MPTI (M-tron Industries, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by MPTI 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.
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-05 | Linda M Biles | Executive VP - Finance | A | — | — |
| 2026-08-05 | Cameron Pforr | CEO and CFO | A | — | — |
| 2026-08-05 | William Arnold Drafts | President | A | — | — |
| 2026-05-06 | Cameron Pforr | CEO and CFO | Sell | — | — |
| 2026-05-06 | Linda M Biles | Executive VP - Finance | Sell | — | — |
| 2026-05-06 | William Arnold Drafts | President | Sell | — | — |
| 2026-05-04 | Cameron Pforr | CEO and CFO | M | — | — |
| 2026-04-29 | Linda M Biles | Executive VP - Finance | Sell | — | — |
| 2026-04-29 | Ivan Arteaga | Director | X | — | — |
| 2026-04-28 | MARC GABELLI | Director | X | — | — |
| 2026-04-28 | William Arnold Drafts | President | Sell | — | — |
| 2026-04-24 | Cameron Pforr | CEO and CFO | X | — | — |
| 2026-04-23 | Hendi Susanto | Director | X | — | — |
| 2026-04-16 | Linda M Biles | Executive VP - Finance | Sell | — | — |
| 2026-04-07 | William Arnold Drafts | President | A | — | — |
| 2026-04-07 | Cameron Pforr | CEO and CFO | A | — | — |
| 2026-04-07 | Linda M Biles | Executive VP - Finance | MIXED | — | — |
| 2026-04-07 | William Arnold Drafts | President | X | — | — |
| 2026-03-23 | John S Mega | Director | A | — | — |
| 2026-03-23 | BEL LAZAR | Director | A | — | — |
| 2026-03-23 | Ivan Arteaga | Director | A | — | — |
| 2026-03-23 | David M Goldman | Director | A | — | — |
| 2026-03-23 | Hendi Susanto | Director | A | — | — |
| 2026-03-23 | MARC GABELLI | Director | A | — | — |
| 2026-03-23 | Robert V Jr LaPenta | Director | A | — | — |
| 2026-01-08 | Ivan Arteaga | Director | X | — | — |
| 2026-01-07 | David M Goldman | Director | X | — | — |
| 2025-12-31 | Hendi Susanto | Director | X | — | — |
| 2025-12-30 | Cameron Pforr | CEO and CFO | X | — | — |
| 2025-12-30 | Ivan Arteaga | Director | X | — | — |
| 2025-12-23 | William Arnold Drafts | President | X | — | — |
| 2025-12-23 | Robert V Jr LaPenta | Director | X | — | — |
| 2025-12-23 | BEL LAZAR | Director | X | — | — |
| 2025-04-08 | Cameron Pforr | Chief Financial Officer | A | — | — |
| 2025-04-08 | William Arnold Drafts | President | A | — | — |
| 2025-04-08 | Linda M Biles | EVP Finance | A | — | — |
| 2025-04-04 | Cameron Pforr | Chief Financial Officer | A | — | — |
| 2025-03-31 | MARC GABELLI | Director | A | — | — |
| 2025-03-26 | David M Goldman | Director | A | — | — |
| 2025-03-25 | John S Mega | Director | A | — | — |
| 2025-03-25 | Robert V Jr LaPenta | Director | A | — | — |
| 2025-03-25 | Hendi Susanto | Director | A | — | — |
| 2025-03-25 | BEL LAZAR | Director | A | — | — |
| 2025-03-25 | Ivan Arteaga | Director | A | — | — |
| 2024-11-20 | MARIO J GABELLI | 10%+ Owner | G | — | — |
| 2024-11-18 | MARIO J GABELLI | 10%+ Owner | G | — | — |
| 2024-11-15 | MARIO J GABELLI | 10%+ Owner | Sell | — | — |
| 2024-11-14 | MARIO J GABELLI | 10%+ Owner | Sell | — | — |
| 2024-11-12 | MARIO J GABELLI | 10%+ Owner | G | — | — |
| 2024-11-08 | MARIO J GABELLI | 10%+ Owner | G | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 562,742 | — |
| — | 10%+ Owner | 219,754 | — |
| — | Director | 114,161 | — |
| — | Chief Financial Officer | 50,008 | — |
| — | Chief Executive Officer | 39,222 | — |
| — | CEO and CFO | 30,611 | — |
| — | Executive VP - Finance | 29,941 | — |
| — | President | 16,656 | — |
| — | Director | 9,154 | — |
| — | Director | 6,845 | — |
| — | Director | 5,586 | — |
| — | Director | 4,509 | — |
| — | Director | 2,599 | — |
| — | Director | 1,313 | — |
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 MPTI quote page; the site-wide leaderboard is on the insider transactions hub.