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 |
|---|---|---|---|---|---|
| FMR LLC | 7,956,633 | $610.2M | 0.04% | +1,477,360+22.8% | Added |
| Gilead Sciences, Inc. | 6,720,803 | $515.4M | 33.23% | +6,720,803 | New |
| Paradigm Biocapital Advisors LP | 4,371,601 | $335.3M | 11.66% | +371,601+9.3% | Added |
| BlackRock, Inc. | 3,854,021 | $295.6M | 0.01% | −392,671−9.2% | Reduced |
| NEA Management Company, LLC | 3,745,262 | $287.2M | 16.21% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 3,478,888 | $266.8M | 7.43% | −409,781−10.5% | Reduced |
| Vanguard Group Inc | 3,330,092 | $255.4M | 0.00% | +867,996+35.3% | Added |
| Ra Capital Management, L.P. | 2,787,327 | $213.8M | 2.84% | +935,848+50.5% | Added |
| Sr One Capital Management, LP | 2,346,630 | $180.0M | 43.88% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 2,121,322 | $162.7M | 0.02% | +220,711+11.6% | Added |
| State Street Corp | 1,775,372 | $136.2M | 0.01% | +230,433+14.9% | Added |
| Janus Henderson Group PLC | 1,557,092 | $119.5M | 0.06% | −454,858−22.6% | Reduced |
| Cormorant Asset Management, LP | 1,300,000 | $99.7M | 5.48% | +50,000+4.0% | Added |
| AJU IB Investment Co., Ltd. | 1,047,557 | $80.3M | 78.18% | +1,047,557 | New |
| Geode Capital Management, LLC | 979,026 | $75.1M | 0.01% | +4,059+0.4% | Added |
| Lord, Abbett & Co. LLC | 974,832 | $74.8M | 0.24% | +82,984+9.3% | Added |
| T. Rowe Price Investment Management, Inc. | 705,922 | $54.1M | 0.03% | −238,716−25.3% | Reduced |
| Morgan Stanley | 618,117 | $47.4M | 0.00% | −139,035−18.4% | Reduced |
| Vestal Point Capital, LP | 475,000 | $36.4M | 2.16% | −200,000−29.6% | Reduced |
| Affinity Asset Advisors, LLC | 425,000 | $32.6M | 5.09% | +25,000+6.3% | Added |
| Northern Trust Corp | 410,733 | $31.5M | 0.00% | +26,625+6.9% | Added |
| Bamco Inc | 348,333 | $26.7M | 0.07% | +5,501+1.6% | Added |
| Deutsche Bank AG | 344,529 | $26.4M | 0.01% | −121,161−26.0% | Reduced |
| Charles Schwab Investment Management Inc | 343,085 | $26.3M | 0.00% | +14,992+4.6% | Added |
| Dimensional Fund Advisors LP | 305,088 | $23.4M | 0.01% | +186,013+156.2% | Added |
| Goldman Sachs Group Inc | 290,011 | $22.2M | 0.00% | −9,248−3.1% | Reduced |
| Russell Investments Group, Ltd. | 269,386 | $20.7M | 0.03% | −51,284−16.0% | Reduced |
| UBS Asset Management Americas Inc | 267,384 | $20.5M | 0.00% | −15,471−5.5% | Reduced |
| Samsara BioCapital, LLC | 253,641 | $19.5M | 2.67% | −100,000−28.3% | Reduced |
| Capital World Investors | 252,878 | $19.4M | 0.00% | +252,878 | New |
| Artia Global Partners LP | 229,785 | $17.6M | 7.11% | +229,785 | New |
| JPMorgan Chase & Co | 224,456 | $17.2M | 0.00% | −25,667−10.3% | Reduced |
| UBS Group AG | 207,539 | $15.9M | 0.00% | +150,176+261.8% | Added |
| Candriam Luxembourg S.C.A. | 194,996 | $15.0M | 0.09% | −45,367−18.9% | Reduced |
| Victory Capital Management Inc | 184,183 | $14.1M | 0.01% | −43,236−19.0% | Reduced |
| Voloridge Investment Management, LLC | 178,198 | $13.7M | 0.05% | +8,936+5.3% | Added |
| TD Asset Management Inc | 163,918 | $12.6M | 0.01% | +14,400+9.6% | Added |
| Federated Hermes, Inc. | 156,094 | $12.0M | 0.03% | +91,430+141.4% | Added |
| Qube Research & Technologies Ltd | 154,400 | $11.8M | 0.02% | +104,149+207.3% | Added |
| First Turn Management, LLC | 152,356 | $11.7M | 2.09% | −61,942−28.9% | Reduced |
| Bank of America Corp | 148,107 | $11.4M | 0.00% | −72,245−32.8% | Reduced |
| Bank of New York Mellon Corp | 144,409 | $11.1M | 0.00% | +27,350+23.4% | Added |
| Voya Investment Management LLC | 136,203 | $10.4M | 0.01% | −10,445−7.1% | Reduced |
| First Trust Advisors LP | 134,197 | $10.3M | 0.01% | +98,340+274.3% | Added |
| Raymond James Financial Inc | 130,601 | $10.0M | 0.00% | +130,601 | New |
| Woodline Partners LP | 125,649 | $9.64M | 0.07% | +14,660+13.2% | Added |
| Soleus Capital Management, L.P. | 121,031 | $9.28M | 0.70% | +28,000+30.1% | Added |
| Nuveen Asset Management, LLC | 111,786 | $8.57M | 0.00% | −9,110−7.5% | Reduced |
| Integral Health Asset Management, LLC | 100,000 | $7.67M | 0.68% | −175,000−63.6% | Reduced |
| Manufacturers Life Insurance Company, The | 98,314 | $7.54M | 0.01% | +13,475+15.9% | Added |
| Barclays PLC | 91,595 | $7.02M | 0.00% | +6,273+7.4% | Added |
| Decheng Capital LLC | 84,377 | $6.47M | 1.39% | +63,200+298.4% | Added |
| Jacobs Levy Equity Management, Inc | 78,584 | $6.03M | 0.02% | −1,352−1.7% | Reduced |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 74,100 | $5.68M | 0.16% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 71,037 | $5.45M | 0.02% | +15,293+27.4% | Added |
| Thrivent Financial for Lutherans | 69,461 | $5.33M | 0.01% | +21,221+44.0% | Added |
| Citigroup Inc | 69,408 | $5.32M | 0.01% | +26,254+60.8% | Added |
| Swiss National Bank | 63,400 | $4.86M | 0.00% | +500+0.8% | Added |
| Rhumbline Advisers | 59,903 | $4.59M | 0.00% | +1,125+1.9% | Added |
| PFM Health Sciences, LP | 56,603 | $4.34M | 0.33% | −3,999−6.6% | Reduced |
| Franklin Resources Inc | 52,297 | $4.01M | 0.00% | −4,456−7.9% | Reduced |
| Alliancebernstein L.P. | 51,250 | $3.93M | 0.00% | −6,181−10.8% | Reduced |
| Renaissance Technologies LLC | 49,100 | $3.77M | 0.01% | +49,100 | New |
| Nicholas Investment Partners, LP | 48,086 | $3.69M | 0.32% | +11,500+31.4% | Added |
| Edmond de Rothschild Holding S.A. | 45,480 | $3.49M | 0.06% | 00.0% | Unchanged |
| Parkman Healthcare Partners LLC | 44,492 | $3.41M | 0.45% | −22,000−33.1% | Reduced |
| HighVista Strategies LLC | 43,804 | $3.36M | 1.25% | −11,335−20.6% | Reduced |
| Rhenman & Partners Asset Management AB | 43,500 | $3.34M | 0.34% | +11,500+35.9% | Added |
| Legal & General Group Plc | 43,033 | $3.30M | 0.00% | +2,331+5.7% | Added |
| EAM Investors, LLC | 43,009 | $3.30M | 0.47% | +43,009 | New |
| HealthInvest Partners AB | 42,071 | $3.30M | 1.56% | +1,841+4.6% | Added |
| Susquehanna International Group, LLP | 42,540 | $3.26M | 0.00% | −53,328−55.6% | Reduced |
| Allostery Investments LP | 35,000 | $2.68M | 5.27% | +35,000 | New |
| State of Wisconsin Investment Board | 34,332 | $2.63M | 0.01% | +4,092+13.5% | Added |
| Schonfeld Strategic Advisors LLC | 32,737 | $2.51M | 0.02% | +32,737 | New |
| California State Teachers Retirement System | 30,961 | $2.37M | 0.00% | −206−0.7% | Reduced |
| American Century Companies Inc | 29,446 | $2.26M | 0.00% | +29,446 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 27,363 | $2.10M | 0.00% | +1,589+6.2% | Added |
| Norges Bank | 27,251 | $2.09M | 0.00% | +27,251 | New |
| Wells Fargo & Company | 26,638 | $2.04M | 0.00% | +7,002+35.7% | Added |
| Invesco Ltd. | 26,550 | $2.04M | 0.00% | +3,610+15.7% | Added |
| DekaBank Deutsche Girozentrale | 30,000 | $2.00M | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 26,058 | $2.00M | 0.01% | +1,077+4.3% | Added |
| Congress Asset Management Co | 25,321 | $1.94M | 0.01% | +2,586+11.4% | Added |
| Citadel Advisors LLC | 25,226 | $1.93M | 0.00% | +8,139+47.6% | Added |
| State of New Jersey Common Pension Fund D | 23,966 | $1.84M | 0.01% | +23,966 | New |
| Harbor Capital Advisors, Inc. | 23,465 | $1.80M | 0.08% | −4,431−15.9% | Reduced |
| Millennium Management LLC | 22,370 | $1.72M | 0.00% | +22,370 | New |
| Erste Asset Management GmbH | 21,000 | $1.66M | 0.02% | 00.0% | Unchanged |
| Corebridge Financial, Inc. | 21,430 | $1.64M | 0.01% | −1,617−7.0% | Reduced |
| AQR Capital Management LLC | 20,248 | $1.55M | 0.00% | +3,709+22.4% | Added |
| New York State Common Retirement Fund | 20,243 | $1.55M | 0.00% | +1,415+7.5% | Added |
| Martingale Asset Management L P | 20,096 | $1.54M | 0.04% | −1,088−5.1% | Reduced |
| BNP Paribas Arbitrage, SA | 19,965 | $1.53M | 0.00% | +19,965 | New |
| Wellington Management Group LLP | 19,693 | $1.51M | 0.00% | −1,275−6.1% | Reduced |
| Wexford Capital LP | 17,994 | $1.38M | 0.35% | −15,470−46.2% | Reduced |
| Intech Investment Management LLC | 17,207 | $1.32M | 0.01% | +7,628+79.6% | Added |
| Dark Forest Capital Management LP | 16,067 | $1.23M | 0.18% | −11,536−41.8% | Reduced |
| Jackson Creek Investment Advisors LLC | 15,389 | $1.18M | 0.36% | +15,389 | New |
| ProShare Advisors LLC | 14,700 | $1.13M | 0.00% | +3,378+29.8% | Added |