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, Q4 2022
Institutional positions in Arcellx, Inc. as of Dec 31, 2022. 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
- 125
- +52 vs. Q3 2022
- Shares held
- 41.9M
- +1.60M (+4.0%) vs. Q3 2022
- Total value
- $1.30B
- +$541.4M (+71.6%) vs. Q3 2022
- New holders
- 55
- 35 more added
- Sold out
- 3
- 29 more reduced
1 institution that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: 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, Q4 2022
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sr One Capital Management, LP | 5,500,007 | $170.4M | 62.20% | 00.0% | Unchanged |
| NEA Management Company, LLC | 4,745,262 | $147.0M | 8.26% | −2,005,002−29.7% | Reduced |
| Perceptive Advisors LLC | 2,598,305 | $80.5M | 2.32% | +132,900+5.4% | Added |
| Suvretta Capital Management, LLC | 2,350,333 | $72.8M | 3.06% | +100,800+4.5% | Added |
| BlackRock Inc. | 2,207,179 | $68.4M | 0.00% | +401,076+22.2% | Added |
| Cormorant Asset Management, LP | 2,075,000 | $64.3M | 4.32% | −974,173−31.9% | Reduced |
| Citadel Advisors LLC | 1,695,806 | $52.5M | 0.06% | −50,164−2.9% | Reduced |
| Janus Henderson Group PLC | 1,672,147 | $51.8M | 0.04% | +510,038+43.9% | Added |
| State Street Corp | 1,616,091 | $50.1M | 0.00% | +102,066+6.7% | Added |
| Vanguard Group Inc | 1,486,854 | $46.1M | 0.00% | +251,467+20.4% | Added |
| Novo Holdings A/S | 1,484,020 | $46.0M | 2.87% | −1,707,858−53.5% | Reduced |
| FMR LLC | 1,293,600 | $40.1M | 0.00% | +504,932+64.0% | Added |
| Soleus Capital Management, L.P. | 1,102,447 | $34.2M | 4.90% | −137,466−11.1% | Reduced |
| Samsara BioCapital, LLC | 957,451 | $29.7M | 6.39% | −106,384−10.0% | Reduced |
| Pictet Asset Management SA | 895,209 | $27.7M | 0.04% | +895,209 | New |
| Paradigm Biocapital Advisors LP | 882,101 | $27.3M | 3.21% | +882,101 | New |
| JPMorgan Chase & Co | 743,998 | $23.0M | 0.00% | +590,980+386.2% | Added |
| PFM Health Sciences, LP | 616,515 | $19.1M | 0.81% | +616,515 | New |
| Commodore Capital LP | 591,437 | $18.3M | 2.76% | +591,437 | New |
| Lord, Abbett & Co. LLC | 548,497 | $17.0M | 0.06% | −93,659−14.6% | Reduced |
| Geode Capital Management, LLC | 544,770 | $16.9M | 0.00% | +20,177+3.8% | Added |
| Adage Capital Partners GP, L.L.C. | 426,904 | $13.2M | 0.03% | −100,000−19.0% | Reduced |
| Candriam Luxembourg S.C.A. | 422,154 | $13.1M | 0.09% | +388,931+1,170.7% | Added |
| Northern Trust Corp | 276,978 | $8.58M | 0.00% | +21,622+8.5% | Added |
| Balyasny Asset Management LLC | 250,477 | $7.76M | 0.03% | −112,281−31.0% | Reduced |
| Affinity Asset Advisors, LLC | 240,143 | $7.44M | 3.41% | +30,005+14.3% | Added |
| Sphera Funds Management Ltd. | 237,488 | $7.36M | 2.31% | −96,592−28.9% | Reduced |
| Clough Capital Partners L P | 236,978 | $7.34M | 0.74% | −516,855−68.6% | Reduced |
| TimesSquare Capital Management, LLC | 218,910 | $6.78M | 0.10% | −162,100−42.5% | Reduced |
| Charles Schwab Investment Management Inc | 207,674 | $6.43M | 0.00% | +4,835+2.4% | Added |
| Pathway Capital Management, LP | 189,120 | $5.86M | 10.46% | +189,120 | New |
| California State Teachers Retirement System | 164,804 | $5.11M | 0.01% | +153,131+1,311.8% | Added |
| Two Sigma Investments, LP | 155,006 | $4.80M | 0.02% | +155,006 | New |
| Altium Capital Management LP | 150,000 | $4.65M | 2.38% | +35,000+30.4% | Added |
| Bank of New York Mellon Corp | 131,165 | $4.06M | 0.00% | +10,528+8.7% | Added |
| Caas Capital Management LP | 129,959 | $4.03M | 0.77% | +129,959 | New |
| EAM Investors, LLC | 128,525 | $3.98M | 0.82% | −761−0.6% | Reduced |
| Norges Bank | 123,600 | $3.83M | 0.00% | +123,600 | New |
| Morgan Stanley | 123,495 | $3.83M | 0.00% | +26,790+27.7% | Added |
| Goldman Sachs Group Inc | 122,117 | $3.78M | 0.00% | +33,938+38.5% | Added |
| Parkman Healthcare Partners LLC | 121,093 | $3.75M | 1.00% | −18,782−13.4% | Reduced |
| Voya Investment Management LLC | 112,841 | $3.50M | 0.00% | +58,220+106.6% | Added |
| Teacher Retirement System of Texas | 112,107 | $3.47M | 0.03% | +112,107 | New |
| Rafferty Asset Management, LLC | 110,218 | $3.41M | 0.03% | +17,765+19.2% | Added |
| Voloridge Investment Management, LLC | 100,678 | $3.12M | 0.02% | +100,678 | New |
| Price T Rowe Associates Inc | 93,469 | $2.90M | 0.00% | +93,469 | New |
| Nuveen Asset Management, LLC | 89,803 | $2.78M | 0.00% | −14,315−13.7% | Reduced |
| Bank of America Corp | 80,367 | $2.49M | 0.00% | −14,211−15.0% | Reduced |
| D. E. Shaw & Co., Inc. | 78,725 | $2.44M | 0.00% | +78,725 | New |
| EAM Global Investors LLC | 78,433 | $2.43M | 0.63% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 73,132 | $2.27M | 0.02% | +73,132 | New |
| Millennium Management LLC | 70,277 | $2.18M | 0.00% | +49,039+230.9% | Added |
| Barclays PLC | 69,322 | $2.15M | 0.00% | +10,285+17.4% | Added |
| Wellington Management Group LLP | 68,669 | $2.13M | 0.00% | +68,669 | New |
| STRS Ohio | 52,764 | $1.63M | 0.01% | +45,964+675.9% | Added |
| Renaissance Technologies LLC | 50,800 | $1.57M | 0.00% | +50,800 | New |
| Citigroup Inc | 49,328 | $1.53M | 0.00% | −34,934−41.5% | Reduced |
| Rhumbline Advisers | 42,989 | $1.33M | 0.00% | +5,066+13.4% | Added |
| Adams Street Partners LLC | 38,544 | $1.19M | 0.40% | +38,544 | New |
| MetLife Investment Management | 38,336 | $1.19M | 0.01% | +21,490+127.6% | Added |
| Swiss National Bank | 37,000 | $1.15M | 0.00% | +37,000 | New |
| Caxton Corp | 36,302 | $1.12M | 2.87% | −39,884−52.4% | Reduced |
| Partners Group Holding AG | 35,818 | $1.11M | 0.08% | +35,818 | New |
| Jump Financial, LLC | 33,002 | $1.02M | 0.05% | +33,002 | New |
| Two Sigma Advisers, LP | 31,300 | $969.7K | 0.00% | +31,300 | New |
| First Trust Advisors LP | 30,087 | $932.2K | 0.00% | +30,087 | New |
| Alps Advisors Inc | 29,726 | $920.9K | 0.01% | +29,726 | New |
| Alliancebernstein L.P. | 26,700 | $827.2K | 0.00% | +5,200+24.2% | Added |
| Utah Retirement Systems | 25,789 | $798.9K | 0.01% | +25,789 | New |
| Squarepoint Ops LLC | 25,270 | $782.9K | 0.01% | +25,270 | New |
| SEI Investments Co | 25,118 | $778.2K | 0.00% | −784−3.0% | Reduced |
| Liberty Mutual Group Asset Management Inc. | 25,073 | $776.8K | 0.21% | +25,073 | New |
| Russell Investments Group, Ltd. | 24,543 | $760.3K | 0.00% | +24,543 | New |
| Vident Investment Advisory, LLC | 23,540 | $729.3K | 0.03% | −12,267−34.3% | Reduced |
| New York State Common Retirement Fund | 22,046 | $683.0K | 0.00% | +4,462+25.4% | Added |
| Allianz Asset Management GmbH | 21,300 | $659.9K | 0.00% | +21,300 | New |
| Teachers Retirement System of the State of Kentucky | 19,971 | $619.0K | 0.01% | +19,971 | New |
| Putnam Investments LLC | 19,403 | $601.1K | 0.00% | −10−0.1% | Reduced |
| Fred Alger Management, LLC | 18,433 | $571.1K | 0.00% | +18,433 | New |
| Walleye Capital LLC | 16,270 | $504.0K | 0.01% | −56,733−77.7% | Reduced |
| DekaBank Deutsche Girozentrale | 16,000 | $502.0K | 0.00% | +16,000 | New |
| Hamilton Lane Advisors LLC | 16,055 | $497.0K | 0.18% | +16,055 | New |
| State of Wisconsin Investment Board | 15,312 | $474.4K | 0.00% | +15,312 | New |
| Mirae Asset Global Investments Co., Ltd. | 14,342 | $444.3K | 0.00% | +14,342 | New |
| Schonfeld Strategic Advisors LLC | 14,302 | $443.1K | 0.00% | +3,771+35.8% | Added |
| American International Group, Inc. | 13,989 | $433.4K | 0.00% | −51−0.4% | Reduced |
| UBS Asset Management Americas Inc | 13,700 | $424.4K | 0.00% | +13,700 | New |
| Deutsche Bank AG | 12,585 | $389.9K | 0.00% | +198+1.6% | Added |
| Susquehanna International Group, LLP | 11,763 | $364.4K | 0.00% | −21,726−64.9% | Reduced |
| Manufacturers Life Insurance Company, The | 11,676 | $361.7K | 0.00% | +11,676 | New |
| Credit Suisse AG | 11,630 | $360.3K | 0.00% | +11,465+6,948.5% | Added |
| HighTower Advisors, LLC | 11,572 | $359.0K | 0.00% | +72+0.6% | Added |
| SG Americas Securities, LLC | 10,756 | $333.0K | 0.00% | −8,361−43.7% | Reduced |
| Blue Owl Capital Holdings LP | 10,630 | $329.3K | 0.14% | +10,630 | New |
| Invesco Ltd. | 10,499 | $325.3K | 0.00% | +10,499 | New |
| Principal Financial Group Inc | 8,901 | $275.8K | 0.00% | +8,901 | New |
| MYDA Advisors LLC | 8,000 | $247.8K | 0.18% | −2,000−20.0% | Reduced |
| Jasper Ridge Partners, L.P. | 7,880 | $244.1K | 0.01% | +7,880 | New |
| Algert Global LLC | 7,600 | $235.4K | 0.01% | +7,600 | New |
| ProShare Advisors LLC | 7,431 | $230.2K | 0.00% | +7,431 | New |