Companies / Arcellx, Inc.

Arcellx, Inc.

Nasdaq: ACLXCIK 1786205REDWOOD CITY, CA

Financials · FY2025

Revenue$22.29M
Net income$-228.93M
Total debt—
Cash$80.26M
Diluted EPS$-4.07
Shares outstanding58.5M

Ownership

58.5M shares outstanding · as of Feb 20, 2026
0.43%Insiders
Ownership
Insiders0.43%249,233
10%+ / strategic24.15%14,124,153
Institutions101.42%59,312,284
Public float0.00%0

Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.

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

Insiders 4

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Insider% of sharesShares
Rami ElghandourSEE REMARKS · Director
0.30%174,887
Gilson MichelleCHIEF FINANCIAL OFFICER
0.05%28,938
Heery ChristopherCHIEF MEDICAL OFFICER
0.04%23,749
Lubner David CharlesDirector
0.04%21,659

Institutional holders 245

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HolderValue% of shares
Gilead Sciences, Inc.$438.20M11.49%
Paradigm BioCapital Advisors LP$373.21M9.79%
Vanguard Group Inc$266.12M6.98%
Hbk Investments L P$261.62M3.90%
Fmr LLC$232.36M6.09%
BlackRock, Inc.$231.38M6.07%
NEA Management Company, LLC$198.55M5.21%
Vestal Point Capital, LP$190.71M5.00%
Sr One Capital Management, LP$153.00M4.01%
State Street Corporation$130.30M3.42%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Feb 27, 2026Rami Elghandour
Executive
SellCommon Stock$10.24M-90K
-24.57%
276,051
0.47% of shares
medium
Feb 25, 2026Gilson Michelle
Executive
SellCommon Stock$1.28M-11K
-24.84%
33,938
0.06% of shares
medium
Feb 17, 2026Gilson Michelle
Executive
SellCommon Stock$494.2K-7K
-11.01%
57,691
0.10% of shares
medium
Jan 13, 2026Heery Christopher
Executive
SellCommon Stock$487.2K-7K
-20.06%
29,631
0.05% of shares
medium
Jan 20, 2026Lubner David Charles
Director
SellCommon Stock$450.0K-6K
-21.69%
21,659
0.04% of shares
medium
Jan 14, 2026Heery Christopher
Executive
SellCommon Stock$403.0K-6K
-19.85%
23,749
0.04% of shares
medium
Jan 12, 2026Heery Christopher
Executive
SellCommon Stock$393.3K-6K
-14.19%
37,068
0.06% of shares
medium
Feb 19, 2026Gilson Michelle
Executive
SellCommon Stock$370.6K-5K
-10.67%
45,257
0.08% of shares
medium

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
RA Capital Management, L.P.Passive13G/A———
Fmr LLCPassive13G/A—3,563,728—
Paradigm BioCapital Advisors LPPassive13G/A———
T. Rowe Price Investment Management, Inc.Passive13G/A—10,560,425—
Fmr LLCPassive13G/A—309,117—
T. Rowe Price Investment Management, Inc.Passive13G/A—2,653,848—
Vestal Point Capital, LPPassive13G———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
ACLX——03940C100—