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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.

13F holders, Q2 2023

Institutional positions in Arcellx, Inc. as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
138
+21 vs. Q1 2023
Shares held
48.1M
+2.48M (+5.4%) vs. Q1 2023
Total value
$1.52B
+$116.2M (+8.3%) vs. Q1 2023
New holders
32
68 more added
Sold out
11
31 more reduced

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ACLX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 138 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 49 institutionsQ2 2022: 68 institutionsQ3 2022: 74 institutionsQ4 2022: 125 institutionsQ1 2023: 117 institutionsQ2 2023: 138 institutionsQ3 2023: 136 institutionsQ4 2023: 156 institutionsQ1 2024: 183 institutionsQ2 2024: 167 institutionsQ3 2024: 186 institutionsQ4 2024: 211 institutionsQ1 2025: 198 institutionsQ2 2025: 203 institutionsQ3 2025: 209 institutionsQ4 2025: 218 institutionsQ1 2026: 240 institutionsQ2 2026: 2 institutions
Value heldQ2 2023: $1.52B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $357.9MQ2 2022: $621.5MQ3 2022: $781.8MQ4 2022: $1.30BQ1 2023: $1.40BQ2 2023: $1.52BQ3 2023: $1.71BQ4 2023: $2.59BQ1 2024: $3.27BQ2 2024: $2.77BQ3 2024: $4.13BQ4 2024: $4.54BQ1 2025: $4.04BQ2 2025: $4.01BQ3 2025: $5.18BQ4 2025: $4.34BQ1 2026: $6.52BQ2 2026: $3.43M
Institutions holding ACLX and their total value by quarter
QuarterHoldersValue
Q2 20262$3.43M
Q1 2026240$6.52B
Q4 2025218$4.34B
Q3 2025209$5.18B
Q2 2025203$4.01B
Q1 2025198$4.04B
Q4 2024211$4.54B
Q3 2024186$4.13B
Q2 2024167$2.77B
Q1 2024183$3.27B
Q4 2023156$2.59B
Q3 2023136$1.71B
Q2 2023138$1.52B
Q1 2023117$1.40B
Q4 2022125$1.30B
Q3 202274$781.8M
Q2 202268$621.5M
Q1 202249$357.9M
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q1 2023.

Institutions holding ACLX in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Franklin Resources Inc12,100$382.6K0.00%+12,100New
Jasper Ridge Partners, L.P.11,820$373.7K0.02%+3,940+50.0%Added
SEI Investments Co10,941$346.0K0.00%−9,004−45.1%Reduced
Principal Financial Group Inc10,771$340.6K0.00%+837+8.4%Added
State Board of Administration of Florida Retirement System10,770$340.5K0.00%+10,770New
Tower Research Capital LLC (TRC)10,250$324.1K0.01%+8,786+600.1%Added
Algert Global LLC9,750$308.3K0.01%−9,872−50.3%Reduced
Citizens Financial Group Inc9,402$297.3K0.01%+9,402New
Point72 Middle East FZE8,752$276.7K0.02%+8,752New
LMR Partners LLP8,116$256.6K0.01%−2,092−20.5%Reduced
ProShare Advisors LLC8,041$254.3K0.00%+1,521+23.3%Added
E Fund Management Co., Ltd.7,749$245.0K0.02%−283−3.5%Reduced
Arizona State Retirement System6,719$212.5K0.00%+6,719New
NinePointTwo Capital6,567$207.0K0.08%+6,567New
Teacher Retirement System of Texas6,490$205.0K0.00%+6,490New
STRS Ohio6,200$196.0K0.00%00.0%Unchanged
Amalgamated Bank5,464$173.0K0.00%+2,366+76.4%Added
Zurcher Kantonalbank (Zurich Cantonalbank)4,868$153.9K0.00%+1,840+60.8%Added
Exchange Traded Concepts, LLC3,596$113.7K0.00%+3,596New
Ameritas Investment Partners, Inc.3,134$99.1K0.00%+815+35.1%Added
Royal Bank of Canada2,960$93.0K0.00%+1,260+74.1%Added
Virtus ETF Advisers LLC2,866$90.6K0.05%−202−6.6%Reduced
Metropolitan Life Insurance Co2,092$66.1K0.00%+375+21.8%Added
Acadian Asset Management LLC1,811$57.0K0.00%+1,811New
Genworth Financial Inc1,791$56.6K0.02%+1,791New
China Universal Asset Management Co., Ltd.629$19.9K0.01%+35+5.9%Added
Lazard Asset Management LLC525$16.0K0.00%+13+2.5%Added
Group One Trading, L.P.263$8.32K0.00%+263New
Daiwa Securities Group Inc.176$6.00K0.00%00.0%Unchanged
Turim 21 Investimentos Ltda.179$5.66K0.00%+179New
Allspring Global Investments Holdings, LLC150$4.74K0.00%+150New
US Bancorp120$3.79K0.00%−86−41.7%Reduced
Gradient Investments LLC60$1.90K0.00%+60New
Nisa Investment Advisors, LLC28$8850.00%00.0%Unchanged
Allianz Asset Management GmbH8,300$2620.00%−13,000−61.0%Reduced
CWM, LLC11$00.00%00.0%Unchanged
Covestor Ltd4$00.00%00.0%Unchanged
Coppell Advisory Solutions LLC224––+224New
Braidwell LP0$00.00%−333,800−100.0%Sold out
Altium Capital Management LP0$00.00%−150,000−100.0%Sold out
Caas Capital Management LP0$00.00%−124,959−100.0%Sold out
Kynam Capital Management, LP0$00.00%−31,336−100.0%Sold out
Vident Investment Advisory, LLC0$00.00%−22,755−100.0%Sold out
Fred Alger Management, LLC0$00.00%−14,374−100.0%Sold out
Verition Fund Management LLC0$00.00%−12,345−100.0%Sold out
SG Americas Securities, LLC0$00.00%−11,962−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−11,641−100.0%Sold out
MYDA Advisors LLC0$00.00%−8,000−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−118−100.0%Sold out