Lyell Immunopharma Inc

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Lyell Immunopharma Inc
TickerLYEL
CIK #0001806952
CUSIP55083R203
SectorLife Sciences - Pharmaceutical Preparations
Address400 East Jamie Court Suite 301, South San Francisco, CA 94080
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Lyell Immunopharma Inc 2020-03-20 493.0 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001806952] 10-K
[0001806952] 10-Q
[0001806952] 3
[0001806952] 4
[0001806952] 8-K
[0001806952] D
[0001806952] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Euler Fund LP Lyell Immunopharma Inc [2026-04-21] 0.0
Innovative Cellular Therapeutics Holdings Ltd Lyell Immunopharma Inc [2025-11-13] 0.0
Explore Investments LLC/De Lyell Immunopharma Inc [2025-08-19] 0.0
Gates Frontier LLC Lyell Immunopharma Inc [2025-08-01] 0.0
Foresite Capital Fund IV LP Lyell Immunopharma Inc [2024-10-31] 3.2
BlackRock Inc Lyell Immunopharma Inc [2024-01-29] 5.7
Vanguard Group Inc Lyell Immunopharma Inc [2023-02-09] 5.05
MWG Management Ltd Lyell Immunopharma Inc [2022-02-14] 8.38
Newton PTC Ltd Lyell Immunopharma Inc [2022-02-14] 6.28
Arch Venture Fund IX LP Lyell Immunopharma Inc [2022-02-14] 15.1
Foresite Capital Fund IV LP Lyell Immunopharma Inc [2022-02-11] 5.5
GlaxoSmithKline PLC Lyell Immunopharma Inc [2022-02-10] 12.6
Form 3/4/5 Filer 2011 - 2026
Innovative Cellular Therapeutics Holdings Ltd
Lyell Immunopharma Inc
Hill Stephen J
Lee Gary K
Bulis Veronica Sanchez
Seely Lynn
Ramachandra Sumant
Friedman Cathy
Rieflin William JL
Bachleda Mark
Nabel Elizabeth G
Klausner Richard
Brawley Otis W
Shook David
Shah Smital
Bybee Clinton
Arch Venture Partners XIII LLC
Berns Paul L
Burow Kristina
Arch Venture Partners XIII LP
Arch Venture Fund XIII LP
Nelsen Robert
Gillis Steven
Crandell Keith
Arch Venture Partners IX LLC
Arch Venture Partners IX Overage LP
Arch Venture Fund IX Overage LP
Arch Venture Partners IX LP
Arch Venture Fund IX LP
Meltz Mark A
Newton Charles W
Lang Matthew
Bishop Hans Edgar
Thompson Rahsaan
Albertson Tina M
Turner Heather D
Homans Elizabeth
GlaxoSmithKline PLC
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Shah Smital
Option (right to buy) · derivative
2026-03-09 Grant 140,000 $0.00
Arch Venture Partners IX LLC +4
Common Stock
2026-03-06 Buy 488,090 $25.61 12,499,985
Bybee Clinton +8
Common Stock
2026-03-06 Buy 488,090 $25.61 12,499,985
Hill Stephen J
Common Stock
2026-02-11 Sell 1,236 $23.39 28,910
Lee Gary K
Common Stock
2026-02-11 Sell 1,671 $23.39 39,085
Seely Lynn
Common Stock
2026-02-11 Sell 7,455 $23.39 174,372
Seely Lynn
Option (right to buy) · derivative
2026-02-10 Grant 155,000 $0.00
Hill Stephen J
Common Stock
2026-02-10 Sell 109 $23.12 2,520
Lee Gary K
Common Stock
2026-02-10 Sell 147 $23.12 3,399
Seely Lynn
Common Stock
2026-02-10 Sell 438 $23.12 10,127
Bulis Veronica Sanchez
Common Stock
2026-02-10 Sell 254 $23.12 5,872
Bulis Veronica Sanchez
Common Stock
2026-02-10 Grant 8,750 $0.00
Hill Stephen J
Option (right to buy) · derivative
2026-02-10 Grant 65,000 $0.00
Lee Gary K
Option (right to buy) · derivative
2026-02-10 Grant 50,000 $0.00
Meltz Mark A
Option (right to buy) · derivative
2026-02-10 Grant 50,000 $0.00
Shook David
Option (right to buy) · derivative
2026-02-10 Grant 50,000 $0.00
Lee Gary K
Common Stock
2026-02-09 Grant 4,000 $0.00
Seely Lynn
Common Stock
2026-02-09 Grant 20,000 $0.00
Hill Stephen J
Common Stock
2026-02-09 Grant 4,000 $0.00
Bulis Veronica Sanchez
Common Stock
2025-12-30 Sell 936 $32.32 30,252
showing 20 of 180 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 76 12,682,705
2025-12-31 69 12,200,362
2025-09-30 59 10,895,490
2025-06-30 70 9,294,911
2025-03-31 113 152,405,354
2024-12-31 106 150,334,098
2024-09-30 118 120,798,672
2024-06-30 120 125,791,618
2024-03-31 128 128,091,977
2023-12-31 120 124,976,340
2023-09-30 107 115,939,495
2023-06-30 100 114,119,595
Form 13F Holdings
Firm Period DFND Voting Shares
Gamma Investing LLC [2026-06-30] DFND 35 35
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