X0609 4 2026-08-01 0001531031 Esquire Financial Holdings, Inc. ESQ 0001390493 O'ROURKE MICHAEL G false 100 JERICHO QUADRANGLE SUITE 100 JERICHO NY 11753 1 1 President of Chicago Bank Div 0 Common Stock 2026-08-01 4 A 0 66726 A 66726 D Common Stock 2026-08-01 4 A 0 18630 A 18630 I By IRA Stock Options 19.57 2026-08-01 4 A 0 5953 A 2017-10-01 2026-10-01 Common Stock 5953 5953 D Stock Options 22.41 2026-08-01 4 A 0 4807 A 2018-08-01 2027-08-01 Common Stock 4807 4807 D Stock Options 29.66 2026-08-01 4 A 0 4137 A 2019-07-01 2028-07-01 Common Stock 4137 4137 D Stock Options 36.73 2026-08-01 4 A 0 2671 A 2020-10-01 2029-10-01 Common Stock 2671 2671 D Stock Options 35.39 2026-08-01 4 A 0 1976 A 2021-10-01 2030-10-01 Common Stock 1976 1976 D Stock Options 42.97 2026-08-01 4 A 0 2003 A 2022-07-01 2031-07-01 Common Stock 2003 2003 D Stock Options 52.23 2026-08-01 4 A 0 1816 A 2023-07-01 2032-07-01 Common Stock 1816 1816 D Stock Options 62.34 2026-08-01 4 A 0 1842 A 2024-07-01 2033-07-01 Common Stock 1842 1842 D Stock Options 70.77 2026-08-01 4 A 0 1856 A 2025-07-01 2034-07-01 Common Stock 1856 1856 D Stock Options 80.87 2026-08-01 4 A 0 1861 A 2026-07-01 2035-07-01 Common Stock 1861 1861 D Stock Options 111.14 2026-08-01 4 A 0 1861 A 2027-05-26 2036-05-26 Common Stock 1861 1861 D Stock Options 80.87 2026-08-01 4 A 0 1861 A 2026-07-01 2035-07-01 Common Stock 1861 1861 D Pursuant to the Agreement and Plan of Merger dated March 11, 2026 between the Issuer, Signature Bancorporation, Inc. ("Signature") and Esquire Merger Sub, Inc., each issued and outstanding share of Signature common stock was converted into the right to receive 2.671 shares of common stock of Issuer. Holders of Signature Common Stock will receive cash in lieu of fractional shares of Issuer common stock in accordance with the terms of the Agreement and Plan of Merger. This option converted into a stock option exercisable for a number of shares of Issuer common stock equal to the number of shares of Signature common stock underlying the option multiplied by 2.671, rounded down to the nearest whole share, with an exercise price per share of Issuer common stock equal to the exercise price applicable to the underlying option divided by 2.671, rounded up to the nearest cent. Stock options are fully vested. Stock options vest in five equal annual installments commencing on May 26, 2027. /s/ Gary A. Lax, pursuant to power of attorney 2026-08-01