Lyell Immunopharma, Inc.
Total Trades
23
Buys
5
Sells
14
Largest Trade
N/A
Insiders
8
Institutional Funds
1
Inst. Value
$1M+
Activist Filings
17
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Seely Lynn | President and CEO | SELL | $100K–$500K | 7K | $23.39 | Feb 13, 2026 |
| Hill Stephen J. | COO | SELL | $15K–$50K | 1K | $23.39 | Feb 13, 2026 |
| Lee Gary K. | Chief Scientific O… | SELL | $15K–$50K | 2K | $23.39 | Feb 13, 2026 |
| Hill Stephen J. | COO | GRANT | N/A | 4K | — | Feb 12, 2026 |
| Hill Stephen J. | COO | SELL | $1K–$15K | 109 | $23.12 | Feb 12, 2026 |
| Lee Gary K. | Chief Scientific O… | SELL | $1K–$15K | 147 | $23.12 | Feb 12, 2026 |
| Lee Gary K. | Chief Scientific O… | GRANT | N/A | 4K | — | Feb 12, 2026 |
| Seely Lynn | President and CEO | GRANT | N/A | 20K | — | Feb 12, 2026 |
| Seely Lynn | President and CEO | SELL | $1K–$15K | 438 | $23.12 | Feb 12, 2026 |
| Bulis Veronica Sanchez | VP | SELL | $1K–$15K | 254 | $23.12 | Feb 12, 2026 |
| Bulis Veronica Sanchez | VP | GRANT | N/A | 9K | — | Feb 12, 2026 |
| Bulis Veronica Sanchez | VP | SELL | $50K–$100K | 2K | $35.80 | Jan 6, 2026 |
| Seely Lynn | President and CEO | SELL | $1K–$15K | 412 | $16.11 | Nov 13, 2025 |
| Bulis Veronica Sanchez | VP | SELL | $1K–$15K | 239 | $16.10 | Nov 13, 2025 |
| Lee Gary K. | Chief Scientific O… | SELL | $1K–$15K | 138 | $16.16 | Nov 13, 2025 |
| Hill Stephen J. | COO | SELL | $1K–$15K | 95 | $16.12 | Nov 13, 2025 |
| BRAWLEY OTIS W | Director | BUY | $15K–$50K | 36K | $0.56 | Apr 2, 2025 |
| Ramachandra Sumant | Director | BUY | $100K–$500K | 200K | $0.58 | Mar 25, 2025 |
| Klausner Richard | Director | BUY | $50K–$100K | 158K | $0.60 | Mar 19, 2025 |
| Newton Charles W. | CFO | BUY | $100K–$500K | 200K | $0.56 | Mar 18, 2025 |
| Seely Lynn | President and CEO | BUY | $100K–$500K | 175K | $0.61 | Mar 18, 2025 |
| Klausner Richard | Director | SELL | $100K–$500K | 58K | $2.28 | Aug 17, 2023 |
| Klausner Richard | Director | SELL | $50K–$100K | 11K | $6.40 | Sep 27, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 1 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Decheng Capital LLC | 692K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Aug 19, 2025
5.4%
1.0M shares
Foresite Capital Fund IV, L.P.
SC 13G/A · May 15, 2025
5.4%
16.0M shares
SC 13G/A · Feb 14, 2025
13.0%
36.4M shares
Foresite Capital Fund IV, L.P.
SC 13G/A · Feb 14, 2025
2.9%
8.3M shares
SC 13G/A · Feb 5, 2025
4.5%
13.3M shares
SC 13G/A · Nov 12, 2024
3.9%
10.1M shares
SC 13G/A · Nov 4, 2024
3.9%
10.1M shares
Foresite Capital Fund IV, L.P. (“FCF IV”)
SC 13G · Oct 31, 2024
3.2%
8.3M shares
(S) ARCH Venture Fund IX, L.P.
SC 13G/A · Feb 14, 2024
14.5%
36.4M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
5.4%
13.6M shares
SC 13G · Jan 29, 2024
5.7%
14.3M shares
Foresite Capital Fund IV, L.P. (“FCF IV”)
SC 13G/A · Feb 13, 2023
4.0%
10.0M shares
SC 13G · Feb 14, 2022
8.4%
20.2M shares
SC 13G · Feb 14, 2022
6.3%
15.1M shares
(S) ARCH Venture Fund IX, L.P.
SC 13G · Feb 14, 2022
15.1%
36.4M shares
Foresite Capital Fund IV, L.P. (“FCF IV”)
SC 13G · Feb 11, 2022
5.5%
13.3M shares
SC 13G · Feb 10, 2022
12.6%
30.3M shares