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, Q4 2023
Institutional positions in Arcellx, Inc. as of Dec 31, 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
- 156
- +20 vs. Q3 2023
- Shares held
- 46.7M
- −840.1K (−1.8%) vs. Q3 2023
- Total value
- $2.59B
- +$886.9M (+52.0%) vs. Q3 2023
- New holders
- 37
- 59 more added
- Sold out
- 17
- 47 more reduced
Compare with Q3 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.
| 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, Q4 2023
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| STRS Ohio | 12,300 | $682.0K | 0.00% | −17,181−58.3% | Reduced |
| Royal Bank of Canada | 11,974 | $665.0K | 0.00% | +6,994+140.4% | Added |
| Jasper Ridge Partners, L.P. | 11,820 | $656.0K | 0.03% | 00.0% | Unchanged |
| HealthInvest Partners AB | 11,400 | $632.7K | 0.50% | +11,400 | New |
| Engineers Gate Manager LP | 11,375 | $631.3K | 0.02% | +11,375 | New |
| AQR Capital Management LLC | 11,062 | $613.9K | 0.00% | −4,747−30.0% | Reduced |
| SEI Investments Co | 10,885 | $604.1K | 0.00% | +10,885 | New |
| State Board of Administration of Florida Retirement System | 10,850 | $602.2K | 0.00% | 00.0% | Unchanged |
| Principal Financial Group Inc | 10,638 | $590.4K | 0.00% | +137+1.3% | Added |
| Wells Fargo & Company | 10,515 | $583.6K | 0.00% | −26,144−71.3% | Reduced |
| Advisory Research Inc | 9,530 | $528.9K | 0.08% | +9,530 | New |
| ProShare Advisors LLC | 9,459 | $525.0K | 0.00% | +1,367+16.9% | Added |
| Algert Global LLC | 9,190 | $510.0K | 0.02% | −560−5.7% | Reduced |
| Globeflex Capital L P | 8,732 | $484.6K | 0.05% | 00.0% | Unchanged |
| Corton Capital Inc. | 8,399 | $466.1K | 0.15% | +866+11.5% | Added |
| Arizona State Retirement System | 8,112 | $450.2K | 0.00% | −87−1.1% | Reduced |
| Two Sigma Advisers, LP | 7,800 | $432.9K | 0.00% | −33,900−81.3% | Reduced |
| LPL Financial LLC | 7,362 | $408.6K | 0.00% | +579+8.5% | Added |
| High Net Worth Advisory Group LLC | 7,000 | $388.5K | 0.14% | +500+7.7% | Added |
| Walleye Trading LLC | 6,791 | $376.9K | 0.01% | −8,013−54.1% | Reduced |
| Teacher Retirement System of Texas | 6,706 | $372.0K | 0.00% | −1,480−18.1% | Reduced |
| Fox Run Management, L.L.C. | 6,521 | $361.9K | 0.09% | +6,521 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 6,405 | $355.5K | 0.00% | +1,701+36.2% | Added |
| E Fund Management Co., Ltd. | 6,012 | $333.7K | 0.02% | −2,144−26.3% | Reduced |
| China Universal Asset Management Co., Ltd. | 5,632 | $312.6K | 0.06% | +4,384+351.3% | Added |
| Amalgamated Bank | 5,521 | $306.0K | 0.00% | −251−4.3% | Reduced |
| Simplex Trading, LLC | 5,481 | $304.0K | 0.01% | +5,472+60,800.0% | Added |
| Gotham Asset Management, LLC | 5,251 | $291.4K | 0.01% | +5,251 | New |
| Tower Research Capital LLC (TRC) | 5,190 | $288.0K | 0.00% | +4,140+394.3% | Added |
| Y-Intercept (Hong Kong) Ltd | 4,876 | $270.6K | 0.03% | +4,876 | New |
| Mariner, LLC | 4,699 | $260.8K | 0.00% | +4,699 | New |
| Exchange Traded Concepts, LLC | 4,241 | $235.4K | 0.01% | +1,076+34.0% | Added |
| Farallon Capital Management, L.L.C. | 4,000 | $222.0K | 0.00% | +4,000 | New |
| Ameritas Investment Partners, Inc. | 3,970 | $220.3K | 0.01% | +199+5.3% | Added |
| Ameriprise Financial Inc | 3,755 | $208.4K | 0.00% | +3,755 | New |
| Oracle Alpha Inc. | 3,674 | $203.9K | 0.26% | +3,674 | New |
| Acadian Asset Management LLC | 3,108 | $172.0K | 0.00% | +3,108 | New |
| Metropolitan Life Insurance Co | 2,296 | $127.4K | 0.01% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 2,087 | $115.0K | 0.00% | +1,534+277.4% | Added |
| Virtus ETF Advisers LLC | 1,805 | $100.2K | 0.06% | −800−30.7% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 709 | $39.4K | 0.01% | +709 | New |
| EntryPoint Capital, LLC | 650 | $36.1K | 0.03% | +650 | New |
| Nisa Investment Advisors, LLC | 428 | $23.8K | 0.00% | +400+1,428.6% | Added |
| Advisors Asset Management, Inc. | 399 | $22.1K | 0.00% | +399 | New |
| Daiwa Securities Group Inc. | 176 | $10.0K | 0.00% | 00.0% | Unchanged |
| Turim 21 Investimentos Ltda. | 179 | $9.94K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 172 | $9.55K | 0.00% | +52+43.3% | Added |
| GAMMA Investing LLC | 115 | $7.11K | 0.00% | +115 | New |
| Comerica Bank | 81 | $4.50K | 0.00% | −38−31.9% | Reduced |
| Gradient Investments LLC | 60 | $3.33K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 47 | $2.61K | 0.00% | +47 | New |
| Fortitude Family Office, LLC | 38 | $2.11K | 0.00% | +38 | New |
| Able Wealth Management LLC | 22 | $1.22K | 0.00% | +22 | New |
| CWM, LLC | 11 | $1.00K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 6 | $333 | 0.00% | +6 | New |
| Covestor Ltd | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Novo Holdings A/S | 0 | $0 | 0.00% | −1,075,000−100.0% | Sold out |
| Vivo Capital, LLC | 0 | $0 | 0.00% | −503,565−100.0% | Sold out |
| Clough Capital Partners L P | 0 | $0 | 0.00% | −102,762−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −64,751−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −64,000−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −37,952−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −25,476−100.0% | Sold out |
| Knott David M Jr | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Teachers Retirement System of the State of Kentucky | 0 | $0 | 0.00% | −18,443−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −18,304−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −16,826−100.0% | Sold out |
| Endurant Capital Management LP | 0 | $0 | 0.00% | −14,158−100.0% | Sold out |
| Utah Retirement Systems | 0 | $0 | 0.00% | −12,895−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −8,116−100.0% | Sold out |
| NinePointTwo Capital | 0 | $0 | 0.00% | −6,567−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −6,100−100.0% | Sold out |
| Coppell Advisory Solutions LLC | 0 | $0 | 0.00% | −57−100.0% | Sold out |