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, Q2 2024
Institutional positions in Arcellx, Inc. as of Jun 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
- 167
- −15 vs. Q1 2024
- Shares held
- 50.2M
- +3.25M (+6.9%) vs. Q1 2024
- Total value
- $2.77B
- −$494.3M (−15.1%) vs. Q1 2024
- New holders
- 22
- 80 more added
- Sold out
- 37
- 49 more reduced
1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 6,487,334 | $358.0M | 0.02% | +1,092,839+20.3% | Added |
| Perceptive Advisors LLC | 3,889,739 | $214.7M | 5.18% | −43,817−1.1% | Reduced |
| Paradigm Biocapital Advisors LP | 3,848,095 | $212.4M | 8.13% | +30,000+0.8% | Added |
| NEA Management Company, LLC | 3,745,262 | $206.7M | 15.55% | 00.0% | Unchanged |
| BlackRock Inc. | 3,516,364 | $194.1M | 0.00% | +450,296+14.7% | Added |
| Sr One Capital Management, LP | 2,346,630 | $129.5M | 40.55% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,296,195 | $126.7M | 0.00% | +67,339+3.0% | Added |
| Janus Henderson Group PLC | 1,902,618 | $105.0M | 0.06% | +380,309+25.0% | Added |
| State Street Corp | 1,755,664 | $96.9M | 0.00% | −129,454−6.9% | Reduced |
| Price T Rowe Associates Inc | 1,630,690 | $90.0M | 0.01% | +286,137+21.3% | Added |
| Ra Capital Management, L.P. | 1,604,014 | $88.5M | 1.17% | +1,604,014 | New |
| Cormorant Asset Management, LP | 1,525,000 | $84.2M | 4.90% | −255,000−14.3% | Reduced |
| Suvretta Capital Management, LLC | 1,516,254 | $83.7M | 3.42% | −46,100−3.0% | Reduced |
| T. Rowe Price Investment Management, Inc. | 1,173,791 | $64.8M | 0.04% | +190,929+19.4% | Added |
| Geode Capital Management, LLC | 935,186 | $51.6M | 0.00% | +96,717+11.5% | Added |
| Lord, Abbett & Co. LLC | 873,844 | $48.2M | 0.16% | −324,273−27.1% | Reduced |
| Vestal Point Capital, LP | 675,000 | $37.3M | 2.78% | +575,000+575.0% | Added |
| Morgan Stanley | 545,077 | $30.1M | 0.00% | −151,685−21.8% | Reduced |
| Great Point Partners LLC | 492,000 | $27.2M | 5.20% | +192,000+64.0% | Added |
| Affinity Asset Advisors, LLC | 460,000 | $25.4M | 4.00% | +160,000+53.3% | Added |
| Samsara BioCapital, LLC | 453,641 | $25.0M | 5.24% | 00.0% | Unchanged |
| Deutsche Bank AG | 446,530 | $24.6M | 0.01% | −1,253−0.3% | Reduced |
| Northern Trust Corp | 350,580 | $19.3M | 0.00% | −8,880−2.5% | Reduced |
| Bamco Inc | 342,760 | $18.9M | 0.05% | +93,767+37.7% | Added |
| Adage Capital Partners GP, L.L.C. | 323,468 | $17.9M | 0.03% | +51,459+18.9% | Added |
| Charles Schwab Investment Management Inc | 313,893 | $17.3M | 0.00% | +31,883+11.3% | Added |
| PFM Health Sciences, LP | 311,980 | $17.2M | 0.94% | +8,770+2.9% | Added |
| UBS Asset Management Americas Inc | 310,382 | $17.1M | 0.00% | +44,972+16.9% | Added |
| Bank of America Corp | 303,406 | $16.7M | 0.00% | −111,135−26.8% | Reduced |
| Victory Capital Management Inc | 283,872 | $15.7M | 0.02% | +48,006+20.4% | Added |
| StemPoint Capital LP | 280,709 | $15.5M | 4.56% | +140,442+100.1% | Added |
| Integral Health Asset Management, LLC | 275,000 | $15.2M | 1.51% | +20,000+7.8% | Added |
| JPMorgan Chase & Co | 261,359 | $14.4M | 0.00% | −290,391−52.6% | Reduced |
| Goldman Sachs Group Inc | 258,167 | $14.2M | 0.00% | −14,626−5.4% | Reduced |
| Russell Investments Group, Ltd. | 235,591 | $13.0M | 0.02% | +40,154+20.5% | Added |
| Voloridge Investment Management, LLC | 234,728 | $13.0M | 0.05% | −128,365−35.4% | Reduced |
| Voya Investment Management LLC | 218,287 | $12.0M | 0.01% | −164,271−42.9% | Reduced |
| Candriam Luxembourg S.C.A. | 217,008 | $12.0M | 0.07% | −3,000−1.4% | Reduced |
| Cutter Capital Management, LP | 187,000 | $10.3M | 3.15% | +80,000+74.8% | Added |
| Eagle Asset Management Inc | 190,604 | $10.2M | 0.05% | −33,930−15.1% | Reduced |
| Soleus Capital Management, L.P. | 170,741 | $9.42M | 0.83% | +20,741+13.8% | Added |
| Parkman Healthcare Partners LLC | 156,843 | $8.66M | 1.18% | +245+0.2% | Added |
| Bank of New York Mellon Corp | 147,198 | $8.12M | 0.00% | +26,134+21.6% | Added |
| Qube Research & Technologies Ltd | 144,636 | $7.98M | 0.01% | +43,450+42.9% | Added |
| TD Asset Management Inc | 123,118 | $6.79M | 0.01% | +33,200+36.9% | Added |
| Nuveen Asset Management, LLC | 121,911 | $6.73M | 0.00% | −64,872−34.7% | Reduced |
| Woodline Partners LP | 107,699 | $5.94M | 0.06% | +3,639+3.5% | Added |
| Man Group plc | 104,046 | $5.74M | 0.02% | +104,046 | New |
| Rafferty Asset Management, LLC | 85,812 | $4.74M | 0.02% | −40,939−32.3% | Reduced |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 74,100 | $4.09M | 0.15% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 73,332 | $4.05M | 0.00% | +26,134+55.4% | Added |
| Thrivent Financial for Lutherans | 64,025 | $3.53M | 0.01% | −3,515−5.2% | Reduced |
| UBS Group AG | 63,577 | $3.51M | 0.00% | −39,904−38.6% | Reduced |
| Swiss National Bank | 62,900 | $3.47M | 0.00% | +6,500+11.5% | Added |
| Rhumbline Advisers | 60,570 | $3.34M | 0.00% | +7,568+14.3% | Added |
| Superstring Capital Management LP | 59,133 | $3.26M | 4.11% | +59,133 | New |
| Franklin Resources Inc | 56,701 | $3.13M | 0.00% | +2,363+4.3% | Added |
| Alliancebernstein L.P. | 55,811 | $3.08M | 0.00% | +16,231+41.0% | Added |
| Twinbeech Capital LP | 53,585 | $2.96M | 0.06% | +23,141+76.0% | Added |
| Jane Street Group, LLC | 52,015 | $2.87M | 0.00% | +15,158+41.1% | Added |
| HighVista Strategies LLC | 51,040 | $2.82M | 1.03% | −21,190−29.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 47,817 | $2.64M | 0.01% | +47,817 | New |
| Acuta Capital Partners, LLC | 42,200 | $2.33M | 1.96% | +7,700+22.3% | Added |
| MYDA Advisors LLC | 42,000 | $2.32M | 0.71% | +7,000+20.0% | Added |
| Alps Advisors Inc | 41,722 | $2.30M | 0.02% | +4,487+12.1% | Added |
| Walleye Capital LLC | 41,144 | $2.27M | 0.02% | −53,064−56.3% | Reduced |
| State of Wisconsin Investment Board | 39,165 | $2.16M | 0.01% | +12,539+47.1% | Added |
| Susquehanna International Group, LLP | 39,153 | $2.16M | 0.00% | +2,578+7.0% | Added |
| DekaBank Deutsche Girozentrale | 30,000 | $2.11M | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 37,470 | $2.07M | 0.00% | −2,233−5.6% | Reduced |
| Principal Financial Group Inc | 37,352 | $2.06M | 0.00% | +517+1.4% | Added |
| Wexford Capital LP | 36,464 | $2.01M | 0.51% | +30,625+524.5% | Added |
| Legal & General Group Plc | 35,405 | $1.95M | 0.00% | +6,061+20.7% | Added |
| Algert Global LLC | 35,211 | $1.94M | 0.06% | +6,901+24.4% | Added |
| Two Sigma Investments, LP | 34,461 | $1.90M | 0.00% | −154,393−81.8% | Reduced |
| California State Teachers Retirement System | 32,064 | $1.77M | 0.00% | +2,516+8.5% | Added |
| Moody Aldrich Partners LLC | 27,337 | $1.51M | 0.29% | +6,777+33.0% | Added |
| Renaissance Technologies LLC | 27,072 | $1.49M | 0.00% | +27,072 | New |
| MetLife Investment Management | 24,981 | $1.38M | 0.01% | +5,387+27.5% | Added |
| Corebridge Financial, Inc. | 23,189 | $1.28M | 0.01% | +23,189 | New |
| Schonfeld Strategic Advisors LLC | 23,148 | $1.28M | 0.01% | −29,776−56.3% | Reduced |
| Congress Asset Management Co | 22,982 | $1.27M | 0.01% | −246−1.1% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 22,755 | $1.25M | 0.00% | +22,755 | New |
| HealthInvest Partners AB | 22,496 | $1.24M | 0.76% | +5,000+28.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 22,492 | $1.24M | 0.01% | −23,206−50.8% | Reduced |
| Citigroup Inc | 21,892 | $1.21M | 0.00% | −93,055−81.0% | Reduced |
| Invesco Ltd. | 21,498 | $1.19M | 0.00% | +1,275+6.3% | Added |
| Erste Asset Management GmbH | 21,000 | $1.14M | 0.02% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 20,362 | $1.12M | 0.09% | +1,568+8.3% | Added |
| Martingale Asset Management L P | 20,192 | $1.11M | 0.02% | −2,740−11.9% | Reduced |
| Wells Fargo & Company | 19,995 | $1.10M | 0.00% | +2,161+12.1% | Added |
| New York State Common Retirement Fund | 18,899 | $1.04M | 0.00% | +1,924+11.3% | Added |
| Wellington Management Group LLP | 18,200 | $1.00M | 0.00% | +2,503+15.9% | Added |
| First Trust Advisors LP | 16,894 | $932.4K | 0.00% | −23,383−58.1% | Reduced |
| AQR Capital Management LLC | 16,852 | $930.1K | 0.00% | +4,718+38.9% | Added |
| Allianz Asset Management GmbH | 16,800 | $927.2K | 0.00% | −3,100−15.6% | Reduced |
| Profund Advisors LLC | 16,096 | $888.3K | 0.03% | −3,937−19.7% | Reduced |
| Allspring Global Investments Holdings, LLC | 15,928 | $879.1K | 0.00% | +4,372+37.8% | Added |
| Y-Intercept (Hong Kong) Ltd | 15,859 | $875.3K | 0.05% | +6,439+68.4% | Added |
| Squarepoint Ops LLC | 15,829 | $873.6K | 0.00% | −105,182−86.9% | Reduced |