X0508 4 2026-01-22 0 0001964333 Burke & Herbert Financial Services Corp. BHRB 0001964158 Halyama Roy Eugene 100 SOUTH FAIRFAX STREET ALEXANDRIA VA 22314 0 1 0 0 EVP, Chief Financial Officer 0 Common Stock 2026-01-22 4 A 0 5984 0 A 20053 D The reporting person received an award of 5,984 performance-based restricted stock units ("PRSUs") under the Burke & Herbert Bank 2024 - 2025 Merger Incentive Plan adopted May 1, 2024. The award will vest in three annual installments beginning on May 3, 2026, subject to the reporting person's continued employment through each applicable vesting date. Each vested PRSU will be settled in share of Burke & Herbert Financial Services Corp. common stock within 60 days of the vested date. /s/ Matthew Rucker, as Attorney-in-Fact for Roy E. Halyama 2026-01-23