MTRX (Matrix Service Co)
Insider Trading Activity
Every open-market purchase and sale reported by MTRX 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 |
|---|---|---|---|---|---|
| 2026-09-04 | DAVID (JAMES) MILLER | VP & General Counsel | MIXED | — | — |
| 2026-08-31 | Kevin S Cavanah | VP Finance & CFO | MIXED | — | — |
| 2026-08-31 | JUSTIN D SHEETS | SVP, Enterprise Services | MIXED | — | — |
| 2026-08-31 | SHAWN P PAYNE | President & CEO | MIXED | — | — |
| 2026-08-27 | SHAWN P PAYNE | President & CEO | A | — | — |
| 2026-08-27 | JUSTIN D SHEETS | SVP, Enterprise Services | A | — | — |
| 2026-06-15 | JUSTIN D SHEETS | SVP, Enterprise Services | Sell | — | — |
| 2026-06-15 | Kevin S Cavanah | VP Finance & CFO | Sell | — | — |
| 2026-06-08 | Kevin S Cavanah | VP Finance & CFO | Sell | — | — |
| 2026-05-26 | Kevin S Cavanah | VP Finance & CFO | Sell | — | — |
| 2026-05-12 | JOHN R HEWITT | President & CEO | Sell | — | — |
| 2026-02-19 | NANCY E AUSTIN | VP, Chief Admin Officer | Sell | — | — |
| 2025-11-25 | SHAWN P PAYNE | President, Eng & Constr | Sell | — | — |
| 2025-11-24 | SHAWN P PAYNE | President, Eng & Constr | Sell | — | — |
| 2025-11-12 | SHAWN P PAYNE | President, Eng & Constr | Sell | — | — |
| 2025-11-05 | JOHN D CHANDLER | Director | A | — | — |
| 2025-11-05 | JAMES HARRY MILLER | Director | A | — | — |
| 2025-11-05 | Jose Luis M. Bustamante | Director | A | — | — |
| 2025-11-05 | Liane K Hinrichs | Director | A | — | — |
| 2025-11-05 | Martha Z. Carnes | Director | A | — | — |
| 2025-11-05 | Carlin G. Conner | Director | A | — | — |
| 2025-09-17 | JOHN D CHANDLER | Director | Buy | — | — |
| 2025-09-02 | NANCY E AUSTIN | VP, Chief Admin Officer | MIXED | — | — |
| 2025-09-02 | SHAWN P PAYNE | President, Eng & Constr | MIXED | — | — |
| 2025-09-02 | JUSTIN D SHEETS | VP, Legal & Ops Services | MIXED | — | — |
| 2025-09-02 | JOHN R HEWITT | President & CEO | MIXED | — | — |
| 2025-09-02 | Kevin S Cavanah | VP Finance & CFO | MIXED | — | — |
| 2025-09-02 | DOUGLAS J MONTALBANO | President, Matrix NAC | MIXED | — | — |
| 2025-08-28 | JOHN R HEWITT | President & CEO | MIXED | — | — |
| 2025-08-28 | SHAWN P PAYNE | President, Eng & Constr | MIXED | — | — |
| 2025-08-28 | NANCY E AUSTIN | VP, Chief Admin Officer | MIXED | — | — |
| 2025-08-28 | Kevin S Cavanah | VP Finance & CFO | MIXED | — | — |
| 2025-08-28 | JUSTIN D SHEETS | VP, Legal & Ops Services | MIXED | — | — |
| 2025-08-28 | DOUGLAS J MONTALBANO | President, Matrix NAC | MIXED | — | — |
| 2025-01-03 | JAMES HARRY MILLER | Director | A | — | — |
| 2024-11-06 | JOHN D CHANDLER | Director | A | — | — |
| 2024-11-06 | Jose Luis M. Bustamante | Director | A | — | — |
| 2024-11-06 | Martha Z. Carnes | Director | A | — | — |
| 2024-11-06 | Liane K Hinrichs | Director | A | — | — |
| 2024-11-06 | JAMES HARRY MILLER | Director | A | — | — |
| 2024-11-06 | Carlin G. Conner | Director | A | — | — |
| 2024-10-02 | JAMES HARRY MILLER | Director | A | — | — |
| 2024-09-12 | JAMES HARRY MILLER | Director | Sell | — | — |
| 2024-09-03 | KEVIN A DURKIN | VP Chief Bus Dev/Strat Officer | MIXED | — | — |
| 2024-09-03 | NANCY E AUSTIN | VP, Chief Admin Officer | MIXED | — | — |
| 2024-09-03 | JOHN R HEWITT | President & CEO | MIXED | — | — |
| 2024-09-03 | SHAWN P PAYNE | President, Matrix Service | MIXED | — | — |
| 2024-09-03 | ALAN R UPDYKE | Chief Operating Officer | MIXED | — | — |
| 2024-09-03 | GLYN A RODGERS | President, Matrix PDM Eng | MIXED | — | — |
| 2024-09-03 | JUSTIN D SHEETS | VP & General Counsel | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 2,544,185 | — |
| — | President & CEO | 581,806 | — |
| — | President & CEO | 156,923 | — |
| — | Chief Operating Officer | 137,139 | — |
| — | President & CEO | 131,498 | — |
| — | VP, Chief Admin Officer | 111,438 | — |
| — | Director | 92,078 | — |
| — | Director | 88,630 | — |
| — | Director | 86,039 | — |
| — | VP Finance & CFO | 82,390 | — |
| — | President, Matrix Service | 81,960 | — |
| — | VP Chief Bus Dev/Strat Officer | 81,046 | — |
| — | SVP, Enterprise Services | 75,218 | — |
| — | Director | 72,202 | — |
| — | Director | 71,183 | — |
| — | Director | 64,288 | — |
| — | President Emeritus Matrix Serv | 61,946 | — |
| — | VP Western Business Unit MSI | 61,393 | — |
| — | President, Matrix NAC | 55,843 | — |
| — | Director | 55,219 | — |
| — | President, Matrix PDM Eng | 55,033 | — |
| — | President, MNAC | 52,863 | — |
| — | CFO | 52,176 | — |
| — | President Matrix SME | 49,418 | — |
| — | Director | 43,400 | — |
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 MTRX quote page; the site-wide leaderboard is on the insider transactions hub.