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 2025
Institutional positions in Arcellx, Inc. as of Mar 31, 2025. 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
- 198
- −12 vs. Q4 2024
- Shares held
- 61.6M
- +2.52M (+4.3%) vs. Q4 2024
- Total value
- $4.04B
- −$486.0M (−10.7%) vs. Q4 2024
- New holders
- 25
- 74 more added
- Sold out
- 37
- 70 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Gilead Sciences, Inc. | 6,720,803 | $440.9M | 37.32% | 00.0% | Unchanged |
| FMR LLC | 6,303,679 | $413.5M | 0.03% | −1,652,954−20.8% | Reduced |
| Paradigm Biocapital Advisors LP | 4,492,032 | $294.7M | 13.56% | +120,431+2.8% | Added |
| Vanguard Group Inc | 3,985,156 | $261.4M | 0.00% | +655,064+19.7% | Added |
| BlackRock, Inc. | 3,967,569 | $260.3M | 0.01% | +113,548+2.9% | Added |
| NEA Management Company, LLC | 3,745,262 | $245.7M | 18.92% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 3,036,527 | $199.2M | 3.33% | +249,200+8.9% | Added |
| Perceptive Advisors LLC | 2,926,478 | $192.0M | 6.81% | −552,410−15.9% | Reduced |
| Vestal Point Capital, LP | 2,387,720 | $156.6M | 11.19% | +1,912,720+402.7% | Added |
| Sr One Capital Management, LP | 2,346,630 | $153.9M | 39.54% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 1,839,624 | $120.7M | 0.01% | −281,698−13.3% | Reduced |
| State Street Corp | 1,666,451 | $109.3M | 0.00% | −108,921−6.1% | Reduced |
| T. Rowe Price Investment Management, Inc. | 1,665,138 | $109.2M | 0.07% | +959,216+135.9% | Added |
| Janus Henderson Group PLC | 1,510,494 | $102.6M | 0.06% | −46,598−3.0% | Reduced |
| Cormorant Asset Management, LP | 1,050,000 | $68.9M | 5.22% | −250,000−19.2% | Reduced |
| AJU IB Investment Co., Ltd. | 1,047,557 | $68.7M | 81.77% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,020,540 | $67.0M | 0.01% | +41,514+4.2% | Added |
| Citadel Advisors LLC | 726,127 | $47.6M | 0.05% | +700,901+2,778.5% | Added |
| Capital World Investors | 709,374 | $46.5M | 0.01% | +456,496+180.5% | Added |
| JPMorgan Chase & Co | 683,581 | $44.8M | 0.00% | +459,125+204.6% | Added |
| Lord, Abbett & Co. LLC | 664,526 | $43.6M | 0.16% | −310,306−31.8% | Reduced |
| Affinity Asset Advisors, LLC | 530,000 | $34.8M | 5.44% | +105,000+24.7% | Added |
| Dimensional Fund Advisors LP | 486,269 | $31.9M | 0.01% | +181,181+59.4% | Added |
| Bamco Inc | 467,261 | $30.7M | 0.09% | +118,928+34.1% | Added |
| Morgan Stanley | 462,333 | $30.3M | 0.00% | −155,784−25.2% | Reduced |
| Northern Trust Corp | 403,841 | $26.5M | 0.00% | −6,892−1.7% | Reduced |
| Deutsche Bank AG | 343,694 | $22.5M | 0.01% | −835−0.2% | Reduced |
| Charles Schwab Investment Management Inc | 336,949 | $22.1M | 0.00% | −6,136−1.8% | Reduced |
| Voya Investment Management LLC | 277,102 | $18.2M | 0.02% | +140,899+103.4% | Added |
| StemPoint Capital LP | 273,774 | $18.0M | 5.74% | +273,774 | New |
| UBS Asset Management Americas Inc | 264,756 | $17.4M | 0.00% | −2,628−1.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 233,522 | $15.3M | 0.10% | +200,785+613.3% | Added |
| Artia Global Partners LP | 229,085 | $15.0M | 4.41% | −700−0.3% | Reduced |
| UBS Group AG | 209,572 | $13.7M | 0.00% | +2,033+1.0% | Added |
| Victory Capital Management Inc | 178,110 | $11.7M | 0.01% | −6,073−3.3% | Reduced |
| Goldman Sachs Group Inc | 174,788 | $11.5M | 0.00% | −115,223−39.7% | Reduced |
| Qube Research & Technologies Ltd | 173,059 | $11.4M | 0.02% | +18,659+12.1% | Added |
| TD Asset Management Inc | 168,320 | $11.0M | 0.01% | +4,402+2.7% | Added |
| Woodline Partners LP | 165,305 | $10.8M | 0.07% | +39,656+31.6% | Added |
| Bank of America Corp | 163,670 | $10.7M | 0.00% | +15,563+10.5% | Added |
| Soleus Capital Management, L.P. | 153,031 | $10.0M | 0.79% | +32,000+26.4% | Added |
| Russell Investments Group, Ltd. | 152,023 | $9.97M | 0.01% | −117,363−43.6% | Reduced |
| Bank of New York Mellon Corp | 143,617 | $9.42M | 0.00% | −792−0.5% | Reduced |
| Samsara BioCapital, LLC | 135,276 | $8.87M | 1.58% | −118,365−46.7% | Reduced |
| Raymond James Financial Inc | 128,778 | $8.45M | 0.00% | −1,823−1.4% | Reduced |
| Nuveen, LLC | 111,786 | $7.33M | 0.00% | +111,786 | New |
| Manufacturers Life Insurance Company, The | 86,828 | $5.70M | 0.01% | −11,486−11.7% | Reduced |
| Citigroup Inc | 80,079 | $5.25M | 0.00% | +10,671+15.4% | Added |
| Voloridge Investment Management, LLC | 78,236 | $5.13M | 0.02% | −99,962−56.1% | Reduced |
| Barclays PLC | 77,639 | $5.09M | 0.00% | −13,956−15.2% | Reduced |
| Dark Forest Capital Management LP | 71,070 | $4.66M | 0.21% | +55,003+342.3% | Added |
| Candriam Luxembourg S.C.A. | 70,538 | $4.63M | 0.03% | −124,458−63.8% | Reduced |
| Renaissance Technologies LLC | 68,000 | $4.46M | 0.01% | +18,900+38.5% | Added |
| Pier Capital, LLC | 67,976 | $4.46M | 0.75% | +67,976 | New |
| Parkman Healthcare Partners LLC | 67,390 | $4.42M | 0.52% | +22,898+51.5% | Added |
| First Trust Advisors LP | 67,201 | $4.41M | 0.00% | −66,996−49.9% | Reduced |
| Caption Management, LLC | 67,069 | $4.40M | 0.20% | +67,069 | New |
| Rhumbline Advisers | 63,751 | $4.18M | 0.00% | +3,848+6.4% | Added |
| Swiss National Bank | 62,900 | $4.13M | 0.00% | −500−0.8% | Reduced |
| Susquehanna International Group, LLP | 61,623 | $4.04M | 0.01% | +19,083+44.9% | Added |
| Rafferty Asset Management, LLC | 58,507 | $3.84M | 0.02% | −12,530−17.6% | Reduced |
| Ameriprise Financial Inc | 55,437 | $3.64M | 0.00% | +45,266+445.0% | Added |
| American Century Companies Inc | 54,321 | $3.56M | 0.00% | +24,875+84.5% | Added |
| Alliancebernstein L.P. | 51,295 | $3.36M | 0.00% | +45+0.1% | Added |
| Millennium Management LLC | 51,056 | $3.35M | 0.00% | +28,686+128.2% | Added |
| Decheng Capital LLC | 50,000 | $3.28M | 0.92% | −34,377−40.7% | Reduced |
| HighVista Strategies LLC | 47,496 | $3.12M | 1.20% | +3,692+8.4% | Added |
| Federated Hermes, Inc. | 46,224 | $3.03M | 0.01% | −109,870−70.4% | Reduced |
| Edmond de Rothschild Holding S.A. | 45,480 | $2.98M | 0.05% | 00.0% | Unchanged |
| Readystate Asset Management LP | 45,058 | $2.96M | 0.15% | +45,058 | New |
| Great Point Partners LLC | 45,000 | $2.95M | 1.60% | +45,000 | New |
| BNP Paribas Arbitrage, SA | 44,354 | $2.91M | 0.00% | +24,389+122.2% | Added |
| HealthInvest Partners AB | 44,171 | $2.90M | 1.28% | +2,100+5.0% | Added |
| Allostery Investments LP | 44,000 | $2.89M | 4.16% | +9,000+25.7% | Added |
| Rhenman & Partners Asset Management AB | 43,500 | $2.85M | 0.33% | 00.0% | Unchanged |
| Legal & General Group Plc | 41,607 | $2.73M | 0.00% | −1,426−3.3% | Reduced |
| State of Wisconsin Investment Board | 38,103 | $2.50M | 0.01% | +3,771+11.0% | Added |
| Sector Gamma AS | 35,000 | $2.30M | 0.74% | +35,000 | New |
| DekaBank Deutsche Girozentrale | 30,000 | $2.12M | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 30,336 | $1.99M | 0.00% | −625−2.0% | Reduced |
| Invesco Ltd. | 30,242 | $1.98M | 0.00% | +3,692+13.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 28,753 | $1.89M | 0.00% | +1,390+5.1% | Added |
| NEOS Investment Management LLC | 28,450 | $1.87M | 0.04% | +20,982+281.0% | Added |
| Tema ETFs LLC | 28,450 | $1.87M | 0.56% | +20,982+281.0% | Added |
| Franklin Resources Inc | 27,007 | $1.77M | 0.00% | −25,290−48.4% | Reduced |
| Empowered Funds, LLC | 26,954 | $1.77M | 0.03% | +26,954 | New |
| Wells Fargo & Company | 26,834 | $1.76M | 0.00% | +196+0.7% | Added |
| MetLife Investment Management | 25,610 | $1.68M | 0.01% | −448−1.7% | Reduced |
| Congress Asset Management Co | 25,107 | $1.65M | 0.01% | −214−0.8% | Reduced |
| Harbor Capital Advisors, Inc. | 22,836 | $1.50M | 0.07% | −629−2.7% | Reduced |
| Intech Investment Management LLC | 21,967 | $1.44M | 0.01% | +4,760+27.7% | Added |
| Erste Asset Management GmbH | 21,000 | $1.43M | 0.02% | 00.0% | Unchanged |
| Corebridge Financial, Inc. | 21,428 | $1.41M | 0.01% | −20.0% | Reduced |
| Wellington Management Group LLP | 18,439 | $1.21M | 0.00% | −1,254−6.4% | Reduced |
| AQR Capital Management LLC | 17,140 | $1.12M | 0.00% | −3,108−15.3% | Reduced |
| PFM Health Sciences, LP | 15,488 | $1.02M | 0.08% | −41,115−72.6% | Reduced |
| Creative Planning | 15,415 | $1.01M | 0.00% | +11,222+267.6% | Added |
| Marshall Wace, LLP | 15,400 | $1.01M | 0.00% | +15,400 | New |
| Knott David M Jr | 15,000 | $984.0K | 0.46% | +15,000 | New |
| STRS Ohio | 14,300 | $938.1K | 0.00% | 00.0% | Unchanged |