ArcellxACLX
13F holders, Q2 2025 (June 30)202holders +5
29new positions
24sold out
6famous investors
$65.34avg. 13F price*
At the end of Q2 2025, 202 institutions reported holding Arcellx Inc. (ACLX) in their 13F filings, up 5 from Q1 2025. 29 opened new positions and 24 sold out. The largest holders were Gilead Sciences, Inc. ($442.6M), FMR LLC ($393.3M) and Paradigm Biocapital Advisors LP ($306.1M). 6 famous investors held it, including Ron Baron (0.1% of Baron Capital (BAMCO)'s portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Arcellx Inc.
- CUSIP
- 03940C100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 29 | $65.1M |
| Exits | 24 | $38.8M |
All 13F filers, Q1 2025 → Q2 2025: 4,943,863 shares bought and 5,139,522 shares sold, net −195,659 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 202 holders
| Gilead Sciences, Inc. | 34.57% | No change | 6,720,803 | $442.6M |
| FMR LLC | 0.02% | Reduce -5.3% | 5,972,151 | $393.3M |
| Paradigm Biocapital Advisors LP | 13.07% | Add +3.5% | 4,649,016 | $306.1M |
| Vanguard Group Inc. | 0.00% | Reduce -1.0% | 3,944,885 | $259.8M |
| NEA Management Company, LLC | 18.56% | No change | 3,745,262 | $246.6M |
| BlackRock, Inc. | 0.00% | Reduce -12.6% | 3,468,184 | $228.4M |
| Ra Capital Management, L.P. | 3.37% | No change | 3,036,527 | $200.0M |
| Vestal Point Capital, LP | 9.53% | Add +15.2% | 2,750,000 | $181.1M |
| Perceptive Advisors LLC | 6.12% | Reduce -15.3% | 2,478,000 | $163.2M |
| SR One Capital Management, LP | 33.49% | No change | 2,346,630 | $154.5M |
| T. Rowe Price Investment Management, Inc. | 0.08% | Add +16.7% | 1,943,726 | $128.0M |
| State Street Corp. | 0.00% | Reduce -4.5% | 1,592,313 | $104.9M |
| T. Rowe Price Associates Inc. | 0.01% | Reduce -21.8% | 1,438,773 | $94.7M |
| AJU IB Investment Co., Ltd. | 75.07% | No change | 1,047,557 | $69.0M |
| Janus Henderson Group PLC | 0.03% | Reduce -32.2% | 1,023,582 | $67.4M |
| JPMorgan Chase & Co. | 0.00% | Add +42.9% | 976,968 | $64.3M |
| Geode Capital Management, LLC | 0.00% | Reduce -5.8% | 961,778 | $63.3M |
| Cormorant Asset Management, LP | 3.92% | Reduce -23.8% | 800,000 | $52.7M |
| Capital World Investors | 0.01% | Add +10.4% | 783,011 | $51.6M |
| Baron Capital (BAMCO) | 0.09% | Add +10.9% | 518,009 | $34.1M |
| Morgan Stanley | 0.00% | Add +11.9% | 517,513 | $34.1M |
| Goldman Sachs Group Inc. | 0.01% | Add +192.1% | 510,605 | $33.6M |
| Affinity Asset Advisors, LLC | 5.02% | Reduce -6.6% | 495,000 | $32.6M |
| American Century Companies Inc. | 0.02% | Add +694.3% | 431,466 | $28.4M |
| Pictet Asset Management Holding SA | 0.03% | Add +6882.6% | 383,136 | $25.2M |
| Schonfeld Strategic Advisors LLC | 0.17% | Add +48.5% | 346,728 | $22.8M |
| Northern Trust Corp. | 0.00% | Reduce -14.3% | 345,975 | $22.8M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -29.4% | 343,126 | $22.6M |
| Lord, Abbett & Co. LLC | 0.07% | Reduce -49.2% | 337,576 | $22.2M |
| Deutsche Bank AG | 0.01% | Reduce -4.2% | 329,364 | $21.7M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -5.3% | 319,272 | $21.0M |
| Voya Investment Management LLC | 0.02% | Reduce -0.5% | 275,676 | $18.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +0.9% | 267,111 | $17.6M |
| Bank of America Corp. | 0.00% | Add +60.3% | 262,355 | $17.3M |
| Wellington Management Group LLP | 0.00% | Add +1209.2% | 241,409 | $15.9M |
| Woodline Partners LP | 0.08% | Add +46.0% | 241,389 | $15.9M |
| First Turn Management, LLC | 2.64% | New | 215,223 | $14.2M |
| Stempoint Capital LP | 4.27% | Reduce -26.4% | 201,452 | $13.3M |
| Victory Capital Management Inc. | 0.01% | Add +12.1% | 199,741 | $13.2M |
| Citadel Advisors | 0.01% | Reduce -72.7% | 198,363 | $13.1M |
| Rock Springs Capital Management LP | 0.77% | New | 186,314 | $12.3M |
| Parkman Healthcare Partners LLC | 1.33% | Add +158.6% | 174,276 | $11.5M |
| Baker Bros. Advisors LP | 0.11% | New | 166,825 | $11.0M |
| UBS Group AG | 0.00% | Reduce -28.9% | 148,917 | $9.8M |
| Barclays PLC | 0.00% | Add +79.5% | 139,378 | $9.2M |
| Raymond James Financial Inc. | 0.00% | Add +4.1% | 134,047 | $8.8M |
| Bank of New York Mellon Corp | 0.00% | Reduce -8.0% | 132,069 | $8.7M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -15.8% | 128,065 | $8.4M |
| Soleus Capital Management, L.P. | 0.56% | Reduce -19.6% | 123,031 | $8.1M |
| Ameriprise Financial Inc. | 0.00% | Add +119.2% | 121,518 | $8.0M |
| Marshall Wace, LLP | 0.01% | Add +626.0% | 111,808 | $7.4M |
| Citigroup Inc. | 0.00% | Add +32.7% | 106,272 | $7.0M |
| TD Asset Management Inc | 0.01% | Reduce -38.5% | 103,460 | $6.8M |
| Samsara Biocapital, LLC | 1.37% | Reduce -25.0% | 101,457 | $6.7M |
| Great Point Partners LLC | 4.28% | Add +122.2% | 100,000 | $6.6M |
| Millennium Management | 0.01% | Add +85.2% | 94,562 | $6.2M |
| Nuveen, LLC | 0.00% | Reduce -21.8% | 87,418 | $5.8M |
| BNP Paribas Financial Markets | 0.00% | Add +70.1% | 75,429 | $5.0M |
| Decheng Capital LLC | 1.13% | Add +995.2% | 547,609 | $4.5M |
| Rhenman & Partners Asset Management AB | 0.56% | Add +54.6% | 67,250 | $4.4M |
| Voloridge Investment Management, LLC | 0.02% | Reduce -15.1% | 66,422 | $4.4M |
| Pier Capital, LLC | 0.64% | Reduce -6.4% | 63,634 | $4.2M |
| Susquehanna International Group, LLP | 0.01% | Add +2.1% | 62,933 | $4.1M |
| Swiss National Bank | 0.00% | No change | 62,900 | $4.1M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -30.7% | 60,155 | $4.0M |
| Schroder Investment Management Group | 0.00% | New | 60,000 | $4.0M |
| Rafferty Asset Management, LLC | 0.01% | Reduce -3.6% | 56,371 | $3.7M |
| Rhumbline Advisers | 0.00% | Reduce -13.5% | 55,140 | $3.6M |
| Balyasny Asset Management L.P. | 0.01% | New | 54,792 | $3.6M |
| Susquehanna Portfolio Strategies, LLC | 0.07% | New | 50,938 | $3.4M |
| Alliancebernstein L.P. | 0.00% | Reduce -6.1% | 48,155 | $3.2M |
| Edmond DE Rothschild Holding S.A. | 0.05% | No change | 45,480 | $3.0M |
| Trexquant Investment LP | 0.03% | New | 43,183 | $2.8M |
| Nicholas Investment Partners, LP | 0.27% | New | 41,067 | $2.7M |
| HighVista Strategies LLC | 0.86% | Reduce -24.8% | 35,714 | $2.4M |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 30,000 | $2.3M |
| Legal & General Group Plc | 0.00% | Reduce -16.3% | 34,812 | $2.3M |
| Tema ETFs LLC | 0.59% | Add +19.1% | 33,869 | $2.2M |
| NEOS Investment Management LLC | 0.03% | Add +19.1% | 33,869 | $2.2M |
| Invesco Ltd. | 0.00% | Add +4.8% | 31,681 | $2.1M |
| Wells Fargo & Company | 0.00% | Add +14.0% | 30,589 | $2.0M |
| California State Teachers Retirement System | 0.00% | Reduce -0.8% | 30,087 | $2.0M |
| Alps Advisors Inc. | 0.01% | New | 29,660 | $2.0M |
| Federated Hermes, Inc. | 0.00% | Reduce -41.7% | 26,935 | $1.8M |
| Caption Management, LLC | 0.16% | Reduce -60.1% | 26,756 | $1.8M |
| Atle Fund Management AB | 0.73% | Reduce -41.7% | 25,732 | $1.7M |
| Knott David M Jr | 0.77% | Add +71.3% | 25,700 | $1.7M |
| State of Wisconsin Investment Board | 0.00% | Reduce -32.9% | 25,550 | $1.7M |
| Congress Asset Management Co. | 0.01% | Add +0.4% | 25,209 | $1.7M |
| Sector Gamma As | 0.54% | Reduce -28.6% | 25,000 | $1.6M |
| Harbor Capital Advisors, Inc. | 0.07% | Add +8.3% | 24,721 | $1.6M |
| Tudor Investment Corporation | 0.01% | New | 23,197 | $1.5M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -20.6% | 22,818 | $1.5M |
| MetLife Investment Management, LLC | 0.01% | Reduce -14.3% | 21,949 | $1.4M |
| Erste Asset Management GmbH | 0.01% | No change | 21,000 | $1.4M |
| Dark Forest Capital Management LP | 0.05% | Reduce -71.8% | 20,033 | $1.3M |
| New York State Common Retirement Fund | 0.00% | Add +33.7% | 17,815 | $1.2M |
| Cinctive Capital Management LP | 0.06% | New | 17,539 | $1.2M |
| XTX Topco Ltd | 0.05% | New | 16,787 | $1.1M |
| Intech Investment Management LLC | 0.01% | Reduce -25.0% | 16,480 | $1.1M |
"% of holder's portfolio" is ACLX's weight in each manager's 13F, not the share of Arcellx Inc. the manager owns.