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, Q1 2026
Institutional positions in Arcellx, Inc. as of Mar 31, 2026. 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
ACLX is no longer listed, so this page shows Q1 2026. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 240
- +26 vs. Q4 2025
- Shares held
- 57.0M
- −5.51M (−8.8%) vs. Q4 2025
- Total value
- $6.52B
- +$2.44B (+59.9%) vs. Q4 2025
- New holders
- 97
- 62 more added
- Sold out
- 71
- 56 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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, Q1 2026
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vestcor Inc | 19,578 | $2.25M | 0.06% | +19,578 | New |
| Knott David M Jr | 19,433 | $2.23M | 1.33% | −6,267−24.4% | Reduced |
| Abu Dhabi Investment Council Co P.J.S.C | 19,338 | $2.22M | 0.23% | +19,338 | New |
| Susquehanna International Group, LLP | 19,201 | $2.20M | 0.00% | +11,943+164.5% | Added |
| Carmignac Gestion | 18,925 | $2.17M | 0.03% | +18,925 | New |
| Fortress Investment Group LLC | 18,183 | $2.09M | 0.53% | +18,183 | New |
| Profund Advisors LLC | 17,877 | $2.05M | 0.08% | −7,863−30.5% | Reduced |
| Kintayl Capital LP | 17,468 | $2.01M | 1.23% | +17,468 | New |
| State of Wisconsin Investment Board | 17,434 | $2.00M | 0.00% | −3,484−16.7% | Reduced |
| Vanguard Global Advisers, LLC | 17,372 | $1.99M | 0.00% | +17,372 | New |
| Creative Planning | 15,653 | $1.80M | 0.00% | +8,334+113.9% | Added |
| ExodusPoint Capital Management, LP | 14,828 | $1.70M | 0.02% | −202,596−93.2% | Reduced |
| Guggenheim Capital LLC | 14,809 | $1.70M | 0.01% | +6,271+73.4% | Added |
| Wells Fargo & Company | 14,393 | $1.65M | 0.00% | −39,867−73.5% | Reduced |
| Jasper Ridge Partners, L.P. | 13,947 | $1.60M | 0.04% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 13,000 | $1.49M | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 12,523 | $1.44M | 0.00% | +900+7.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 12,314 | $1.41M | 0.00% | +1,197+10.8% | Added |
| Mint Tower Capital Management B.V. | 12,000 | $1.38M | 0.14% | +12,000 | New |
| Manufacturers Life Insurance Company, The | 11,965 | $1.37M | 0.00% | −45,286−79.1% | Reduced |
| RK Capital Management, LLC | 11,858 | $1.36M | 3.13% | +11,858 | New |
| ProShare Advisors LLC | 11,378 | $1.31M | 0.00% | +2,560+29.0% | Added |
| State Board of Administration of Florida Retirement System | 10,850 | $1.25M | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 10,445 | $1.20M | 0.01% | +1,371+15.1% | Added |
| China Universal Asset Management Co., Ltd. | 10,378 | $1.19M | 0.09% | +956+10.1% | Added |
| Point72 Asset Management, L.P. | 9,843 | $1.13M | 0.00% | +9,843 | New |
| State of New Jersey Common Pension Fund D | 9,477 | $1.09M | 0.00% | +12+0.1% | Added |
| Nomura Holdings Inc | 9,301 | $1.07M | 0.01% | +9,301 | New |
| High Net Worth Advisory Group LLC | 8,000 | $918.6K | 0.21% | 00.0% | Unchanged |
| Kapitalo Investimentos Ltda | 7,978 | $916.0K | 0.17% | +7,978 | New |
| Citigroup Inc | 7,816 | $897.4K | 0.00% | −148,703−95.0% | Reduced |
| Arizona State Retirement System | 7,616 | $874.5K | 0.01% | +30.0% | Added |
| CSS LLC | 7,600 | $872.6K | 0.05% | +7,600 | New |
| Aspiriant, LLC | 7,332 | $841.9K | 0.02% | −578−7.3% | Reduced |
| Torno Capital, LLC | 7,285 | $836.5K | 0.35% | +7,285 | New |
| Vanguard Investments Australia, Ltd. | 6,638 | $762.2K | 0.00% | +6,638 | New |
| Transmarket Holdings LP | 6,557 | $752.9K | 0.40% | +6,557 | New |
| Voya Investment Management LLC | 6,378 | $732.3K | 0.00% | −162,302−96.2% | Reduced |
| GTS Securities LLC | 6,338 | $727.7K | 0.03% | +6,338 | New |
| Mariner, LLC | 6,280 | $721.1K | 0.00% | +3,167+101.7% | Added |
| KLP Kapitalforvaltning AS | 6,100 | $700.4K | 0.00% | +200+3.4% | Added |
| Prudential Financial Inc | 6,040 | $693.5K | 0.00% | −10,680−63.9% | Reduced |
| JustInvest LLC | 5,839 | $670.4K | 0.01% | +2,313+65.6% | Added |
| Quantinno Capital Management LP | 5,277 | $605.9K | 0.00% | +1,406+36.3% | Added |
| Victory Capital Management Inc | 5,168 | $593.4K | 0.00% | −49,704−90.6% | Reduced |
| E Fund Management Co., Ltd. | 5,084 | $583.7K | 0.02% | +5,084 | New |
| SEI Investments Co | 4,492 | $515.8K | 0.00% | −11,176−71.3% | Reduced |
| STRS Ohio | 4,300 | $493.7K | 0.00% | −12,569−74.5% | Reduced |
| Pictet Asset Management Holding SA | 4,229 | $485.6K | 0.00% | −338,383−98.8% | Reduced |
| Mercer Global Advisors Inc | 4,057 | $465.8K | 0.00% | −50−1.2% | Reduced |
| BCK Capital Management LP | 4,000 | $459.3K | 2.00% | +4,000 | New |
| Advisors Asset Management, Inc. | 3,978 | $456.8K | 0.01% | −692−14.8% | Reduced |
| Ameriprise Financial Inc | 3,869 | $444.2K | 0.00% | −65,287−94.4% | Reduced |
| Harbour Capital Advisors, LLC | 3,825 | $439.9K | 0.08% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 3,794 | $435.6K | 0.12% | +93+2.5% | Added |
| Deltec Asset Management LLC | 3,750 | $430.6K | 0.08% | +3,750 | New |
| Teacher Retirement System of Texas | 3,627 | $416.5K | 0.00% | −517−12.5% | Reduced |
| Xponance, Inc. | 3,524 | $404.6K | 0.00% | +3,524 | New |
| Advisory Alpha, LLC | 3,303 | $379.3K | 0.01% | −10−0.3% | Reduced |
| Marks Group Wealth Management, Inc | 3,180 | $365.1K | 0.04% | −1,344−29.7% | Reduced |
| Ameritas Investment Partners, Inc. | 3,141 | $360.6K | 0.01% | +280+9.8% | Added |
| Nicholas Investment Partners, LP | 3,133 | $359.7K | 0.03% | +3,133 | New |
| Mirae Asset Global Investments Co., Ltd. | 3,050 | $350.2K | 0.00% | +240+8.5% | Added |
| PenderFund Capital Management Ltd. | 2,900 | $333.0K | 0.05% | +2,900 | New |
| Verdad Advisers, LP | 2,893 | $332.2K | 0.37% | +2,893 | New |
| Principal Financial Group Inc | 2,764 | $317.4K | 0.00% | +2,764 | New |
| Two Sigma Securities, LLC | 2,673 | $306.9K | 0.04% | +2,673 | New |
| Abel Hall, LLC | 2,602 | $298.8K | 0.06% | +2,602 | New |
| CIBC Asset Management Inc | 2,508 | $288.0K | 0.00% | +2,508 | New |
| Vident Advisory, LLC | 2,298 | $263.9K | 0.00% | +2,298 | New |
| Tower Research Capital LLC (TRC) | 2,270 | $260.6K | 0.01% | +1,843+431.6% | Added |
| DnB Asset Management AS | 2,162 | $248.2K | 0.00% | +2,162 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 2,148 | $246.6K | 0.00% | −1,804−45.6% | Reduced |
| FORA Capital, LLC | 2,077 | $238.5K | 0.02% | +2,077 | New |
| Swiss Life Asset Management Ltd | 2,065 | $237.1K | 0.00% | +2,065 | New |
| Empowered Funds, LLC | 2,010 | $230.8K | 0.00% | +2,010 | New |
| CIBC Bancorp USA Inc. | 1,940 | $222.8K | 0.00% | +1,940 | New |
| Jones Financial Companies LLLP | 1,937 | $221.9K | 0.00% | +970+100.3% | Added |
| Meeder Advisory Services, Inc. | 1,928 | $221.4K | 0.01% | +1,928 | New |
| Everence Capital Management Inc | 1,888 | $217.0K | 0.01% | +1,888 | New |
| GF Fund Management Co. Ltd. | 1,299 | $149.2K | 0.00% | +163+14.3% | Added |
| KBC Group NV | 1,056 | $121.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 954 | $109.5K | 0.00% | +860+914.9% | Added |
| US Bancorp | 909 | $104.4K | 0.00% | −39−4.1% | Reduced |
| Meteora Capital, LLC | 876 | $100.6K | 0.01% | +876 | New |
| Nisa Investment Advisors, LLC | 844 | $96.9K | 0.00% | +415+96.7% | Added |
| Quantbot Technologies LP | 749 | $86.0K | 0.00% | +749 | New |
| The PNC Financial Services Group, Inc. | 580 | $66.6K | 0.00% | +155+36.5% | Added |
| State of Wyoming | 524 | $60.2K | 0.01% | −13−2.4% | Reduced |
| Strengthening Families & Communities, LLC | 500 | $57.4K | 0.01% | +500 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 485 | $55.7K | 0.00% | +119+32.5% | Added |
| Rockefeller Capital Management L.P. | 484 | $55.6K | 0.00% | +387+399.0% | Added |
| Group One Trading, L.P. | 462 | $53.0K | 0.00% | −1,507−76.5% | Reduced |
| GAMMA Investing LLC | 456 | $52.4K | 0.00% | +122+36.5% | Added |
| Fifth Third Bancorp | 382 | $43.8K | 0.00% | +382 | New |
| Bayforest Capital Ltd | 375 | $43.1K | 0.05% | +375 | New |
| Quarry LP | 360 | $41.3K | 0.01% | +360 | New |
| Larson Financial Group LLC | 357 | $41.0K | 0.00% | +278+351.9% | Added |
| Smartleaf Asset Management LLC | 305 | $35.0K | 0.00% | −12−3.8% | Reduced |
| Versant Capital Management, Inc | 250 | $28.7K | 0.00% | +7+2.9% | Added |