Clay B Siegall insider trades: Shattuck Labs (STTK) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Clay reports to the SEC
and 2 more companies
Open-market buys and sales
159 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 9, 2026 | STTK | ↑ Buy | 62,500 | $4.00 | $250K | Direct | Jun 11, 2026 (2d) |
| Mar 27, 2026 | IMNM | ↑ Buy | 25,450 | $19.67 | $501K | Direct | Mar 31, 2026 (4d) |
| Dec 30, 2025 | IMNM | ↑ Buy | 4,729 | $21.15 | $100K | Direct | Dec 30, 2025 (0d) |
| Dec 19, 2025 | IMNM | ↑ Buy | 7,278 | $20.48 | $149K | Direct | Dec 22, 2025 (3d) |
| Dec 18, 2025 | IMNM | ↑ Buy | 46,511 | $21.50 | $1000K | Direct | Dec 18, 2025 (0d) |
| Mar 26, 2025 | IMNM | ↑ Buy | 137,100 | $7.29 | $999K | Direct | Mar 26, 2025 (0d) |
| Jan 31, 2025 | IMNM | ↑ Buy | 150,000 | $7.75 | $1.2M | Direct | Feb 3, 2025 (3d) |
| Nov 22, 2024 | IMNM | ↑ Buy | 100,000 | $9.62 | $962K | Direct | Nov 25, 2024 (3d) |
| May 21, 2024 | IMNM | ↑ Buy | 100,000 | $13.88 | $1.4M | Direct | May 21, 2024 (0d) |
| Oct 2, 2023 | IMNM | ↑ Buy | 169,204 | $5.91 | $1000K | Direct | Oct 4, 2023 (2d) |
| May 12, 2022 | SGEN | ↓ Sell | 17,043 | $125.69 | $2.1M | Direct | May 13, 2022 (1d) |
| Apr 20, 2022 | SGEN | ↓ Sell | 1,885 | $144.32 | $272K | Direct | Apr 22, 2022 (2d) |
| Apr 7, 2022 | SGEN | ↓ Sell | 17,043 | $154.23 | $2.6M | Direct | Apr 8, 2022 (1d) |
| Mar 7, 2022 | SGEN | ↓ Sell | 17,043 | $134.35 | $2.3M | Direct | Mar 9, 2022 (2d) |
| Feb 7, 2022 | SGEN | ↓ Sell | 17,043 | $139.97 | $2.4M | Direct | Feb 9, 2022 (2d) |
| Jan 7, 2022 | SGEN | ↓ Sell | 17,044 | $144.73 | $2.5M | Direct | Jan 11, 2022 (4d) |
| Dec 20, 2021 | SGEN | ↓ Sell | 1,227 | $149.85 | $184K | Direct | Dec 22, 2021 (2d) |
| Dec 7, 2021 | SGEN | ↓ Sell | 45,449 | $148.66 | $6.8M | Direct | Dec 9, 2021 (2d) |
| Aug 31, 2021 | SGEN | ↓ Sell | 14,351 | $167.52 | $2.4M | Direct | Sep 2, 2021 (2d) |
| Aug 31, 2021 | SGEN | ↓ Sell | 60,432 | $167.90 | $10.1M | Direct | Aug 31, 2021 (0d) |
| Aug 16, 2021 | SGEN | ↓ Sell | 2,789 | $154.55 | $431K | Direct | Aug 18, 2021 (2d) |
| Aug 6, 2021 | SGEN | ↓ Sell | 29,353 | $162.41 | $4.8M | Direct | Aug 6, 2021 (0d) |
| Jul 2, 2021 | SGEN | ↓ Sell | 29,353 | $157.04 | $4.6M | Direct | Jul 6, 2021 (4d) |
| Jun 3, 2021 | SGEN | ↓ Sell | 29,353 | $144.51 | $4.2M | Direct | Jun 4, 2021 (1d) |
| May 6, 2021 | SGEN | ↓ Sell | 29,353 | $134.97 | $4.0M | Direct | May 7, 2021 (1d) |
| Apr 9, 2021 | SGEN | ↓ Sell | 29,353 | $143.79 | $4.2M | Direct | Apr 9, 2021 (0d) |
| Mar 4, 2021 | SGEN | ↓ Sell | 29,353 | $145.74 | $4.3M | Direct | Mar 5, 2021 (1d) |
| Feb 4, 2021 | SGEN | ↓ Sell | 29,353 | $165.57 | $4.9M | Direct | Feb 5, 2021 (1d) |
| Jan 7, 2021 | SGEN | ↓ Sell | 29,353 | $172.44 | $5.1M | Direct | Jan 8, 2021 (1d) |
| Dec 7, 2020 | SGEN | ↓ Sell | 37,455 | $180.15 | $6.7M | Direct | Dec 8, 2020 (1d) |
| Dec 3, 2020 | SGEN | ↓ Sell | 21,253 | $179.28 | $3.8M | Direct | Dec 4, 2020 (1d) |
| Aug 31, 2020 | SGEN | ↓ Sell | 14,351 | $155.69 | $2.2M | Direct | Sep 2, 2020 (2d) |
| Aug 18, 2020 | SGEN | ↓ Sell | 27,060 | $158.17 | $4.3M | Direct | Aug 20, 2020 (2d) |
| Aug 10, 2020 | SGEN | ↓ Sell | 28,475 | $156.74 | $4.5M | Direct | Aug 13, 2020 (3d) |
| Aug 10, 2020 | RARE | ↓ Sell | 34,750 | $85.37 | $3.0M | Direct | Aug 11, 2020 (1d) |
| Jul 8, 2020 | SGEN | ↓ Sell | 28,472 | $175.08 | $5.0M | Direct | Jul 10, 2020 (2d) |
| Jun 8, 2020 | SGEN | ↓ Sell | 28,472 | $148.77 | $4.2M | Direct | Jun 10, 2020 (2d) |
| May 8, 2020 | SGEN | ↓ Sell | 28,472 | $161.01 | $4.6M | Direct | May 12, 2020 (4d) |
| May 6, 2020 | SGEN | ↓ Sell | 50,000 | $165.65 | $8.3M | Direct | May 7, 2020 (1d) |
| Apr 8, 2020 | SGEN | ↓ Sell | 28,472 | $120.01 | $3.4M | Direct | Apr 10, 2020 (2d) |
| Mar 9, 2020 | SGEN | ↓ Sell | 28,472 | $110.09 | $3.1M | Direct | Mar 11, 2020 (2d) |
| Feb 10, 2020 | SGEN | ↓ Sell | 28,472 | $114.61 | $3.3M | Direct | Feb 12, 2020 (2d) |
| Jan 8, 2020 | SGEN | ↓ Sell | 28,472 | $111.32 | $3.2M | Direct | Jan 10, 2020 (2d) |
| Dec 9, 2019 | SGEN | ↓ Sell | 28,472 | $114.56 | $3.3M | Direct | Dec 10, 2019 (1d) |
| Nov 8, 2019 | SGEN | ↓ Sell | 28,472 | $107.61 | $3.1M | Direct | Nov 12, 2019 (4d) |
| Oct 8, 2019 | SGEN | ↓ Sell | 28,472 | $82.47 | $2.3M | Direct | Oct 10, 2019 (2d) |
| Sep 9, 2019 | SGEN | ↓ Sell | 28,472 | $68.33 | $1.9M | Direct | Sep 10, 2019 (1d) |
| Sep 3, 2019 | SGEN | ↓ Sell | 9,693 | $70.80 | $686K | Direct | Sep 4, 2019 (1d) |
| Aug 28, 2019 | SGEN | ↓ Sell | 28,951 | $73.21 | $2.1M | Direct | Aug 30, 2019 (2d) |
| Aug 8, 2019 | SGEN | ↓ Sell | 20,149 | $76.52 | $1.5M | Direct | Aug 9, 2019 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other STTK insiders
Open-market trades in the last 12 months
About Clay B Siegall's insider trades
Clay B Siegall is an insider at Shattuck Labs (STTK). Since Aug 2, 2005, Clay has reported 10 open-market purchases worth $7.5M and 149 sales worth $235.4M on SEC Form 4. In the last 12 months: 5 buys ($2.0M).
Their filings also include option exercises (139 filings), grants and awards (50 filings), gifts (7 filings), shares returned to the company (3 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every STTK insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.