
Lyell Immunopharma, Inc.
LYELHealthcare|Biotechnology|US
$14.86
-0.14 (-0.93%)
DCF Value
$0.36
Tangible Book / Share
$7.89
Cash / Share
$7.25
Ownership Breakdown
59.7%
Float
24.5M
Shares Outstanding
14.6M
Float Shares
Major Holders (37)
Combined: 294.7%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
| Holder | Type | % of Class | Shares | Filed | Filing |
|---|---|---|---|---|---|
| ARCH Venture Partners XIII, L.P. | Partnership | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| ARCH Venture Partners XIII, LLC | Other | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| Keith Crandell | Individual | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| Robert Nelsen | Individual | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| Kristina Burow | Individual | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| Steven Gillis | Individual | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| ARCH Venture Partners IX Overage, L.P. | Partnership | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| ARCH Venture Partners IX, L.P. | Partnership | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| ARCH Venture Partners IX, LLC | Other | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| ARCH Venture Fund IX, L.P. | Partnership | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| ARCH Venture Fund IX Overage, L.P. | Partnership | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| ARCH Venture Fund XIII, L.P. | Partnership | 13.90% | 3,247,162 | May 15, 2026 | 13D/G |
| Innovative Cellular Therapeutics Holdings Limited | Other | 12.30% | 3,000,000 | Jun 18, 2026 | 13D/G |
| Innovative Cellular Therapeutics Holdings Ltd | Other | 9.80% | 1,900,000 | Nov 13, 2025 | 13D/G |
| Clinton Bybee | Individual | 7.80% | 1,820,634 | May 15, 2026 | 13D/G |
| Euler Managers Limited | Corporation | 6.71% | 1,426,528 | Apr 21, 2026 | 13D/G |
| Antonis Indianos | Individual | 6.71% | 1,426,528 | Apr 21, 2026 | 13D/G |
| Euler Fund, L.P. | Partnership | 6.71% | 1,426,528 | Apr 21, 2026 | 13D/G |
| James Tananbaum | Individual | 6.70% | 19,478,893 | Feb 14, 2025 | 13D/G |
| Explore Investments LLC | Other | 6.60% | 1,529,054 | May 8, 2026 | 13D/G |
| Jeffrey P. Bezos | Individual | 6.60% | 1,529,054 | May 8, 2026 | 13D/G |
| Paul Berns | Individual | 6.10% | 1,426,528 | May 15, 2026 | 13D/G |
| William H. Gates III | Individual | 5.60% | 1,040,964 | Aug 1, 2025 | 13D/G |
| Gates Frontier, LLC | Other | 5.60% | 1,040,964 | Aug 1, 2025 | 13D/G |
| BlackRock, Inc. | Holding company | 4.50% | 13,265,869 | Feb 5, 2025 | 13D/G |
| MWG Caph Ltd | Corporation | 4.30% | 1,008,116 | May 11, 2026 | 13D/G |
| Milky Way Investments Group Ltd. | Corporation | 4.30% | 1,008,116 | May 11, 2026 | 13D/G |
| Orland Properties Limited | Corporation | 3.93% | 754,698 | Nov 12, 2025 | 13D/G |
| Gemini GP Limited | Corporation | 3.93% | 754,698 | Nov 12, 2025 | 13D/G |
| Gemini Investments, L.P. | Partnership | 3.93% | 754,698 | Nov 12, 2025 | 13D/G |
| Newton (PTC) Limited | Corporation | 3.93% | 754,698 | Nov 12, 2025 | 13D/G |
| The Vanguard Group | Investment adviser | 3.93% | 10,071,482 | Nov 12, 2024 | 13D/G |
| James B. Tananbaum | Individual | 2.70% | 653,328 | Aug 14, 2026 | 13D/G |
| Foresite Capital Management V, LLC | Other | 1.90% | 476,386 | Aug 14, 2026 | 13D/G |
| Foresite Capital Fund V, L.P. | Partnership | 1.90% | 476,386 | Aug 14, 2026 | 13D/G |
| Foresite Capital Opportunity Management V, LLC | Other | 0.70% | 176,942 | Aug 14, 2026 | 13D/G |
| Foresite Capital Opportunity Fund V, L.P. | Partnership | 0.70% | 176,942 | Aug 14, 2026 | 13D/G |
Insider Trades (100)
Last 4 quarters: 6,277,704 acquired · 253,319 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| ARCH Venture Partners IX, LLC | 10 percent owner | Nov 4, 2026 | BUY | 2,321,262 | $10.77 | $25.0M | Form 4 |
| ARCH Venture Fund XIII, L.P. | 10 percent owner | Nov 4, 2026 | BUY | 2,321,262 | $10.77 | $25.0M | Form 4 |
| Aguirre Jarrad Mattieu | Chief Medical Officer | Oct 12, 2026 | SELL | 422 | $8.63 | $3.6K | Form 4 |
| Shook David | Chief Medical Officer | Sep 10, 2026 | SELL | 500 | $12.70 | $6.3K | Form 4 |
| Aguirre Jarrad Mattieu | Chief Medical Officer | Sep 10, 2026 | AWARD | 47,500 | $12.20 | $579.5K | Form 4 |
| Aguirre Jarrad Mattieu | Chief Medical Officer | Aug 31, 2026 | OTHER | 0 | — | — | Form 4 |
| Aguirre Jarrad Mattieu | Chief Medical Officer | Aug 31, 2026 | OTHER | 46,249 | $11.64 | $538.3K | Form 4 |
| Aguirre Jarrad Mattieu | Chief Medical Officer | Aug 31, 2026 | OTHER | 35,000 | $23.71 | $829.9K | Form 4 |
| Aguirre Jarrad Mattieu | Chief Medical Officer | Aug 31, 2026 | OTHER | 15,000 | $19.20 | $288.0K | Form 4 |
| Seely Lynn | director, officer: President and CEO | Aug 21, 2026 | SELL | 9,589 | $15.54 | $149.0K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Aug 21, 2026 | SELL | 989 | $15.54 | $15.4K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Aug 21, 2026 | SELL | 1,457 | $15.54 | $22.6K | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Aug 10, 2026 | SELL | 621 | $14.34 | $8.9K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Aug 10, 2026 | SELL | 131 | $14.34 | $1.9K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Aug 10, 2026 | SELL | 89 | $14.34 | $1.3K | Form 4 |
| Seely Lynn | director, officer: President and CEO | Aug 10, 2026 | SELL | 390 | $14.34 | $5.6K | Form 4 |
| Innovative Cellular Therapeutics Holdings Ltd | 10 percent owner | Jul 27, 2026 | DISPOSED | 44,000 | — | — | Form 4 |
| Innovative Cellular Therapeutics Holdings Ltd | 10 percent owner | Jul 27, 2026 | DISPOSED | 38,500 | — | — | Form 4 |
| Innovative Cellular Therapeutics Holdings Ltd | 10 percent owner | Jul 17, 2026 | SELL | 10 | $13.70 | $137.00 | Form 4 |
| Innovative Cellular Therapeutics Holdings Ltd | 10 percent owner | Jul 16, 2026 | SELL | 10 | $13.73 | $137.30 | Form 4 |
| Innovative Cellular Therapeutics Holdings Ltd | 10 percent owner | Jun 29, 2026 | DISPOSED | 76,000 | — | — | Form 4 |
| Innovative Cellular Therapeutics Holdings Ltd | 10 percent owner | Jun 15, 2026 | DISPOSED | 66,500 | — | — | Form 4 |
| Innovative Cellular Therapeutics Holdings Ltd | 10 percent owner | May 18, 2026 | OTHER | 0 | — | — | Form 4 |
| Seely Lynn | director, officer: President and CEO | May 11, 2026 | SELL | 388 | $18.91 | $7.3K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | May 11, 2026 | SELL | 130 | $18.92 | $2.5K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | May 11, 2026 | SELL | 89 | $18.92 | $1.7K | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | May 11, 2026 | SELL | 217 | $18.91 | $4.1K | Form 4 |
| RIEFLIN WILLIAM JL | director | Jun 10, 2026 | AWARD | 9,250 | $13.22 | $122.3K | Form 4 |
| Ramachandra Sumant | director | Jun 10, 2026 | AWARD | 9,250 | $13.22 | $122.3K | Form 4 |
| NABEL ELIZABETH G | director | Jun 10, 2026 | AWARD | 9,250 | $13.22 | $122.3K | Form 4 |
| Klausner Richard | director | Jun 10, 2026 | AWARD | 9,250 | $13.22 | $122.3K | Form 4 |
| FRIEDMAN CATHY | director | Jun 10, 2026 | AWARD | 9,250 | $13.22 | $122.3K | Form 4 |
| BRAWLEY OTIS W | director | Jun 10, 2026 | AWARD | 9,250 | $13.22 | $122.3K | Form 4 |
| Bachleda Mark | director | Jun 10, 2026 | AWARD | 9,250 | $13.22 | $122.3K | Form 4 |
| Shook David | Chief Medical Officer | Jun 10, 2026 | SELL | 1,977 | $12.64 | $25.0K | Form 4 |
| Shah Smital | Chief Fin. and Bus. Officer | Mar 9, 2026 | AWARD | 140,000 | $25.50 | $3.6M | Form 4 |
| Shah Smital | Mar 9, 2026 | OTHER | 0 | — | — | Form 4 | |
| ARCH Venture Partners IX, LLC | 10 percent owner | Mar 6, 2026 | BUY | 488,090 | $25.61 | $12.5M | Form 4 |
| ARCH Venture Fund XIII, L.P. | 10 percent owner | Mar 6, 2026 | BUY | 488,090 | $25.61 | $12.5M | Form 4 |
| Seely Lynn | director, officer: President and CEO | Feb 11, 2026 | SELL | 7,455 | $23.39 | $174.4K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Feb 11, 2026 | SELL | 1,236 | $23.39 | $28.9K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Feb 11, 2026 | SELL | 1,671 | $23.39 | $39.1K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Feb 10, 2026 | AWARD | 65,000 | $23.71 | $1.5M | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Feb 9, 2026 | AWARD | 4,000 | — | — | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Feb 10, 2026 | SELL | 109 | $23.12 | $2.5K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Feb 10, 2026 | AWARD | 50,000 | $23.71 | $1.2M | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Feb 9, 2026 | AWARD | 4,000 | — | — | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Feb 10, 2026 | SELL | 147 | $23.12 | $3.4K | Form 4 |
| Seely Lynn | director, officer: President and CEO | Feb 10, 2026 | AWARD | 155,000 | $23.71 | $3.7M | Form 4 |
| Seely Lynn | director, officer: President and CEO | Feb 9, 2026 | AWARD | 20,000 | — | — | Form 4 |
| Seely Lynn | director, officer: President and CEO | Feb 10, 2026 | SELL | 438 | $23.12 | $10.1K | Form 4 |
| Meltz Mark A | General Counsel | Feb 10, 2026 | AWARD | 50,000 | $23.71 | $1.2M | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Feb 10, 2026 | AWARD | 8,750 | — | — | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Feb 10, 2026 | SELL | 254 | $23.12 | $5.9K | Form 4 |
| Shook David | Chief Medical Officer | Feb 10, 2026 | AWARD | 50,000 | $23.71 | $1.2M | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Dec 24, 2025 | SELL | 1,136 | $38.67 | $43.9K | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Dec 30, 2025 | SELL | 936 | $32.32 | $30.3K | Form 4 |
| Seely Lynn | director, officer: President and CEO | Nov 10, 2025 | SELL | 412 | $16.11 | $6.6K | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Nov 10, 2025 | SELL | 239 | $16.10 | $3.8K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Nov 10, 2025 | SELL | 138 | $16.16 | $2.2K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Nov 10, 2025 | SELL | 95 | $16.12 | $1.5K | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Oct 31, 2025 | OTHER | 0 | — | — | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Oct 31, 2025 | OTHER | 3,000 | $37.40 | $112.2K | Form 4 |
| Bulis Veronica Sanchez | VP, Corporate Controller | Oct 31, 2025 | OTHER | 1,674 | $42.60 | $71.3K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Oct 27, 2025 | AWARD | 75,000 | $17.23 | $1.3M | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Oct 27, 2025 | AWARD | 68,000 | $17.23 | $1.2M | Form 4 |
| Seely Lynn | director, officer: President and CEO | Oct 27, 2025 | AWARD | 175,000 | $17.23 | $3.0M | Form 4 |
| Seely Lynn | director, officer: President and CEO | Aug 20, 2025 | AWARD | 40,000 | — | — | Form 4 |
| Seely Lynn | director, officer: President and CEO | Aug 21, 2025 | SELL | 7,257 | $10.54 | $76.5K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Aug 20, 2025 | AWARD | 8,000 | — | — | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Aug 21, 2025 | SELL | 1,004 | $10.54 | $10.6K | Form 4 |
| Newton Charles W. | Chief Financial Officer | Aug 20, 2025 | AWARD | 8,000 | — | — | Form 4 |
| Newton Charles W. | Chief Financial Officer | Aug 21, 2025 | SELL | 1,453 | $10.54 | $15.3K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Aug 20, 2025 | AWARD | 8,000 | — | — | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Aug 21, 2025 | SELL | 1,453 | $10.54 | $15.3K | Form 4 |
| Seely Lynn | director, officer: President and CEO | Aug 11, 2025 | SELL | 391 | $10.53 | $4.1K | Form 4 |
| Seely Lynn | director, officer: President and CEO | Aug 12, 2025 | SELL | 406 | $10.34 | $4.2K | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Aug 11, 2025 | SELL | 91 | $10.53 | $957.87 | Form 4 |
| Hill Stephen J. | Chief Operating Officer | Aug 12, 2025 | SELL | 94 | $10.34 | $971.77 | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Aug 11, 2025 | SELL | 131 | $10.53 | $1.4K | Form 4 |
| Lee Gary K. | Chief Scientific Officer | Aug 12, 2025 | SELL | 136 | $10.34 | $1.4K | Form 4 |
| Newton Charles W. | Chief Financial Officer | Aug 11, 2025 | SELL | 131 | $10.53 | $1.4K | Form 4 |
| Newton Charles W. | Chief Financial Officer | Aug 12, 2025 | SELL | 136 | $10.34 | $1.4K | Form 4 |
| ARCH Venture Partners IX, LLC | 10 percent owner: | Jul 25, 2025 | OTHER | 0 | — | — | Form 4 |
| ARCH Venture Fund XIII, L.P. | 10 percent owner | Jul 25, 2025 | OTHER | 0 | — | — | Form 4 |
| Bachleda Mark | director | Jun 9, 2025 | AWARD | 13,000 | $12.47 | $162.1K | Form 4 |
| Meltz Mark A | General Counsel | Jun 9, 2025 | AWARD | 100,000 | $12.47 | $1.2M | Form 4 |
| Shook David | Chief Medical Officer | Jun 9, 2025 | AWARD | 43,750 | $12.47 | $545.6K | Form 4 |
| Shook David | Chief Medical Officer | Jun 9, 2025 | AWARD | 21,900 | — | — | Form 4 |
| Bachleda Mark | Jun 9, 2025 | OTHER | 0 | — | — | Form 4 | |
| Meltz Mark A | Jun 9, 2025 | OTHER | 0 | — | — | Form 4 | |
| Shook David | Jun 9, 2025 | OTHER | 0 | — | — | Form 4 | |
| Klausner Richard | director | May 15, 2025 | AWARD | 130,000 | $0.40 | $52.2K | Form 4 |
| RIEFLIN WILLIAM JL | director | May 15, 2025 | AWARD | 130,000 | $0.40 | $52.2K | Form 4 |
| FRIEDMAN CATHY | director | May 15, 2025 | AWARD | 130,000 | $0.40 | $52.2K | Form 4 |
| BRAWLEY OTIS W | director | May 15, 2025 | AWARD | 130,000 | $0.40 | $52.2K | Form 4 |
| NABEL ELIZABETH G | director | May 15, 2025 | AWARD | 130,000 | $0.40 | $52.2K | Form 4 |
| Ramachandra Sumant | director | May 15, 2025 | AWARD | 130,000 | $0.40 | $52.2K | Form 4 |
| BRAWLEY OTIS W | director | Mar 31, 2025 | BUY | 35,640 | $0.56 | $20.0K | Form 4 |
| Ramachandra Sumant | director | Mar 21, 2025 | BUY | 200,000 | $0.58 | $115.2K | Form 4 |