Companies / Lyell Immunopharma, Inc.

Lyell Immunopharma, Inc.

Nasdaq: LYELCIK 1806952SOUTH SAN FRANCISCO, CA

Financials · FY2025

Revenue$36.0K
Net income$-274.45M
Total debt—
Cash$72.98M
Diluted EPS$-16.06
Shares outstanding24.5M

Ownership

24.5M shares outstanding · as of Aug 3, 2026
0.51%Insiders
Ownership
Insiders0.51%124,248
10%+ / strategic11.64%2,853,056
Institutions53.42%13,091,101
Public float34.43%8,436,736

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 23

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Insider% of sharesShares
ARCH Venture Fund XIII, L.P.10% owner
5.82%1,426,528
ARCH Venture Partners IX, LLC10% owner
5.82%1,426,528
Seely LynnCEOPresident and CEO · Director
0.30%73,878
Hill Stephen J.Chief Operating Officer
0.07%17,795
Lee Gary K.Chief Scientific Officer
0.07%16,938
Bulis Veronica SanchezVP, Corporate Controller
0.06%15,637
ARCH Venture Fund IX, L.P.10% owner
——
ARCH Venture Fund IX Overage, L.P.10% owner
——
ARCH Venture Partners IX, L.P.10% owner
——
ARCH Venture Partners IX Overage, L.P.10% owner
——

Institutional holders 69

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HolderValue% of shares
ARCH Venture Management, LLC$65.14M13.25%
MWG Caph Ltd$31.03M4.11%
Gsk PLC$30.34M6.17%
Vanguard Group Inc$25.44M3.37%
Foresite Capital Management IV, LLC$24.64M3.27%
Orland Properties Ltd$23.23M3.08%
Almitas Capital LLC$17.78M2.36%
Foresite Capital Management V, LLC$14.68M1.95%
venBio Partners LLC$10.39M1.38%
BlackRock, Inc.$10.18M2.96%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Mar 6, 2026ARCH Venture Partners IX, LLC
10% owner
BuyCommon Stock$12.50M+488K
+52.01%
1,426,528
5.82% of shares
high
Mar 6, 2026ARCH Venture Fund XIII, L.P.
10% owner
BuyCommon Stock$12.50M+488K
+52.01%
1,426,528
5.82% of shares
high
Feb 11, 2026Seely Lynn
CEO
SellCommon Stock$174.4K-7K
-9.12%
74,266
0.30% of shares
medium
Dec 24, 2025Bulis Veronica Sanchez
Executive
SellCommon Stock$43.9K-1K
-12.33%
8,077
0.03% of shares
low
Feb 11, 2026Lee Gary K.
Executive
SellCommon Stock$39.1K-2K
-8.98%
16,938
0.07% of shares
low
Dec 30, 2025Bulis Veronica Sanchez
Executive
SellCommon Stock$30.3K-936
-11.59%
7,141
0.03% of shares
low
Feb 11, 2026Hill Stephen J.
Executive
SellCommon Stock$28.9K-1K
-6.49%
17,795
0.07% of shares
low
Feb 10, 2026Seely Lynn
CEO
SellCommon Stock$10.1K-438
-0.53%
81,721
0.33% of shares
low

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
LYELCommon StockEquity55083R203BBG00RNXFN14