments to liabilities for severance and contract terminations and other, which are expected to be settled in cash. In addition, real estate write-downs of $1.4 million were recorded during the period, which is a non-cash charge.

| Line item | Liability at December 31, 2025 | Expense | Cash Payments | Liability at June 30, 2026 |
| --- | --- | --- | --- | --- |
| Severance | $539.4 | $49.7 | $(295.1) | $294.0 |
| Contract Terminations and Other | 80.4 | — | (33.4) | 47.0 |
| Total severance and contract terminations and other | $619.8 | $49.7 | $(328.5) | $341.0 |

### 11. Loss on Assets Held for Sale or Dispositions of Subsidiaries

During the fourth quarter of 2025, management determined that the assets and liabilities of certain businesses planned for disposition in the next twelve months, primarily within the Advertising and Experiential & Other (formerly, Execution & Support) disciplines, met the criteria to be classified as held for sale. Accordingly, these businesses were recorded at net realizable value - fair value less cost to sell. The disposals do not represent a strategic shift that has or will have a major effect on our operations or financial results and therefore do not qualify for discontinued operations presentation.

In the first quarter of 2026, we recorded impairment charges of $34.3 million to write down the businesses identified for disposition to net realizable value. Fair value was determined using discounted cash flow analyses, supplemented by observable market inputs where available. These charges were recorded in loss on assets held for sale and dispositions in the consolidated statements of income. In addition, we closed on the sale of certain legacy IPG businesses and recorded an adjustment to goodwill (see Note 5 to the consolidated financial statements).

The following table presents the major classes of assets and liabilities classified as held for sale and included in the consolidated balance sheet as of June 30, 2026. Assets and liabilities classified as held for sale are presented separately within current assets and current liabilities, respectively, in the consolidated balance sheet as of June 30, 2026.

| Line item | June 30, 2026 | December 31, 2025 |
| --- | --- | --- |
| Assets Held for Sale or Disposition |  |  |
| Accounts receivable | $478.9 | $623.4 |
| Work in process | 195.1 | 240.7 |
| Other current assets | 113.8 | 116.8 |
| Property and Equipment, net | 12.4 | 13.1 |
| Other assets | 7.9 | 18.2 |
| Total Assets Held for Sale or Disposition | $808.1 | $1,012.2 |
| Liabilities Held for Sale or Disposition |  |  |
| Accounts payable | $596.0 | $669.7 |
| Customer advances | 246.6 | 377.5 |
| Other current liabilities | 209.8 | 213.8 |
| Total Liabilities Held for Sale or Disposition | $1,052.4 | $1,261.0 |

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### 12. Supplemental Cash Flow Data

Change in operating capital:

| Line item | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- |
| (Increase) decrease in accounts receivable | $856.1 | $955.6 |
| (Increase) decrease in work in process and other current assets | (527.7) | (319.1) |
| Decrease in accounts payable | (2,278.2) | (1,570.4) |
| (Decrease) in customer advances, taxes payable and other current liabilities | (396.1) | (447.8) |
| Change in other assets and liabilities, net | (88.5) | (30.0) |
| Increase (decrease) in operating capital | $(2,434.4) | $(1,411.7) |

Supplemental financial information:

|  |  |  |
| --- | --- | --- |
| Income taxes paid | $$410.7 | 330.2 |
| Interest paid | $$207.7 | 104.3 |

Non-cash increase in lease liabilities:

|  |  |  |
| --- | --- | --- |
| Operating leases | $$79.4 | 90.3 |
| Finance leases | $$13.4 | 19.0 |

### 13. Commitments and Contingent Liabilities

In the ordinary course of business, we are involved in various legal proceedings. We do not presently expect that such proceedings will have a material adverse effect on our results of operations or financial position.

### 14. Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss), net of income taxes:

_Six Months Ended June 30, 2026_

| Line item | Cash Flow Hedge | Defined Benefit Pension Plans and Postemployment Arrangements | Foreign Currency Translation | Total |
| --- | --- | --- | --- | --- |
| January 1 | $(1.3) | $(40.2) | $(1,224.3) | $(1,265.8) |
| Other comprehensive income (loss) before reclassifications | — | — | (32.8) | (32.8) |
| Reclassification from accumulated other comprehensive income (loss) | 0.9 | 0.1 | — | 1.0 |
| June 30 | $(0.4) | $(40.1) | $(1,257.1) | $(1,297.6) |

_Six Months Ended June 30, 2025_

|  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| January 1 | $ | $(5.0) | $ | $(25.5) | $ | $(1,445.4) | $ | $(1,475.9) |
| Other comprehensive income (loss) before reclassifications | — |  | — |  | 202.2 |  | 202.2 |  |
| Reclassification from accumulated other comprehensive income (loss) | 1.9 |  | 0.9 |  | — |  | 2.8 |  |
| June 30 | $ | $(3.1) | $ | $(24.6) | $ | $(1,243.2) | $ | $(1,270.9) |

### 15. Fair Value

Financial assets and liabilities measured at fair value on a recurring basis:

| June 30, 2026 | Level 1 | Level 2 | Level 3 | Total |
| --- | --- | --- | --- | --- |
| Assets: |  |  |  |  |
| Cash and cash equivalents | $3,336.2 |  |  | $3,336.2 |
| Marketable equity securities | $0.8 |  |  | $0.8 |
| Cross currency swaps - net investment hedge |  | $11.9 |  | $11.9 |
| Liabilities: |  |  |  |  |
| Contingent purchase price obligations |  |  | $244.8 | $244.8 |

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| December 31, 2025 | Level 1 | Level 2 | Level 3 | Total |
| --- | --- | --- | --- | --- |
| Assets: |  |  |  |  |
| Cash and cash equivalents | $6,881.1 |  |  | $6,881.1 |
| Marketable equity securities | $0.9 |  |  | $0.9 |
| Cross currency swaps - net investment hedge |  | $7.1 |  | $7.1 |
| Liabilities: |  |  |  |  |
| Contingent purchase price obligations |  |  | $214.9 | 214.9 |

Changes in contingent purchase price obligations:

| Line item | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- |
| January 1 | $214.9 | $220.1 |
| Acquisitions | 24.8 | 5.4 |
| Revaluation and interest | 8.2 | 7.3 |
| Payments | (3.3) | (41.5) |
| Foreign currency translation | 0.2 | 0.8 |
| June 30 | $244.8 | $192.1 |

Carrying amount and fair value of our financial assets and liabilities:

| Line item | June 30, 2026 / Carrying Amount | June 30, 2026 / Fair Value | December 31, 2025 / Carrying Amount | December 31, 2025 / Fair Value |
| --- | --- | --- | --- | --- |
| Assets: |  |  |  |  |
| Cash and cash equivalents | $3,336.2 | $3,336.2 | $6,881.1 | $6,881.1 |
| Marketable equity securities | 0.8 | 0.8 | 0.9 | 0.9 |
| Non-marketable equity securities | — | — | 62.1 | 62.1 |
| Cross currency swaps - net investment hedge | 11.9 | 11.9 | 7.1 | 7.1 |
| Liabilities: |  |  |  |  |
| Short-term debt | $48.8 | $48.8 | $62.0 | $62.0 |
| Foreign currency derivatives | 0.2 | 0.2 | — | — |
| Contingent purchase price obligations | 244.8 | 244.8 | 214.9 | 214.9 |
| Long-Term Debt | 9,953.2 | 9,624.7 | 9,054.5 | 8,818.9 |

The estimated fair value of the foreign currency derivatives and the cross-currency swaps are determined using model-derived valuations, taking into consideration foreign currency rates, interest rates, and counterparty credit risk. The estimated fair value of the contingent purchase price obligations is calculated in accordance with the terms of each acquisition agreement and is discounted. The fair value of long-term debt is based on quoted market prices.

### 16. Accelerated Share Repurchase

From time to time, our Board of Directors authorizes the repurchase of shares of our common stock. In February 2026, the Board authorized the repurchase of up to $5.0 billion of our common stock. Pursuant to this authorization, we also entered into an accelerated share repurchase ("ASR") program to repurchase approximately $2.5 billion of our common stock and received an aggregate initial share delivery of 24.7 million shares of our common stock. We received an additional 7.5 million shares upon settlement of the ASR agreement in May 2026 and recorded the final adjustment, which increased additional paid-in-capital.

### 17. Subsequent Events

We have evaluated events subsequent to the balance sheet date and determined that there have not been any events that have occurred that would require additional adjustments to, or disclosures in, these unaudited consolidated financial statements.

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## Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

### Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

(Dollars in tables in millions, except per share amounts.)

### FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains forward-looking statements, including statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. In addition, from time to time, we or our representatives have made, or may make, forward-looking statements, orally or in writing. These statements may discuss goals, intentions, and expectations as to future plans, trends, events, results of operations or financial condition, or otherwise, based on current beliefs of management as well as assumptions made by, and information currently available to management. Forward-looking statements may be accompanied by words such as “aim”, “anticipate”, “believe”, “plan”, “could”, “should”, “would”, “estimate”, “expect”, “forecast”, “future”, “guidance”, “intend”, “may”, “will”, “possible”, “potential”, “predict”, “project” or similar words, phrases or expressions. These forward-looking statements are subject to various risks and uncertainties, many of which are outside of our control. Therefore, you should not place undue reliance on such statements. Factors that could cause actual results to differ materially from those in the forward-looking statements include:

- risks relating to the Merger, including risks related to the integration of IPG’s business, such as, among others: uncertainties associated with retaining key management and other employees; potential disruptions to client, vendor, and business partner relationships; the risk that integration activities may be more time-consuming, complex, or costly than expected; the possibility that anticipated synergies, efficiencies, and other benefits of the Merger may not be realized, or may be realized more slowly than anticipated; and risks associated with managing a larger, more complex combined organization and effectively integrating systems, processes, operations, and cultures;
- adverse economic conditions, including geopolitical events, international hostilities, acts of terrorism, public health crises, inflation or stagflation, tariffs and other trade barriers, central bank interest rate policies in countries that comprise our major markets, labor and supply chain issues affecting the distribution of our clients’ products, or a disruption in the credit markets;
- international, national, or local economic conditions that could adversely affect us or our clients;
- reductions in client spending, a slowdown in client payments or a deterioration or disruption in the credit markets;
- the ability to attract new clients and retain existing clients in the manner anticipated;
- changes in client marketing and communications services requirements;
- failure to manage potential conflicts of interest between or among clients;
- unanticipated changes related to competitive factors in the marketing and communications services industries;
- unanticipated changes to, or an inability to hire and retain, key personnel;
- currency exchange rate fluctuations;
- reliance on information technology systems and risks related to cybersecurity incidents;
- effective management of the risks, challenges, and efficiencies presented by utilizing artificial intelligence, or AI, technologies and related partnerships in our business, and their use by our competitors;
- failure to adapt to technological developments;
- our liquidity, long-term financing needs, credit ratings, and access to capital markets;
- changes in legislation or governmental regulations affecting us or our clients;
- losses on media purchases and production costs incurred on behalf of clients;
- risks associated with assumptions we make in connection with our acquisitions, critical accounting estimates, and legal proceedings;
- our international operations, which are subject to the risks of currency repatriation restrictions, social or political conditions and an evolving regulatory environment in high-growth markets and developing countries;
- risks related to our environmental, social, and governance goals and initiatives, including impacts from regulators and other stakeholders, and the impact of factors outside of our control on such goals and initiatives;
- changes in tax rates, tax laws, regulations or interpretations, or adverse outcomes of tax audits or proceedings; and
- other business, financial, operational, and legal risks and uncertainties detailed from time to time in our filings with the SEC.

The foregoing list of factors is not exhaustive. You should carefully consider the foregoing factors and the other risks and uncertainties that may affect the Company’s business, including those described in Item 1A, “Risk Factors” and Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our 2025 10-K, and in Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this report and in other documents filed from time to time with the SEC. Except as required under applicable law, we do not assume any obligation to update these forward-looking statements.

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### EXECUTIVE SUMMARY

The unaudited consolidated financial statements and related notes to the unaudited consolidated financial statements, including our critical accounting estimates, and the related Management’s Discussion and Analysis of Financial Condition and Results of Operations included in this report, should be read in conjunction with our 2025 Form 10-K.

### Merger with IPG

On the Closing Date, Omnicom completed the Merger. Omnicom is the acquirer of IPG under U.S. GAAP, and as a result, the consolidated financial statements of Omnicom for periods prior to the Closing Date do not include the results of operations, financial position, or cash flows of IPG. The results of operations of IPG are included in Omnicom’s consolidated financial statements only from the Closing Date forward. Accordingly, Omnicom’s results of operations, financial condition and cash flows after the Closing Date are not comparable to prior periods due to the inclusion of IPG’s results from the Closing Date (see Note 5 to the consolidated financial statements).

### Risks and Uncertainties

Global economic disruptions, including geopolitical events, international hostilities, acts of terrorism, public health crises, inflation or stagflation, tariffs and other trade barriers, central bank interest rate policies in our major markets, and labor or supply chain challenges, could contribute to economic uncertainty and volatility. The impact of these conditions on our business may vary by geographic market and service discipline. We monitor macroeconomic conditions, client revenue levels, and other relevant factors and may take actions to align our cost structure with changes in client demand and to manage working capital. However, there can be no assurance that such actions will be sufficient to mitigate the effects of adverse economic conditions, reductions in client spending, changes in client creditworthiness, or other developments.

### Our Business

Omnicom is a strategic holding company that operates through global networks, connected capabilities and specialized agencies, which connect its comprehensive portfolio of companies to deliver marketing, sales, communications, and commerce services to many of the largest global companies. Our products and service offerings support client objectives across our primary focus areas: media, data, commerce, CRM, content, creativity and AI.

Omnicom’s agencies integrate data, creativity, and technology to deliver coordinated marketing, communications, and commerce solutions. All of our agencies are supported by our integrated technology platform: Omni, which includes Acxiom and Interact, which were acquired from IPG and Flywheel Commerce Cloud, respectively, as well as privacy-focused identity and data management capabilities. These capabilities include the integration of emerging AI-based tools, such as generative AI, into planning, creative advertising, media, and analytics workflows.

Omnicom client teams collaborate and accelerate client-service innovation through two integral enterprise-wide solutions: the Global Growth Team ("GGT") and our Client Success Leaders ("CSLs"). GGT ensures an integrated, enterprise-level view of client needs and innovative solutions across new business development. CSLs manage our agency’s capabilities, providing holistic, tailored solutions across our service lines for individual client strategies and key performance indicators ("KPIs") to enable client success.

Our global networks include: Omnicom Advertising ("OA"), Omnicom Media ("OM"), the DAS Group of Companies ("DAS"), and the Communications Consultancy Network ("CCN"). OA includes our creative brands, BBDO, TBWA, and McCann, which we acquired from IPG, and the brands included within the Advertising Collective. OM includes OMD, PHD, Hearts & Sciences, as well as UM, Acxiom, Initiative and Mediahub, which we acquired from IPG. DAS includes Omnicom Precision Marketing and MRM, which we acquired from IPG and Omnicom Health, which includes IPG Health. CCN includes FleishmanHillard and Ketchum, as well as Golin and Weber Shandwick, which we acquired from IPG.

On a global, pan-regional, and local basis, our agencies provide a comprehensive range of services across our fundamental disciplines. Beginning in 2026, we realigned our disciplines as follows and as described below: Integrated Media, Advertising, Health, Public Relations, and Experiential & Other. The classification of certain services and prior period amounts have been reclassified to conform to the current period presentation.

Integrated Media includes strategic media planning and buying, performance media and audience-based solutions, as well as digital commerce and data and identity solutions. It also includes proprietary data, analytics, and precision marketing capabilities and automated content delivery solutions. Advertising includes creative, brand development, and integrated advertising services across digital and traditional channels, supporting clients' brand strategy and communications needs. Health includes specialized medical communications, market access strategy and other services to global health and pharmaceutical companies. Public Relations services include corporate communications, crisis management, public affairs, and media relations services. Experiential & Other includes experiential design and execution, live and digital events, and entertainment and sports marketing, as well as consulting, branding, and design services. It also includes field marketing, merchandising, custom communications and training, and other specialized marketing and support services.

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Our geographic markets include the Americas, which includes North America and Latin America, Europe, the Middle East and Africa ("EMEA"), and Asia-Pacific.

Our business model was built and continues to evolve around our clients. While our networks, connected capabilities and agencies operate under different names and frame their ideas in different disciplines, we organize our services around our clients. Our Omni platform integrates data and technology in support of the services provided by all of our disciplines. Our fundamental business principle is that our clients’ specific requirements are the central focus of how we structure our service offerings and allocate our resources. This client-centric business model requires that multiple agencies and disciplines within Omnicom collaborate in formal client networks, such as our CSLs and GGT, as well as informal virtual client networks, resulting in a client matrix organization structure. This collaboration allows us to execute our clients’ marketing requirements in a consistent and comprehensive manner. We use our client-centric approach to grow our business by expanding our service offerings to existing clients, moving into new markets and obtaining new clients. In addition, we pursue selective acquisitions of complementary companies with strong entrepreneurial management teams that could fill gaps in our service delivery to our existing clients.

Generative AI and agentic AI have, and we believe will continue to have, a significant impact on how we provide services to our clients and how we enhance the productivity of our people. As the marketing industry adjusts to the evolving AI landscape, we seek to leverage these technologies to better serve our clients and maintain our competitive advantage. In January 2026, we unveiled our next generation of Omni, our proprietary marketing intelligence platform. Omni integrates our connected capabilities, high-quality and comprehensive identity and data infrastructure, and cutting-edge AI into a single operating system that we believe will give our clients a unified foundation to connect strategy, execution, and performance across their entire marketing ecosystem.

As we continue to make investments in new technologies, we remain committed to responsible AI practices and collaboration to harness AI's potential, while evaluating related risks, such as ethical considerations, public perception and reputational concerns, intellectual property protection, regulatory compliance, privacy and data security concerns and our ability to effectively adopt this new emerging technology.

Our clients operate in virtually every sector of the global economy. For the twelve months ended June 30, 2026, our largest client accounted for 2.0% of our revenue, and our 100 largest clients, which represent many of the world’s major marketers, accounted for approximately 52.5% of our revenue. Our clients operate in virtually every sector of the global economy with no one industry representing more than 19% of our revenue for the six months ended June 30, 2026.

Although our revenue is generally balanced between the United States and international markets and we have a large and diverse client base, we are not immune to general economic downturns.

Global economic conditions and disruptions have a direct impact on our business and financial performance. Adverse global economic conditions and disruptions pose a risk that our clients may reduce, postpone or cancel spending on marketing and communications services, which would reduce the demand for our services. Revenue is typically lower in the first and third quarters and higher in the second and fourth quarters, reflecting client spending patterns during the year, as well as additional project work that usually occurs in the fourth quarter. Certain global events targeted by major marketers for advertising expenditures, such as the FIFA World Cup and the Olympics, and certain national events, such as the U.S. election process, may affect our revenue year-over-year in certain businesses. Typically, these events do not have a significant impact on our revenue in any period.

Given our size and breadth, we monitor several financial indicators. The KPIs that we focus on are revenue growth and variability of operating expenses.

We analyze revenue growth by reviewing the components and composition of the growth, including growth by principal regional market, connected capabilities and marketing disciplines, the impact from foreign currency exchange rate changes, and growth from our largest clients. Operating expenses primarily consist of cost of services, selling, general and administrative expenses, or SG&A, and depreciation and amortization, and are analyzed for each network by the Chief Operating Decision Maker, who allocates resources accordingly.

### Financial Performance

Worldwide revenue for the three months ended June 30, 2026 increased $2.5 billion, or 63.4%, to $6.6 billion, compared to $4.0 billion in the prior year period. Our performance benefited from the Merger, as the second quarter of 2026 represents the second full quarter of results including IPG following the Closing Date. The year-over-year increase in worldwide revenue reflected worldwide constant currency growth (defined below) of $2,477.9 million, or 61.7%, and a favorable impact from foreign exchange rates of $69.0 million, which increased revenue by 1.7%.

Worldwide revenue for the six months ended June 30, 2026 increased $5.1 billion, or 66.2%, to $12.8 billion, compared to $7.7 billion in the prior year period. Our performance benefited from the Merger. The year-over-year increase in worldwide revenue reflected worldwide constant currency growth (defined below) of $4,856.2 million, or 63.0%, and a favorable impact from foreign exchange rates of $243.2 million, which increased revenue by 3.2%.

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The components of our revenue did not change substantially because of the Merger. For the three months ended June 30, 2026, revenue increased $2.5 billion across our disciplines as follows year-over-year: Integrated Media, $1.3 billion, Advertising, $367.2 million, Public Relations, $338.9 million, Health, $260.1 million, and Experiential & Other, $320.4 million.

For the six months ended June 30, 2026, revenue increased $5.1 billion across our disciplines as follows year-over-year: Integrated Media, $2.4 billion, Advertising, $752.8 million, Public Relations, $676.4 million, Health, $546.8 million, and Experiential & Other, $690.0 million.

Worldwide revenue increased across our geographic markets for the three months ended June 30, 2026, compared to the three months ended June 30, 2025, as follows, and was primarily driven by the acquisition of IPG: North America, $1.8 billion, Latin America, $133.9 million, Europe, $421.2 million, Middle East and Africa, $75.6 million, and Asia-Pacific, $135.1 million.

Worldwide revenue increased across our geographic markets for the six months ended June 30, 2026, compared to the six months ended June 30, 2025, as follows, and was primarily driven by the acquisition of IPG: North America, $3.6 billion, Latin America, $233.6 million, Europe, $865.2 million, Middle East and Africa, $149.0 million, and Asia-Pacific, $296.9 million.

The table below presents worldwide organic growth period to period compared to the combined basis, net of businesses held for sale or disposition (as defined below).

The components of period-over-period revenue change:

| Line item | Three Months Ended June 30, / Revenue1 | Three Months Ended June 30, / Less:Dispositions & Held for Sale | Three Months Ended June 30, / Core Operations1 / $ | Three Months Ended June 30, / Core Operations1 / % Growth | Six Months Ended June 30, / Revenue1 | Six Months Ended June 30, / Less:Dispositions & Held for Sale | Six Months Ended June 30, / Core Operations1 / $ | Six Months Ended June 30, / Core Operations1 / % Growth |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Combined revenue for 20252 | $6,552.4 | $960.5 | $5,591.9 |  | $12,565.4 | $1,708.8 | $10,856.6 |  |
| Components of revenue change: |  |  |  |  |  |  |  |  |
| Foreign exchange rate impact | 69.0 | 7.3 | 61.7 | 1.1% | 243.2 | 37.2 | 206.0 | 1.9% |
| Net effect of (dispositions) acquisitions | (397.9) | (400.3) | 2.4 | — | (548.9) | (551.3) | 2.4 | — |
| Organic growth | 339.0 | — | 339.0 | 6.1% | 545.7 | — | 545.7 | 5.0% |
| Revenue for 2026 | $6,562.5 | $567.5 | $5,995.0 | 7.2% | $12,805.4 | $1,194.7 | $11,610.7 | 6.9% |

1) Core Operations, net of dispositions and held for sale, excludes revenue of businesses that have been disposed of or are classified as held for sale. Amounts for periods prior to the Closing Date are calculated on a combined basis for Omnicom and IPG.

2) Represents combined Omnicom and IPG revenue for the three and six months ended June 30, 2025. The $6.6 billion and $12.6 billion are comprised of Omnicom's reported revenue of $4.0 billion and $7.7 billion and IPG's reported revenue of $2.5 billion and $4.9 billion, for the three and six months ended June 30, 2025, respectively, and are provided for comparative purposes. This information has been prepared for informational purposes only and does not represent pro forma financial information prepared in accordance with Article 11 of Regulation S-X. Accordingly, such information does not purport to represent what the Company’s revenue would have been had the acquisition occurred at an earlier date and should not be considered indicative of future performance.

Revenue from Core Operations for the three and six months ended June 30, 2026 increased $403.1 million, or 7.2%, and $754.1 million, or 6.9%, respectively, as compared to the combined Core Operations revenue for the prior year periods. This was driven by organic growth of 6.1% and 5.0%, respectively, and a positive impact from foreign exchange rate changes of $61.7 million, or 1.1%, and $206.0 million, or 1.9%, in the three and six months ended June 30, 2026, respectively.

The components and percentages are calculated as follows:

- Foreign exchange rate impact is calculated by translating the current period’s local currency revenue using the prior period average exchange rates to derive current period constant currency revenue. The foreign exchange rate impact is the difference between the current period revenue in U.S. Dollars and the current period constant currency revenue.
- Organic growth is calculated by subtracting the foreign exchange rate impact from total revenue growth, which is equal to the current period revenue from Core Operations minus the prior period revenue from Core Operations.
- Percentage growth is calculated by dividing the individual amount by the prior period Core Operations revenue base.

When we use the term Constant currency growth it refers to the change in revenue in the period, excluding the effects of foreign currency exchange rate fluctuations. This measure is calculated by adjusting current period revenue to eliminate the impact of changes in foreign exchange rates and comparing the resulting amount to prior year revenue.

Changes in the value of foreign currencies against the U.S. Dollar affect our results of operations and financial position. For the most part, because the revenue and expense of our foreign operations are both denominated in the same local currency, the

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economic impact on operating margin is minimized. Assuming exchange rates at July 22, 2026 remain unchanged, we expect the changes in foreign exchange rates will remain flat for the third quarter and positively impact our revenue by 1.0% for the full year.

In the normal course of business, our agencies both gain and lose business from clients each year due to a variety of factors. Under our client-centric approach, we seek to broaden our relationships with all of our clients. Our largest client represented 2.0% and 2.6% of revenue for the twelve months ended June 30, 2026 and 2025, respectively. Our ten largest and 100 largest clients represented 15.3% and 52.5% of revenue for the twelve months ended June 30, 2026, respectively, and 19.0% and 54.1% of revenue for the twelve months ended June 30, 2025, respectively.

A summary of our consolidated results of operations period-over-period:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, / $ Change | Six Months Ended June 30, / % Change | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 | $ Change | % Change |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Revenue4 | $6,562.5 | $4,015.6 | $2,546.9 | 63.4% | $12,805.4 | $7,706.0 | $5,099.4 | 66.2% |
| Operating Income2 | $922.5 | $439.2 | $483.3 | 110.0% | $1,568.7 | $891.8 | $676.9 | 75.9% |
| Operating Margin2 | 14.1% | 10.9% |  | 3.2% | 12.3% | 11.6% |  | 0.7% |
| Net Income - Omnicom Group Inc.2 | $584.8 | $257.6 | $327.2 | 127.0% | $990.0 | $545.3 | $444.7 | 81.6% |
| Net Income per Share - Omnicom Group Inc.: Diluted2,3 | $2.08 | $1.31 | $0.77 | 58.8% | $3.41 | $2.77 | $0.64 | 23.1% |
| EBITA1,2,3,4 | $1,040.2 | $459.0 | $581.2 | 126.6% | $1,803.8 | $933.4 | $870.4 | 93.3% |
| EBITA Margin %1,2,3,4 | 15.9% | 11.4% |  | 4.5% | 14.1% | 12.1% |  | 2.0% |

1) Reconciliation of Non-GAAP Financial Measures on page [30](#id0f05320f668424ca2dbe9c8bbfe3692_187).

2) For the three and six months ended June 30, 2026, operating expenses included $47.0 million ($35.3 million after-tax) and $51.1 million ($38.3 million after-tax), respectively, of repositioning costs, primarily related to severance actions in connection with the Merger, and $34.3 million ($27.8 million after-tax) for the six months ended June 30, 2026 of losses on dispositions of certain businesses in connection with the Merger (see Notes 10 and 11 to the unaudited consolidated financial statements). In addition, included in selling, general and administrative expenses for the three and six months ended June 30, 2026, are integration and acquisition related costs of $40.1 million ($38.0 million after-tax) and $99.5 million ($84.8 million after-tax), respectively, related to the Merger. The net impact of these items reduced operating income for the three and six months ended June 30, 2026, by $87.1 million ($73.3 million after-tax) and $184.9 million ($150.9 million after-tax), respectively, which reduced diluted net income per share - Omnicom Group Inc. by $0.26 and $0.52, respectively.

For both the three and six months ended June 30, 2025, operating expenses included $88.8 million ($67.2 million after-tax) of repositioning costs recorded in the second quarter of 2025, primarily related to severance actions related to efficiency initiatives (see Note 10 to the unaudited consolidated financial statements). In addition, included in selling, general and administrative expenses for the three and six months ended June 30, 2025, are acquisition related costs of $66.0 million ($61.6 million after-tax) and $99.8 million ($94.3 million after-tax), respectively, related to the Merger (see Note 1 to the unaudited consolidated financial statements). The net impact of these items reduced operating income for the three and six months ended June 30, 2025 by $154.8 million ($128.8 million after-tax) and $188.6 million ($161.5 million after-tax), respectively, which reduced diluted net income per share - Omnicom Group Inc. by $0.66 and $0.82, respectively.

3) EBITA is defined as earnings before interest, taxes, and amortization, principally of acquired intangible assets and internally developed strategic platform assets. We believe EBITA is useful in evaluating the impact of amortization of acquired intangible assets and internally developed strategic platform assets on operating performance and allows for comparability between reporting periods. The effect of after-tax amortization of acquired intangible assets and internally developed strategic platform assets decreased diluted net income per share by $0.31 and $0.08 for the three months ended June 30, 2026 and 2025, respectively, and $0.60 and $0.15 for the six months ended June 30, 2026 and 2025, respectively.

4) The effect of dispositions and assets held for sale for the three and six months ended June 30, 2026 reduced revenue by $567.5 million and $1.2 billion, respectively, and EBITA by $58.5 million and $86.4 million, respectively, resulting in a decrease in EBITA Margin of 0.6% and 0.9%, respectively.

21

### CONSOLIDATED RESULTS OF OPERATIONS

The period-over-period change in results of operations:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Three Months Ended June 30, / $ Change | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 | Six Months Ended June 30, / $ Change |
| --- | --- | --- | --- | --- | --- | --- |
| Revenue | $6,562.5 | $4,015.6 | $2,546.9 | $12,805.4 | $7,706.0 | $5,099.4 |
| Operating Expenses: |  |  |  |  |  |  |
| Salary and service costs | 4,713.3 | 2,932.6 | 1,780.7 | 9,352.9 | 5,678.9 | 3,674.0 |
| Occupancy and other costs | 504.4 | 325.9 | 178.5 | 1,031.7 | 640.5 | 391.2 |
| Severance and repositioning costs2 | 47.0 | 88.8 | (41.8) | 51.1 | 88.8 | (37.7) |
| Loss on assets held for sale and dispositions2 | — | — | — | 34.3 | — | 34.3 |
| Cost of services | 5,264.7 | 3,347.3 | 1,917.4 | 10,470.0 | 6,408.2 | 4,061.8 |
| Selling, general and administrative expenses2 | 209.0 | 170.4 | 38.6 | 433.5 | 288.3 | 145.2 |
| Depreciation and amortization | 166.3 | 58.7 | 107.6 | 333.2 | 117.7 | 215.5 |
| Total Operating Expenses2 | 5,640.0 | 3,576.4 | 2,063.6 | 11,236.7 | 6,814.2 | 4,422.5 |
| Operating Income2 | 922.5 | 439.2 | 483.3 | 1,568.7 | 891.8 | 676.9 |
| Interest Expense | 123.2 | 62.6 | 60.6 | 242.2 | 121.7 | 120.5 |
| Interest Income | 29.9 | 21.9 | 8.0 | 76.9 | 51.6 | 25.3 |
| Income Before Income Taxes and Income (Loss) From Equity Method Investments | 829.2 | 398.5 | 430.7 | 1,403.4 | 821.7 | 581.7 |
| Income Tax Expense | 224.8 | 120.5 | 104.3 | 379.4 | 241.2 | 138.2 |
| Income (Loss) From Equity Method Investments | 1.1 | (0.2) | 1.3 | 0.2 | 0.7 | (0.5) |
| Net Income2 | 605.5 | 277.8 | 327.7 | 1,024.2 | 581.2 | 443.0 |
| Net Income Attributed To Noncontrolling Interests | 20.7 | 20.2 | 0.5 | 34.2 | 35.9 | (1.7) |
| Net Income - Omnicom Group Inc.2 | $584.8 | $257.6 | $327.2 | $990.0 | $545.3 | $444.7 |
| Net Income Per Share - Omnicom Group Inc.:2,3 |  |  |  |  |  |  |
| Basic | $2.09 | $1.32 | $0.77 | $3.43 | $2.78 | $0.65 |
| Diluted | $2.08 | $1.31 | $0.77 | $3.41 | $2.77 | $0.64 |
| Revenue4 | $6,562.5 | $4,015.6 | $2,546.9 | $12,805.4 | $7,706.0 | $5,099.4 |
| Operating Margin %2 | 14.1% | 10.9% |  | 12.3% | 11.6% |  |
| EBITA1,2,3,4 | $1,040.2 | $459.0 | $581.2 | $1,803.8 | $933.4 | $870.4 |
| EBITA Margin %1,2,3,4 | 15.9% | 11.4% | 4.5% | 14.1% | 12.1% | 2.0% |

1) Reconciliation of Non-GAAP Financial Measures on page [30](#id0f05320f668424ca2dbe9c8bbfe3692_187).

2) For the three and six months ended June 30, 2026, operating expenses included $47.0 million ($35.3 million after-tax) and $51.1 million ($38.3 million after-tax), respectively, of repositioning costs, primarily related to severance actions in connection with the Merger and $34.3 million ($27.8 million after-tax) for the six months ended June 30, 2026 of losses on dispositions of certain businesses in connection with the Merger (see Notes 10 and 11 to the unaudited consolidated financial statements). In addition, included in selling, general and administrative expenses for the three and six months ended June 30, 2026, are integration and acquisition related costs of $40.1 million ($38.0 million after-tax) and $99.5 million ($84.8 million after-tax), respectively, related to the Merger. The net impact of these items reduced operating income for the three and six months ended June 30, 2026, by $87.1 million ($73.3 million after-tax) and $184.9 million ($150.9 million after-tax), respectively, which reduced diluted net income per share - Omnicom Group Inc. by $0.26 and $0.52, respectively.

For the both three and six months ended June 30, 2025, operating expenses included $88.8 million ($67.2 million after-tax) of repositioning costs recorded in the second quarter of 2025, primarily related to severance actions related to efficiency initiatives (see Note 10 to the unaudited consolidated financial statements). In addition, included in selling, general and administrative expenses for the three and six months ended June 30, 2025, are acquisition related costs of $66.0 million ($61.6 million after-tax) and $99.8 million ($94.3 million after-tax), respectively, related to the Merger (see Note 1 to the unaudited consolidated financial statements). The net impact of these items reduced operating income for the three and six months ended June 30, 2025 by $154.8 million ($128.8 million after-tax) and $188.6 million ($161.5 million after-tax), respectively, which reduced diluted net income per share - Omnicom Group Inc. by $0.66 and $0.82, respectively.

3) EBITA is defined as earnings before interest, taxes, and amortization, principally of acquired intangible assets and internally developed strategic platform assets. We believe EBITA is useful in evaluating the impact of amortization of acquired intangible assets and internally

22

developed strategic platform assets on operating performance and allows for comparability between reporting periods. The effect of after-tax amortization of acquired intangible assets and internally developed strategic platform assets decreased diluted net income per share by $0.31 and $0.08 for the three months ended June 30, 2026 and 2025, respectively, and $0.60 and $0.15 for the six months ended June 30, 2026 and 2025, respectively.

4) The effect of dispositions and assets held for sale for the three and six months ended June 30, 2026 reduced revenue by $567.5 million and $1.2 billion, respectively, and reduced EBITA by $58.5 million and $86.4 million, respectively, resulting in a decrease in EBITA Margin of 0.6% and 0.9%, respectively.

### Revenue by Discipline

To monitor the changing needs of our clients and to further expand the scope of our services to key clients, we monitor revenue across a broad range of disciplines and group them into the following categories. Our networks, connected capabilities, and agencies provide a comprehensive range of services across our principal disciplines: Integrated Media, Advertising, Health, Public Relations, and Experiential & Other.

Beginning in the first quarter of 2026, we realigned the classification of certain services and prior period amounts have been reclassified to conform to the current period presentation.

The period-over-period change in revenue and constant currency growth by discipline:

| Line item | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, |
| --- | --- | --- | --- | --- | --- | --- |
|  | 2026 |  | 2025 |  | 2026 vs. 2025 |  |
|  | $ | % ofRevenue | $ | % ofRevenue | $ Change | % Constant Currency Growth |
| Integrated Media | 3,259.4 | 49.7% | 1,999.1 | 49.8% | 1,260.3 | 61.2% |
| Advertising | 1,079.1 | 16.4% | 711.9 | 17.7% | 367.2 | 48.3% |
| Public Relations | 708.9 | 10.8% | 370.0 | 9.2% | 338.9 | 90.4% |
| Health | 586.0 | 8.9% | 325.9 | 8.1% | 260.1 | 80.2% |
| Experiential & Other | 929.1 | 14.2% | 608.7 | 15.2% | 320.4 | 51.6% |
| Revenue1 | $6,562.5 |  | $4,015.6 |  | $2,546.9 | 61.7% |

| Line item | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, |
| --- | --- | --- | --- | --- | --- | --- |
|  | 2026 |  | 2025 |  | 2026 vs. 2025 |  |
|  | $ | % ofRevenue | $ | % ofRevenue | $ Change | % Constant Currency Growth |
| Integrated Media | 6,237.8 | 48.7% | 3,804.4 | 49.4% | 2,433.4 | 60.6% |
| Advertising | 2,139.3 | 16.7% | 1,386.5 | 18.0% | 752.8 | 49.3% |
| Public Relations | 1,405.5 | 11.0% | 729.1 | 9.5% | 676.4 | 90.5% |
| Health | 1,171.7 | 9.2% | 624.9 | 8.1% | 546.8 | 86.9% |
| Experiential & Other | 1,851.1 | 14.4% | 1,161.1 | 15.0% | 690.0 | 57.1% |
| Revenue1 | $12,805.4 |  | $7,706.0 |  | $5,099.4 | 63.0% |

1) Revenue for the three and six months ended June 30, 2026 includes amounts attributable to disposals or entities classified as held for sale, consisting of $567.5 million and $1.2 billion, respectively.

The components of our revenue did not change substantially because of the Merger. For the three months ended June 30, 2026, revenue increased $2.5 billion across our disciplines as follows year-over-year: Integrated Media, $1.3 billion, Advertising, $367.2 million, Public Relations, $338.9 million, Health, $260.1 million, and Experiential & Other, $320.4 million. Constant currency growth was $2.5 billion, or 61.7%, compared to the prior-year period. Changes in foreign currency exchange rates period-over-period increased revenue $69.0 million, or 1.7%. The increase in revenue from foreign exchange translation was primarily related to the strengthening of most currencies, including the Euro, Australian Dollar. Brazilian Real and Mexican Peso, against the U.S. Dollar.

For the six months ended June 30, 2026, revenue increased $5.1 billion across our disciplines as follows year-over-year: Integrated Media, $2.4 billion, Advertising, $752.8 million, Public Relations, $676.4 million, Health, $546.8 million, and Experiential & Other, $690.0 million. Constant currency growth was $4.9 billion, or 63.0%, compared to the prior-year period. Changes in foreign currency exchange rates period over period increased revenue $243.2 million, or 3.2%. The increase in revenue from foreign exchange translation was primarily related to the strengthening of most currencies, including the Euro, British Pound, Australian Dollar and Mexican Peso, against the U.S. Dollar.

23

### Revenue by Geography

The period-over-period change in revenue and constant currency growth in our geographic markets:

| Line item | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  | 2026 |  |  | 2025 |  |  | 2026 vs. 2025 |  |  |
|  | $ |  | % ofRevenue | $ |  | % ofRevenue | $ Change |  | % Constant Currency Growth |
| Americas: |  |  |  |  |  |  |  |  |  |
| North America | $ | $3,990.8 | 60.8% | $ | $2,209.7 | 55.0% | $ | $1,781.1 | 80.6% |
| Latin America | 248.5 |  | 3.8% | 114.6 |  | 2.9% | 133.9 |  | 98.0% |
| EMEA: |  |  |  |  |  |  |  |  |  |
| Europe | 1,587.6 |  | 24.2% | 1,166.4 |  | 29.0% | 421.2 |  | 33.5% |
| Middle East and Africa | 141.7 |  | 2.2% | 66.1 |  | 1.6% | 75.6 |  | 101.3% |
| Asia-Pacific | 593.9 |  | 8.9% | 458.8 |  | 11.4% | 135.1 |  | 27.7% |
| Revenue1 | $ | $6,562.5 |  | $ | $4,015.6 |  | $ | $2,546.9 | 61.7% |

| Line item | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  | 2026 |  |  | 2025 |  |  | 2026 vs. 2025 |  |  |
|  | $ |  | % ofRevenue | $ |  | % ofRevenue | $ Change |  | % Constant Currency Growth |
| Americas: |  |  |  |  |  |  |  |  |  |
| North America | $ | $7,875.9 | 61.5% | $ | $4,321.2 | 56.1% | $ | $3,554.7 | 82.0% |
| Latin America | 444.6 |  | 3.5% | 211.0 |  | 2.7% | 233.6 |  | 92.2% |
| EMEA: |  |  |  |  |  |  |  |  |  |
| Europe | 3,026.6 |  | 23.6% | 2,161.4 |  | 28.0% | 865.2 |  | 33.0% |
| Middle East and Africa | 285.9 |  | 2.2% | 136.9 |  | 1.8% | 149.0 |  | 97.6% |
| Asia-Pacific | 1,172.4 |  | 9.2% | 875.5 |  | 11.4% | 296.9 |  | 30.8% |
| Revenue1 | $ | $12,805.4 |  | $ | $7,706.0 |  | $ | $5,099.4 | 63.0% |

1) Revenue for the three and six months ended June 30, 2026 includes amounts attributable to disposals or entities classified as held for sale, consisting of $567.5 million and $1.2 billion, respectively.

Worldwide revenue increased across our geographic markets for the three months ended June 30, 2026, compared to the three months ended June 30, 2025, as follows, and was primarily driven by the acquisition of IPG: North America, $1.8 billion, Latin America, $133.9 million, Europe, $421.2 million, Middle East and Africa, $75.6 million, and Asia-Pacific, $135.1 million.

Worldwide revenue increased across our geographic markets for the six months ended June 30, 2026, compared to the six months ended June 30, 2025, as follows, and was primarily driven by the acquisition of IPG: North America, $3.6 billion, Latin America, $233.6 million, Europe, $865.2 million, Middle East and Africa, $149.0 million, and Asia-Pacific, $296.9 million.

### North America

In North America, constant currency growth period-over-period for the three and six months ended June 30, 2026 was primarily driven by the merger and a strong performance in the United States. North America's share of our revenue increased because of the Merger.

### Latin America

In Latin America, constant currency growth for the three and six months ended June 30, 2026, compared to the prior year periods, was led by our Integrated Media and Advertising disciplines, including from the impact of the IPG acquisition. Growth was across all countries in the region. Foreign currency exchange rate changes increased revenue in the three and six months ended June 30, 2026 compared to the same periods in 2025, primarily as a result of the strengthening of the Brazilian Real, Mexican Peso and Colombian Peso against the U.S. Dollar period-over-period.

### EMEA

In Europe, compared to the prior year periods, constant currency growth for the three and six months ended June 30, 2026 was primarily due to the acquisition of IPG. Foreign currency exchange rate changes increased revenue for the three and six months ended June 30, 2026, primarily as a result of the strengthening of the Euro and the British Pound against the U.S. Dollar period-over-period. EMEA's share of our revenue decreased because of the Merger.

24

In the U.K., for the three and six months ended June 30, 2026, constant currency growth period-over-period was 40.9% and 39.1%, respectively, primarily due to the Merger. The mix of our business in the U.K. was 9.4% and 9.3%, for the three and six months ended June 30, 2026, respectively, and 10.8% for both the three and six months ended June 30, 2025.

In Continental Europe, which includes the Euro Zone and the other European countries, constant currency growth was 14.8% and 14.3% for the three and six months ended June 30, 2026, respectively, primarily due to the merger. Foreign currency exchange rate changes increased revenue 3.6% and 8.3% for the three and six months ended June 30, 2026, respectively, primarily as a result of the strengthening of the Euro against the U.S. Dollar period-over-period.

In the Middle East and Africa, constant currency growth was 101.3% and 97.6% for the three and six months ended June 30, 2026, respectively, primarily due to the merger and growth in substantially all countries in the region.

### Asia-Pacific

In Asia-Pacific, constant currency growth increased for the three and six months ended June 30, 2026, primarily due to the merger and a strong performance in all markets in the region. Foreign currency exchange rate changes increased revenue 1.7% and 3.1% for the three and six months ended June 30, 2026, respectively, primarily as a result of the strengthening of most currencies against the U.S. Dollar, including the Australian Dollar and Chinese Renminbi, partially offset by the weakening of the Japanese Yen against the U.S. Dollar. Asia-Pacific's share of our revenue decreased because of the Merger.

### Revenue by Industry

Revenue by type of client industry sector:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Pharmaceuticals and Health | 18% | 15% | 19% | 15% |
| Food and Beverage | 13% | 15% | 13% | 15% |
| Auto | 10% | 13% | 10% | 13% |
| Financial Services | 10% | 8% | 10% | 8% |
| Consumer Products | 9% | 9% | 9% | 9% |
| Retail | 8% | 7% | 8% | 7% |
| Technology | 7% | 8% | 7% | 8% |
| Travel and Entertainment | 6% | 8% | 6% | 8% |
| Services | 3% | 3% | 4% | 3% |
| Government | 3% | 4% | 3% | 3% |
| Telecommunications | 3% | 3% | 3% | 3% |
| Oil, Gas and Utilities | 2% | 2% | 2% | 2% |
| Not-for-Profit | 1% | 2% | 1% | 1% |
| Education | 1% | 1% | 1% | 1% |
| Other | 6% | 2% | 4% | 4% |
| Total | 100% | 100% | 100% | 100% |

25

### Operating Expenses

The period-over-period change in operating expenses:

| Line item | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, | Three Months Ended June 30, |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  | 2026 |  |  | 2025 |  |  | 2026 vs. 2025 |  |  |
|  | $ |  | % ofRevenue | $ |  | % ofRevenue | $Change |  | %Change |
| Revenue | $ | $6,562.5 |  | $ | $4,015.6 |  | $ | $2,546.9 | 63.4% |
| Operating Expenses: |  |  |  |  |  |  |  |  |  |
| Salary and service costs: |  |  |  |  |  |  |  |  |  |
| Salary and related costs | 2,966.6 |  | 45.2% | 1,827.8 |  | 45.5% | 1,138.8 |  | 62.3% |
| Third-party service costs | 1,522.4 |  | 23.2% | 918.4 |  | 22.9% | 604.0 |  | 65.8% |
| Third-party incidental costs | 224.3 |  | 3.4% | 186.4 |  | 4.6% | 37.9 |  | 20.3% |
| Total salary and service costs | 4,713.3 |  | 71.8% | 2,932.6 |  | 73.0% | 1,780.7 |  | 60.7% |
| Occupancy and other costs | 504.4 |  | 7.7% | 325.9 |  | 8.1% | 178.5 |  | 54.8% |
| Loss on assets held for sale and dispositions | — |  | — | — |  | — | — |  | — |
| Severance and repositioning costs | 47.0 |  | 0.7% | 88.8 |  | 2.2% | (41.8) |  | (47.1)% |
| Cost of services | 5,264.7 |  |  | 3,347.3 |  |  | 1,917.4 |  | 57.3% |
| Selling, general and administrative expenses | 209.0 |  | 3.2% | 170.4 |  | 4.2% | 38.6 |  | 22.7% |
| Depreciation and amortization | 166.3 |  | 2.6% | 58.7 |  | 1.5% | 107.6 |  | 183.3% |
| Total Operating Expenses | 5,640.0 |  | 85.9% | 3,576.4 |  | 89.1% | 2,063.6 |  | 57.7% |
| Operating Income | $ | $922.5 | 14.1% | $ | $439.2 | 10.9% | $ | $483.3 | 110.0% |

| Line item | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, | Six Months Ended June 30, |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  | 2026 |  |  | 2025 |  |  | 2026 vs. 2025 |  |  |
|  | $ |  | % ofRevenue | $ |  | % ofRevenue | $Change |  | %Change |
| Revenue | $ | $12,805.4 |  | $ | $7,706.0 |  | $ | $5,099.4 | 66.2% |
| Operating Expenses: |  |  |  |  |  |  |  |  |  |
| Salary and service costs: |  |  |  |  |  |  |  |  |  |
| Salary and related costs | 6,028.2 |  | 47.1% | 3,608.3 |  | 46.8% | 2,419.9 |  | 67.1% |
| Third-party service costs | 2,888.1 |  | 22.6% | 1,715.2 |  | 22.3% | 1,172.9 |  | 68.4% |
| Third-party incidental costs | 436.6 |  | 3.4% | 355.4 |  | 4.6% | 81.2 |  | 22.8% |
| Total salary and service costs | 9,352.9 |  | 73.0% | 5,678.9 |  | 73.7% | 3,674.0 |  | 64.7% |
| Occupancy and other costs | 1,031.7 |  | 8.1% | 640.5 |  | 8.3% | 391.2 |  | 61.1% |
| Loss on assets held for sale and dispositions | 34.3 |  | 0.3% | — |  | — | 34.3 |  |  |
| Severance and repositioning costs | 51.1 |  | 0.4% | 88.8 |  | 1.2% | (37.7) |  | (42.5)% |
| Cost of services | 10,470.0 |  |  | 6,408.2 |  |  | 4,061.8 |  | 63.4% |
| Selling, general and administrative expenses | 433.5 |  | 3.4% | 288.3 |  | 3.7% | 145.2 |  | 50.4% |
| Depreciation and amortization | 333.2 |  | 2.6% | 117.7 |  | 1.5% | 215.5 |  | 183.1% |
| Total operating expenses | 11,236.7 |  | 87.7% | 6,814.2 |  | 88.4% | 4,422.5 |  | 64.9% |
| Operating Income | $ | $1,568.7 | 12.3% | $ | $891.8 | 11.6% | $ | $676.9 | 75.9% |

We measure cost of services in two distinct categories: salary and service costs and occupancy and other costs. As a service business, salary and service costs make up a significant portion of our operating expenses and substantially all these costs comprise the essential components directly linked to the delivery of our services. Salary and service costs include employee compensation and benefits, freelance labor, third-party service costs, and third-party incidental costs. Third-party service costs include vendor costs when we act as principal in providing services to our clients. Third-party incidental costs that are required to be included in revenue primarily consist of client-related travel and incidental out-of-pocket costs that are billed back to the client directly at our cost. Occupancy and other costs consist of the indirect costs related to the delivery of our services, including office rent and other occupancy costs, equipment rent, technology costs, general office expenses and other expenses. Adverse and beneficial fluctuations in foreign currency exchange rates from period to period impact our results of operations and financial condition when we translate our financial statements from local foreign currency exchange rates to the U.S. Dollar. However, substantially all of our foreign operations transact business in their local currency, mitigating the impact of changes in foreign currency exchange rates on our operating margin percentage. As a result, the changes in our operating expenses period-over-period from foreign currency

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translation were in line with the percentage impact from changes in foreign currencies on revenue for the three and six months ended June 30, 2026.

Operating expenses for the three months ended June 30, 2026 increased $2.1 billion, or 57.7%, to $5.6 billion compared to the prior year period, primarily due to the acquisition of IPG. Included in operating expenses for the three months ended June 30, 2026 are $47.0 million ($35.3 million after-tax) of repositioning costs, primarily for severance and other repositioning costs. In addition, we incurred integration costs related to the acquisition of IPG of $40.1 million ($38.0 million after-tax), which are included in selling, general and administrative expenses (see Note 5 to the consolidated financial statements). Included in selling, general and administrative expenses for the three months ended June 30, 2025 are acquisition related costs of $66.0 million ($61.6 million after-tax) related to the Merger (see Note 1 to the consolidated financial statements). Included in operating expenses for the three months ended June 30, 2025 are $88.8 million ($67.2 million after-tax) of repositioning costs, primarily related to severance actions related to efficiency initiatives, primarily within the Omnicom Advertising Group and the Omnicom Production Group (see Note 10 to the consolidated financial statements).

Operating expenses for the six months ended June 30, 2026 increased $4.4 billion, or 64.9%, to $11.2 billion from $6.8 billion, compared to the prior year period, primarily due to the acquisition of IPG. Included in operating expenses for the six months ended June 30, 2026 are $51.1 million ($38.3 million after-tax) of repositioning costs, primarily related to severance and other repositioning costs, as well as $34.3 million ($27.8 million after-tax) of charges to reflect the businesses to be disposed at their estimated net realizable value. In addition, we incurred integration costs related to the acquisition of IPG of $99.5 million ($84.8 million after-tax) which are included in selling, general and administrative expenses (See Note 5 to the consolidated financial statements). Included in selling, general and administrative expenses for the six months ended June 30, 2025 are acquisition related costs of $99.8 million ($94.3 million after-tax) related to the Merger (see Note 1 to the consolidated financial statements). Included in operating expenses for the six months ended June 30, 2025 are $88.8 million ($67.2 million after-tax) of repositioning costs recorded in the second quarter of 2025, primarily related to severance actions related to efficiency initiatives, primarily within the Omnicom Advertising Group and the Omnicom Production Group (see Note 10 to the consolidated financial statements).

### Operating Expenses - Salary and Service Costs

Salary and service costs, which tend to fluctuate with changes in revenue, are comprised of salary and related costs, third-party service costs, and third-party incidental costs.

Salary and service costs for the three months ended June 30, 2026 increased $1.8 billion, or 60.7%, to $4.7 billion, compared to the prior-year period. Salary and related costs for the three months ended June 30, 2026 increased $1.1 billion, or 62.3%, to $3.0 billion, primarily due to our acquisition of IPG. As a percentage of revenue, salary and related costs were relatively flat compared to the prior year period. We expect these costs to be in-line as a percentage of revenue year-over-year as we realize operational efficiencies and advance the integration of our operations with IPG. Third-party service costs for the three months ended June 30, 2026 increased $604.0 million, or 65.8%, to $1.5 billion, primarily as a result of the IPG acquisition, as well as constant currency growth in our Integrated Media discipline. Third-party incidental costs for the three months ended June 30, 2026 increased $37.9 million, or 20.3%, to $224.3 million, primarily due to revenue growth and our acquisition of IPG.

Salary and service costs for the six months ended June 30, 2026 increased $3.7 billion, or 64.7%, to $9.4 billion, compared to the prior-year period. Salary and related costs for the six months ended June 30, 2026 increased $2.4 billion, or 67.1%, to $6.0 billion, primarily due to our acquisition of IPG. As a percentage of revenue, salary and related costs were relatively flat compared to the prior year period. We expect these costs to be in-line as a percentage of revenue year-over-year as we realize operational efficiencies and advance the integration of our operations with IPG. Third-party service costs for the six months ended June 30, 2026 increased $1.2 billion, or 68.4%, to $2.9 billion, primarily as a result of the IPG acquisition, as well as constant currency growth in our Integrated Media discipline. Third-party incidental costs for the six months ended June 30, 2026 increased $81.2 million, or 22.8%, to $436.6 million, primarily due to revenue growth and our acquisition of IPG.

### Operating Expenses - Occupancy and Other Costs

Occupancy and other costs for the three and six months ended June 30, 2026, which are less directly linked to changes in revenue than salary and service costs, increased by $178.5 million, or 54.8%, to $504.4 million and increased by $391.2 million, or 61.1%, to $1.0 billion, respectively, primarily due to the additional real estate footprint from the IPG acquisition. As a percentage of revenue, occupancy and other costs were relatively flat compared to the prior year period.

### Operating Expenses - Selling, General & Administrative ("SG&A") Expenses

SG&A expenses primarily consist of third-party marketing costs, professional fees, compensation and benefits and occupancy and other costs of our corporate and executive offices, including group-wide finance and accounting, treasury, legal and governance, human resource oversight and similar costs.

SG&A expenses increased by $38.6 million and $145.2 million for the three and six months ended June 30, 2026, respectively, compared to the same periods in 2025, primarily due to the acquisition of IPG. SG&A expenses included integration and acquisition-related costs of $40.1 million ($38.0 million after-tax) and acquisition-related costs of $66.0 million ($61.6 million after-tax) for the three months ended June 30, 2026 and June 30, 2025, respectively. SG&A expenses included integration and

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acquisition-related costs of $99.5 million ($84.8 million after-tax) and acquisition-related costs of $99.8 million ($94.3 million after-tax) for the six months ended June 30, 2026 and June 30, 2025, respectively (see Note 1 of the unaudited consolidated financial statements).

### Operating Income

Operating income for the three months ended June 30, 2026 increased $483.3 million to $922.5 million, and operating margin increased to 14.1% from 10.9% compared to the same period in 2025 due to factors discussed above. Amortization expense for the three months ended June 30, 2026 increased by $97.9 million to $117.7 million, primarily related to the Merger, which decreased operating income and margin. EBITA for the three months ended June 30, 2026 increased $581.2 million to $1,040.2 million, and EBITA margin increased to 15.9% from 11.4%. Integration and acquisition related costs related to the Merger and severance and other repositioning costs recorded in the second quarter of 2026 (see Notes 1 and 10 to the consolidated financial statements) reduced both operating income and EBITA by $87.1 million, and reduced both operating margin and EBITA margin by 1.3%. Acquisition related costs and repositioning costs recorded in the second quarter of 2025 reduced both operating income and EBITA by $154.8 million, and reduced both operating margin and EBITA margin by 3.9%. The effect on EBITA margin for assets held for sale or disposition for the three months ended June 30, 2026 and 2025 was 0.6% and 0.5%, respectively.

Operating income for the six months ended June 30, 2026 increased $676.9 million to $1.6 billion, and operating margin increased to 12.3% from 11.6% compared to the same period in 2025 due to factors discussed above. Amortization expense for the six months ended June 30, 2026 increased by $193.5 million to $235.1 million, primarily related to the Merger, which decreased operating income and operating income margin. EBITA for the six months ended June 30, 2026 increased $870.4 million to $1.8 billion, and EBITA margin increased to 14.1% from 12.1%. Integration and acquisition related costs related to the Merger, severance and other repositioning costs recorded and charges to reflect the businesses to be disposed at their estimated net realizable value (see Notes 1 and 10 to the consolidated financial statements) reduced both operating income and EBITA by $184.9 million, and reduced both operating margin and EBITA margin by 1.4%. Acquisition related costs in the first half of 2025 and repositioning costs recorded in the second quarter of 2025 (see Notes 1 and 10 to the consolidated financial statements) reduced both operating income and EBITA by $188.6 million, and reduced operating margin by 2.4% and EBITA margin by 2.5% for the six -month period. The effect on EBITA margin for assets held for sale or disposition for the six months ended June 30, 2026 and 2025 was 0.9% and 0.7%, respectively.

### Net Interest Expense

Net interest expense for the three months ended June 30, 2026 increased $52.6 million period-over-period to $93.3 million. Interest expense on debt for the three months ended June 30, 2026 increased $61.3 million period-over-period to $120.1 million, due to higher average long-term debt balances resulting primarily from the assumption of IPG’s long-term debt following the Merger, as well as refinancing activities completed during the first quarter of 2026, which resulted in approximately $1 billion of incremental long-term debt. Interest income in the three months ended June 30, 2026 increased $8.0 million to $29.9 million, primarily due to higher average cash balances.

Net interest expense for the six months ended June 30, 2026 increased $95.2 million period-over-period to $165.3 million. Interest expense on debt for the six months ended June 30, 2026 increased $119.0 million period-over-period to $233.9 million, due to higher average long-term debt balances resulting primarily from the assumption of IPG’s long-term debt following the Merger, as well as refinancing activities completed during the first quarter of 2026, which resulted in approximately $1 billion of incremental long-term debt. Interest income in the six months ended June 30, 2026 increased $25.3 million to $76.9 million, primarily due to higher average cash balances.

### Income Taxes

Our effective tax rate for the six months ended June 30, 2026 decreased period-over-period to 27.0% from 29.4%, primarily due to the non-deductibility of certain integration and acquisition related costs in connection with the Merger that negatively impacted the effective tax rate in 2025. The effective tax rates for 2026 and 2025 reflect the impact of the lower tax benefit associated with severance and repositioning charges and IPG acquisition related costs.

On July 4, 2025, the One Big Beautiful Bill Act was signed into law in the United States, which contains a broad range of tax reform provisions affecting businesses. The legislation does not have a material impact on our financial statements.

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### Net Income and Net Income Per Share - Omnicom Group Inc.

Net income - Omnicom Group Inc. in the three months ended June 30, 2026 increased $327.2 million to $584.8 million from $257.6 million. The period-over-period increase is due to the Merger and the factors described above. Diluted net income per share - Omnicom Group Inc. increased to $2.08 in the three months ended June 30, 2026, from $1.31 in the three months ended June 30, 2025, based on the factors described above. This was impacted by the increase in our weighted average shares of common stock outstanding due to the issuance of shares for the IPG acquisition, partially offset by net share repurchases, including shares purchased pursuant to the accelerated stock repurchase agreement. For the three months ended June 30, 2026, the impact of integration and acquisition related costs and severance and other repositioning costs (see Notes 1 and 10 to the unaudited consolidated financial statements) reduced net income - Omnicom Group Inc. by $73.3 million and diluted net income per share - Omnicom Group Inc. by $0.26. For the three months ended June 30, 2025, acquisition related costs and repositioning costs reduced net income - Omnicom Group Inc. by $128.8 million and diluted net income per share - Omnicom Group Inc. by $0.66.

Net income - Omnicom Group Inc. in the six months ended June 30, 2026 increased $444.7 million to $990.0 million from $545.3 million. The period-over-period increase is due to the factors described above. Diluted net income per share - Omnicom Group Inc. increased to $3.41 in the six months ended June 30, 2026, from $2.77 in the six months ended June 30, 2025, based on the factors described above. This was impacted by the increase in our weighted average shares of common stock outstanding due to the issuance of shares for the IPG acquisition, partially offset by net share repurchases, including shares purchased pursuant to the accelerated stock repurchase agreement. For the six months ended June 30, 2026, the impact of integration and acquisition related costs, severance and other repositioning costs and charges to reflect the businesses to be disposed at their estimated net realizable value (see Notes 1 and 10 to the unaudited consolidated financial statements) reduced net income - Omnicom Group Inc. by $150.9 million and diluted net income per share - Omnicom Group Inc. by $0.52. For the six months ended June 30, 2025, the net impact of acquisition related costs and repositioning costs reduced net income - Omnicom Group Inc. by $161.5 million and diluted net income per share - Omnicom Group Inc. by $0.82.

The effect of after-tax amortization, principally from acquired intangible assets and internally developed strategic platform assets, decreased diluted net income per share by $0.31 and $0.08 for the three months ended June 30, 2026 and 2025, respectively, and $0.60 and $0.15 for the six months ended June 30, 2026 and 2025, respectively.

### NON-GAAP FINANCIAL MEASURES

We use certain non-GAAP financial measures in describing our performance. We use EBITA and EBITA Margin as additional operating performance measures, which excludes from operating income the non-cash amortization expense of acquired intangible assets and internally developed strategic platform assets. We believe EBITA and EBITA Margin are useful measures for investors to evaluate the performance of our business and allows for comparability between the periods presented. We also use constant currency growth as an additional operating performance measure. Non-GAAP financial measures should not be considered in isolation from, or as a substitute for, financial information presented in compliance with U.S. GAAP. Non-GAAP financial measures reported by us may not be comparable to similarly titled amounts reported by other companies.

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### Reconciliation of Non-GAAP Financial Measures

The following table reconciles the U.S. GAAP financial measure of Net Income - Omnicom Group Inc. to EBITA and EBITA Margin:

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 | Six Months Ended June 30, 2026 | Six Months Ended June 30, 2025 |
| --- | --- | --- | --- | --- |
| Net Income - Omnicom Group Inc. | $584.8 | $257.6 | $990.0 | $545.3 |
| Net Income Attributed To Noncontrolling Interests | 20.7 | 20.2 | 34.2 | 35.9 |
| Net Income | 605.5 | 277.8 | 1,024.2 | 581.2 |
| Income (Loss) From Equity Method Investments | 1.1 | (0.2) | 0.2 | 0.7 |
| Income Tax Expense | 224.8 | 120.5 | 379.4 | 241.2 |
| Income Before Income Taxes and Income (Loss) From Equity Method Investments | 829.2 | 398.5 | 1,403.4 | 821.7 |
| Interest Expense | 123.2 | 62.6 | 242.2 | 121.7 |
| Interest Income | 29.9 | 21.9 | 76.9 | 51.6 |
| Operating Income | 922.5 | 439.2 | 1,568.7 | 891.8 |
| Add back: Amortization principally from acquired intangible assets and internally developed strategic platform assets | 117.7 | 19.8 | 235.1 | 41.6 |
| EBITA | $1,040.2 | $459.0 | $1,803.8 | $933.4 |
| Revenue | $6,562.5 | $4,015.6 | $12,805.4 | $7,706.0 |
| EBITA | $1,040.2 | $459.0 | $1,803.8 | $933.4 |
| EBITA Margin | 15.9% | 11.4% | 14.1% | 12.1% |

### LIQUIDITY AND CAPITAL RESOURCES

### Cash Sources and Requirements

The primary sources of our short-term liquidity are net cash provided by operating activities and cash and cash equivalents. Additional liquidity sources include our $3.5 billion unsecured multi-currency revolving Credit Facility, terminating on November 26, 2030, the ability to issue up to $3 billion of U.S. Dollar denominated commercial paper and issue up to the equivalent of $500 million in British Pounds or Euro under a Euro commercial paper program, and access to the capital markets. In addition, certain of our subsidiaries have uncommitted credit lines that are guaranteed by Omnicom, aggregating $0.9 billion. Our liquidity sources fund our non-discretionary cash requirements and our discretionary spending.

Working capital, which we define as current assets minus current liabilities, is our principal non-discretionary funding requirement. Our working capital cycle typically peaks during the second quarter of the year due to the timing of payments for incentive compensation, income taxes and contingent purchase price obligations. In addition, we have contractual obligations related to our long-term debt (principal and interest payments), recurring business operations, primarily related to lease obligations, and acquisition-related obligations. Our principal discretionary cash spending includes dividend payments to common shareholders, capital expenditures, strategic acquisitions and repurchases of our common stock.

Cash and cash equivalents decreased $3.5 billion from December 31, 2025. During the first six months of 2026, we used $932.4 million of cash in operating activities, which included the use for operating capital of $2.4 billion, primarily related to our typical working capital cycle. Discretionary spending for the first six months of 2026 was $3.6 billion, compared to $641.6 million for the first six months of 2025. Discretionary spending for the first six months of 2026 was comprised of capital expenditures of $115.1 million, dividends paid to common shareholders of $481.5 million, dividends paid to shareholders of noncontrolling interests of $33.5 million, repurchases of our common stock, including shares purchased pursuant to the accelerated stock repurchase program, of $2,962.3 million, net of proceeds from vesting of restricted stock awards and related tax benefits. The acquisition of additional shares of noncontrolling interests and payment of contingent purchase price obligations was $45.4 million. Based on past performance and current expectations, we believe that net cash provided by operating activities and cash and cash equivalents will be sufficient to meet our non-discretionary cash requirements for the next twelve months. In addition, and over the longer term, our Credit Facility and access to capital markets are available to fund our working capital, contractual obligations and discretionary spending, including share repurchases.

### Cash Management

Our regional treasury centers in North America, Europe and Asia manage our cash and liquidity. Each day, operations with excess funds invest those funds with their regional treasury center. Likewise, operations that require funds borrow from their

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regional treasury center. Treasury centers with excess cash invest on a short-term basis with third parties, with maturities generally ranging from overnight to 90 days. Certain treasury centers have notional pooling arrangements that are used to manage their cash and set-off foreign exchange imbalances. These arrangements require each treasury center to have its own notional pool account and to maintain a positive notional balance. Additionally, under the terms of the arrangement, set-off of foreign exchange positions are limited to the long and short positions within their own account. We may also use multi-entity notional cash pooling arrangements with banks instead of treasury centers to manage our liquidity requirements. In these pooling arrangements, certain legal entities agree with a single bank that the cash balances of any of the entities with the bank will be subject to a full right of set-off against amounts other entities owe the bank, and the bank provides for overdrafts as long as the net balance for all entities does not exceed an agreed-upon level. To the extent that our treasury centers require liquidity, they can issue up to a total of $3.0 billion of U.S. Dollar-denominated commercial paper, issue up to the equivalent of $500 million in British Pounds or Euro under a Euro commercial paper program, or borrow under the Credit Facility, or the uncommitted credit lines. This process enables us to manage our debt more efficiently and utilize our cash more effectively, as well as manage our risk to foreign exchange rate imbalances. In countries where we either do not conduct treasury operations or it is not feasible for one of our treasury centers to fund net borrowing requirements on an intercompany basis, we arrange for local currency uncommitted credit lines. We have a policy governing counterparty credit risk with financial institutions that hold our cash and cash equivalents, and we have deposit limits for each institution. In countries where we conduct treasury operations, generally the counterparties are either branches or subsidiaries of institutions that are party to the Credit Facility. These institutions generally have credit ratings better than or equal to our credit ratings.

At June 30, 2026, our foreign subsidiaries held approximately $2.1 billion of our total cash and cash equivalents of $3.3 billion. Substantially all of the cash is available to us, net of any foreign withholding taxes payable upon repatriation to the United States.

As of June 30, 2026, our net debt position, which we define as total debt, including short-term debt, less cash and cash equivalents, increased $4.4 billion to $6.7 billion from December 31, 2025. The increase in net debt primarily resulted from the issuance of our $400 million aggregate principal amount of 4.200% Senior Notes due 2029, $700 million aggregate principal amount of 5.000% Senior Notes due 2033 and $600 million aggregate principal amount of 5.300% Senior Notes due 2036, as well as the issuance of our €600 million aggregate principal amount of 3.850% Senior Notes due 2034. We used some of the proceeds to pay down our $1.4 billion 3.600% Senior Notes due 2026. Net debt was also impacted by the use of cash of $932.4 million for operating activities, which included the use for operating capital of $2.4 billion, primarily related to our typical working capital requirements during the period and other non-discretionary and discretionary spending of $3.6 billion, as discussed above.

Net debt:

| Line item | June 30, 2026 | December 31, 2025 | June 30, 2025 |
| --- | --- | --- | --- |
| Short-term debt | $48.8 | $62.0 | $22.3 |
| Long-term debt, including current portion | 9,953.2 | 9,054.5 | 6,282.7 |
| Total debt | 10,002.0 | 9,116.5 | 6,305.0 |
| Less: Cash and cash equivalents | 3,336.2 | 6,881.1 | 3,300.4 |
| Net debt | $6,665.8 | $2,235.4 | $3,004.6 |

Net debt is a Non-GAAP liquidity measure. This presentation, together with the comparable U.S. GAAP liquidity measures, reflects one of the key metrics used by us to assess our cash management. Non-GAAP liquidity measures should not be considered in isolation from, or as a substitute for, financial information presented in compliance with U.S. GAAP. Non-GAAP liquidity measures as reported by us may not be comparable to similarly titled amounts reported by other companies.

### Debt Instruments and Related Covenants

On March 2, 2026, Omnicom closed its public offering of $400 million aggregate principal amount of 4.200% Senior Notes due 2029, $700 million aggregate principal amount of 5.000% Senior Notes due 2033 and $600 million aggregate principal amount of 5.300% Senior Notes due 2036. In addition, on March 2, 2026, OFH, a U.K.-based wholly owned subsidiary of Omnicom, closed its public offering of €600 million aggregate principal amount of 3.850% Senior Notes due 2034, which notes are fully and unconditionally guaranteed by Omnicom. Omnicom used a portion of the net proceeds to repay its $1.4 billion 3.600% Senior Notes due 2026, which were fully redeemed at par on March 13, 2026. Omnicom intends to use the remaining proceeds for general corporate purposes.

Omnicom has fully and unconditionally guaranteed the obligations of OFH with respect to the Euro Notes. OFH’s assets consist of its investments in several wholly owned finance companies that function as treasury centers, providing funding for various operating companies in Europe, Australia, and other countries in the Asia-Pacific region. The finance companies’ assets consist of cash and cash equivalents and intercompany loans that they make or have made to the operating companies in their respective regions and the related interest receivable. There are no restrictions on the ability of Omnicom or OFH to obtain funds from their subsidiaries through dividends, loans, or advances. The Euro Notes and the related guarantees are senior unsecured

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obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness of OFH and Omnicom, respectively.

Omnicom has fully and unconditionally guaranteed the obligations of OCH, a U.K.-based wholly owned subsidiary of Omnicom, with respect to the Sterling Notes. OCH’s assets consist of its investments in several wholly owned finance companies that function as treasury centers, providing funding for various operating companies in EMEA, Australia, and other countries in the Asia-Pacific region. The finance companies’ assets consist of cash and cash equivalents and intercompany loans that they make or have made to the operating companies in their respective regions and the related interest receivable. There are no restrictions on the ability of Omnicom or OCH to obtain funds from their subsidiaries through dividends, loans, or advances. The Sterling Notes and the related guarantee are senior unsecured obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness of OCH and Omnicom, respectively.

The Credit Facility has a financial covenant that requires us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA (earnings before interest, taxes, depreciation, amortization and non-cash charges) of no more than 3.5 times for the most recently ended 12-month period. At June 30, 2026, we were in compliance with this covenant as our Leverage Ratio, computed in accordance with the terms of the facility, was 2.4 times. The Credit Facility does not limit our ability to declare or pay dividends or repurchase our common stock.

At June 30, 2026, our long-term and short-term debt was rated BBB+ and A2 by S&P and Baa1 and P2 by Moody’s. Our access to the commercial paper market and the cost of any issuances are affected by market conditions and our credit ratings. The long-term debt indentures and the Credit Facility do not contain provisions that require acceleration of cash payments in the event of a downgrade in our credit ratings.

### Credit Markets and Availability of Credit

In light of the uncertainty of future economic conditions, we will continue to take actions available to us to respond to changing economic conditions, and we will manage our discretionary expenditures. We will also continue to monitor and manage the level of credit made available to our clients. We believe that these actions, in addition to the availability of our Credit Facility, are sufficient to fund our near-term working capital needs and our discretionary spending. Information regarding our Credit Facility is provided in Note 6 to the unaudited consolidated financial statements.

We have the ability to fund our day-to-day liquidity, including working capital, by issuing commercial paper or borrowing under the Credit Facility. During the three months and six months ended June 30, 2026, there were no drawings under the Credit Facility and no commercial paper issuances outstanding at quarter-end; however, commercial paper was issued and repaid during the period as described below. There were no draws under the Credit Facility or commercial paper issuances during the three and six months ended June 30, 2025.

Commercial paper activity was (dollars in millions):

| Line item | Three Months Ended June 30, 2026 | Three Months Ended June 30, 2025 |
| --- | --- | --- |
| Average amount outstanding during the quarter | $34.0 | — |
| Maximum amount outstanding during the quarter | 230.0 | — |
| Amount outstanding at the end of the quarter | — | — |
| Weighted average maturity days | 7.3 | — |
| Weighted average interest rate | 3.95% | — |
|  | Six Months Ended June 30, |  |
|  | 2026 | 2025 |
| Average amount outstanding during the period | $147.3 | — |
| Maximum amount outstanding during the period | 632.6 | — |
| Amount outstanding at the end of the quarter | — | — |
| Weighted average maturity days | 21.2 | — |
| Weighted average interest rate | 3.90% | — |

We may issue commercial paper to fund our day-to-day liquidity when needed. However, disruptions in the credit markets may lead to periods of illiquidity in the commercial paper market and higher credit spreads. To mitigate any disruption in the credit markets and to fund our liquidity, we may borrow under the Credit Facility, or the uncommitted credit lines or access the capital markets if favorable conditions exist. We will continue to monitor closely our liquidity and conditions in the credit markets. We

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cannot predict with any certainty the impact on us of any disruptions in the credit markets. In such circumstances, we may need to obtain additional financing to fund our day-to-day working capital requirements. Such additional financing may not be available on favorable terms, or at all.

### Credit Risk

We provide marketing and communications services to several thousand clients that operate in nearly every sector of the global economy, and we grant credit to qualified clients in the normal course of business. Due to the diversified nature of our client base, we do not believe that we are exposed to a concentration of credit risk, as our largest client represented 2.0% of revenue for the twelve months ended June 30, 2026. However, during periods of economic downturn, the credit profiles of our clients could change.

In the normal course of business, our agencies enter into contractual commitments with media providers and production companies on behalf of our clients at levels that can substantially exceed the revenue from our services. These commitments are included in accounts payable when the services are delivered by the media providers or production companies. If permitted by local law and the client agreement, many of our agencies purchase media and production services for our clients as an agent for a disclosed principal. In addition, while operating practices vary by country, media type and media vendor, in the United States and certain foreign markets, many of our agencies’ contracts with media and production providers specify that our agencies are not liable to the media and production providers under the theory of sequential liability until and to the extent we have been paid by our client for the media or production services.

Where purchases of media and production services are made by our agencies as a principal or are not subject to the theory of sequential liability, the risk of a material loss as a result of payment default by our clients could increase significantly, and such a loss could have a material adverse effect on our business, results of operations and financial condition.

While we use various methods to manage the risk of payment default, including obtaining credit insurance, requiring payment in advance, mitigating the potential loss in the marketplace or negotiating with media providers, these may be insufficient, less available, or unavailable during a severe economic downturn.

### CRITICAL ACCOUNTING ESTIMATES

For a more complete understanding of our accounting estimates and policies, the unaudited consolidated financial statements and the related Management’s Discussion and Analysis of Financial Condition and Results of Operations, readers are encouraged to consider this information together with our discussion of our critical accounting policies under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our 2025 10-K.

### Acquisitions and Goodwill

In addition to the IPG acquisition, we have made and expect to continue to make selective acquisitions. The evaluation of potential acquisitions is based on various factors, including specialized know-how, reputation, geographic coverage, competitive position and service offerings of the target businesses, as well as our experience and judgment.

Our acquisition strategy is focused on acquiring the expertise of an assembled workforce in order to continue to build upon the core capabilities of our various strategic business platforms and agency brands through the expansion of their geographic reach or their service capabilities to better serve our clients. Additional key factors we consider include the competitive position and specialized know-how of the acquisition targets. Accordingly, as is typical in most service businesses, a substantial portion of the assets we acquire are intangible assets, primarily consisting of the know-how of the personnel, which is treated as part of goodwill and is not required to be valued separately under U.S. GAAP. For each acquisition, we undertake a detailed review to identify other intangible assets that are required to be valued separately. A significant portion of the identifiable intangible assets acquired is derived from customer relationships, including the related customer contracts, as well as trade names. In valuing these identified intangible assets, we typically use an income approach and consider comparable market participant measurements.

We evaluate goodwill for impairment annually at May 1 each year and whenever events or circumstances indicate the carrying value may not be recoverable. Under the Financial Accounting Standard Board's ("FASB") ASC Topic 350, Intangibles - Goodwill and Other, we have the option of either assessing qualitative factors to determine whether it is more-likely-than-not that the carrying value of our reporting units exceeds their respective fair value (Step 0) or proceeding directly to the quantitative goodwill impairment test. While there were no trigger events that required us to perform a quantitative test, we performed the annual quantitative impairment test and compared the fair value of each of our reporting units to its respective carrying value, including goodwill. Beginning in December of 2025, we integrated the newly acquired IPG businesses into our existing networks. We identified our regional reporting units as components of our operating segments, which are our four global agency networks. The regional reporting units and connected capabilities monitor performance and are responsible for the agencies in their region. They report to the segment managers and facilitate the administrative and logistical requirements of our key client matrix organization structure for delivering services to clients in their regions. We have concluded that for each of our operating segments, their regional reporting units have similar economic characteristics and should be aggregated for purposes of testing goodwill for impairment at the operating segment level. Our conclusion was based on a detailed analysis of the aggregation criteria set forth in FASB ASC Topic 280, Segment Reporting, and in FASB ASC Topic 350. Consistent with our fundamental business strategy, the

33

agencies within our regional reporting units serve similar clients in similar industries, and in many cases the same clients. In addition, the agencies within our regional reporting units have similar economic characteristics, and the employees share similar skill sets. The main economic components of each agency are employee compensation and related costs, and direct service costs and occupancy and other costs, which include rent and occupancy costs, technology costs that are generally limited to personal computers, servers and off-the-shelf software and other overhead expenses. Finally, the expected benefits of our acquisitions are typically shared by multiple agencies in various regions as they work together to integrate the acquired agency into our virtual client network strategy.

### Goodwill Impairment Review - Estimates and Assumptions

We use the following valuation methodologies to determine the fair value of our reporting units: (1) the income approach, which utilizes discounted expected future cash flows, (2) comparative market participant multiples for EBITDA (earnings before interest, taxes, depreciation and amortization) and, (3) when available, consideration of recent and similar acquisition transactions.

In applying the income approach, we use estimates to derive the discounted expected cash flows, ("DCF"), for each reporting unit that serves as the basis of our valuation. These estimates and assumptions include revenue growth and operating margin, EBITDA, tax rates, capital expenditures, weighted average cost of capital and related discount rates and expected long-term cash flow growth rates. All of these estimates and assumptions are affected by conditions specific to our businesses, economic conditions related to the industry we operate in, as well as conditions in the global economy. The assumptions that have the most significant effect on our valuations derived using a DCF methodology are: (1) the expected long-term growth rate of our reporting units' cash flows and (2) the weighted average cost of capital ("WACC"), for each reporting unit.

The long-term growth rate and WACC assumptions used in our evaluations:

| Line item | May 1, 2026 | May 1, 2025 |
| --- | --- | --- |
| Long-Term Growth Rate | 3.5% | 3.5% |
| WACC | 13.8% - 14.2% | 12.5% - 12.8% |

Long-term growth rate represents our estimate of the long-term growth rate for our industry and the geographic markets we operate in. For the past 10 years, the average historical revenue growth rate of our reporting units and the Average Nominal GDP, or NGDP, growth of the countries comprising the major markets that account for substantially all of our revenue was approximately 3.5% and 5.0%, respectively. We considered this history when determining the long-term growth rates used in our annual impairment test at May 1, 2026. Included in the 10-year history is the full year 2020 that reflected the negative impact of the COVID-19 pandemic on the global economy and our revenue. We believe marketing expenditures over the long term have a high correlation to NGDP, notwithstanding the volatility of inflationary environments. Based on our past performance, we also believe that our growth rate can exceed NGDP growth in the short-term in the markets we operate in, which are similar across our reporting units. Accordingly, for our annual test as of May 1, 2026, we used an estimated long-term growth rate of 3.5%.

When performing the annual impairment test as of May 1, 2026 and estimating the future cash flows of our reporting units, we considered the current macroeconomic environment, as well as industry and market specific conditions in 2026. There were no events through June 30, 2026 that would change our impairment assessments.

The WACC is comprised of: (1) a risk-free rate of return, (2) a business risk index ascribed to us and to companies in our industry comparable to our reporting units based on a market derived variable that measures the volatility of the share price of equity securities relative to the volatility of the overall equity market, (3) an equity risk premium that is based on the rate of return on equity of publicly traded companies with business characteristics comparable to our reporting units, and (4) a current after-tax market rate of return on debt of companies with business characteristics similar to our reporting units, each weighted by the relative market value percentages of our equity and debt.

Our four reporting units vary in size with respect to revenue and the amount of debt allocated to them. These differences drive variations in fair value among our reporting units. In addition, these differences as well as differences in book value, including goodwill, cause variations in the amount by which fair value exceeds book value among the reporting units. The goodwill balances and debt vary by reporting unit primarily because some legacy agency networks were acquired at the formation of Omnicom and were accounted for as a pooling of interests that did not result in any additional debt or goodwill being recorded. The remaining agency networks were built through a combination of internal growth and acquisitions that were accounted for using the acquisition method and as a result, they have a relatively higher amount of goodwill and debt. Finally, the allocation of goodwill when components are transferred between reporting units is based on relative fair value at the time of transfer.

### Goodwill Impairment Review - Conclusion

Based on the results of our impairment test, we concluded that our goodwill as of May 1, 2026 was not impaired, because the fair value of each of our reporting units was in excess of its respective net book value. The minimum decline in fair value that one of our reporting units would need to experience in order to fail the goodwill impairment test was approximately 37%. Notwithstanding our belief that the assumptions we used for WACC and long-term growth rate in our impairment testing were reasonable, we performed a sensitivity analysis for each reporting unit. The results of this sensitivity analysis on our impairment test as of May 1, 2026 revealed that if the WACC increased by 1% and/or the long-term growth rate decreased by 1%, the fair

34

value of each of our reporting units would continue to be in excess of its respective net book value and would pass the impairment test.

We will continue to perform our impairment test at May 1 each year, unless events or circumstances trigger the need for an interim impairment test. The estimates used in our goodwill impairment test do not constitute forecasts or projections of future results of operations, but rather are estimates and assumptions based on historical results and assessments of macroeconomic factors affecting our reporting units as of the valuation date. We believe that our estimates and assumptions are reasonable, but they are subject to change from period to period. Actual results of operations and other factors will likely differ from the estimates used in our discounted cash flow valuation, and it is possible that differences could be significant. A change in the estimates we use could result in a decline in the estimated fair value of one or more of our reporting units from the amounts derived as of our latest valuation and could cause us to fail our goodwill impairment test if the estimated fair value for the reporting unit is less than the carrying value of the net assets of the reporting unit, including its goodwill. A large decline in estimated fair value of a reporting unit could result in a non-cash impairment charge and may have an adverse effect on our results of operations and financial condition.

## ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We manage our exposure to foreign exchange rate risk and interest rate risk through various strategies, including the use of derivative financial instruments. We use forward foreign exchange contracts as economic hedges to manage the cash flow volatility arising from foreign exchange rate fluctuations. We use net investment hedges to manage the volatility of foreign exchange rates on the investment in our foreign subsidiaries. We do not use derivatives for trading or speculative purposes. Using derivatives exposes us to the credit risk that counterparties to the derivative contracts will fail to meet their contractual obligations. We manage that risk through careful selection and ongoing evaluation of the counterparty financial institutions based on specific minimum credit standards and other factors. Our 2025 10-K provides a detailed discussion of the market risks affecting our operations. No material change has occurred in our market risks since the disclosure contained in our 2025 10-K. Note 15 to the unaudited consolidated financial statements provides a discussion of our foreign currency derivatives and cross currency swaps as of June 30, 2026.

## ITEM 4. CONTROLS AND PROCEDURES

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in reports we file with the SEC is recorded, processed, summarized and reported within applicable time periods. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports we file or submit under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), is accumulated and communicated to management, including our Chief Executive Officer, ("CEO"), and Chief Financial Officer, ("CFO"), as appropriate to allow timely decisions regarding required disclosure. Management, including our CEO and CFO, conducted an evaluation of the effectiveness of our disclosure controls and procedures as of June 30, 2026. Based on that evaluation, our CEO and CFO concluded that, as of June 30, 2026, our disclosure controls and procedures are effective to ensure that decisions can be made timely with respect to required disclosures, as well as ensuring that the recording, processing, summarization and reporting of information required to be included in our Quarterly Report on Form 10-Q for the quarter ended June 30, 2026 are appropriate.

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Management, with the participation of our CEO, CFO and our agencies, conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on that evaluation, our CEO and CFO concluded that our internal control over financial reporting was effective as of June 30, 2026. There have not been any changes in our internal control over financial reporting during our most recent fiscal quarter that have materially affected or are reasonably likely to materially affect our internal control over financial reporting.

KPMG LLP, an independent registered public accounting firm that audited our consolidated financial statements included in our 2025 Form 10-K, has issued an attestation report on Omnicom’s internal control over financial reporting as of December 31, 2025, dated February 20, 2026.

### PART II. OTHER INFORMATION

## Item 1. Legal Proceedings

In the ordinary course of business, we are involved in various legal proceedings. We do not presently expect that these proceedings will have a material adverse effect on our results of operations or financial position.

## Item 1A. Risk Factors

There have been no material changes to the risk factors disclosed in Item 1A in our 2025 10-K.

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## Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Common stock repurchases during the three months ended June 30, 2026:

| Period / April 1 - April 30, 2026 | Total Number of Shares Purchased / — | Average Price Paid Per Share / $ | Average Price Paid Per Share / — | Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs1 / — | Approximate Dollar Value (in Millions) of Shares that May Yet Be Purchased Under the Plans or Programs / — |
| --- | --- | --- | --- | --- | --- |
| May 1 - May 31, 2026 | 7,510,040 | 76.95 |  | 7,455,580 | 2,500 |
| June 1 - June 30, 2026 | 2,761,846 | 74.78 |  | 2,675,226 | 2,300 |
| Total | 10,271,886 | $ | $76.36 | 10,130,806 |  |

1) On February 18, 2026, Omnicom announced that its Board of Directors had approved a share repurchase program to repurchase up to $5.0 billion of the Company's common stock as part of the Company's capital allocation strategy. Pursuant to this authorization, we also entered into an accelerated share repurchase program to repurchase approximately $2.5 billion of our common stock. Under the share repurchase program, repurchases can be made from time to time using a variety of methods, which may include open market purchases, privately negotiated transactions or otherwise, all in accordance with applicable SEC and other legal requirements. The specific timing, price and size of purchases will depend on prevailing stock prices, general economic and market conditions, and other considerations.

During the three months ended June 30, 2026, we purchased 10,130,806 shares under the accelerated share repurchase program and under a plan meeting the requirements of Rule 10b5-1 under the Exchange Act, Additionally, we withheld 141,080 shares from employees to satisfy estimated statutory income tax obligations related to vesting of restricted stock awards and stock option exercises. The value of the common stock withheld was based on the closing price of our common stock on the applicable vesting or exercise date. There were no unregistered sales of equity securities during the three months ended June 30, 2026.

## Item 5. Other Information

During the quarter ended June 30, 2026, none of our directors or officers adopted, modified, or terminated a Rule 10b5-1 trading arrangement, or a non-Rule 10b5-1 trading arrangement, in each case as defined in Item 408 of Regulation S-K.

## Item 6. Exhibits

|  |  |
| --- | --- |
| 10.1 | Omnicom Second Amended and Restated Employee Stock Purchase Plan. |
| 31.1 | Certification of the Chairman and Chief Executive Officer required by Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended. |
| 31.2 | Certification of the Executive Vice President and Chief Financial Officer required by Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended. |
| 32 | Certification of the Chairman and Chief Executive Officer and the Executive Vice President and Chief Financial Officer required by Rule 13a-14(b) under the Securities Exchange Act of 1934, as amended, and 18 U.S.C. Section 1350. |
| 101.INS | Inline XBRL Instance Document (the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document) |
| 101.SCH | Inline XBRL Taxonomy Extension Schema Document |
| 101.CAL | Inline XBRL Taxonomy Extension Calculation Linkbase Document |
| 101.DEF | Inline XBRL Taxonomy Extension Definition Linkbase Document |
| 101.LAB | Inline XBRL Taxonomy Extension Label Linkbase Document |
| 101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase Document |
| 104 | Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101) |

### SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

OMNICOM GROUP INC.

Date: July 29, 2026 /s/ PHILIP J. ANGELASTRO

Philip J. Angelastro   Executive Vice President and Chief Financial Officer (Principal Financial Officer and Authorized Signatory)

36

---

## EX-10.1

SEC source: [a2026q2exhibit101.htm](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit101.htm)

EXHIBIT 10.1

OMNICOM

SECOND AMENDED AND RESTATED EMPLOYEE STOCK PURCHASE PLAN

ARTICLE I

PURPOSE, COMMENCEMENT AND AMENDMENT

1.01 Purpose. The purpose of the Omnicom Second Amended and Restated Employee Stock Purchase Plan (as it may be amended from time to time, the “Plan”) is to provide the employees of Omnicom Group Inc., a New York Corporation (the “Company”), and its Subsidiaries with a vehicle for investing in the growth potential of the Company, to allow the Company to be competitive in attracting new employees, and to promote positive parent company recognition and visibility. The Plan is intended to qualify as an employee stock purchase plan under Section 423 of the Code and shall be interpreted and construed in accordance with such purpose.

1.02 Commencement. The Omnicom Group Inc. Employee Stock Purchase Plan (the “Initial Plan”) initially became effective on September 1, 1999 (the “Effective Date”).

1.03 Prior Amendments. The Initial Plan was previously amended, effective as of December 1, 2008, to increase the Purchase Price per share of Common Stock purchased pursuant to the Initial Plan from 85% to 95% of the Fair Market Value. The Initial Plan was amended and restated, effective May 19, 2009, with approval by the shareholders of the Company (the “Amended and Restated Plan”), to authorize an additional 10,000,000 shares of Common Stock to be purchased under the Plan, thereby increasing the maximum number of shares of Common Stock which may be purchased under the Plan to 16,000,000.

1.04 Second Amendment and Restatement. The Company hereby amends and restates the Amended and Restated Plan primarily to (a) change the definition of (i) “Committee” so that the Board of Directors may designate a Committee for purposes of administering the Plan consisting of such members as it may deem appropriate, and (ii) “Participating Employers” to remove the requirement that a Subsidiary must adopt the Plan by action of its board of directors, (b) amend the Employee eligibility requirements under Article III of the Plan, and (c) remove references to “Election Form(s)” and certain other administrative requirements.

ARTICLE II

DEFINITIONS

2.01 Definitions. As used in the Plan, the following terms and phrases shall have the following meanings:

(a)“Amended and Restated Plan” shall have the meaning set forth in Section 1.03 hereof.

(b)“Board of Directors” shall mean the Board of Directors of the Company.

(c)“Code” shall mean the Internal Revenue Code of 1986, as amended.

(d)“Commencement Date” shall mean the first day of a Plan Quarter.

(e)“Committee” shall mean the Compensation Committee of the Board of Directors, or such other committee designated by the Board of Directors for purposes of administering the Plan.

(f)“Common Stock” shall mean the common stock of the Company, par value of $0.15 per share.

(g)“Company” shall have the meaning set forth in Section 1.01 hereof.

(h)“Contribution Account” shall mean the bookkeeping account established on behalf of a Participant to which shall be credited his or her Participant Contributions.

(i)“Contribution Rate” shall be a percentage of a Participant’s Covered Compensation during each payroll period designated by each Participant to be contributed by regular payroll deductions to his or her Contribution Account as set forth in Section 3.03 hereof.

(j)“Covered Compensation” shall mean the base salary or hourly wages received by an Employee from any Participating Employer, or commissions received from any Participating Employer (in the case of an Employee who is primarily compensated on a commission-basis), before tax withholdings and other payroll deductions (such as deductions under Section 401(k) or 125 of the Code), and excluding any overtime, cash bonus compensation, fringe benefits and other irregular or special forms of compensation.

(k)“Effective Date” shall have the meaning set forth in Section 1.02 hereof.

(l)“Election Date” shall mean a date prior to the Commencement Date of each Plan Quarter determined by the Committee as the date by which its Employees must elect to participate in the Plan pursuant to Section 3.03(a) hereof.

(m)“Employee” shall mean each employee of a Participating Employer other than an Excluded Employee. For purposes of the Plan, the terms “employee”, “employment” and similar terms shall be determined in accordance with the provisions of Section 1.421 -7(h) of the Treasury Regulations (or any successor regulations).

(n)“Excluded Employee” shall mean any employee of a Participating Employer whose customary employment is 20 hours per week or less or whose customary employment is for not more than 5 months in any calendar year.

(o)“Fair Market Value” shall mean the average of the high and low price of a share of Common Stock on the date of any determination hereunder.

(p)“Initial Plan” shall have the meaning set forth in Section 1.02 hereof.

(q)“Participant” shall mean any Employee of a Participating Employer who has met the conditions and provisions for becoming a Participant set forth in Article III hereof.

(r)“Participant Contributions” shall be the aggregate dollars actually contributed by each Participant to his or her Contribution Account for a Plan Quarter.

(s)“Participating Employers” shall mean the Company and each Subsidiary that has been designated by the Committee as a Participating Employer under the Plan. A Subsidiary shall become a Participating Employer effective only upon a Commencement Date.

(t)“Plan” shall have the meaning set forth in Section 1.01 hereof.

(u)“Plan Quarter” shall mean each quarter during the term of the Plan defined for purposes hereof as September 1 through November 30, December 1 through February 28, March 1 through May 31 and June 1 through August 31.

(v)“Purchase Date” shall mean the last business day of a Plan Quarter on which the Common Stock publicly trades.

(w)“Purchase Price” shall mean the purchase price for a share of Common Stock to be paid by a Participant on a Purchase Date, as determined under Section 4.02 hereof.

(x)“Subsidiary” shall mean a subsidiary of the Company which is treated as a subsidiary corporation under Section 424(f) of the Code.

ARTICLE III

ELIGIBILITY AND PARTICIPATION

3.01 Eligibility.

(a)Each Employee shall become eligible to be a Participant of the Plan as soon as reasonably practicable after becoming an Employee; provided, however, that participation for any Plan Quarter shall be conditioned on the Employee’s timely completion and submission of his or her election to participate in the Plan, in such manner as may be provided by the Committee, not later than the Election Date for the next Plan Quarter as set forth in Section 3.03 below.

(b)In the event any person becomes an Employee on account of a stock purchase, asset purchase or similar acquisition by the Company, such Employee shall be eligible to be a Participant in the Plan in accordance with paragraph (a) above.

(c)In the event that an Excluded Employee becomes an Employee of a Participating Employer due to a change in his or her employment with a Participating Employer (as described in Section 2.01(n)), such Employee shall be eligible to participate in the Plan as soon as reasonably practicable after becoming an Employee in accordance with paragraph (a) above.

3.02 Limitations. Notwithstanding anything to the contrary contained in the Plan, no Employee shall acquire the right to purchase shares of Common Stock (i) if immediately after the Purchase Date, such Employee would own 5% or more of the total combined voting power or value of all classes of stock of the Company or any Subsidiary, taking into account in determining stock ownership any stock attributable to such Employee under Section 424(d) of the Code or (ii) which would permit such Employee to purchase stock under all employee stock purchase plans (to which Section 423 of the Code applies) of the Company and its Subsidiaries, in excess of $25,000 of the Fair Market Value of such stock (as determined as of each Purchase Date) for each calendar year, all as specified in the manner provided by Section 423(b)(8) of the Code.

3.03 Participation.

(a)Each Employee eligible to be a Participant in the Plan shall be furnished a summary of the Plan. If an Employee elects to participate hereunder, such Employee shall complete his or her election, in such manner as may be provided by the Committee, not later than the Election Date for the next Plan Quarter. The completed election shall indicate the Contribution Rate authorized by the Participant. If any Employee does not elect to participate in the Plan during any given Plan Quarter, such Employee may elect to participate on any future Commencement Date so long as he or she continues to be an eligible Employee.

(b)An Employee must authorize his or her Participating Employer to deduct through a payroll deduction the amount of such Employee’s Participant Contribution. The payroll deduction specified in the Employee’s election for each payroll period shall be at a Contribution Rate in whole percentages of not less than 1% and not more than 10% of such Employee’s Covered Compensation during such payroll period paid to him or her by his or her Participating Employer. Such deductions shall begin as of the first pay period occurring on or after the Commencement Date of a Plan Quarter. No interest shall accrue to Participants on any amounts withheld under the Plan.

(c)The Participant’s Contribution Rate, once established, shall remain in effect for all Plan Quarters unless changed by the Participant, in such manner as may be provided by the Committee, not later than the Election Date of the next Plan Quarter. A Participant’s Contribution Rate for a Plan Quarter may not be increased, decreased or otherwise modified at any time during the period between the Election Date and the Commencement Date of such Plan Quarter.

(d)A Participant may discontinue his or her Participant Contributions, in such manner as may be provided by the Committee, at least 15 days prior to the Purchase Date of the relevant Plan Quarter. Upon such request, there shall be refunded to such Participant as soon as practicable the entire cash balance in his or her Contribution Account. If a Participant determines to discontinue his or her Participant Contributions pursuant to this paragraph, (i) such Participant shall be immediately terminated from the Plan and (ii) such Participant shall not be permitted to be a Participant in the Plan until the Participant completes and files a new election, in such manner as may be provided by the Committee, no later than the Election Date of the Plan Quarter the Participant wishes to again participate in the Plan. In the event that a Participant’s payroll deductions are prevented by legal process, the Participant will be deemed to have terminated from the Plan.

(e)By enrolling in the Plan, each Participant will be deemed to have authorized the establishment of a brokerage account in his or her name at a securities brokerage firm or other financial institution, if approved by the Committee in its discretion.

3.04 Termination of Employment; Re-employment

(a)Any Participant (i) whose employment by a Participating Employer is terminated for any reason or (ii) who shall otherwise cease to be an Employee for purposes of the Plan, shall cease being a Participant as of the date of such event. Upon such termination of employment or cessation of Employee status, there shall be refunded to such Participant as soon as practicable the entire cash balance in such Participant’s Contribution Account.

(b)Any Employee whose employment by a Participating Employer is terminated and who is re-employed by a Participating Employer shall be eligible to be a Participant in the Plan in accordance with Section 3.01(a) following the date of re-employment.

ARTICLE IV

COMMON STOCK

4.01 Purchase of Common Stock.

(a)On each Purchase Date, each Participant’s Contribution Account shall be used to purchase the maximum number of whole and fractional shares of Common Stock determined by dividing (i) the balance in such Participant’s Contribution Account as of such Purchase Date by (ii) the Purchase Price in respect of such Plan Quarter.

(b)If, in any Plan Quarter, the total number of shares of Common Stock to be purchased pursuant to the Plan by all Participants exceeds the number of shares authorized under the Plan, then each Participant shall purchase his or her pro rata portion of the shares of Common Stock remaining available under the Plan based on the balances in each Participant’s Contribution Account as of the Purchase Date in respect of such Plan Quarter.

(c)Any cash dividends paid with respect to shares of Common Stock held for the account of a Participant shall be, as determined by the Participant, (i) distributed to the Participant, or (ii) used to purchase additional shares of Common Stock on the open market, provided that the Participant has made a prior arrangement with the securities brokerage firm described in Section 3.03(e) hereof to apply any cash dividends to make such purchases.

4.02 Purchase Price. For each Plan Quarter, the Purchase Price per share of Common Stock purchased pursuant to the Plan shall be 95% of the Fair Market Value on the Purchase Date of such Plan Quarter.

4.03 Stock, Voting Rights.

(a)Evidence of shares of Common Stock purchased under the Plan shall be maintained under the Plan for the account of each Participant and registered in the manner determined by the Committee.

(b)Whole shares of Common Stock held under the Plan for the account of each Participant or former Participant shall be voted by the holder of record of such shares in accordance with the Participant’s instructions.

4.04 Notification of Disposition of Stock. If a Participant or former Participant disposes of a share of Common Stock purchased under the Plan prior to two (2) years after the Purchase Date of the Plan Quarter during which such share was purchased, then such Participant or former Participant shall notify his or her Participating Employer immediately of such disposition in writing.

ARTICLE V

MISCELLANEOUS PROVISIONS

5.01 Shares Subject to Plan; Adjustments.

(a)The maximum number of shares of Common Stock which may be purchased under the Plan is 16,000,000 subject, however, to adjustment as hereinafter set forth. The shares of Common Stock to be purchased under the Plan will be made available, at the discretion of the Board of Directors or the Committee, either from authorized but unissued shares of Common Stock or from previously issued shares of Common Stock reacquired by the Company, including shares purchased on the open market.

(b)If the outstanding shares of Common Stock of the Company are increased, decreased, or exchanged for a different number or kind of shares or other securities, or if additional shares or new or different shares or other securities are distributed with respect to such shares of Common Stock or other securities, through merger, consolidation, spin off, sale of all or substantially all the property of the Company, reorganization, recapitalization, reclassification, stock dividend, stock split, reverse stock split or other distribution with respect to such shares of Common Stock, or other securities, an appropriate and proportionate adjustment may be made in the maximum number and kind of shares provided in Sections 3.02 and 5.01(a) hereof, subject in the case of certain corporate reorganizations to the requirements of Section 424(a) of the Code.

5.02 Administration of the Plan.

(a)Pursuant to the direction of the Board of Directors, the Committee shall be responsible for the administration of the Plan. The Committee shall have the discretionary authority to interpret the Plan and determine all questions arising in the administration, application and operation of the Plan, including all questions of fact and all questions of interpretation of the provisions of the Plan. All such determinations by the Committee shall be conclusive and binding on all persons. The Committee, from time to time, may adopt, amend and rescind rules and regulations not inconsistent with the Plan for carrying out the Plan, and may approve the forms of any documents or writings provided for in the Plan, electronic or otherwise. The Committee shall have full discretionary authority to delegate ministerial functions of the Plan to employees of the Company and its Subsidiaries. No member of the Board of Directors or the Committee shall be liable for any action, determination or omission taken or made in good faith with respect to the Plan or any right granted hereunder.

(b)The Committee may in its discretion engage a bank trust department, securities brokerage firm or other financial institution as agent to perform custodial and record-keeping functions for the Plan, such as maintaining an individual investment account for each Participant and providing periodic account status reports to Participants.

(c)The Committee shall have the authority to adopt and enforce such special rules and restrictions under the Plan to be applicable to Participants who are subject to Section 16 of the Securities Exchange Act of 1934, as amended, as the Committee shall deem are necessary or appropriate to comply with the requirements of such Section 16.

(d)The Company shall bear the cost of administering the Plan, including any fees, costs and expenses relating to the purchase of shares of Common Stock under the Plan. Notwithstanding the foregoing, Participants will be responsible for all fees, costs and expenses incurred in connection with the disposition of shares of Common Stock purchased under the Plan.

5.03 Termination and Amendment of the Plan.

(a)The Company may, by action of the Board of Directors, terminate the Plan at any time and for any reason. The Plan shall automatically terminate upon the purchase by Participants of all shares of Common Stock subject to the Plan under Section 5.01 hereof, unless such number of shares shall be increased by the Board of Directors and such increase shall be approved by the shareholders of the Company. Upon termination of the Plan, as soon as practicable, there shall be refunded to each Participant the entire cash balance in his or her Contribution Account.

(b)The Board of Directors reserves the right to modify, alter or amend the Plan at any time and from time to time to any extent that it may deem advisable, subject to shareholder approval to the extent deemed necessary by the Board of Directors for compliance with Section 423 of the Code. Notwithstanding the foregoing, no amendment of the Plan shall operate to reduce any amounts previously allocated to a Participant’s Contribution Account nor to reduce a Participant’s rights with respect to shares of Common Stock previously purchased and held on his or her behalf under the Plan. The Board of Directors may suspend operation of the Plan for any period as it may deem advisable.

5.04 Governing Law; Compliance With Law. The Plan shall be construed in accordance with the laws of the State of New York. The Company’s obligation to sell and deliver shares of Common Stock hereunder shall be subject to all applicable federal and state laws, rules and regulations and to such approvals by any regulatory or governmental agency as may, as determined by counsel for the Company, be required. The Company may make such provisions as it may deem appropriate for the withholding of any taxes or payment of any taxes which it determines it may be required to withhold or pay in connection with a Participant’s participation in the Plan.

5.05 No Assignment. The purchase rights granted hereunder are not assignable or transferable by the Participants, other than by will or the laws of descent and distribution, and are exercisable during the Participant’s lifetime only by the Participant. Any attempted assignment, transfer or alienation not in compliance with the terms of the Plan shall be null and void for all purposes and respects.

5.06 No Contract of Employment. The Plan will not be deemed to constitute a contract between a Participating Employer and any Participant or to be a consideration or an inducement for the employment of any Participant or Employee. Nothing contained in the Plan shall be deemed to give any Participant or Employee the right to be retained in the service of a Participating Employer or to interfere with the right of a Participating Employer to discharge any Participant or Employee at any time regardless of the effect which such discharge shall have upon him or her as a Participant of the Plan.

5.07 No Rights as Shareholder. No eligible Employee or Participant shall by reason of participation in the Plan have any rights of a shareholder of the Company until he or she acquires shares of Common Stock as herein provided.

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## EX-31.1

SEC source: [a2026q2exhibit311.htm](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit311.htm)

EXHIBIT 31.1

CERTIFICATION

I, John D. Wren, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2026 of Omnicom Group Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, 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;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 29, 2026 /s/ JOHN D. WREN

John D. Wren   Chairman and Chief Executive Officer

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## EX-31.2

SEC source: [a2026q2exhibit312.htm](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit312.htm)

EXHIBIT 31.2

CERTIFICATION

I, Philip J. Angelastro, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2026 of Omnicom Group Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, 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;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 29, 2026 /s/ PHILIP J. ANGELASTRO

Philip J. Angelastro   Executive Vice President and   Chief Financial Officer

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## EX-32

SEC source: [a2026q2exhibit32.htm](https://www.sec.gov/Archives/edgar/data/29989/000002998926000019/a2026q2exhibit32.htm)

EXHIBIT 32

CERTIFICATION

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, in connection with the filing of Omnicom Group Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of Omnicom Group Inc. certifies that, to such officer's knowledge:

- the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
- the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Omnicom Group Inc. as of the dates and for the periods expressed in the Report.

Date: July 29, 2026

/s/ JOHN D. WREN

Name: John D. Wren

Title: Chairman and Chief Executive Officer

/s/ PHILIP J. ANGELASTRO

Name: Philip J. Angelastro

Title: Executive Vice President and Chief Financial Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, and will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent that Omnicom Group Inc. specifically incorporates it by reference.