🕵️ Cleanspark, Inc. ($CLSK)
SEC insider & ownership activity, last 12 months · CIK 827876 · every row links its SEC filing
Over the last 12 months insiders sold $1.9M with no open-market buying against it. Wood Thomas Leigh sold $997K in discretionary trades (Dec). 7 planned sales are pending, the largest $5.5M (Schultz S. Matthew). No red-flag 8-Ks in the window.
🚨 13 signals active —
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 3 sellers, $1.9M (6 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Wood Thomas Leigh | 0 | – | 1 | $997K | Dec 23, 2025 |
| Cavaleri Amanda | 0 | – | 1 | $496K | Dec 4, 2025 |
| Monnig Taylor | 0 | – | 4 | $394K | Sep 8, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15.5% | 13G | Apr 3, 2025 | filing ↗ | |
| Bank of Nova Scotia | 5.6% | 13G | Jul 15, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.1% | 13G | Apr 29, 2026 | filing ↗ | |
| D. E. SHAW & Co., L.P. | 5.0% | 13G | Jul 17, 2026 | filing ↗ | |
| D. E. SHAW & Co., L.L.C. | 5.0% | 13G | Jul 17, 2026 | filing ↗ | |
| David E. Shaw | 5.0% | 13G | Jul 17, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Carson Brian Jay | $761K | Sep 4, 2026 | filing ↗ |
| Monnig Taylor | $1.8M | Sep 4, 2026 | filing ↗ |
| Garrison Scott Eugene | $1.7M | Sep 4, 2026 | filing ↗ |
| Vecchiarelli Gary Anthony | $2.0M | Sep 4, 2026 | filing ↗ |
| Schultz S. Matthew | $5.5M | Sep 4, 2026 | filing ↗ |
| Monnig Taylor | $3K | Aug 14, 2026 | filing ↗ |
| Garrison Scott Eugene | $14K | Aug 14, 2026 | filing ↗ |
| Vecchiarelli Gary Anthony | $7K | Aug 14, 2026 | filing ↗ |
| Schultz S. Matthew | $104K | Aug 14, 2026 | filing ↗ |
| Monnig Taylor | $3K | May 14, 2026 | filing ↗ |
| Garrison Scott Eugene | $17K | May 14, 2026 | filing ↗ |
| Vecchiarelli Gary Anthony | $8K | May 14, 2026 | filing ↗ |
| Schultz S. Matthew | $120K | May 14, 2026 | filing ↗ |
| Carson Brian Jay | $60K | Feb 18, 2026 | filing ↗ |
| Monnig Taylor | $167K | Feb 18, 2026 | filing ↗ |
| Garrison Scott Eugene | $198K | Feb 18, 2026 | filing ↗ |
| Vecchiarelli Gary Anthony | $260K | Feb 18, 2026 | filing ↗ |
| Schultz S. Matthew | $966K | Feb 18, 2026 | filing ↗ |
| Wood Thomas Leigh | $982K | Dec 23, 2025 | filing ↗ |
| Schultz S. Matthew | $127K | Dec 5, 2025 | filing ↗ |
| Vecchiarelli Gary Anthony | $9K | Dec 5, 2025 | filing ↗ |
| Garrison Scott Eugene | $17K | Dec 5, 2025 | filing ↗ |
| Monnig Taylor | $3K | Dec 5, 2025 | filing ↗ |
| Cavaleri Amanda | $496K | Dec 4, 2025 | filing ↗ |
| Zachary Bradford | $8.5M | Oct 2, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Reg FD disclosure (7.01) | Sep 17, 2026 | filing ↗ |
| Other events (8.01) | Sep 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 17, 2026 | filing ↗ |
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 10, 2026 | filing ↗ |
| Other events (8.01) | Jul 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 10, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Mar 19, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Mar 19, 2026 | filing ↗ |
| Other events (8.01) | Mar 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 19, 2026 | filing ↗ |
| Shareholder vote (5.07) | Mar 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 3, 2026 | filing ↗ |
| Earnings (2.02) | Feb 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 5, 2026 | filing ↗ |
| Earnings (2.02) | Nov 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 25, 2025 | filing ↗ |
| Material agreement (1.01) | Nov 13, 2025 | filing ↗ |
| New financial obligation (2.03) | Nov 13, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Nov 13, 2025 | filing ↗ |
| Other events (8.01) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Other events (8.01) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 10, 2025 | filing ↗ |
| Other events (8.01) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |