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Arcellx shares owned by Water Island Capital

Quarter-by-quarter ownership of Arcellx (ACLX) shares owned by Water Island Capital from 13F filings

Historical chart of Water Island Capital investment in Arcellx

Tip: Access up to 7 years of quarterly data

All positions including Arcellx held by Water Island Capital consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Arcellx by Water Island Capital

Quarter filed Position value Share count Share price at filing
2026-03-31 $21M 183k 114.82

More positions owned by Water Island Capital

Electronic Arts Equity (EA)
Janus Henderson Group Equity (JHG)
Warner Bros Discovery Equity (WBD)
Hologic Equity
Txnm Energy Equity (TXNM)
Penumbra Equity (PEN)
Chart Inds Equity (GTLS)
Norfolk Southn Corp Equity (NSC)
Masimo Corp Equity (MASI)
Electronic Arts Equity Put Put Option
Webster Finl Corp Equity (WBS)
Warner Bros Discovery Equity Put Put Option
Tri Pointe Homes Equity (TPH)
National Storage Affiliates Equity (NSA)
Great Lakes Dredge & Dock Equity

View all positions for Water Island Capital

Top funds holding Arcellx

T. Rowe Price Investment Management
Gilead Sciences
Paradigm Biocapital Advisors
Vanguard Group
BlackRock
FMR
NEA Management Company
Pentwater Capital Management
Vanguard Capital Management
Vanguard Portfolio Management
Sr One Capital Management
HBK Investments
State Street Corporation
Glazer Capital
Goldman Sachs Group

View all funds holding Arcellx