Coastal Financial CCB CCBX — Number of Partners

The Company operates through the Bank and is headquartered in Everett, Washington, which by population is the largest city in Snohomish County. The Company’s business is conducted through three reportable segments: The community bank, CCBX and treasury & administration. The primary focus of the community bank is on providing a wide range of banking products and services to consumers and small to medium sized businesses in the broader Puget Sound region in the state of Washington and through the Internet and our mobile banking application. We currently operate 14 full-service banking locations, 12 of which are located in Snohomish County, where we are the largest community bank by deposit market share, and two of which are located in neighboring counties (one in King County and one in Island County). We also have a loan production office which is located in King county. The CCBX segment provides banking as a service (“BaaS”) that allows digital financial service providers, companies and brands to offer their customers banking services. The CCBX segment had a total of 30 partners, at varying stages as of March 31, 2026. The treasury & administration segment includes investments, debt and other reporting items that are not specific to the community bank or CCBX segments.