Stephen J. Hill, Chief Operating Officer of Lyell Immunopharma ($LYEL), made six open market sales of company shares over the past year, totaling $45,477. His latest sale occurred on February 11, 2026. These transactions rank 10,489th among 11,678 insiders in our database, well below the average sale value of $8.6 million across 6.4 transactions per insider. Hill reported no open market purchases in this period.
| 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 | Hill Stephen J. | Chief Operating Officer | S | Common Stock | 1236 | $23.39 | 17,795.0000 | 21,218,217 | 6.49% | 0.01% |
| Feb. 10, 2026 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Option (right to buy) | 65000 | $0.00 | 65,000.0000 | 21,218,217 | 9999.99% | 0.31% |
| Feb. 10, 2026 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | S | Common Stock | 109 | $23.12 | 19,031.0000 | 21,218,217 | 0.57% | 0.00% |
| Feb. 9, 2026 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Common Stock | 4000 | $0.00 | 19,140.0000 | 21,218,217 | 26.42% | 0.02% |
| Nov. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | S | Common Stock | 95 | $16.12 | 15,750.0000 | 295,228,868 | 0.60% | 0.00% |
| Oct. 27, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Option (right to buy) | 75000 | $0.00 | 75,000.0000 | 295,228,868 | 9999.99% | 0.03% |
| Aug. 20, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Common Stock | 8000 | $0.00 | 16,849.0000 | 295,228,868 | 90.41% | 0.00% |
| Aug. 21, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | S | Common Stock | 1004 | $10.54 | 15,845.0000 | 295,228,868 | 5.96% | 0.00% |
| Aug. 11, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | S | Common Stock | 91 | $10.53 | 8,943.0000 | 295,228,868 | 1.01% | 0.00% |
| Aug. 12, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | S | Common Stock | 94 | $10.34 | 8,849.0000 | 295,228,868 | 1.05% | 0.00% |
| Feb. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Option (right to buy) | 56250 | $0.00 | 56,250.0000 | 0 | 9999.99% | 0.00% |
| Feb. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Common Stock | 112500 | $0.00 | 172,899.0000 | 0 | 186.26% | 0.00% |
| Feb. 10, 2025 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Option (right to buy) | 450000 | $0.00 | 450,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 9, 2024 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Stock Option (right to buy) | 400000 | $0.00 | 400,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 9, 2024 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Operating Officer | A | Common Stock | 40000 | $0.00 | 48,928.0000 | 0 | 448.03% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | D | Stock Option (right to buy) | 165000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | D | Stock Option (right to buy) | 450000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | A | Stock Option (right to buy) | 100000 | $0.00 | 100,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | D | Stock Option (right to buy) | 100000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | A | Stock Option (right to buy) | 85000 | $0.00 | 85,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | D | Stock Option (right to buy) | 85000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | A | Stock Option (right to buy) | 700000 | $0.00 | 700,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | D | Stock Option (right to buy) | 700000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | A | Stock Option (right to buy) | 450000 | $0.00 | 450,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | A | Stock Option (right to buy) | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | A | Stock Option (right to buy) | 165000 | $0.00 | 165,000.0000 | 0 | 9999.99% | 0.00% |
| Nov. 16, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | D | Stock Option (right to buy) | 500000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 24, 2023 | Lyell Immunopharma, Inc. | $LYEL | Hill Stephen J. | Chief Technical Ops. Officer | A | Option (right to buy) | 900000 | $0.00 | 900,000.0000 | 0 | 9999.99% | 0.00% |