Exhibit 99.1 COASTAL FINANCIAL CORPORATION ANNOUNCES FIRST QUARTER 2026 RESULTS Company Release: April 29, 2026 • CCBX Partner and Product Expansion. As of March 31, 2026 we had two partners in testing, three in implementation/onboarding, and two signed letters of intent (LOIs). Our active pipeline positions us for continued growth, with new partnership opportunities and product launches expected for 2026. Total BaaS program fee income was $10.9 million for the three months ended March 31, 2026, an increase ...