Updated Jul 16, 2026 · Last SEC filing 2026-06-15
MATRIX SERVICE CO (MTRX) has filed 5 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-15. 2 Form 8-K material event filings were reported by MTRX in the last 90 days. 4 Form 144 notices of proposed sale were filed for MTRX stock. InsiderAlpha tracks every MTRX SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000866273 |
|---|
| Form 4 filings (90d) | 5 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 4 |
| Latest Form 4 filing | 2026-06-15 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Cavanah Kevin S | VP Finance & CFO | S — Open-market sale | 1.4K | $14.03 | $20K | SEC | |
| SHEETS JUSTIN D | SVP, Enterprise Services | S — Open-market sale | 17.0K | $13.50 | $229K | SEC | |
| Cavanah Kevin S | VP Finance & CFO | S — Open-market sale | 2.1K | $14.00 | $29K | SEC | |
| Cavanah Kevin S | VP Finance & CFO | S — Open-market sale | 6.5K | $14.13 | $92K | SEC | |
| Cavanah Kevin S | VP Finance & CFO | S — Open-market sale | 50.0K | $14.10 | $705K | SEC | |
| Cavanah Kevin S | VP Finance & CFO | S — Open-market sale | 60.0K | $12.90 | $774K | SEC | |
| HEWITT JOHN R | President & CEO | S — Open-market sale | 36.0K | $12.50 | $450K | SEC | |
| AUSTIN NANCY E | VP, Chief Admin Officer | S — Open-market sale | 4.2K | $11.29 | $47K | SEC | |
| CHANDLER JOHN D | Director | P — Open-market purchase | 2.3K | $12.74 | $29K | SEC | |
| Cavanah Kevin S | VP Finance CFO | M — Option exercise | 4.6K | — | — | SEC | |
| AUSTIN NANCY E | VP, Chief Admin Officer | D — Derivative transaction | 2.2K | $15.13 | $33K | SEC | |
| AUSTIN NANCY E | VP, Chief Admin Officer | F — Tax withholding / forfeiture | 8.8K | $15.13 | $133K | SEC | |
| AUSTIN NANCY E | VP, Chief Admin Officer | F — Tax withholding / forfeiture | 629 | $15.13 | $10K | SEC | |
| Cavanah Kevin S | VP Finance CFO | F — Tax withholding / forfeiture | 1.3K | $15.13 | $20K | SEC | |
| Cavanah Kevin S | VP Finance CFO | D — Derivative transaction | 3.8K | $15.13 | $58K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for MATRIX SERVICE CO (MTRX). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Cavanah Kevin S | 5 | $1.62M |
| HEWITT JOHN R | 1 | $450K |
| SHEETS JUSTIN D | 1 | $229K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MTRX insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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