🕵️ NINE Energy Service, Inc. ($NINE)
SEC insider & ownership activity, last 12 months · CIK 1532286 · every row links its SEC filing
Over the last 12 months insiders sold $889K with no open-market buying against it. Monroe William sold $682K in discretionary trades (Apr). 3 red-flag 8-Ks in the window, most recently Bankruptcy (1.03), Mar 4, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 3 sellers, $889K (3 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Monroe William | 0 | – | 1 | $682K | Apr 9, 2025 |
| Ann G. Fox | 0 | – | 1 | $174K | Aug 8, 2025 |
| Sirkes Guy | 0 | – | 1 | $32K | Aug 8, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Philosophy Capital Management LLC | 18.3% | 13G | Mar 11, 2026 | filing ↗ | |
| Jacob Rubin | 18.3% | 13G | Mar 11, 2026 | filing ↗ | |
| MacKay Shields LLC | 11.9% | 13G | Mar 31, 2026 | filing ↗ | |
| NYLI MacKay High Yield Corporate BOND Fund | 10.1% | 13G | Mar 31, 2026 | filing ↗ | |
| Adage Capital Management, L.P. | 9.7% | 13G | Jul 9, 2026 | filing ↗ | |
| Robert Atchinson | 9.7% | 13G | Jul 9, 2026 | filing ↗ | |
| Phillip Gross | 9.7% | 13G | Jul 9, 2026 | filing ↗ | |
| Castleknight Master Fund LP | 8.3% | 13G | Apr 9, 2026 | filing ↗ | |
| Castleknight Fund GP LLC | 8.3% | 13G | Apr 9, 2026 | filing ↗ | |
| Castleknight Management LP | 8.3% | 13G | Apr 9, 2026 | filing ↗ | |
| Castleknight Management GP LLC | 8.3% | 13G | Apr 9, 2026 | filing ↗ | |
| Weitman Capital LLC | 8.3% | 13G | Apr 9, 2026 | filing ↗ | |
| Aaron Weitman | 8.3% | 13G | Apr 9, 2026 | filing ↗ | |
| Philosophy Capital Partners, LP | 6.6% | 13G | Mar 11, 2026 | filing ↗ | |
| Algebris Investments (US) Inc. | 6.0% | 13G | Jul 2, 2026 | filing ↗ | |
| Jeffrey L. Gendell | 5.6% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Ann G. Fox | $174K | Aug 8, 2025 | filing ↗ |
| Sirkes Guy | $32K | Aug 8, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | May 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 22, 2026 | filing ↗ |
| Earnings (2.02) | May 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 13, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 20, 2026 | filing ↗ |
| Other events (8.01) | Mar 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 25, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 23, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 9, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 4, 2026 | filing ↗ |
| Agreement terminated (1.02) | Mar 4, 2026 | filing ↗ |
| Bankruptcy (1.03) | Mar 4, 2026 | filing ↗ |
| New financial obligation (2.03) | Mar 4, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Mar 4, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Mar 4, 2026 | filing ↗ |
| Change of control (5.01) | Mar 4, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 4, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Mar 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 4, 2026 | filing ↗ |
| Material agreement (1.01) | Feb 2, 2026 | filing ↗ |
| New financial obligation (2.03) | Feb 2, 2026 | filing ↗ |
| Delisting notice (3.01) | Feb 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 2, 2026 | filing ↗ |
| Material agreement (1.01) | Feb 1, 2026 | filing ↗ |
| Bankruptcy (1.03) | Feb 1, 2026 | filing ↗ |