Seely Lynn
SEC insider (Form 3/4/5 filer). CIK 0001327111. President and CEO at Lyell Immunopharma, Inc. (LYEL) and 2 other issuers. 19 reported Form 4/5 transactions since Sep 2024; latest on Aug 21, 2026. Located in SOUTH SAN FRANCISCO, CA.
Companies Seely Lynn has filed insider reports for
- Lyell Immunopharma, Inc. (LYEL): Director, Officer, President and CEO
- AbCellera Biologics Inc. (ABCL): Director
- Blueprint Medicines Corp (BPMC): Director
Seely Lynn
CIK: 0001327111
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (19 total)
- Aug 21, 2026LYEL
Lyell Immunopharma, Inc.
SaleDirect9.6K shares at avg. $15.54$149K - Aug 10, 2026LYEL
Lyell Immunopharma, Inc.
SaleDirect390 shares at avg. $14.34$6K - Jul 1, 2026ABCL
AbCellera Biologics Inc.
AwardDirectShare option (right to buy)
152.2K shares- - May 11, 2026LYEL
Lyell Immunopharma, Inc.
SaleDirect388 shares at avg. $18.91$7K - Feb 11, 2026LYEL
Lyell Immunopharma, Inc.
SaleDirect7.5K shares at avg. $23.39$174K - Feb 10, 2026LYEL
Lyell Immunopharma, Inc.
SaleDirect438 shares at avg. $23.12$10K - Feb 10, 2026LYEL
Lyell Immunopharma, Inc.
AwardDirectOption (right to buy)
155K shares- - Feb 9, 2026LYEL
Lyell Immunopharma, Inc.
AwardDirect20K shares- - Nov 10, 2025LYEL
Lyell Immunopharma, Inc.
SaleDirect412 shares at avg. $16.11$7K - Oct 27, 2025LYEL
Lyell Immunopharma, Inc.
AwardDirectOption (right to buy)
175K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 21, 2026 |  LYEL Lyell Immunopharma, Inc. | Sale | 9,589 | $15.54 | $149,013 | Direct |
| Aug 10, 2026 | LYEL Lyell Immunopharma, Inc. | Sale | 390 | $14.34 | $5,593 | Direct |
| Jul 1, 2026 |  ABCL AbCellera Biologics Inc. | Award Share option (right to buy) | 152,207 | - | - | Direct |
| May 11, 2026 | LYEL Lyell Immunopharma, Inc. | Sale | 388 | $18.91 | $7,337 | Direct |
| Feb 11, 2026 | LYEL Lyell Immunopharma, Inc. | Sale | 7,455 | $23.39 | $174,372 | Direct |
| Feb 10, 2026 | LYEL Lyell Immunopharma, Inc. | Sale | 438 | $23.12 | $10,127 | Direct |
| Feb 10, 2026 | LYEL Lyell Immunopharma, Inc. | Award Option (right to buy) | 155,000 | - | - | Direct |
| Feb 9, 2026 | LYEL Lyell Immunopharma, Inc. | Award | 20,000 | - | $0 | Direct |
| Nov 10, 2025 | LYEL Lyell Immunopharma, Inc. | Sale | 412 | $16.11 | $6,637 | Direct |
| Oct 27, 2025 | LYEL Lyell Immunopharma, Inc. | Award Option (right to buy) | 175,000 | - | - | Direct |
1-10 of 19 transactions