🕵️ Greenidge Generation Holdings Inc. ($GREEL)
SEC insider & ownership activity, last 12 months · CIK 1844971 · every row links its SEC filing
Over the last 12 months insiders sold $183K against $5.3M of open-market buying. Rogers George Ted III bought $5.0M in discretionary trades (Sep). Atlas Capital Resources GP LLC trimmed 23.1% → 20.0%; Atlas Capital GP LP trimmed 23.1% → 20.0%. One red-flag 8-K in the window: Delisting notice (3.01), Apr 29, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
4 buyers, $5.3M (4 lots) · 3 sellers, $183K (10 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Rogers George Ted III | 1 | $5.0M | 0 | – | Sep 10, 2026 |
| Kovler Jordan | 1 | $100K | 1 | $88K | Sep 10, 2026 |
| Irwin Dale | 1 | $100K | 3 | $54K | Sep 10, 2026 |
| Mulvihill Christian | 1 | $100K | 6 | $41K | Sep 10, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Atlas Capital Resources GP LLC | 20.0% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Atlas Capital GP LP | 20.0% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Andrew M. Bursky | 20.0% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Timothy J. Fazio | 20.0% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Atlas Capital Resources (A9) LP | 14.1% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Conversant PIF VIP Holdco LLC | 9.8% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Michael J. Simanovsky | 9.8% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Conversant Capital LLC | 9.8% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Rogers George Ted III | 8.5% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Eric W. Rosenthal | 8.2% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| MIG REF II INFR, LLC | 8.2% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| BRC Group Holdings, Inc. | 7.1% | Class A | 13G | Sep 11, 2026 | filing ↗ |
| B. Riley Securities, Inc. | 7.1% | Class A | 13G | Sep 11, 2026 | filing ↗ |
| Bryant Riley | 7.1% | Class A | 13G | Sep 11, 2026 | filing ↗ |
| Atlas Capital Resources (A9-PARALLEL) LP | 5.1% | Class A | 13D | Sep 10, 2026 | filing ↗ |
| Atlas Capital Resources (P) LP | exited | Class A | 13D | Sep 10, 2026 | filing ↗ |
| GGH Bridge Investment LP | exited | Class A | 13D | Sep 10, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Sep 10, 2026 | filing ↗ |
| New financial obligation (2.03) | Sep 10, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Sep 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | Sep 10, 2026 | filing ↗ |
| Other events (8.01) | Sep 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 17, 2026 | filing ↗ |
| Earnings (2.02) | Aug 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 14, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jul 20, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 19, 2026 | filing ↗ |
| New financial obligation (2.03) | Jul 19, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jul 19, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jul 19, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Jul 19, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jul 19, 2026 | filing ↗ |
| Other events (8.01) | Jul 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 19, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 24, 2026 | filing ↗ |
| Material agreement (1.01) | May 29, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | May 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 29, 2026 | filing ↗ |
| Other events (8.01) | May 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 18, 2026 | filing ↗ |
| Delisting notice (3.01) | Apr 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 15, 2026 | filing ↗ |
| Other events (8.01) | Apr 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 9, 2026 | filing ↗ |
| Other events (8.01) | Mar 25, 2026 | filing ↗ |