[Form 4] TRUSTCO BANK CORP N Y Insider Trading Activity

Rhea-AI Filing Summary

TrustCo Bank Corp NY (TRST) Executive Vice President and CFO Michael Ozimek reported equity transactions in company stock on 11/21/2025. A block of 1,107 shares of common stock was acquired at $0 through the vesting and settlement of restricted stock units (RSUs) that convert into common shares on a one-for-one basis. To cover withholding taxes due upon this vesting, 435 common shares were disposed of at $41.54 in an exempt transaction under Rule 16b-3(e). Following these transactions, Ozimek directly beneficially owned 29,972 shares of common stock, along with multiple RSU awards that continue to vest in three equal annual installments beginning on November 21, 2024, November 19, 2025, and November 18, 2026.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

OZIMEK MICHAEL M

(Last) (First) (Middle)

C/O TRUSTCO BANK CORP NY

5 SARNOWSKI DRIVE

(Street)

GLENVILLE NY 12302

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TRUSTCO BANK CORP N Y [ TRST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EXECUTIVE VICE PRESIDENT & CFO

3. Date of Earliest Transaction (Month/Day/Year)
11/21/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
COMMON STOCK	11/21/2025		M(1)		1,107	A	$0	30,407	D
COMMON STOCK	11/21/2025		F(2)		435	D	$41.54	29,972	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
RESTRICTED STOCK UNIT	(3)	11/21/2025		M(1)			1,107	(4)	(4)	COMMON STOCK	1,107	$0	1,108	D
RESTRICTED STOCK UNIT	(3)							(5)	(5)	COMMON STOCK	1,833		1,833	D
RESTRICTED STOCK UNIT	(3)							(6)	(6)	COMMON STOCK	3,057		3,057	D

Explanation of Responses:

1. Represents the vesting and settlement of restricted stock units ("RSUs"), which convert into common stock of the Issuer on a one-for-one basis.

2. 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.

3. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting.

4. The RSU's vest in three equal annual installments beginning on November 21, 2024, the first anniversary of the date of the grant.

5. The RSU's vest in three equal annual installments beginning on November 19, 2025, the first anniversary of the date of the grant.

6. The RSU's vest in three equal annual installments beginning on November 18, 2026, the first anniversary of the date of the grant.

Remarks:

ADDITIONAL SHARES ACQUIRED BY REPORTING PERSON'S PARTICIPATION IN DIVIDEND REINVESTMENT AND/OR EMPLOYEE BENEFIT PLAN WITH DIVIDEND REINVESTMENT FEATURE.

	/S/ OZIMEK MICHAEL	11/24/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did TRST's CFO report on 11/21/2025?

TRUSTCO BANK CORP N Y (TRST) Executive Vice President & CFO Michael Ozimek reported the vesting and settlement of 1,107 restricted stock units into common stock and the withholding of 435 common shares to pay taxes on 11/21/2025.

How many TRST common shares did the CFO acquire and at what price?

The CFO acquired 1,107 shares of TRST common stock at an exercise price of $0 as RSUs vested and converted into common shares on a one-for-one basis.

How many TRST shares were withheld for taxes in this Form 4 filing?

A total of 435 shares of TRUSTCO BANK CORP N Y common stock were disposed of at $41.54 per share, withheld by the issuer to pay withholding taxes due upon RSU vesting.

What is the CFO's TRST common stock ownership after the reported transaction?

After the reported transactions, Michael Ozimek beneficially owned 29,972 shares of TRST common stock in direct ownership.

What restricted stock units does the TRST CFO hold after this filing?

Following the activity, the CFO held RSUs covering 1,108, 1,833, and 3,057 shares of TRST common stock, with these RSUs vesting in three equal annual installments beginning on November 21, 2024, November 19, 2025, and November 18, 2026, respectively.

How do the TRST RSUs for the CFO vest over time?

Each RSU award represents a contingent right to receive one TRST common share and vests in three equal annual installments starting on the first anniversary of the grant dates: November 21, 2024, November 19, 2025, and November 18, 2026.