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 2023
Institutional positions in Arcellx, Inc. as of Jun 30, 2023. 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
- 138
- +21 vs. Q1 2023
- Shares held
- 48.1M
- +2.48M (+5.4%) vs. Q1 2023
- Total value
- $1.52B
- +$116.2M (+8.3%) vs. Q1 2023
- New holders
- 32
- 68 more added
- Sold out
- 11
- 31 more reduced
Compare with Q1 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, Q2 2023
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 4,690,998 | $148.3M | 0.01% | +2,007,908+74.8% | Added |
| Perceptive Advisors LLC | 4,016,397 | $127.0M | 3.69% | +174,658+4.5% | Added |
| Sr One Capital Management, LP | 3,946,630 | $124.8M | 53.81% | −1,553,377−28.2% | Reduced |
| NEA Management Company, LLC | 3,745,262 | $118.4M | 9.04% | −1,000,000−21.1% | Reduced |
| Suvretta Capital Management, LLC | 2,848,167 | $90.1M | 4.82% | +449,846+18.8% | Added |
| BlackRock Inc. | 2,602,485 | $82.3M | 0.00% | +380,128+17.1% | Added |
| Paradigm Biocapital Advisors LP | 2,347,000 | $74.2M | 6.01% | +589,221+33.5% | Added |
| Cormorant Asset Management, LP | 2,000,000 | $63.2M | 3.60% | +400,000+25.0% | Added |
| Vanguard Group Inc | 1,994,587 | $63.1M | 0.00% | +567,631+39.8% | Added |
| State Street Corp | 1,931,765 | $61.1M | 0.00% | +57,309+3.1% | Added |
| Janus Henderson Group PLC | 1,754,247 | $55.5M | 0.03% | +166,995+10.5% | Added |
| Lord, Abbett & Co. LLC | 1,265,372 | $40.0M | 0.14% | +193,165+18.0% | Added |
| Price T Rowe Associates Inc | 1,057,781 | $33.4M | 0.00% | +1,035,556+4,659.4% | Added |
| Goldman Sachs Group Inc | 1,018,914 | $32.2M | 0.01% | −251,812−19.8% | Reduced |
| Soleus Capital Management, L.P. | 1,001,999 | $31.7M | 3.52% | −246,148−19.7% | Reduced |
| Novo Holdings A/S | 1,000,000 | $31.6M | 2.44% | −225,000−18.4% | Reduced |
| Geode Capital Management, LLC | 685,228 | $21.7M | 0.00% | +123,624+22.0% | Added |
| Samsara BioCapital, LLC | 613,921 | $19.4M | 3.41% | −295,658−32.5% | Reduced |
| Pictet Asset Management SA | 556,408 | $17.6M | 0.02% | −471,802−45.9% | Reduced |
| Logos Global Management LP | 500,000 | $15.8M | 2.18% | +500,000 | New |
| Vivo Capital, LLC | 433,785 | $13.7M | 1.65% | +143,072+49.2% | Added |
| Candriam Luxembourg S.C.A. | 398,020 | $12.6M | 0.09% | −49,134−11.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 372,904 | $11.8M | 0.03% | −4,000−1.1% | Reduced |
| Citadel Advisors LLC | 361,075 | $11.4M | 0.01% | −1,153,821−76.2% | Reduced |
| Northern Trust Corp | 359,550 | $11.4M | 0.00% | +93,386+35.1% | Added |
| Renaissance Technologies LLC | 344,667 | $10.9M | 0.02% | +328,167+1,988.9% | Added |
| JPMorgan Chase & Co | 327,438 | $10.4M | 0.00% | −221,759−40.4% | Reduced |
| Two Sigma Investments, LP | 326,093 | $10.3M | 0.03% | +186,467+133.5% | Added |
| Morgan Stanley | 279,111 | $8.83M | 0.00% | +170,713+157.5% | Added |
| Voloridge Investment Management, LLC | 274,571 | $8.68M | 0.04% | +119,418+77.0% | Added |
| PFM Health Sciences, LP | 255,832 | $8.09M | 0.33% | −269,984−51.3% | Reduced |
| Millennium Management LLC | 242,135 | $7.66M | 0.01% | +121,337+100.4% | Added |
| Charles Schwab Investment Management Inc | 240,938 | $7.62M | 0.00% | +33,687+16.3% | Added |
| Nuveen Asset Management, LLC | 237,066 | $7.50M | 0.00% | +138,577+140.7% | Added |
| Affinity Asset Advisors, LLC | 226,275 | $7.15M | 2.82% | +23,441+11.6% | Added |
| Walleye Capital LLC | 217,634 | $6.88M | 0.12% | +57,191+35.6% | Added |
| Parkman Healthcare Partners LLC | 195,260 | $6.17M | 1.07% | +47,614+32.2% | Added |
| Federated Hermes, Inc. | 164,671 | $5.21M | 0.01% | +153,922+1,432.0% | Added |
| Deutsche Bank AG | 146,011 | $4.62M | 0.00% | +127,694+697.1% | Added |
| Rafferty Asset Management, LLC | 144,096 | $4.56M | 0.03% | +2,679+1.9% | Added |
| Bank of New York Mellon Corp | 130,524 | $4.13M | 0.00% | +5,503+4.4% | Added |
| Two Sigma Advisers, LP | 129,800 | $4.10M | 0.01% | +76,200+142.2% | Added |
| UBS Group AG | 121,507 | $3.84M | 0.00% | +120,515+12,148.7% | Added |
| Russell Investments Group, Ltd. | 116,342 | $3.68M | 0.01% | +66,210+132.1% | Added |
| Qube Research & Technologies Ltd | 110,744 | $3.50M | 0.01% | +110,744 | New |
| Cubist Systematic Strategies, LLC | 108,589 | $3.43M | 0.04% | +80,800+290.8% | Added |
| Clough Capital Partners L P | 105,862 | $3.35M | 0.34% | −91,616−46.4% | Reduced |
| Bank of America Corp | 90,705 | $2.87M | 0.00% | −97,550−51.8% | Reduced |
| California State Teachers Retirement System | 86,013 | $2.72M | 0.00% | +61,534+251.4% | Added |
| Sphera Funds Management Ltd. | 77,488 | $2.45M | 0.53% | −90,000−53.7% | Reduced |
| Barclays PLC | 75,596 | $2.39M | 0.00% | +16,482+27.9% | Added |
| Jane Street Group, LLC | 73,930 | $2.34M | 0.00% | +57,739+356.6% | Added |
| Citigroup Inc | 63,398 | $2.00M | 0.00% | −50,205−44.2% | Reduced |
| HighVista Strategies LLC | 62,869 | $1.99M | 0.91% | +8,589+15.8% | Added |
| Voya Investment Management LLC | 56,983 | $1.80M | 0.00% | −29,153−33.8% | Reduced |
| Wellington Management Group LLP | 56,202 | $1.78M | 0.00% | −56,261−50.0% | Reduced |
| Schroder Investment Management Group | 55,977 | $1.77M | 0.00% | +55,977 | New |
| EAM Investors, LLC | 55,714 | $1.76M | 0.33% | −48,587−46.6% | Reduced |
| Swiss National Bank | 52,100 | $1.65M | 0.00% | +19,000+57.4% | Added |
| Rhumbline Advisers | 50,429 | $1.59M | 0.00% | +3,915+8.4% | Added |
| Schonfeld Strategic Advisors LLC | 49,258 | $1.56M | 0.01% | +13,662+38.4% | Added |
| Manufacturers Life Insurance Company, The | 42,868 | $1.36M | 0.00% | +30,712+252.6% | Added |
| AQR Capital Management LLC | 42,260 | $1.34M | 0.00% | +42,260 | New |
| Victory Capital Management Inc | 41,705 | $1.32M | 0.00% | +41,705 | New |
| Putnam Investments LLC | 41,612 | $1.32M | 0.00% | −12,057−22.5% | Reduced |
| Wells Fargo & Company | 40,526 | $1.28M | 0.00% | +7,730+23.6% | Added |
| First Trust Advisors LP | 40,301 | $1.27M | 0.00% | +22,225+123.0% | Added |
| Knott David M Jr | 40,000 | $1.26M | 0.54% | +12,000+42.9% | Added |
| Bamco Inc | 40,000 | $1.26M | 0.00% | +40,000 | New |
| Squarepoint Ops LLC | 39,295 | $1.24M | 0.01% | +22,554+134.7% | Added |
| Great Point Partners LLC | 37,500 | $1.19M | 0.24% | −219,506−85.4% | Reduced |
| Alliancebernstein L.P. | 36,210 | $1.14M | 0.00% | +9,510+35.6% | Added |
| Alps Advisors Inc | 35,278 | $1.12M | 0.01% | +6,387+22.1% | Added |
| Credit Suisse AG | 34,953 | $1.11M | 0.00% | +22,059+171.1% | Added |
| Twinbeech Capital LP | 32,668 | $1.03M | 0.02% | +32,668 | New |
| TD Asset Management Inc | 28,800 | $910.7K | 0.00% | +28,800 | New |
| Jump Financial, LLC | 26,796 | $847.3K | 0.03% | −3,355−11.1% | Reduced |
| Profund Advisors LLC | 26,345 | $833.0K | 0.04% | +56+0.2% | Added |
| Jefferies Financial Group Inc. | 25,476 | $805.6K | 0.02% | +25,476 | New |
| Congress Asset Management Co | 25,045 | $791.9K | 0.01% | +25,045 | New |
| State of Wisconsin Investment Board | 24,718 | $781.6K | 0.00% | +10,955+79.6% | Added |
| Legal & General Group Plc | 24,637 | $779.0K | 0.00% | +17,484+244.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 23,353 | $736.2K | 0.00% | +3,679+18.7% | Added |
| Adams Street Partners LLC | 22,924 | $724.9K | 0.19% | +22,924 | New |
| Aigen Investment Management, LP | 20,564 | $650.2K | 0.10% | +20,564 | New |
| Martingale Asset Management L P | 20,228 | $639.6K | 0.01% | +20,228 | New |
| D. E. Shaw & Co., Inc. | 20,210 | $639.0K | 0.00% | +20,210 | New |
| MetLife Investment Management | 20,184 | $638.2K | 0.00% | +3,338+19.8% | Added |
| Teachers Retirement System of the State of Kentucky | 18,443 | $583.0K | 0.01% | −1,528−7.7% | Reduced |
| American International Group, Inc. | 18,268 | $577.6K | 0.00% | +3,996+28.0% | Added |
| Invesco Ltd. | 17,768 | $561.8K | 0.00% | +3,927+28.4% | Added |
| UBS Asset Management Americas Inc | 16,600 | $511.4K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 16,102 | $509.1K | 0.00% | −41,355−72.0% | Reduced |
| DekaBank Deutsche Girozentrale | 16,000 | $499.0K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 15,326 | $484.6K | 0.00% | +271+1.8% | Added |
| Walleye Trading LLC | 14,425 | $456.1K | 0.02% | +5,433+60.4% | Added |
| Utah Retirement Systems | 12,895 | $407.7K | 0.01% | +12,895 | New |
| Graham Capital Management, L.P. | 12,514 | $395.7K | 0.01% | +12,514 | New |
| HighTower Advisors, LLC | 12,290 | $388.0K | 0.00% | +64+0.5% | Added |
| Globeflex Capital L P | 12,200 | $385.8K | 0.04% | +12,200 | New |