TrustCo (TRST) Insider Activity: Option Exercise and Partial Sale Reported

Rhea-AI Filing Summary

Michael James Hall, General Counsel & Secretary of TrustCo Bank Corp. N.Y. (TRST), reported insider transactions dated 08/27/2025. The filing shows an option exercise (code M) resulting in 225 shares acquired at an exercise price of $32.15, and a sale (code F) of 184 shares at $39.32. After these transactions the reporting person beneficially owns 10,448 shares. The form notes the option award vested earlier and that some additional shares were obtained through the company’s dividend reinvestment/employee plan. Transactions were reported on a Form 4 filed under Section 16.

Insights

Securities Analyst

TL;DR: Insider exercised options and sold a portion, leaving a small net increase in holdings; activity appears routine.

The reported exercise of an option for 225 shares at $32.15 followed by a sale of 184 shares at $39.32 indicates the reporting person monetized part of the exercised position while retaining shares. The filing states the award vested previously and that dividend reinvestment added shares. The sizes (hundreds of shares) relative to total outstanding stock are not provided in the form, so materiality to shareholders cannot be assessed from this filing alone.

Corporate Governance Expert

TL;DR: Disclosure meets Section 16 requirements; transactions reflect standard insider option exercise and partial disposition.

The Form 4 discloses a vested option exercise and a subsequent sale reported under the appropriate transaction codes. The explanation clarifies vesting and dividend reinvestment participation, which improves transparency. There are no indications of unusual timing or related-party arrangements in the text provided. Without additional context on total outstanding shares or executive compensation schedules, this remains a routine insider disclosure.

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^*

HALL MICHAEL JAMES

(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)
	GENERAL COUNSEL & SECRETARY

3. Date of Earliest Transaction (Month/Day/Year)
08/27/2025

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	08/27/2025		M		225	A	$32.15	10,448	D
COMMON STOCK	08/27/2025		F		184	D	$39.32	10,264	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
OPTION TO BUY: RT-TO-BUY	$32.15	08/27/2025		M			225	(1)	11/17/2025	COMMON STOCK	225	$0	0	D

Explanation of Responses:

1. Award vested in equal installments from the first thought the fifth year following the award date, and was fully vested on November 17, 2020.

Remarks:

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	08/29/2025
	** 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 transactions did TRST insider Michael James Hall report on Form 4?

The Form 4 reports an option exercise of 225 shares at $32.15 and a sale of 184 shares at $39.32, both dated 08/27/2025.

How many TrustCo (TRST) shares does the reporting person own after these transactions?

The filing states the reporting person beneficially owns 10,448 shares following the reported transactions.

Did the Form 4 indicate why the option was exercisable?

Yes. The filing explains the award vested in equal installments and was fully vested on 11/17/2020, making the option exercisable.

Were any additional shares acquired through company plans?

The filing includes a remark that additional shares were acquired via dividend reinvestment and/or an employee benefit plan with a reinvestment feature.

Who signed the Form 4 on behalf of the reporting person?

The filing shows it was signed by power of attorney by Michael M. Ozimek on behalf of the reporting person.