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 2024
Institutional positions in Arcellx, Inc. as of Dec 31, 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
- 211
- +27 vs. Q3 2024
- Shares held
- 59.2M
- +9.81M (+19.9%) vs. Q3 2024
- Total value
- $4.54B
- +$416.0M (+10.1%) vs. Q3 2024
- New holders
- 52
- 75 more added
- Sold out
- 25
- 55 more reduced
2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Walleye Capital LLC | 10,659 | $817.4K | 0.01% | +10,659 | New |
| Moody Aldrich Partners LLC | 10,683 | $819.3K | 0.15% | −16,122−60.1% | Reduced |
| Acuta Capital Partners, LLC | 10,743 | $823.9K | 0.83% | −51,357−82.7% | Reduced |
| State Board of Administration of Florida Retirement System | 10,850 | $832.1K | 0.00% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 11,100 | $851.3K | 0.00% | +1,000+9.9% | Added |
| China Universal Asset Management Co., Ltd. | 11,466 | $879.3K | 0.08% | +1,127+10.9% | Added |
| Handelsbanken Fonder AB | 11,600 | $890.0K | 0.00% | −1,000−7.9% | Reduced |
| Jasper Ridge Partners, L.P. | 11,820 | $906.5K | 0.03% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 12,582 | $964.9K | 0.00% | +97+0.8% | Added |
| Profund Advisors LLC | 14,008 | $1.07M | 0.04% | +2,563+22.4% | Added |
| STRS Ohio | 14,300 | $1.10M | 0.00% | +2,200+18.2% | Added |
| ProShare Advisors LLC | 14,700 | $1.13M | 0.00% | +3,378+29.8% | Added |
| Jackson Creek Investment Advisors LLC | 15,389 | $1.18M | 0.36% | +15,389 | New |
| Dark Forest Capital Management LP | 16,067 | $1.23M | 0.18% | −11,536−41.8% | Reduced |
| Intech Investment Management LLC | 17,207 | $1.32M | 0.01% | +7,628+79.6% | Added |
| Wexford Capital LP | 17,994 | $1.38M | 0.35% | −15,470−46.2% | Reduced |
| Wellington Management Group LLP | 19,693 | $1.51M | 0.00% | −1,275−6.1% | Reduced |
| BNP Paribas Arbitrage, SA | 19,965 | $1.53M | 0.00% | +19,965 | New |
| Martingale Asset Management L P | 20,096 | $1.54M | 0.04% | −1,088−5.1% | Reduced |
| New York State Common Retirement Fund | 20,243 | $1.55M | 0.00% | +1,415+7.5% | Added |
| AQR Capital Management LLC | 20,248 | $1.55M | 0.00% | +3,709+22.4% | Added |
| Corebridge Financial, Inc. | 21,430 | $1.64M | 0.01% | −1,617−7.0% | Reduced |
| Erste Asset Management GmbH | 21,000 | $1.66M | 0.02% | 00.0% | Unchanged |
| Millennium Management LLC | 22,370 | $1.72M | 0.00% | +22,370 | New |
| Harbor Capital Advisors, Inc. | 23,465 | $1.80M | 0.08% | −4,431−15.9% | Reduced |
| State of New Jersey Common Pension Fund D | 23,966 | $1.84M | 0.01% | +23,966 | New |
| Citadel Advisors LLC | 25,226 | $1.93M | 0.00% | +8,139+47.6% | Added |
| Congress Asset Management Co | 25,321 | $1.94M | 0.01% | +2,586+11.4% | Added |
| MetLife Investment Management | 26,058 | $2.00M | 0.01% | +1,077+4.3% | Added |
| DekaBank Deutsche Girozentrale | 30,000 | $2.00M | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 26,550 | $2.04M | 0.00% | +3,610+15.7% | Added |
| Wells Fargo & Company | 26,638 | $2.04M | 0.00% | +7,002+35.7% | Added |
| Norges Bank | 27,251 | $2.09M | 0.00% | +27,251 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 27,363 | $2.10M | 0.00% | +1,589+6.2% | Added |
| American Century Companies Inc | 29,446 | $2.26M | 0.00% | +29,446 | New |
| California State Teachers Retirement System | 30,961 | $2.37M | 0.00% | −206−0.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 32,737 | $2.51M | 0.02% | +32,737 | New |
| State of Wisconsin Investment Board | 34,332 | $2.63M | 0.01% | +4,092+13.5% | Added |
| Allostery Investments LP | 35,000 | $2.68M | 5.27% | +35,000 | New |
| Susquehanna International Group, LLP | 42,540 | $3.26M | 0.00% | −53,328−55.6% | Reduced |
| HealthInvest Partners AB | 42,071 | $3.30M | 1.56% | +1,841+4.6% | Added |
| EAM Investors, LLC | 43,009 | $3.30M | 0.47% | +43,009 | New |
| Legal & General Group Plc | 43,033 | $3.30M | 0.00% | +2,331+5.7% | Added |
| Rhenman & Partners Asset Management AB | 43,500 | $3.34M | 0.34% | +11,500+35.9% | Added |
| HighVista Strategies LLC | 43,804 | $3.36M | 1.25% | −11,335−20.6% | Reduced |
| Parkman Healthcare Partners LLC | 44,492 | $3.41M | 0.45% | −22,000−33.1% | Reduced |
| Edmond de Rothschild Holding S.A. | 45,480 | $3.49M | 0.06% | 00.0% | Unchanged |
| Nicholas Investment Partners, LP | 48,086 | $3.69M | 0.32% | +11,500+31.4% | Added |
| Renaissance Technologies LLC | 49,100 | $3.77M | 0.01% | +49,100 | New |
| Alliancebernstein L.P. | 51,250 | $3.93M | 0.00% | −6,181−10.8% | Reduced |
| Franklin Resources Inc | 52,297 | $4.01M | 0.00% | −4,456−7.9% | Reduced |
| PFM Health Sciences, LP | 56,603 | $4.34M | 0.33% | −3,999−6.6% | Reduced |
| Rhumbline Advisers | 59,903 | $4.59M | 0.00% | +1,125+1.9% | Added |
| Swiss National Bank | 63,400 | $4.86M | 0.00% | +500+0.8% | Added |
| Citigroup Inc | 69,408 | $5.32M | 0.01% | +26,254+60.8% | Added |
| Thrivent Financial for Lutherans | 69,461 | $5.33M | 0.01% | +21,221+44.0% | Added |
| Rafferty Asset Management, LLC | 71,037 | $5.45M | 0.02% | +15,293+27.4% | Added |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 74,100 | $5.68M | 0.16% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 78,584 | $6.03M | 0.02% | −1,352−1.7% | Reduced |
| Decheng Capital LLC | 84,377 | $6.47M | 1.39% | +63,200+298.4% | Added |
| Barclays PLC | 91,595 | $7.02M | 0.00% | +6,273+7.4% | Added |
| Manufacturers Life Insurance Company, The | 98,314 | $7.54M | 0.01% | +13,475+15.9% | Added |
| Integral Health Asset Management, LLC | 100,000 | $7.67M | 0.68% | −175,000−63.6% | Reduced |
| Nuveen Asset Management, LLC | 111,786 | $8.57M | 0.00% | −9,110−7.5% | Reduced |
| Soleus Capital Management, L.P. | 121,031 | $9.28M | 0.70% | +28,000+30.1% | Added |
| Woodline Partners LP | 125,649 | $9.64M | 0.07% | +14,660+13.2% | Added |
| Raymond James Financial Inc | 130,601 | $10.0M | 0.00% | +130,601 | New |
| First Trust Advisors LP | 134,197 | $10.3M | 0.01% | +98,340+274.3% | Added |
| Voya Investment Management LLC | 136,203 | $10.4M | 0.01% | −10,445−7.1% | Reduced |
| Bank of New York Mellon Corp | 144,409 | $11.1M | 0.00% | +27,350+23.4% | Added |
| Bank of America Corp | 148,107 | $11.4M | 0.00% | −72,245−32.8% | Reduced |
| First Turn Management, LLC | 152,356 | $11.7M | 2.09% | −61,942−28.9% | Reduced |
| Qube Research & Technologies Ltd | 154,400 | $11.8M | 0.02% | +104,149+207.3% | Added |
| Federated Hermes, Inc. | 156,094 | $12.0M | 0.03% | +91,430+141.4% | Added |
| TD Asset Management Inc | 163,918 | $12.6M | 0.01% | +14,400+9.6% | Added |
| Voloridge Investment Management, LLC | 178,198 | $13.7M | 0.05% | +8,936+5.3% | Added |
| Victory Capital Management Inc | 184,183 | $14.1M | 0.01% | −43,236−19.0% | Reduced |
| Candriam Luxembourg S.C.A. | 194,996 | $15.0M | 0.09% | −45,367−18.9% | Reduced |
| UBS Group AG | 207,539 | $15.9M | 0.00% | +150,176+261.8% | Added |
| JPMorgan Chase & Co | 224,456 | $17.2M | 0.00% | −25,667−10.3% | Reduced |
| Artia Global Partners LP | 229,785 | $17.6M | 7.11% | +229,785 | New |
| Capital World Investors | 252,878 | $19.4M | 0.00% | +252,878 | New |
| Samsara BioCapital, LLC | 253,641 | $19.5M | 2.67% | −100,000−28.3% | Reduced |
| UBS Asset Management Americas Inc | 267,384 | $20.5M | 0.00% | −15,471−5.5% | Reduced |
| Russell Investments Group, Ltd. | 269,386 | $20.7M | 0.03% | −51,284−16.0% | Reduced |
| Goldman Sachs Group Inc | 290,011 | $22.2M | 0.00% | −9,248−3.1% | Reduced |
| Dimensional Fund Advisors LP | 305,088 | $23.4M | 0.01% | +186,013+156.2% | Added |
| Charles Schwab Investment Management Inc | 343,085 | $26.3M | 0.00% | +14,992+4.6% | Added |
| Deutsche Bank AG | 344,529 | $26.4M | 0.01% | −121,161−26.0% | Reduced |
| Bamco Inc | 348,333 | $26.7M | 0.07% | +5,501+1.6% | Added |
| Northern Trust Corp | 410,733 | $31.5M | 0.00% | +26,625+6.9% | Added |
| Affinity Asset Advisors, LLC | 425,000 | $32.6M | 5.09% | +25,000+6.3% | Added |
| Vestal Point Capital, LP | 475,000 | $36.4M | 2.16% | −200,000−29.6% | Reduced |
| Morgan Stanley | 618,117 | $47.4M | 0.00% | −139,035−18.4% | Reduced |
| T. Rowe Price Investment Management, Inc. | 705,922 | $54.1M | 0.03% | −238,716−25.3% | Reduced |
| Lord, Abbett & Co. LLC | 974,832 | $74.8M | 0.24% | +82,984+9.3% | Added |
| Geode Capital Management, LLC | 979,026 | $75.1M | 0.01% | +4,059+0.4% | Added |
| AJU IB Investment Co., Ltd. | 1,047,557 | $80.3M | 78.18% | +1,047,557 | New |
| Cormorant Asset Management, LP | 1,300,000 | $99.7M | 5.48% | +50,000+4.0% | Added |
| Janus Henderson Group PLC | 1,557,092 | $119.5M | 0.06% | −454,858−22.6% | Reduced |