Updated Jul 16, 2026 · Last SEC filing 2026-07-14
STERLING INFRASTRUCTURE, INC. (STRL) has filed 12 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-14. 7 Form 8-K material event filings were reported by STRL in the last 90 days. 2 Form 144 notices of proposed sale were filed for STRL stock. InsiderAlpha tracks every STRL SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000874238 |
|---|
| Form 4 filings (90d) | 12 |
|---|---|
| Form 8-K filings (90d) | 7 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-07-14 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| GRINDSTAFF NICHOLAS M | Chief Financial Officer (CFO) | F — Tax withholding / forfeiture | 556 | $682.29 | $379K | SEC | |
| Wolf Mark D. | General Counsel, Corporate Sec | S — Open-market sale | 2.5K | $888.00 | $2.22M | SEC | |
| Dill Julie | Director | G — Bona-fide gift | 325 | $0.00 | — | SEC | |
| CUTILLO JOSEPH A | Chief Executive Officer | A — Grant or award | 40.0K | $0.00 | — | SEC | |
| Wilson Dwayne Andree | Director | A — Grant or award | 181 | $0.00 | — | SEC | |
| Schulz David S. | Director | A — Grant or award | 181 | $0.00 | — | SEC | |
| ROSE B ANDREW | Director | A — Grant or award | 181 | $0.00 | — | SEC | |
| CREGG ROGER A | Director | A — Grant or award | 181 | $0.00 | — | SEC | |
| Bosway William T | Director | A — Grant or award | 181 | $0.00 | — | SEC | |
| Dill Julie | Director | A — Grant or award | 181 | $0.00 | — | SEC | |
| O'Brien Dana C. | Director | A — Grant or award | 181 | $0.00 | — | SEC | |
| CUTILLO JOSEPH A | Chief Executive Officer | S — Open-market sale | 50.0K | $497.57 | $24.88M | SEC | |
| CUTILLO JOSEPH A | Chief Executive Officer | S — Open-market sale [10b5-1] | 50.0K | $453.48 | $22.67M | SEC | |
| Wilson Dwayne Andree | Director | S — Open-market sale [10b5-1] | 1.3K | $405.95 | $511K | SEC | |
| CUTILLO JOSEPH A | Chief Executive Officer | S — Open-market sale [10b5-1] | 47.6K | $416.21 | $19.81M | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for STERLING INFRASTRUCTURE, INC. (STRL). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| CUTILLO JOSEPH A | 2 | $24.88M |
| Dill Julie | 2 | — |
| Schulz David S. | 1 | — |
| GRINDSTAFF NICHOLAS M | 1 | $379K |
| CREGG ROGER A | 1 | — |
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 STRL 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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