Seely Lynn, President and CEO of Lyell Immunopharma ($LYEL), made one open market purchase of shares in the last year, totaling $106,190, with the most recent on March 14, 2025. This ranks 2,084th among 4,983 insiders, below the $1.5 million average. Lynn conducted six open market sales totaling $276,000, most recently on February 11, 2026, ranking 7,740th out of 11,678 insiders versus the $8.6 million average.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 11, 2026 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | S | Common Stock | 7455 | $23.39 | 74,266.0000 | 21,218,217 | 9.12% | 0.04% |
| Feb. 10, 2026 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Option (right to buy) | 155000 | $0.00 | 155,000.0000 | 21,218,217 | 9999.99% | 0.73% |
| Feb. 10, 2026 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | S | Common Stock | 438 | $23.12 | 81,721.0000 | 21,218,217 | 0.53% | 0.00% |
| Feb. 9, 2026 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Common Stock | 20000 | $0.00 | 82,159.0000 | 21,218,217 | 32.18% | 0.09% |
| Nov. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | S | Common Stock | 412 | $16.11 | 67,159.0000 | 295,228,868 | 0.61% | 0.00% |
| Oct. 27, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Option (right to buy) | 175000 | $0.00 | 175,000.0000 | 295,228,868 | 9999.99% | 0.06% |
| Aug. 21, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | S | Common Stock | 7257 | $10.54 | 67,571.0000 | 295,228,868 | 9.70% | 0.00% |
| Aug. 20, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Common Stock | 40000 | $0.00 | 74,828.0000 | 295,228,868 | 114.85% | 0.01% |
| Aug. 11, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | S | Common Stock | 391 | $10.53 | 35,234.0000 | 295,228,868 | 1.10% | 0.00% |
| Aug. 12, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | S | Common Stock | 406 | $10.34 | 34,828.0000 | 295,228,868 | 1.15% | 0.00% |
| March 14, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | P | Common Stock | 175000 | $0.61 | 712,500.0000 | 295,228,868 | 32.56% | 0.06% |
| Feb. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Option (right to buy) | 1350000 | $0.00 | 1,350,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Option (right to buy) | 168750 | $0.00 | 168,750.0000 | 0 | 9999.99% | 0.00% |
| Feb. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Common Stock | 337500 | $0.00 | 537,500.0000 | 0 | 168.75% | 0.00% |
| Feb. 9, 2024 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Common Stock | 200000 | $0.00 | 200,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | D | Stock Option (right to buy) | 7500000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Seely Lynn | President and CEO | A | Stock Option (right to buy) | 7500000 | $0.00 | 7,500,000.0000 | 0 | 9999.99% | 0.00% |