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, Q3 2024
Institutional positions in Arcellx, Inc. as of Sep 30, 2024. 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
- 186
- +21 vs. Q2 2024
- Shares held
- 49.5M
- +2.76M (+5.9%) vs. Q2 2024
- Total value
- $4.13B
- +$1.56B (+60.3%) vs. Q2 2024
- New holders
- 39
- 68 more added
- Sold out
- 18
- 60 more reduced
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 2 | $3.43M |
| Q1 2026 | 240 | $6.52B |
| Q4 2025 | 218 | $4.34B |
| Q3 2025 | 209 | $5.18B |
| Q2 2025 | 203 | $4.01B |
| Q1 2025 | 198 | $4.04B |
| Q4 2024 | 211 | $4.54B |
| Q3 2024 | 186 | $4.13B |
| Q2 2024 | 167 | $2.77B |
| Q1 2024 | 183 | $3.27B |
| Q4 2023 | 156 | $2.59B |
| Q3 2023 | 136 | $1.71B |
| Q2 2023 | 138 | $1.52B |
| Q1 2023 | 117 | $1.40B |
| Q4 2022 | 125 | $1.30B |
| Q3 2022 | 74 | $781.8M |
| Q2 2022 | 68 | $621.5M |
| Q1 2022 | 49 | $357.9M |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| STRS Ohio | 12,100 | $1.01M | 0.00% | −1,000−7.6% | Reduced |
| SG Americas Securities, LLC | 12,035 | $1.00M | 0.00% | +12,035 | New |
| NEOS Investment Management LLC | 11,910 | $994.6K | 0.03% | +748+6.7% | Added |
| Jasper Ridge Partners, L.P. | 11,820 | $987.1K | 0.03% | 00.0% | Unchanged |
| Profund Advisors LLC | 11,445 | $955.8K | 0.04% | −4,651−28.9% | Reduced |
| ProShare Advisors LLC | 11,322 | $945.5K | 0.00% | +2,881+34.1% | Added |
| Ameriprise Financial Inc | 11,116 | $928.3K | 0.00% | −194−1.7% | Reduced |
| State Board of Administration of Florida Retirement System | 10,850 | $906.1K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 10,339 | $863.4K | 0.10% | +4,052+64.5% | Added |
| Allianz Asset Management GmbH | 10,100 | $843.5K | 0.00% | −6,700−39.9% | Reduced |
| MYDA Advisors LLC | 10,000 | $835.1K | 0.24% | −32,000−76.2% | Reduced |
| Intech Investment Management LLC | 9,579 | $799.9K | 0.01% | +9,579 | New |
| Arizona State Retirement System | 9,244 | $772.0K | 0.00% | +294+3.3% | Added |
| LPL Financial LLC | 9,155 | $764.5K | 0.00% | +31+0.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,978 | $749.8K | 0.00% | +2,167+31.8% | Added |
| High Net Worth Advisory Group LLC | 8,500 | $709.8K | 0.20% | +500+6.3% | Added |
| Teacher Retirement System of Texas | 8,051 | $672.0K | 0.00% | +1,030+14.7% | Added |
| US Bancorp | 7,603 | $634.9K | 0.00% | +2,851+60.0% | Added |
| Allspring Global Investments Holdings, LLC | 6,948 | $580.2K | 0.00% | −8,980−56.4% | Reduced |
| D. E. Shaw & Co., Inc. | 6,305 | $526.5K | 0.00% | +6,305 | New |
| Advisors Asset Management, Inc. | 6,196 | $517.4K | 0.01% | +720+13.1% | Added |
| Mariner, LLC | 5,065 | $422.9K | 0.00% | +1,300+34.5% | Added |
| Royal Bank of Canada | 4,990 | $417.0K | 0.00% | +643+14.8% | Added |
| Raymond James & Associates | 4,992 | $416.9K | 0.00% | +78+1.6% | Added |
| SEI Investments Co | 4,861 | $405.9K | 0.00% | −95−1.9% | Reduced |
| GTS Securities LLC | 4,739 | $395.8K | 0.01% | +4,739 | New |
| Two Sigma Advisers, LP | 4,500 | $375.8K | 0.00% | −800−15.1% | Reduced |
| Tudor Investment Corp Et Al | 4,409 | $368.2K | 0.00% | +4,409 | New |
| Legato Capital Management LLC | 4,408 | $368.1K | 0.05% | +4,408 | New |
| Ameritas Investment Partners, Inc. | 4,367 | $364.7K | 0.01% | +144+3.4% | Added |
| Principal Financial Group Inc | 4,018 | $335.5K | 0.00% | −33,334−89.2% | Reduced |
| Farallon Capital Management, L.L.C. | 4,000 | $334.0K | 0.00% | 00.0% | Unchanged |
| Bellevue Group AG | 4,000 | $334.0K | 0.01% | +4,000 | New |
| ADAR1 Capital Management, LLC | 3,962 | $330.9K | 0.06% | +3,862+3,862.0% | Added |
| Y-Intercept (Hong Kong) Ltd | 3,904 | $326.0K | 0.02% | −11,955−75.4% | Reduced |
| Envestnet Asset Management Inc | 3,746 | $312.8K | 0.00% | +3,746 | New |
| Group One Trading, L.P. | 3,709 | $309.7K | 0.01% | +3,709 | New |
| Glenmede Trust Co NA | 3,615 | $301.9K | 0.00% | +3,615 | New |
| E Fund Management Co., Ltd. | 3,582 | $299.1K | 0.02% | −1,630−31.3% | Reduced |
| Pictet Asset Management Holding SA | 3,519 | $293.9K | 0.00% | +3,519 | New |
| Entropy Technologies, LP | 3,509 | $293.0K | 0.03% | +3,509 | New |
| Integrated Wealth Concepts LLC | 3,490 | $291.4K | 0.00% | −285−7.5% | Reduced |
| Mackenzie Financial Corp | 3,301 | $275.7K | 0.00% | +3,301 | New |
| Public Employees Retirement Association of Colorado | 3,217 | $269.0K | 0.00% | 00.0% | Unchanged |
| Nomura Holdings Inc | 3,197 | $267.0K | 0.00% | +3,197 | New |
| Prudential Financial Inc | 3,120 | $260.6K | 0.00% | +3,120 | New |
| Advisory Alpha, LLC | 3,000 | $250.5K | 0.01% | +3,000 | New |
| HSBC Holdings PLC | 2,973 | $250.4K | 0.00% | −1,090−26.8% | Reduced |
| Acadian Asset Management LLC | 2,953 | $246.0K | 0.00% | +2,953 | New |
| Xponance, Inc. | 2,844 | $237.5K | 0.00% | +2,844 | New |
| JustInvest LLC | 2,597 | $216.8K | 0.00% | +2,597 | New |
| EntryPoint Capital, LLC | 2,501 | $208.9K | 0.12% | +2,501 | New |
| Exchange Traded Concepts, LLC | 2,175 | $181.6K | 0.00% | −950−30.4% | Reduced |
| Torno Capital, LLC | 2,000 | $167.0K | 0.22% | +2,000 | New |
| Mirae Asset Global Investments Co., Ltd. | 1,944 | $160.9K | 0.00% | +347+21.7% | Added |
| Virtus ETF Advisers LLC | 1,651 | $137.9K | 0.06% | +28+1.7% | Added |
| Covestor Ltd | 1,616 | $135.0K | 0.08% | +1,613+53,766.7% | Added |
| Quest Partners LLC | 1,532 | $127.9K | 0.01% | +1,038+210.1% | Added |
| Quarry LP | 1,500 | $125.3K | 0.04% | +1,500 | New |
| Amalgamated Bank | 1,347 | $112.0K | 0.00% | 00.0% | Unchanged |
| KBC Group NV | 1,011 | $84.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 676 | $56.5K | 0.00% | −3,963−85.4% | Reduced |
| Nisa Investment Advisors, LLC | 564 | $47.1K | 0.00% | +69+13.9% | Added |
| Catalyst Funds Management Pty Ltd | 400 | $33.4K | 0.01% | +400 | New |
| GAMMA Investing LLC | 232 | $19.4K | 0.00% | +97+71.9% | Added |
| Daiwa Securities Group Inc. | 204 | $17.0K | 0.00% | +28+15.9% | Added |
| Turim 21 Investimentos Ltda. | 179 | $14.9K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 118 | $9.86K | 0.00% | +42+55.3% | Added |
| Smartleaf Asset Management LLC | 113 | $9.35K | 0.00% | +103+1,030.0% | Added |
| CWM, LLC | 81 | $7.00K | 0.00% | +49+153.1% | Added |
| Comerica Bank | 78 | $6.52K | 0.00% | −3−3.7% | Reduced |
| Clearstead Advisors, LLC | 54 | $4.51K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 45 | $3.76K | 0.00% | −14−23.7% | Reduced |
| Rothschild Investment LLC | 45 | $3.76K | 0.00% | +25+125.0% | Added |
| Sterling Capital Management LLC | 44 | $3.67K | 0.00% | +44 | New |
| Fortitude Family Office, LLC | 38 | $3.17K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 30 | $3.00K | 0.00% | +30 | New |
| Wolff Wiese Magana LLC | 17 | $1.42K | 0.00% | +17 | New |
| Global Retirement Partners, LLC | 12 | $1.00K | 0.00% | −28−70.0% | Reduced |
| Parallel Advisors, LLC | 10 | $835 | 0.00% | +10 | New |
| Farther Finance Advisors, LLC | 8 | $668 | 0.00% | +2+33.3% | Added |
| Bell Investment Advisors, Inc | 7 | $585 | 0.00% | −7−50.0% | Reduced |
| Principal Securities, Inc. | 5 | $418 | 0.00% | +3+150.0% | Added |
| J.Safra Asset Management Corp | 5 | $414 | 0.00% | +5 | New |
| TFC Financial Management | 1 | $84 | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 9 | $0 | 0.00% | −15−62.5% | Reduced |
| Man Group plc | 0 | $0 | 0.00% | −104,046−100.0% | Sold out |
| Superstring Capital Management LP | 0 | $0 | 0.00% | −59,133−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −53,585−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −41,144−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −35,211−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −27,072−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −23,148−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −22,492−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −15,829−100.0% | Sold out |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −11,756−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −11,228−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −8,761−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −6,273−100.0% | Sold out |
| Clough Capital Partners L P | 0 | $0 | 0.00% | −4,800−100.0% | Sold out |