Graham executive chair exercises 529 shares, sells 152

Graham Corp Executive Chairman Daniel J. Thoren reported routine equity compensation activity.

Rhea-AI Filing Summary

Graham Corp Executive Chairman Daniel J. Thoren reported routine equity compensation activity. On June 2, 2026, 529 Restricted Stock Units (RSUs) converted into 529 shares of common stock at an exercise price of $0.00 per share, reflecting vesting of prior awards.

Also on that date, 152 common shares were withheld to cover tax withholding obligations related to RSU vesting, a non-market disposition. After these transactions, Thoren directly held 356,989 shares of common stock.

On June 1, 2026, he received a grant of 629 RSUs under the 2020 Graham Corporation Equity Incentive Plan, which generally vest in three equal annual installments beginning on June 1, 2027. RSUs convert into common stock on a one-for-one basis.

Insider Trade Summary

529 shares exercised/converted

Exercise 5 txns

Insider Thoren Daniel J.

Role Executive Chairman

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	529	$0.00	$0.00
Exercise	Common Stock	529	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	152	$106.11	$16K
Grant/Award	Restricted Stock Units	629	$0.00	$0.00
holding	Restricted Stock Units	--	--	--

Holdings After Transaction: Restricted Stock Units — 12,774 contracts for 11,086 underlying shares (Direct); Common Stock — 356,989 shares (Direct)

Footnotes (5)

1. F1. These restricted stock units convert into common stock on a one-for-one basis ("RSUs").
2. F2. Shares withheld to cover tax withholding obligations upon the vesting of RSUs.
3. F3. One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028.
4. F4. These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029.
5. F5. These RSUs vest in substantially equal installments on each of 6/4/2026 and 6/4/2027, except as otherwise provided in the award notice.

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Accepted by SEC EDGAR 06/03/2026 - 04:31 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

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^*

Thoren Daniel J.

(Last) (First) (Middle)

C/O GRAHAM CORPORATION

20 FLORENCE AVENUE

(Street)

BATAVIA NEW YORK 14020

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GRAHAM CORP [ GHM ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Chairman

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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

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

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

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	06/02/2026		M		529	A	$0(1)	357,141	D
Common Stock	06/02/2026		F		152(2)	D	$106.11	356,989	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 Units	$0(1)	06/02/2026		M			529	(3)	(3)	Common Stock	529	$0	1,059	D
Restricted Stock Units	$0(1)	06/01/2026		A		629		(4)	(4)	Common Stock	629	$0	629	D
Restricted Stock Units	$0(1)							(5)	(5)	Common Stock	11,086		11,086	D

Explanation of Responses:

1. These restricted stock units convert into common stock on a one-for-one basis ("RSUs").

2. Shares withheld to cover tax withholding obligations upon the vesting of RSUs.

3. One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028.

4. These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029.

5. These RSUs vest in substantially equal installments on each of 6/4/2026 and 6/4/2027, except as otherwise provided in the award notice.

	/s/ Christina McLeod, Attorney-in-Fact for Daniel J. Thoren	06/03/2026
	** 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.
* Form 4: SEC 1474 (03-26)