🕵️ Shattuck LABS, Inc. ($STTK)
SEC insider & ownership activity, last 12 months · CIK 1680367 · every row links its SEC filing
Over the last 12 months insiders sold $592K against $250K of open-market buying. Arundathy N. Pandite sold $409K through a 10b5-1 trading plan in 2 lots (May–Jun). 2 planned sales are pending, the largest $165K (Abhinav A. Shukla). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $250K (1 lots) · 2 sellers, $592K (6 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Arundathy N. Pandite | 0 | – | 2 | $409K | Jun 30, 2026 |
| Clay B. Siegall | 1 | $250K | 0 | – | Jun 9, 2026 |
| Abhinav A. Shukla | 0 | – | 4 | $183K | Jul 2, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| T. ROWE Price Investment Management, Inc. | 15.3% | 13G | Aug 14, 2026 | filing ↗ | |
| Orbimed Advisors LLC | 10.0% | 13D | Jun 11, 2026 | filing ↗ | |
| Redmile Group, LLC | 9.9% | 13D | Jul 15, 2026 | filing ↗ | |
| Jeremy C. Green | 9.9% | 13D | Jul 15, 2026 | filing ↗ | |
| Prosight Management, LP | 9.9% | 13G | Nov 13, 2025 | filing ↗ | |
| Prosight Partners, LLC | 9.9% | 13G | Nov 13, 2025 | filing ↗ | |
| W. Lawrence Hawkins | 9.9% | 13G | Nov 13, 2025 | filing ↗ | |
| Adage Capital Management, L.P. | 9.8% | 13G | Feb 12, 2025 | filing ↗ | |
| Robert Atchinson | 9.8% | 13G | Feb 12, 2025 | filing ↗ | |
| Phillip Gross | 9.8% | 13G | Feb 12, 2025 | filing ↗ | |
| OrbiMed Capital GP IX LLC | 8.3% | 13D | Jun 11, 2026 | filing ↗ | |
| Redmile Biopharma Investments II, L.P. | 8.1% | 13D | Jul 15, 2026 | filing ↗ | |
| DEEP Track Capital, LP | 5.2% | 13G | Jun 17, 2026 | filing ↗ | |
| DEEP Track Biotechnology Master Fund, Ltd. | 5.2% | 13G | Jun 17, 2026 | filing ↗ | |
| David Kroin | 5.2% | 13G | Jun 17, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Abhinav A. Shukla | $3K | Jul 2, 2026 | filing ↗ |
| Abhinav A. Shukla | $707 | Jul 1, 2026 | filing ↗ |
| Abhinav A. Shukla | $165K | Jun 30, 2026 | filing ↗ |
| Abhinav A. Shukla | $14K | May 12, 2026 | filing ↗ |
| Arunthathy Pandite | $421K | May 12, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 11, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 8, 2026 | filing ↗ |
| Other events (8.01) | Jun 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 8, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 28, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 28, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | Mar 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 5, 2026 | filing ↗ |
| Other events (8.01) | Feb 5, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 22, 2026 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |