X0508 4 2025-11-21 0000357301 TRUSTCO BANK CORP N Y TRST 0001696206 HALL MICHAEL JAMES C/O TRUSTCO BANK CORP NY 5 SARNOWSKI DRIVE GLENVILLE NY 12302 true GENERAL COUNSEL & SECRETARY false COMMON STOCK 2025-11-21 4 M 0 271 0 A 10643 D COMMON STOCK 2025-11-21 4 D 0 271 41.54 D 10372 D RESTRICTED STOCK UNIT 2025-11-21 4 M 0 271 0 A COMMON STOCK 271 270 D RESTRICTED STOCK UNIT COMMON STOCK 807 807 D RESTRICTED STOCK UNIT COMMON STOCK 2547 2547 D Reflects cash settlement of restricted stock units that settled only for cash. Each restricted stock unit represents a contingent right to receive a payment in cash equal to the value of one share of Issuer Common Stock on the settlement date. The restricted stock units vest in three equal annual installments beginning on November 21, 2024. One third of the restricted stock units awarded November 21, 2023 "vested" on November 21, 2025 and were settled in cash. The RSU's vest in three equal annual installments beginning on November 19, 2025, the first anniversary of the date of the grant. The RSU's vest in three equal annual installments beginning on November 18, 2026, the first anniversary of the date of the grant. Each restricted stock unit represents a contingent right to receive a payment in cash to the fair market value of issued common stock, as determined on the date of the vesting of the restricted stock unit. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock upon vesting. ADDITIONAL SHARES ACQUIRED BY REPORTING PERSON'S PARTICIPATION IN DIVIDEND REINVESTMENT AND/OR EMPLOYEE BENEFIT PLAN WITH DIVIDEND REINVESTMENT FEATURE. /S/ MICHAEL M. OZIMEK, BY POWER OF ATTORNEY 2025-11-24