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Arcellx, Inc.

ACLXDelisted Apr 28, 2026
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001786205

Arcellx, Inc. was delisted on Apr 28, 2026; its insiders filed their last Form 4 on Apr 28, 2026; 240 institutions reported holding it in 13F filings for Q1 2026, worth $6.52B in total; Soros Fund Management was the only superinvestor holding it.

Q1 2024 vs. Q4 2023

How the institutions holding Arcellx, Inc. changed between Q4 2023 and Q1 2024.

All holders in Q1 2024All holders in Q4 2023

13F holders of ACLX: Q4 2023 compared with Q1 2024
MeasureQ4 2023Of which not filed for Q1 2024Q1 2024Change
Holders1561183+28
Shares46.7M39.3K47.0M+337.3K (+0.7%)
Value$2.59B$2.18M$3.27B+$678.4M (+26.2%)

1 institution that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (42)

Institutions that held Arcellx, Inc. at the end of Q1 2024 but not at the end of Q4 2023.

Institutions new to ACLX in Q1 2024
InstitutionSharesValue% of portfolio
Eagle Asset Management Inc224,534$15.0M0.08%
Cutter Capital Management, LP107,000$7.44M2.87%
Duquesne Family Office LLCSuperinvestorDuquesne Family Office74,100$5.15M0.14%
Thrivent Financial for Lutherans67,540$4.70M0.01%
Erste Asset Management GmbH21,000$1.48M0.02%
Moody Aldrich Partners LLC20,560$1.43M0.24%
Harbor Capital Advisors, Inc.18,794$1.31M0.17%
Seven Eight Capital, LP17,351$1.21M0.13%
Norges Bank16,369$1.14M0.00%
Allspring Global Investments Holdings, LLC11,556$803.7K0.00%
Danske Bank A/S8,990$625.3K0.00%
Eschler Asset Management LLP6,787$472.0K0.31%
Wexford Capital LP5,839$406.1K0.08%
Raymond James & Associates5,707$396.9K0.00%
Oxford Asset Management LLP5,305$369.0K0.40%
HSBC Holdings PLC5,166$359.2K0.00%
XTX Topco Ltd4,062$282.5K0.04%
Arrowstreet Capital, Limited Partnership3,500$243.0K0.00%
Prudential Financial Inc3,484$242.3K0.00%
Simplicity Wealth,LLC3,331$231.7K0.01%
Bleakley Financial Group, LLC3,331$231.7K0.01%
Marshall Wace, LLP3,300$229.5K0.00%
NEOS Investment Management LLC3,053$212.3K0.01%
Advisory Alpha, LLC3,000$208.7K0.01%
Envestnet Asset Management Inc2,948$205.0K0.00%
Mackenzie Financial Corp2,912$202.5K0.00%
Harvest Fund Management Co., Ltd1,391$97.0K0.01%
Plato Investment Management Ltd729$50.7K0.01%
National Bank of Canada1,000$49.7K0.00%
KBC Group NV666$46.0K0.00%
Point72 (DIFC) Ltd644$44.8K0.00%
State of Wyoming629$43.7K0.01%
Pacer Advisors, Inc.593$41.2K0.00%
GWM Advisors LLC527$36.7K0.00%
Lindbrook Capital, LLC85$5.91K0.00%
The PNC Financial Services Group, Inc.57$3.96K0.00%
Clear Street Markets LLC42$3.00K0.00%
Nelson, Van Denburg & Campbell Wealth Management Group, LLC19$1.32K0.00%
Institutional & Family Asset Management, LLC8$5560.00%
Bell Investment Advisors, Inc7$4870.00%
Rothschild Investment LLC5$3480.00%
Principal Securities, Inc.2$1390.00%

Sold out (14)

Institutions that held Arcellx, Inc. at the end of Q4 2023 and filed for Q1 2024 without it.

Institutions that sold out of ACLX in Q1 2024
InstitutionShares, Q4 2023Value, Q4 2023
Deep Track Capital, LP725,145$40.2M
Caas Capital Management LP124,959$6.94M
Renaissance Technologies LLC61,100$3.39M
Point72 Middle East FZE17,903$993.6K
HRT Financial LP12,725$706.0K
State Board of Administration of Florida Retirement System10,850$602.2K
Advisory Research Inc9,530$528.9K
Globeflex Capital L P8,732$484.6K
Walleye Trading LLC6,791$376.9K
Fox Run Management, L.L.C.6,521$361.9K
Simplex Trading, LLC5,481$304.0K
Oracle Alpha Inc.3,674$203.9K
Gradient Investments LLC60$3.33K
Able Wealth Management LLC22$1.22K

Not filed for Q1 2024 yet (1)

Institutions that held Arcellx, Inc. at the end of Q4 2023 and haven't filed a 13F for Q1 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ACLX in Q4 2023 that haven't filed for Q1 2024
InstitutionShares, Q4 2023Value, Q4 2023
Putnam Investments LLC39,314$2.18M