Who Owns ARCELLX INC (ACLX)? -- Institutional Holders (2026-03-31)
308 institutions reported holding $6.64B of ARCELLX INC (ACLX) in SEC 13F filings for 2026-03-31. Largest institutional holders: GILEAD SCIENCES, INC. ($771.7M), Paradigm Biocapital Advisors LP ($663.0M), BlackRock, Inc. ($453.0M), NEA Management Company, LLC ($349.7M), Pentwater Capital Management LP ($329.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | GILEAD SCIENCES, INC. | $771.7M | 6.7M | Hold |
| 2 | Paradigm Biocapital Advisors LP | $663.0M | 5.8M | Added |
| 3 | BlackRock, Inc. | $453.0M | 3.9M | Added |
| 4 | NEA Management Company, LLC | $349.7M | 3.0M | Hold |
| 5 | Pentwater Capital Management LP | $329.5M | 2.9M | New |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $278.5M | 2.4M | New |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | $278.4M | 2.4M | New |
| 8 | SR One Capital Management, LP | $269.4M | 2.3M | Hold |
| 9 | FIL Ltd | $268.6M | 2.3M | New |
| 10 | HBK INVESTMENTS L P | $261.6M | 2.3M | New |
| 11 | T. Rowe Price Investment Management, Inc. | $259.0M | 2.3M | Trimmed |
| 12 | STATE STREET CORP | $192.4M | 1.7M | Trimmed |
| 13 | GLAZER CAPITAL, LLC | $173.1M | 1.5M | New |
| 14 | GOLDMAN SACHS GROUP INC | $156.7M | 1.4M | Added |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | $118.1M | 1.0M | Added |
| 16 | MORGAN STANLEY | $106.3M | 925,813 | Added |
| 17 | JPMORGAN CHASE & CO | $72.7M | 633,573 | Trimmed |
| 18 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $65.7M | 572,101 | Added |
| 19 | Davidson Kempner Capital Management LP | $64.3M | 559,644 | New |
| 20 | TIG Advisors, LLC | $62.2M | 541,378 | New |
| 21 | MILLENNIUM MANAGEMENT LLC | $57.7M | 502,846 | Added |
| 22 | Balyasny Asset Management L.P. | $55.1M | 479,763 | New |
| 23 | TUDOR INVESTMENT CORP ET AL | $53.6M | 467,188 | Added |
| 24 | BANK OF AMERICA CORP /DE/ | $51.9M | 452,333 | Added |
| 25 | Magnetar Financial LLC | $45.3M | 394,931 | New |
Source: SEC Form 13F filings · as of 2026-03-31