Form 4 Filing by Diane Poillon for Burke & Herbert Financial Services Corp.

Diane Poillon, a director at Burke & Herbert Financial Services Corp. (BHRB), reported a transaction on May 1, 2026. This transaction involved the conversion of her previously held 14,285 shares of LINKBANCORP, Inc. (LNKB) common stock into 1,928 shares of BHRB common stock, as per the merger agreement between LNKB and BHRB. Additionally, her outstanding LNKB stock options were converted into BHRB stock options. Specifically, 675 stock options for BHRB common stock were acquired, with an exercise price of $74.08 and an underlying security value of 675 shares of common stock. The post-transaction holdings indicate direct ownership of 1,928 shares of common stock and 675 stock options.