🕵️ Granite Ridge Resources, Inc. ($GRNT)
SEC insider & ownership activity, last 12 months · CIK 1928446 · every row links its SEC filing
Over the last 12 months insiders bought $1.4M with no open-market selling against it. Perry Griffin bought $549K in discretionary trades (May). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
7 buyers, $1.4M (35 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Perry Griffin | 1 | $549K | 0 | – | May 18, 2026 |
| Miller Matthew Reade | 8 | $307K | 0 | – | Sep 11, 2026 |
| McCartney John | 15 | $287K | 0 | – | Sep 1, 2026 |
| Farquharson Tyler | 2 | $117K | 0 | – | May 13, 2026 |
| Kettler Ronald Kyle | 4 | $102K | 0 | – | Sep 4, 2026 |
| Lazarine Kirk | 2 | $50K | 0 | – | Nov 21, 2025 |
| Michele J. Everard | 3 | $36K | 0 | – | Aug 13, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| GREP GP III, LLC | 39.2% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Energy Partners GP III, L.P. | 39.2% | 13D | Aug 19, 2026 | filing ↗ | |
| GREP GP III Holdings, LLC | 31.3% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Energy Partners GP Iii-B, L.P. | 21.8% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Energy Fund Iii-B Holdings, LP | 21.8% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Energy Fund Iii-B, LP | 21.8% | 13D | Aug 19, 2026 | filing ↗ | |
| GREP Holdco Iii-B Holdings, LLC | 21.8% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Energy Partners GP Iii-A, L.P. | 9.5% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Energy Fund Iii-A, LP | 9.5% | 13D | Aug 19, 2026 | filing ↗ | |
| GREP Holdco Iii-A, LLC | 9.5% | 13D | Aug 19, 2026 | filing ↗ | |
| Matthew Reade Miller | 7.4% | 13D | Aug 19, 2026 | filing ↗ | |
| Thaddeus Darden | 6.4% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Energy Fund II-C, LLC | 5.9% | 13D | Aug 19, 2026 | filing ↗ | |
| GREY Rock Management Partners V, LLC | 5.9% | 13D | Aug 19, 2026 | filing ↗ | |
| Hamilton LANE Advisors, L.L.C. | 5.1% | 13G | Aug 10, 2026 | filing ↗ | |
| Regents of the University of Michigan | 5.1% | 13G | Aug 10, 2026 | filing ↗ | |
| Eric Holley | exited | 13D | Aug 19, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Aug 19, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 19, 2026 | filing ↗ |
| Other events (8.01) | Aug 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 19, 2026 | filing ↗ |
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 22, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 22, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | Mar 5, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 5, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 4, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 4, 2026 | filing ↗ |
| Material agreement (1.01) | Dec 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 10, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |