David Shook insider trades: Lyell Immunopharma (LYEL) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where David reports to the SEC
Open-market buys and sales
7 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 10, 2026 | LYEL | ↓ Sell | 1,977 | $12.64 | $25K | Direct | Jun 11, 2026 (1d) |
| Jan 15, 2025 | NKTX | ↓ Sell | 8,638 | $2.20 | $19K | Direct | Jan 17, 2025 (2d) |
| Jun 18, 2024 | NKTX | ↓ Sell | 456 | $5.60 | $3K | Direct | Jun 20, 2024 (2d) |
| Jan 16, 2024 | NKTX | ↓ Sell | 3,552 | $8.74 | $31K | Direct | Jan 18, 2024 (2d) |
| Aug 21, 2023 | NKTX | ↓ Sell | 1,331 | $1.83 | $2K | Direct | Aug 23, 2023 (2d) |
| Jun 20, 2023 | NKTX | ↓ Sell | 439 | $4.85 | $2K | Direct | Jun 22, 2023 (2d) |
| Jan 17, 2023 | NKTX | ↓ Sell | 175 | $5.49 | $961 | Direct | Jan 18, 2023 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other LYEL insiders
Open-market trades in the last 12 months
About David Shook's insider trades
David Shook is Chief Medical Officer at Lyell Immunopharma (LYEL). Since Jan 17, 2023, David has reported no open-market purchases and 7 sales worth $83K on SEC Form 4. In the last 12 months: 1 sale ($25K).
Their filings also include grants and awards (8 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 LYEL insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.