X0508 4 2025-11-21 0000357301 TRUSTCO BANK CORP N Y TRST 0001699685 CURLEY KEVIN M C/O TRUSTCO BANK CORP NY 5 SARNOWSKI DRIVE GLENVILLE NY 12302 true EXECUTIVE VICE PRESIDENT & CBO false COMMON STOCK 2025-11-21 4 M 0 1107 0 A 40679 D COMMON STOCK 2025-11-21 4 F 0 461 41.54 D 40218 D COMMON STOCK 152 I BY FAMILY RESTRICTED STOCK UNIT 2025-11-21 4 M 0 1107 0 D COMMON STOCK 1107 1108 D RESTRICTED STOCK UNIT COMMON STOCK 2200 2200 D RESTRICTED STOCK UNIT COMMON STOCK 3057 3057 D Represents the vesting and settlement of restricted stock units ("RSUs"), which convert into common stock of the Issuer on a one-for-one basis. In an exempt transaction pursuant to Rule 16b-3(e), shares of the Issuer's common stock were withheld by the Issuer for the payment of withholding taxes due upon the vesting of RSUs. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSU's vest in three equal annual installments beginning on November 21, 2024, the first anniversary of the date of the grant. 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. ADDTIONAL SHARES ACQUIRED BY REPORTING PERSON'S PARTICIPATION DIVIDEND REINVESTMENT AND/OR EMPLOYEE BENEFIT PLAN WITH DIVIDEND REINVESTMENT FEATURE. /S/ MICHAEL M. OZIMEK, BY POWER OF ATTORNEY 2025-11-24