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, Q3 2024
Institutional positions in Arcellx, Inc. as of Sep 30, 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
- 186
- +21 vs. Q2 2024
- Shares held
- 49.5M
- +2.76M (+5.9%) vs. Q2 2024
- Total value
- $4.13B
- +$1.56B (+60.3%) vs. Q2 2024
- New holders
- 39
- 68 more added
- Sold out
- 18
- 60 more reduced
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Corebridge Financial, Inc. | 23,047 | $1.92M | 0.01% | −142−0.6% | Reduced |
| MetLife Investment Management | 24,981 | $2.09M | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 25,128 | $2.10M | 0.00% | −9,333−27.1% | Reduced |
| DekaBank Deutsche Girozentrale | 30,000 | $2.11M | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 25,774 | $2.15M | 0.00% | +3,019+13.3% | Added |
| Moody Aldrich Partners LLC | 26,805 | $2.24M | 0.41% | −532−1.9% | Reduced |
| Dark Forest Capital Management LP | 27,603 | $2.31M | 0.29% | +27,603 | New |
| Harbor Capital Advisors, Inc. | 27,896 | $2.33M | 0.10% | +7,534+37.0% | Added |
| State of Wisconsin Investment Board | 30,240 | $2.53M | 0.01% | −8,925−22.8% | Reduced |
| California State Teachers Retirement System | 31,167 | $2.60M | 0.00% | −897−2.8% | Reduced |
| Rhenman & Partners Asset Management AB | 32,000 | $2.67M | 0.22% | +32,000 | New |
| Wexford Capital LP | 33,464 | $2.79M | 0.67% | −3,000−8.2% | Reduced |
| First Trust Advisors LP | 35,857 | $2.99M | 0.00% | +18,963+112.2% | Added |
| Nicholas Investment Partners, LP | 36,586 | $3.06M | 0.28% | +36,586 | New |
| Caption Management, LLC | 37,580 | $3.14M | 0.34% | +37,580 | New |
| HealthInvest Partners AB | 40,230 | $3.36M | 1.58% | +17,734+78.8% | Added |
| Legal & General Group Plc | 40,702 | $3.40M | 0.00% | +5,297+15.0% | Added |
| Alps Advisors Inc | 40,988 | $3.42M | 0.02% | −734−1.8% | Reduced |
| Citigroup Inc | 43,154 | $3.60M | 0.00% | +21,262+97.1% | Added |
| Edmond de Rothschild Holding S.A. | 45,480 | $3.80M | 0.06% | +45,480 | New |
| Thrivent Financial for Lutherans | 48,240 | $4.03M | 0.01% | −15,785−24.7% | Reduced |
| Qube Research & Technologies Ltd | 50,251 | $4.20M | 0.01% | −94,385−65.3% | Reduced |
| Standard Life Aberdeen plc | 50,796 | $4.24M | 0.01% | +50,796 | New |
| Jane Street Group, LLC | 54,918 | $4.59M | 0.01% | +2,903+5.6% | Added |
| HighVista Strategies LLC | 55,139 | $4.60M | 1.59% | +4,099+8.0% | Added |
| Rafferty Asset Management, LLC | 55,744 | $4.66M | 0.02% | −30,068−35.0% | Reduced |
| UBS Group AG | 57,363 | $4.79M | 0.00% | −6,214−9.8% | Reduced |
| Alliancebernstein L.P. | 57,431 | $4.80M | 0.00% | +1,620+2.9% | Added |
| Rhumbline Advisers | 58,778 | $4.91M | 0.00% | −1,792−3.0% | Reduced |
| Franklin Resources Inc | 56,753 | $4.93M | 0.00% | +52+0.1% | Added |
| StemPoint Capital LP | 60,076 | $5.02M | 1.50% | −220,633−78.6% | Reduced |
| PFM Health Sciences, LP | 60,602 | $5.06M | 0.29% | −251,378−80.6% | Reduced |
| Acuta Capital Partners, LLC | 62,100 | $5.19M | 4.20% | +19,900+47.2% | Added |
| Swiss National Bank | 62,900 | $5.25M | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 64,664 | $5.40M | 0.01% | +58,931+1,027.9% | Added |
| Parkman Healthcare Partners LLC | 66,492 | $5.55M | 0.71% | −90,351−57.6% | Reduced |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 74,100 | $6.19M | 0.22% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 79,936 | $6.68M | 0.03% | +32,119+67.2% | Added |
| Manufacturers Life Insurance Company, The | 84,839 | $7.08M | 0.01% | +11,507+15.7% | Added |
| Barclays PLC | 85,322 | $7.13M | 0.00% | +47,852+127.7% | Added |
| Cutter Capital Management, LP | 89,863 | $7.50M | 2.22% | −97,137−51.9% | Reduced |
| Soleus Capital Management, L.P. | 93,031 | $7.77M | 0.65% | −77,710−45.5% | Reduced |
| Susquehanna International Group, LLP | 95,868 | $8.01M | 0.01% | +56,715+144.9% | Added |
| Great Point Partners LLC | 100,000 | $8.35M | 2.52% | −392,000−79.7% | Reduced |
| Woodline Partners LP | 110,989 | $9.27M | 0.08% | +3,290+3.1% | Added |
| Bank of New York Mellon Corp | 117,059 | $9.78M | 0.00% | −30,139−20.5% | Reduced |
| Dimensional Fund Advisors LP | 119,075 | $9.94M | 0.00% | +119,075 | New |
| Nuveen Asset Management, LLC | 120,896 | $10.1M | 0.00% | −1,015−0.8% | Reduced |
| Voya Investment Management LLC | 146,648 | $12.2M | 0.01% | −71,639−32.8% | Reduced |
| TD Asset Management Inc | 149,518 | $12.4M | 0.01% | +26,400+21.4% | Added |
| Eagle Asset Management Inc | 122,329 | $12.6M | 0.06% | −68,275−35.8% | Reduced |
| Voloridge Investment Management, LLC | 169,262 | $14.1M | 0.05% | −65,466−27.9% | Reduced |
| First Turn Management, LLC | 214,298 | $17.9M | 2.83% | +214,298 | New |
| Bank of America Corp | 220,352 | $18.4M | 0.00% | −83,054−27.4% | Reduced |
| Victory Capital Management Inc | 227,419 | $19.0M | 0.02% | −56,453−19.9% | Reduced |
| Candriam Luxembourg S.C.A. | 240,363 | $20.1M | 0.12% | +23,355+10.8% | Added |
| JPMorgan Chase & Co | 250,123 | $20.9M | 0.00% | −11,236−4.3% | Reduced |
| Integral Health Asset Management, LLC | 275,000 | $23.0M | 2.70% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 282,855 | $23.6M | 0.01% | −27,527−8.9% | Reduced |
| Adage Capital Partners GP, L.L.C. | 292,009 | $24.4M | 0.04% | −31,459−9.7% | Reduced |
| Goldman Sachs Group Inc | 299,259 | $25.0M | 0.00% | +41,092+15.9% | Added |
| Russell Investments Group, Ltd. | 320,670 | $26.8M | 0.04% | +85,079+36.1% | Added |
| Charles Schwab Investment Management Inc | 328,093 | $27.4M | 0.01% | +14,200+4.5% | Added |
| Bamco Inc | 342,832 | $28.6M | 0.08% | +720.0% | Added |
| Samsara BioCapital, LLC | 353,641 | $29.5M | 5.68% | −100,000−22.0% | Reduced |
| Northern Trust Corp | 384,108 | $32.1M | 0.01% | +33,528+9.6% | Added |
| Affinity Asset Advisors, LLC | 400,000 | $33.4M | 5.18% | −60,000−13.0% | Reduced |
| Deutsche Bank AG | 465,690 | $38.9M | 0.02% | +19,160+4.3% | Added |
| Vestal Point Capital, LP | 675,000 | $56.4M | 4.45% | 00.0% | Unchanged |
| Suvretta Capital Management, LLC | 689,950 | $57.6M | 2.07% | −826,304−54.5% | Reduced |
| Morgan Stanley | 757,152 | $63.2M | 0.00% | +212,075+38.9% | Added |
| Lord, Abbett & Co. LLC | 891,848 | $74.5M | 0.24% | +18,004+2.1% | Added |
| T. Rowe Price Investment Management, Inc. | 944,638 | $78.9M | 0.05% | −229,153−19.5% | Reduced |
| Geode Capital Management, LLC | 974,967 | $81.4M | 0.01% | +39,781+4.3% | Added |
| Cormorant Asset Management, LP | 1,250,000 | $104.4M | 5.54% | −275,000−18.0% | Reduced |
| State Street Corp | 1,544,939 | $129.0M | 0.01% | −210,725−12.0% | Reduced |
| Ra Capital Management, L.P. | 1,851,479 | $154.6M | 1.78% | +247,465+15.4% | Added |
| Price T Rowe Associates Inc | 1,900,611 | $158.7M | 0.02% | +269,921+16.6% | Added |
| Janus Henderson Group PLC | 2,011,950 | $168.0M | 0.09% | +109,332+5.7% | Added |
| Sr One Capital Management, LP | 2,346,630 | $196.0M | 39.29% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,462,096 | $205.6M | 0.00% | +165,901+7.2% | Added |
| NEA Management Company, LLC | 3,745,262 | $312.8M | 17.04% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 3,888,669 | $324.7M | 6.97% | −1,0700.0% | Reduced |
| Paradigm Biocapital Advisors LP | 4,000,000 | $334.0M | 11.69% | +151,905+3.9% | Added |
| BlackRock, Inc. | 4,246,692 | $354.6M | 0.01% | +4,246,692 | New |
| FMR LLC | 6,479,273 | $541.1M | 0.03% | −8,061−0.1% | Reduced |
| Man Group plc | 0 | $0 | 0.00% | −104,046−100.0% | Sold out |
| Superstring Capital Management LP | 0 | $0 | 0.00% | −59,133−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −53,585−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −41,144−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −35,211−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −27,072−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −23,148−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −22,492−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −15,829−100.0% | Sold out |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −11,756−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −11,228−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −8,761−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −6,273−100.0% | Sold out |
| Clough Capital Partners L P | 0 | $0 | 0.00% | −4,800−100.0% | Sold out |