GHM · Insider Trading
Graham Corporation
Every open-market purchase and sale reported by GHM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-21 | Mauro Gregorio | Director | G | −936 | — |
| 2026-09-21 | Mauro Gregorio | Director | Buy | +1,200 | +$58.81K |
| 2026-09-03 | Mauro Gregorio | Director | M | +936 | — |
| 2026-08-11 | Richard Alan Scholes | Chief Growth & Enblmnt Officer | A | +5,241 deriv. | — |
| 2026-06-10 | Daniel J. Thoren | Executive Chairman | MIXED | +14,006 | −$771.78K |
| 2026-06-10 | Matthew Malone | President and CEO | MIXED | +6,142 | −$236.16K |
| 2026-06-10 | Christopher J. Thome | VP-Finance; CFO | MIXED | +5,426 | −$304.42K |
| 2026-06-08 | Daniel J. Thoren | Executive Chairman | MIXED | +3,950 | −$171.98K |
| 2026-06-08 | Matthew Malone | President and CEO | MIXED | +920 | −$40.05K |
| 2026-06-08 | Christopher J. Thome | VP-Finance; CFO | MIXED | +1,035 | −$65.64K |
| 2026-06-03 | James J Barber | Director | M | +1,956 | — |
| 2026-06-03 | Matthew Lee Gross | VP & GM of Flacktek | A | — | — |
| 2026-06-03 | Michael E. Dixon | VP & GM of Barber-Nichols | MIXED | +527 | −$24.94K |
| 2026-06-03 | Lisa M. Schnorr | Director | M | +1,956 | — |
| 2026-06-03 | Jonathan W Painter | Director | M | +1,956 | — |
| 2026-06-03 | Troy A. Stoner | Director | M | +1,956 | — |
| 2026-06-03 | Christopher J. Thome | VP-Finance; CFO | MIXED | +692 | −$43.19K |
| 2026-06-03 | Cari L Jaroslawsky | Director | M | +1,956 | — |
| 2026-06-03 | Mauro Gregorio | Director | A | — | — |
| 2026-06-03 | Daniel J. Thoren | Executive Chairman | MIXED | +377 | −$16.13K |
| 2026-06-03 | William H. Zmyndak | VP & GM Graham Manufacturing | A | +1,026 deriv. | — |
| 2026-06-03 | Matthew Malone | President and CEO | MIXED | +1,810 | −$77.46K |
| 2026-05-18 | Christopher J. Thome | VP-Finance; CFO | MIXED | +1,475 | −$88.45K |
| 2026-05-18 | Daniel J. Thoren | Executive Chairman | MIXED | +4,289 | −$176.90K |
| 2026-05-18 | Matthew Malone | President and CEO | MIXED | +1,693 | −$67.03K |
| 2026-03-25 | Michael E. Dixon | VP & GM of Barber-Nichols | MIXED | +235 | −$8.78K |
| 2025-09-15 | Mauro Gregorio | Director | Buy | +1,200 | +$58.81K |
| 2025-09-03 | Mauro Gregorio | Director | A | +936 deriv. | — |
| 2025-06-11 | Christopher J. Thome | VP-Finance; CFO | MIXED | +4,756 | −$119.69K |
| 2025-06-11 | Matthew Malone | President and CEO | MIXED | +5,482 | −$98.74K |
| 2025-06-11 | Daniel J. Thoren | Executive Chairman | MIXED | +13,119 | −$330.22K |
| 2025-06-11 | Alan E Smith | VP & General Manager - Batavia | MIXED | +4,074 | −$161.62K |
| 2025-06-05 | Christopher J. Thome | VP-Finance; CFO | MIXED | +1,051 | −$24.21K |
| 2025-06-05 | Alan E Smith | VP & General Manager - Batavia | MIXED | +684 | −$24.82K |
| 2025-06-05 | Daniel J. Thoren | Chief Executive Officer | MIXED | +3,545 | −$81.66K |
| 2025-06-05 | Matthew Malone | President and COO | MIXED | +920 | −$15.17K |
| 2025-06-04 | James J Barber | Director | M | +2,934 | — |
| 2025-06-04 | Jonathan W Painter | Director | M | +2,934 | — |
| 2025-06-04 | Cari L Jaroslawsky | Director | M | +2,934 | — |
| 2025-06-04 | Christopher J. Thome | VP-Finance; CFO | A | — | — |
| 2025-06-04 | Matthew Malone | President and COO | A | — | — |
| 2025-06-04 | Daniel J. Thoren | Chief Executive Officer | A | — | — |
| 2025-06-04 | Lisa M. Schnorr | Director | M | +2,934 | — |
| 2025-06-04 | Troy A. Stoner | Director | M | +2,934 | — |
| 2025-06-04 | Alan E Smith | VP & General Manager - Batavia | A | — | — |
| 2025-05-27 | Christopher J. Thome | VP-Finance; CFO | MIXED | +1,888 | −$39.11K |
| 2025-05-27 | Alan E Smith | VP & General Manager - Batavia | MIXED | +11,315 | −$369.85K |
| 2025-05-27 | Daniel J. Thoren | Chief Executive Officer | MIXED | +5,206 | −$107.94K |
| 2025-05-27 | Matthew Malone | President and COO | M | +3,053 | — |
| 2025-05-20 | Alan E Smith | VP & General Manager - Batavia | MIXED | +1,210 | −$43.41K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Daniel J. Thoren | Executive Chairman | 383,040 | $26.18M |
| Alan E Smith | VP & General Manager - Batavia | 70,253 | $4.80M |
| Matthew Malone | President and CEO | 63,629 | $4.35M |
| James J Barber | Director | 55,791 | $3.81M |
| Christopher J. Thome | VP-Finance; CFO | 39,181 | $2.68M |
| Lisa M. Schnorr | Director | 37,867 | $2.59M |
| Jonathan W Painter | Director | 34,556 | $2.36M |
| Cari L Jaroslawsky | Director | 18,623 | $1.27M |
| Troy A. Stoner | Director | 18,623 | $1.27M |
| Matthew Lee Gross | VP & GM of Flacktek | 15,203 | $1.04M |
| Michael E. Dixon | VP & GM of Barber-Nichols | 1,263 | $86.33K |
| Mauro Gregorio | Director | 1,200 | $82.02K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the GHM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.