X0609 4/A 2025-09-12 2025-09-15 0000716314 GRAHAM CORP GHM 0001809712 Gregorio Mauro false C/O GRAHAM CORPORATION 20 FLORENCE AVENUE BATAVIA NY 14020 1 0 0 0 0 Common Stock 2025-09-12 4 P 0 1200 49.01 A 1200 I By Family Trust This Form 4 amendment is being filed to correct the nature of ownership that was inadvertently reported as being directly owned in the prior Form 4. The reporting person and his spouse are co-trustees of the trust. /s/ Christina McLeod, Attorney-in-Fact for Mauro Gregorio 2026-09-21