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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.

Q2 2024 vs. Q1 2024

How the institutions holding Arcellx, Inc. changed between Q1 2024 and Q2 2024.

All holders in Q2 2024All holders in Q1 2024

13F holders of ACLX: Q1 2024 compared with Q2 2024
MeasureQ1 2024Of which not filed for Q2 2024Q2 2024Change
Holders1831167−15
Shares47.0M38.7K50.2M+3.25M (+6.9%)
Value$3.27B$2.69M$2.77B−$494.3M (−15.1%)

1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (22)

Institutions that held Arcellx, Inc. at the end of Q2 2024 but not at the end of Q1 2024.

Institutions new to ACLX in Q2 2024
InstitutionSharesValue% of portfolio
Ra Capital Management, L.P.1,604,014$88.5M1.17%
Man Group plc104,046$5.74M0.02%
Superstring Capital Management LP59,133$3.26M4.11%
Jacobs Levy Equity Management, Inc47,817$2.64M0.01%
Renaissance Technologies LLC27,072$1.49M0.00%
Corebridge Financial, Inc.23,189$1.28M0.01%
Mirae Asset Global ETFs Holdings Ltd.22,755$1.25M0.00%
State of New Jersey Common Pension Fund D11,756$648.8K0.00%
State Board of Administration of Florida Retirement System10,850$598.8K0.00%
Handelsbanken Fonder AB10,300$568.0K0.00%
Winton Group Ltd8,761$483.5K0.03%
Clough Capital Partners L P4,800$264.9K0.03%
Bridgefront Capital, LLC4,641$256.1K0.11%
Integrated Wealth Concepts LLC3,775$208.3K0.00%
Public Employees Retirement Association of Colorado3,217$178.0K0.00%
Decheng Capital LLC1,177$65.0K0.02%
Quest Partners LLC494$27.3K0.00%
ADAR1 Capital Management, LLC100$5.52K0.00%
Clearstead Advisors, LLC54$2.98K0.00%
Global Retirement Partners, LLC40$2.21K0.00%
Smartleaf Asset Management LLC10$5410.00%
TFC Financial Management1$560.00%

Sold out (37)

Institutions that held Arcellx, Inc. at the end of Q1 2024 and filed for Q2 2024 without it.

Institutions that sold out of ACLX in Q2 2024
InstitutionShares, Q1 2024Value, Q1 2024
Citadel Advisors LLC77,730$5.41M
EAM Investors, LLC66,052$4.59M
Millennium Management LLC61,210$4.26M
Cubist Systematic Strategies, LLC57,248$3.98M
D. E. Shaw & Co., Inc.25,286$1.76M
FORA Capital, LLC22,217$1.55M
American International Group, Inc.18,904$1.31M
Seven Eight Capital, LP17,351$1.21M
Norges Bank16,369$1.14M
Advantage Alpha Capital Partners LP15,475$1.08M
Entropy Technologies, LP14,526$1.01M
SG Americas Securities, LLC12,253$852.0K
Jump Financial, LLC9,310$647.5K
Danske Bank A/S8,990$625.3K
Acadian Asset Management LLC7,882$548.0K
Eschler Asset Management LLP6,787$472.0K
Oxford Asset Management LLP5,305$369.0K
XTX Topco Ltd4,062$282.5K
Pictet Asset Management Holding SA3,519$244.7K
Arrowstreet Capital, Limited Partnership3,500$243.0K
Prudential Financial Inc3,484$242.3K
Simplicity Wealth,LLC3,331$231.7K
Bleakley Financial Group, LLC3,331$231.7K
Marshall Wace, LLP3,300$229.5K
Advisory Alpha, LLC3,000$208.7K
Envestnet Asset Management Inc2,948$205.0K
Mackenzie Financial Corp2,912$202.5K
Metropolitan Life Insurance Co2,107$146.5K
Point72 Asia (Singapore) Pte. Ltd.1,498$104.2K
Harvest Fund Management Co., Ltd1,391$97.0K
Plato Investment Management Ltd729$50.7K
Point72 (DIFC) Ltd644$44.8K
GWM Advisors LLC527$36.7K
EntryPoint Capital, LLC142$9.88K
Lindbrook Capital, LLC85$5.91K
Clear Street Markets LLC42$3.00K
Nelson, Van Denburg & Campbell Wealth Management Group, LLC19$1.32K

Not filed for Q2 2024 yet (1)

Institutions that held Arcellx, Inc. at the end of Q1 2024 and haven't filed a 13F for Q2 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ACLX in Q1 2024 that haven't filed for Q2 2024
InstitutionShares, Q1 2024Value, Q1 2024
Credit Suisse AG38,739$2.69M