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, Q1 2024
Institutional positions in Arcellx, Inc. as of Mar 31, 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
- 183
- +28 vs. Q4 2023
- Shares held
- 47.0M
- +337.3K (+0.7%) vs. Q4 2023
- Total value
- $3.27B
- +$678.4M (+26.2%) vs. Q4 2023
- New holders
- 42
- 69 more added
- Sold out
- 14
- 58 more reduced
1 institution that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: 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, Q1 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State of Wisconsin Investment Board | 26,626 | $1.85M | 0.00% | −4,755−15.2% | Reduced |
| Algert Global LLC | 28,310 | $1.97M | 0.08% | +19,120+208.1% | Added |
| Legal & General Group Plc | 29,344 | $2.04M | 0.00% | −418−1.4% | Reduced |
| California State Teachers Retirement System | 29,548 | $2.06M | 0.00% | −2,610−8.1% | Reduced |
| DekaBank Deutsche Girozentrale | 30,000 | $2.11M | 0.00% | 00.0% | Unchanged |
| Twinbeech Capital LP | 30,444 | $2.12M | 0.04% | −33,020−52.0% | Reduced |
| Acuta Capital Partners, LLC | 34,500 | $2.40M | 1.56% | −42,500−55.2% | Reduced |
| MYDA Advisors LLC | 35,000 | $2.43M | 0.85% | −5,000−12.5% | Reduced |
| Susquehanna International Group, LLP | 36,575 | $2.54M | 0.00% | +13,494+58.5% | Added |
| Principal Financial Group Inc | 36,835 | $2.56M | 0.00% | +26,197+246.3% | Added |
| Jane Street Group, LLC | 36,857 | $2.56M | 0.00% | −47,534−56.3% | Reduced |
| Alps Advisors Inc | 37,235 | $2.59M | 0.02% | +4,833+14.9% | Added |
| Credit Suisse AG | 38,739 | $2.69M | 0.00% | +1,556+4.2% | Added |
| Alliancebernstein L.P. | 39,580 | $2.75M | 0.00% | +2,580+7.0% | Added |
| Barclays PLC | 39,703 | $2.76M | 0.00% | −89,723−69.3% | Reduced |
| First Trust Advisors LP | 40,277 | $2.80M | 0.00% | +14,772+57.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 45,698 | $3.18M | 0.01% | +8,716+23.6% | Added |
| Manufacturers Life Insurance Company, The | 47,198 | $3.28M | 0.00% | +1,747+3.8% | Added |
| Two Sigma Advisers, LP | 48,400 | $3.37M | 0.01% | +40,600+520.5% | Added |
| Schonfeld Strategic Advisors LLC | 52,924 | $3.68M | 0.03% | +12,414+30.6% | Added |
| Rhumbline Advisers | 53,002 | $3.69M | 0.00% | +1,567+3.0% | Added |
| Franklin Resources Inc | 54,338 | $3.78M | 0.00% | +36,095+197.9% | Added |
| Swiss National Bank | 56,400 | $3.92M | 0.00% | −800−1.4% | Reduced |
| Cubist Systematic Strategies, LLC | 57,248 | $3.98M | 0.05% | −69,810−54.9% | Reduced |
| Millennium Management LLC | 61,210 | $4.26M | 0.00% | +3,836+6.7% | Added |
| EAM Investors, LLC | 66,052 | $4.59M | 0.72% | +1,000+1.5% | Added |
| Thrivent Financial for Lutherans | 67,540 | $4.70M | 0.01% | +67,540 | New |
| HighVista Strategies LLC | 72,230 | $5.02M | 1.79% | 00.0% | Unchanged |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 74,100 | $5.15M | 0.14% | +74,100 | New |
| Citadel Advisors LLC | 77,730 | $5.41M | 0.01% | +54,534+235.1% | Added |
| TD Asset Management Inc | 89,918 | $6.25M | 0.01% | +8,600+10.6% | Added |
| Walleye Capital LLC | 94,208 | $6.55M | 0.07% | −24,127−20.4% | Reduced |
| Vestal Point Capital, LP | 100,000 | $6.96M | 0.58% | +40,000+66.7% | Added |
| Qube Research & Technologies Ltd | 101,186 | $7.04M | 0.01% | +87,261+626.6% | Added |
| UBS Group AG | 103,481 | $7.20M | 0.00% | +6,436+6.6% | Added |
| Woodline Partners LP | 104,060 | $7.24M | 0.07% | 00.0% | Unchanged |
| Cutter Capital Management, LP | 107,000 | $7.44M | 2.87% | +107,000 | New |
| Citigroup Inc | 114,947 | $7.99M | 0.01% | +62,616+119.7% | Added |
| Squarepoint Ops LLC | 121,011 | $8.42M | 0.03% | −8,145−6.3% | Reduced |
| Bank of New York Mellon Corp | 121,064 | $8.42M | 0.00% | −10,870−8.2% | Reduced |
| Rafferty Asset Management, LLC | 126,751 | $8.82M | 0.03% | +14,799+13.2% | Added |
| StemPoint Capital LP | 140,267 | $9.76M | 2.61% | −173,337−55.3% | Reduced |
| Soleus Capital Management, L.P. | 150,000 | $10.4M | 0.92% | −9,000−5.7% | Reduced |
| Parkman Healthcare Partners LLC | 156,598 | $10.9M | 1.34% | −11,664−6.9% | Reduced |
| Nuveen Asset Management, LLC | 186,783 | $13.0M | 0.00% | −92,843−33.2% | Reduced |
| Two Sigma Investments, LP | 188,854 | $13.1M | 0.03% | +43,580+30.0% | Added |
| Russell Investments Group, Ltd. | 195,437 | $13.6M | 0.02% | +5,895+3.1% | Added |
| Eagle Asset Management Inc | 224,534 | $15.0M | 0.08% | +224,534 | New |
| Candriam Luxembourg S.C.A. | 220,008 | $15.3M | 0.10% | −62,005−22.0% | Reduced |
| Federated Hermes, Inc. | 231,661 | $16.1M | 0.04% | +17,062+8.0% | Added |
| Victory Capital Management Inc | 235,866 | $16.4M | 0.02% | +80,214+51.5% | Added |
| Bamco Inc | 248,993 | $17.3M | 0.05% | +185,493+292.1% | Added |
| Integral Health Asset Management, LLC | 255,000 | $17.7M | 1.74% | +95,000+59.4% | Added |
| UBS Asset Management Americas Inc | 265,410 | $18.5M | 0.01% | +135,274+103.9% | Added |
| Adage Capital Partners GP, L.L.C. | 272,009 | $18.9M | 0.04% | −60,895−18.3% | Reduced |
| Goldman Sachs Group Inc | 272,793 | $19.0M | 0.00% | −82,900−23.3% | Reduced |
| Charles Schwab Investment Management Inc | 282,010 | $19.6M | 0.00% | +17,832+6.7% | Added |
| Affinity Asset Advisors, LLC | 300,000 | $20.9M | 3.39% | −40,000−11.8% | Reduced |
| Great Point Partners LLC | 300,000 | $20.9M | 3.25% | +251,736+521.6% | Added |
| PFM Health Sciences, LP | 303,210 | $21.1M | 1.05% | −31,988−9.5% | Reduced |
| Northern Trust Corp | 359,460 | $25.0M | 0.00% | −3,961−1.1% | Reduced |
| Voloridge Investment Management, LLC | 363,093 | $25.3M | 0.09% | +127,333+54.0% | Added |
| Voya Investment Management LLC | 382,558 | $26.6M | 0.03% | +301,086+369.6% | Added |
| Bank of America Corp | 414,541 | $28.8M | 0.00% | +220,254+113.4% | Added |
| Deutsche Bank AG | 447,783 | $31.1M | 0.01% | +308,596+221.7% | Added |
| Samsara BioCapital, LLC | 453,641 | $31.6M | 4.88% | −6,800−1.5% | Reduced |
| JPMorgan Chase & Co | 551,750 | $38.4M | 0.00% | −50,163−8.3% | Reduced |
| Morgan Stanley | 696,762 | $48.5M | 0.00% | +23,477+3.5% | Added |
| Geode Capital Management, LLC | 838,469 | $58.3M | 0.01% | +53,067+6.8% | Added |
| T. Rowe Price Investment Management, Inc. | 982,862 | $68.4M | 0.04% | +60,463+6.6% | Added |
| Lord, Abbett & Co. LLC | 1,198,117 | $83.3M | 0.27% | +1,550+0.1% | Added |
| Price T Rowe Associates Inc | 1,344,553 | $93.5M | 0.01% | +84,373+6.7% | Added |
| Janus Henderson Group PLC | 1,522,309 | $105.9M | 0.06% | −15,901−1.0% | Reduced |
| Suvretta Capital Management, LLC | 1,562,354 | $108.7M | 4.58% | −873,620−35.9% | Reduced |
| Cormorant Asset Management, LP | 1,780,000 | $123.8M | 5.45% | +80,000+4.7% | Added |
| State Street Corp | 1,885,118 | $131.1M | 0.01% | +111,279+6.3% | Added |
| Vanguard Group Inc | 2,228,856 | $155.0M | 0.00% | +167,037+8.1% | Added |
| Sr One Capital Management, LP | 2,346,630 | $163.2M | 44.83% | −800,000−25.4% | Reduced |
| BlackRock Inc. | 3,066,068 | $213.2M | 0.00% | +47,530+1.6% | Added |
| NEA Management Company, LLC | 3,745,262 | $260.5M | 16.17% | 00.0% | Unchanged |
| Paradigm Biocapital Advisors LP | 3,818,095 | $265.5M | 9.35% | +159,471+4.4% | Added |
| Perceptive Advisors LLC | 3,933,556 | $273.6M | 4.82% | −611,253−13.4% | Reduced |
| FMR LLC | 5,394,495 | $375.2M | 0.03% | +1,015,326+23.2% | Added |
| Deep Track Capital, LP | 0 | $0 | 0.00% | −725,145−100.0% | Sold out |
| Caas Capital Management LP | 0 | $0 | 0.00% | −124,959−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −61,100−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −17,903−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −12,725−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −10,850−100.0% | Sold out |
| Advisory Research Inc | 0 | $0 | 0.00% | −9,530−100.0% | Sold out |
| Globeflex Capital L P | 0 | $0 | 0.00% | −8,732−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −6,791−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −6,521−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −5,481−100.0% | Sold out |
| Oracle Alpha Inc. | 0 | $0 | 0.00% | −3,674−100.0% | Sold out |
| Gradient Investments LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Able Wealth Management LLC | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| Putnam Investments LLC | – | – | – | – | Not filed |