ArcellxACLX
13F holders, Q3 2024 (September 30)186holders +19
37new positions
18sold out
7famous investors
$83.55avg. 13F price*
At the end of Q3 2024, 186 institutions reported holding Arcellx Inc. (ACLX) in their 13F filings, up 19 from Q2 2024. 37 opened new positions and 18 sold out. The largest holders were FMR LLC ($541.1M), BlackRock, Inc. ($354.6M) and Paradigm Biocapital Advisors LP ($334.0M). 7 famous investors held it, including Stanley Druckenmiller (0.2% of Duquesne Family Office's portfolio), Ron Baron (0.1% of Baron Capital (BAMCO)'s portfolio) and Joel Greenblatt (0.0% of Gotham Asset Management's portfolio).
- Company
- Arcellx Inc.
- CUSIP
- 03940C100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 37 | $57.2M |
| Exits | 18 | $23.9M |
All 13F filers, Q2 2024 → Q3 2024: 2,510,393 shares bought and 3,998,633 shares sold, net −1,488,240 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 186 holders
| FMR LLC | 0.03% | Reduce -0.1% | 6,479,273 | $541.1M |
| BlackRock, Inc. | 0.01% | — | 4,246,692 | $354.6M |
| Paradigm Biocapital Advisors LP | 11.69% | Add +4.0% | 4,000,000 | $334.0M |
| Perceptive Advisors LLC | 6.97% | Reduce -0.0% | 3,888,669 | $324.7M |
| NEA Management Company, LLC | 17.04% | No change | 3,745,262 | $312.8M |
| Vanguard Group Inc. | 0.00% | Add +7.2% | 2,462,096 | $205.6M |
| SR One Capital Management, LP | 39.29% | No change | 2,346,630 | $196.0M |
| Janus Henderson Group PLC | 0.09% | Add +5.8% | 2,011,950 | $168.0M |
| T. Rowe Price Associates Inc. | 0.02% | Add +16.6% | 1,900,611 | $158.7M |
| Ra Capital Management, L.P. | 1.78% | Add +15.4% | 1,851,479 | $154.6M |
| State Street Corp. | 0.01% | Reduce -12.0% | 1,544,939 | $129.0M |
| Cormorant Asset Management, LP | 5.54% | Reduce -18.0% | 1,250,000 | $104.4M |
| Geode Capital Management, LLC | 0.01% | Add +4.3% | 974,967 | $81.4M |
| T. Rowe Price Investment Management, Inc. | 0.05% | Reduce -19.5% | 944,638 | $78.9M |
| Lord, Abbett & Co. LLC | 0.24% | Add +2.1% | 891,848 | $74.5M |
| Morgan Stanley | 0.00% | Add +38.9% | 757,152 | $63.2M |
| Montanova Capital, LLC | 2.07% | Reduce -54.5% | 689,950 | $57.6M |
| Vestal Point Capital, LP | 4.45% | No change | 675,000 | $56.4M |
| Deutsche Bank AG | 0.02% | Add +4.3% | 465,690 | $38.9M |
| Affinity Asset Advisors, LLC | 5.56% | Reduce -13.0% | 400,000 | $33.4M |
| Northern Trust Corp. | 0.01% | Add +9.6% | 384,108 | $32.1M |
| Samsara Biocapital, LLC | 5.68% | Reduce -22.0% | 353,641 | $29.5M |
| Baron Capital (BAMCO) | 0.08% | Add +0.0% | 342,832 | $28.6M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +4.5% | 328,093 | $27.4M |
| Russell Investments Group, Ltd. | 0.04% | Add +36.1% | 320,670 | $26.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +15.9% | 299,259 | $25.0M |
| Adage Capital Partners Gp, L.L.C. | 0.04% | Reduce -9.7% | 292,009 | $24.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -8.9% | 282,855 | $23.6M |
| Integral Health Asset Management, LLC | 2.70% | No change | 275,000 | $23.0M |
| JPMorgan Chase & Co. | 0.00% | Reduce -4.3% | 250,123 | $20.9M |
| Candriam S.C.A. | 0.12% | Add +10.8% | 240,363 | $20.1M |
| Victory Capital Management Inc. | 0.02% | Reduce -19.9% | 227,419 | $19.0M |
| Bank of America Corp. | 0.00% | Reduce -27.4% | 220,352 | $18.4M |
| First Turn Management, LLC | 2.83% | New | 214,298 | $17.9M |
| Voloridge Investment Management, LLC | 0.05% | Reduce -27.9% | 169,262 | $14.1M |
| Eagle Asset Management Inc. | 0.06% | Reduce -35.8% | 122,329 | $12.6M |
| TD Asset Management Inc | 0.01% | Add +21.4% | 149,518 | $12.4M |
| Voya Investment Management LLC | 0.01% | Reduce -32.8% | 146,648 | $12.2M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -0.8% | 120,896 | $10.1M |
| Dimensional Fund Advisors LP | 0.00% | New | 119,075 | $9.9M |
| Bank of New York Mellon Corp | 0.00% | Reduce -20.5% | 117,059 | $9.8M |
| Woodline Partners LP | 0.08% | Add +3.0% | 110,989 | $9.3M |
| Great Point Partners LLC | 2.52% | Reduce -79.7% | 100,000 | $8.4M |
| Susquehanna International Group, LLP | 0.01% | Add +144.8% | 95,868 | $8.0M |
| Soleus Capital Management, L.P. | 0.65% | Reduce -45.5% | 93,031 | $7.8M |
| Cutter Capital Management, LP | 2.22% | Reduce -51.9% | 89,863 | $7.5M |
| Barclays PLC | 0.00% | Add +127.7% | 85,322 | $7.1M |
| Manufacturers Life Insurance Company, The | 0.01% | Add +15.7% | 84,839 | $7.1M |
| Jacobs Levy Equity Management, Inc. | 0.03% | Add +67.2% | 79,936 | $6.7M |
| Duquesne Family Office | 0.22% | No change | 74,100 | $6.2M |
| Parkman Healthcare Partners LLC | 0.71% | Reduce -57.6% | 66,492 | $5.6M |
| Federated Hermes, Inc. | 0.01% | Add +1027.9% | 64,664 | $5.4M |
| Swiss National Bank | 0.00% | No change | 62,900 | $5.3M |
| Acuta Capital Partners, LLC | 4.20% | Add +47.2% | 62,100 | $5.2M |
| PFM Health Sciences, LP | 0.30% | Reduce -80.6% | 60,602 | $5.1M |
| Stempoint Capital LP | 1.50% | Reduce -78.6% | 60,076 | $5.0M |
| Franklin Resources Inc. | 0.00% | Add +0.1% | 56,753 | $4.9M |
| Rhumbline Advisers | 0.00% | Reduce -3.0% | 58,778 | $4.9M |
| Alliancebernstein L.P. | 0.00% | Add +2.9% | 57,431 | $4.8M |
| UBS Group AG | 0.00% | Reduce -9.8% | 57,363 | $4.8M |
| Rafferty Asset Management, LLC | 0.02% | Reduce -35.0% | 55,744 | $4.7M |
| HighVista Strategies LLC | 1.59% | Add +8.0% | 55,139 | $4.6M |
| Jane Street Group, LLC | 0.01% | Add +5.6% | 54,918 | $4.6M |
| Aberdeen Group plc | 0.01% | New | 50,796 | $4.2M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -65.3% | 50,251 | $4.2M |
| Thrivent Financial for Lutherans | 0.01% | Reduce -24.6% | 48,240 | $4.0M |
| Edmond DE Rothschild Holding S.A. | 0.06% | New | 45,480 | $3.8M |
| Citigroup Inc. | 0.00% | Add +97.1% | 43,154 | $3.6M |
| Alps Advisors Inc. | 0.02% | Reduce -1.8% | 40,988 | $3.4M |
| Legal & General Group Plc | 0.00% | Add +15.0% | 40,702 | $3.4M |
| Atle Fund Management AB | 1.58% | Add +78.8% | 40,230 | $3.4M |
| Caption Management, LLC | 0.34% | New | 37,580 | $3.1M |
| Nicholas Investment Partners, LP | 0.31% | New | 36,586 | $3.1M |
| First Trust Advisors LP | 0.00% | Add +112.3% | 35,857 | $3.0M |
| Wexford Capital LP | 0.67% | Reduce -8.2% | 33,464 | $2.8M |
| Rhenman & Partners Asset Management AB | 0.22% | New | 32,000 | $2.7M |
| California State Teachers Retirement System | 0.00% | Reduce -2.8% | 31,167 | $2.6M |
| State of Wisconsin Investment Board | 0.01% | Reduce -22.8% | 30,240 | $2.5M |
| Harbor Capital Advisors, Inc. | 0.10% | Add +37.0% | 27,896 | $2.3M |
| Dark Forest Capital Management LP | 0.29% | New | 27,603 | $2.3M |
| Moody Aldrich Partners LLC | 0.41% | Reduce -1.9% | 26,805 | $2.2M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +13.3% | 25,774 | $2.2M |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 30,000 | $2.1M |
| Two Sigma Investments, LP | 0.00% | Reduce -27.1% | 25,128 | $2.1M |
| MetLife Investment Management, LLC | 0.01% | No change | 24,981 | $2.1M |
| Corebridge Financial, Inc. | 0.01% | Reduce -0.6% | 23,047 | $1.9M |
| Invesco Ltd. | 0.00% | Add +6.7% | 22,940 | $1.9M |
| Congress Asset Management Co. | 0.01% | Reduce -1.1% | 22,735 | $1.9M |
| Martingale Asset Management L P | 0.04% | Add +4.9% | 21,184 | $1.8M |
| Decheng Capital LLC | 0.42% | Add +1699.2% | 21,177 | $1.8M |
| Wellington Management Group LLP | 0.00% | Add +15.2% | 20,968 | $1.8M |
| Erste Asset Management GmbH | 0.02% | No change | 21,000 | $1.7M |
| Wells Fargo & Company | 0.00% | Reduce -1.8% | 19,636 | $1.6M |
| New York State Common Retirement Fund | 0.00% | Reduce -0.4% | 18,828 | $1.6M |
| Citadel Advisors | 0.00% | New | 17,087 | $1.4M |
| AQR Capital Management | 0.00% | Reduce -1.9% | 16,539 | $1.4M |
| Gotham Asset Management | 0.01% | Add +37.6% | 13,001 | $1.1M |
| FORA Capital, LLC | 0.13% | New | 12,935 | $1.1M |
| Handelsbanken Fonder AB | 0.00% | Add +22.3% | 12,600 | $1.1M |
| HighTower Advisors, LLC | 0.00% | Add +0.3% | 12,485 | $1.0M |
"% of holder's portfolio" is ACLX's weight in each manager's 13F, not the share of Arcellx Inc. the manager owns.