Form4.ai tracks every SEC insider trade in real time. See every GHM insider filing with a free account — no card.
See every GHM insider filing — free account, no card.
Free accountGRAHAM CORP (GHM) has 4 SEC Form 4 insider filings on record in the last 90 days. That includes 1 insider purchase totalling $59K. Most recent filing: Sept. 21, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Sep 21, 2026 SEC filing | Gregorio Mauro Director | Gift | — | — |
| Sep 21, 2026 SEC filing Amended: Corrected by the insider on Sep 21, 2026 | Gregorio Mauro Director | Bought | $58,812 | +31.7% 90D |
| Sep 3, 2026 SEC filing | Gregorio Mauro Director | Option exercise | — | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.