24 insiders reported 68 Form 4 transactions for Lyell Immunopharma, Inc. (LYEL) over the past 18 months (most recent 2026-08-11). Recent activity: Seely Lynn (President and CEO) Sell 390 shares, Hill Stephen J. (Chief Operating Officer) Sell 89 shares, Lee Gary K. (Chief Scientific Officer) Sell 131 shares, Bulis Veronica Sanchez (VP, Corporate Controller) Sell 621 shares, Innovative Cellular Therapeutics Holdings Ltd (10% Owner) Sell 38,500 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-11 | Seely Lynn | President and CEO | Sell | 390 | $5,593 |
| 2026-08-11 | Hill Stephen J. | Chief Operating Officer | Sell | 89 | $1,276 |
| 2026-08-11 | Lee Gary K. | Chief Scientific Officer | Sell | 131 | $1,879 |
| 2026-08-11 | Bulis Veronica Sanchez | VP, Corporate Controller | Sell | 621 | $8,905 |
| 2026-07-27 | Innovative Cellular Therapeutics Holdings Ltd | 10% Owner | Sell | 38,500 | $0 |
| 2026-07-27 | Innovative Cellular Therapeutics Holdings Ltd | 10% Owner | Sell | 44,000 | $0 |
| 2026-07-20 | Innovative Cellular Therapeutics Holdings Ltd | 10% Owner | Sell | 10 | $137 |
| 2026-07-17 | Innovative Cellular Therapeutics Holdings Ltd | 10% Owner | Sell | 10 | $137 |
| 2026-07-01 | Innovative Cellular Therapeutics Holdings Ltd | 10% Owner | Sell | 76,000 | $0 |
| 2026-06-18 | Innovative Cellular Therapeutics Holdings Ltd | 10% Owner | Sell | 66,500 | $0 |
| 2026-06-15 | Lee Gary K. | Chief Scientific Officer | Sell | 130 | $2,460 |
| 2026-06-15 | Hill Stephen J. | Chief Operating Officer | Sell | 89 | $1,684 |
| 2026-06-15 | Seely Lynn | President and CEO | Sell | 388 | $7,337 |
| 2026-06-15 | Bulis Veronica Sanchez | VP, Corporate Controller | Sell | 217 | $4,103 |
| 2026-06-11 | Shook David | Chief Medical Officer | Sell | 1,977 | $24,989 |
| 2026-03-09 | GILLIS STEVEN | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | CRANDELL KEITH | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | NELSEN ROBERT | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | BYBEE CLINTON | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | BERNS PAUL L | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | Burow Kristina | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | ARCH Venture Fund XIII, L.P. | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | ARCH Venture Partners XIII, LLC | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | ARCH Venture Partners XIII, L.P. | Insider | Buy | 488,090 | $12.5M |
| 2026-03-09 | ARCH Venture Fund IX, L.P. | Insider | Buy | 488,090 | $12.5M |
Source: SEC Form 4 filings · as of 2026-08-11