Mauro Gregorio - 01 Jun 2026 Form 4 Insider Report for GRAHAM CORP (GHM)

Reporting relationship: Director
Issuer ticker: GHM
Reported as of: 01 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 03 Jun 2026, 16:34:19 UTC
Prior SEC filing: 15 Sep 2025
Source filing: View source filing
Reporting owner signature: /s/ Christina McLeod, Attorney-in-Fact for Mauro Gregorio

Key filing fact

Mauro Gregorio filed Form 4 for GRAHAM CORP (GHM) on 03 Jun 2026.

Key facts

This page summarizes Mauro Gregorio's Form 4 filing for GRAHAM CORP (GHM).
1 reported transaction and 2 derivative rows are listed below.
Accepted by SEC: 03 Jun 2026, 16:34.

Change

Previous filing in this sequence was filed on 15 Sep 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001809712 Primary reporting owner

Gregorio Mauro

Relationship: Director
Address: C/O GRAHAM CORPORATION, 20 FLORENCE AVENUE, BATAVIA
Signature: /s/ Christina McLeod, Attorney-in-Fact for Mauro Gregorio
Signature date: 03 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GHM holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,200
Date: 01 Jun 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

GHM transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +905
Change %
Price: $0.000000^*
Shares after: 905
Date: 01 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 905
Exercise price: $0.000000
Footnotes: F1

GHM holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 936
Date: 01 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 936
Exercise price: $0.000000
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

These restricted stock units, which convert into common stock on a one-for-one basis, 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 on 6/1/2027.

Footnote F2

These restricted stock units, which convert into common stock on a one-for-one basis, vest on 9/2/2026, except as otherwise provided in the award notice.