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 2023
Institutional positions in Arcellx, Inc. as of Mar 31, 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
- 117
- −7 vs. Q4 2022
- Shares held
- 45.6M
- +3.72M (+8.9%) vs. Q4 2022
- Total value
- $1.40B
- +$106.4M (+8.2%) vs. Q4 2022
- New holders
- 15
- 46 more added
- Sold out
- 22
- 43 more reduced
1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2023
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sr One Capital Management, LP | 5,500,007 | $169.5M | 63.12% | 00.0% | Unchanged |
| NEA Management Company, LLC | 4,745,262 | $146.2M | 10.11% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 3,841,739 | $118.4M | 3.50% | +1,243,434+47.9% | Added |
| FMR LLC | 2,683,090 | $82.7M | 0.01% | +1,389,490+107.4% | Added |
| Suvretta Capital Management, LLC | 2,398,321 | $73.9M | 3.57% | +47,988+2.0% | Added |
| BlackRock Inc. | 2,222,357 | $68.5M | 0.00% | +15,178+0.7% | Added |
| State Street Corp | 1,874,456 | $57.8M | 0.00% | +258,365+16.0% | Added |
| Paradigm Biocapital Advisors LP | 1,757,779 | $54.2M | 5.13% | +875,678+99.3% | Added |
| Cormorant Asset Management, LP | 1,600,000 | $49.3M | 3.25% | −475,000−22.9% | Reduced |
| Janus Henderson Group PLC | 1,587,252 | $48.9M | 0.03% | −84,895−5.1% | Reduced |
| Citadel Advisors LLC | 1,514,896 | $46.7M | 0.05% | −180,910−10.7% | Reduced |
| Vanguard Group Inc | 1,426,956 | $44.0M | 0.00% | −59,898−4.0% | Reduced |
| Goldman Sachs Group Inc | 1,270,726 | $39.2M | 0.01% | +1,148,609+940.6% | Added |
| Soleus Capital Management, L.P. | 1,248,147 | $38.5M | 4.76% | +145,700+13.2% | Added |
| Novo Holdings A/S | 1,225,000 | $37.7M | 2.69% | −259,020−17.5% | Reduced |
| Lord, Abbett & Co. LLC | 1,072,207 | $33.0M | 0.12% | +523,710+95.5% | Added |
| Pictet Asset Management SA | 1,028,210 | $31.7M | 0.04% | +133,001+14.9% | Added |
| Samsara BioCapital, LLC | 909,579 | $28.0M | 5.79% | −47,872−5.0% | Reduced |
| Geode Capital Management, LLC | 561,604 | $17.3M | 0.00% | +16,834+3.1% | Added |
| JPMorgan Chase & Co | 549,197 | $16.9M | 0.00% | −194,801−26.2% | Reduced |
| PFM Health Sciences, LP | 525,816 | $16.2M | 0.75% | −90,699−14.7% | Reduced |
| Candriam Luxembourg S.C.A. | 447,154 | $12.7M | 0.09% | +25,000+5.9% | Added |
| Adage Capital Partners GP, L.L.C. | 376,904 | $11.6M | 0.03% | −50,000−11.7% | Reduced |
| Braidwell LP | 333,800 | $10.3M | 0.34% | +333,800 | New |
| Vivo Capital, LLC | 290,713 | $8.96M | 0.67% | +290,713 | New |
| Northern Trust Corp | 266,164 | $8.20M | 0.00% | −10,814−3.9% | Reduced |
| Great Point Partners LLC | 257,006 | $7.92M | 1.56% | +257,006 | New |
| Charles Schwab Investment Management Inc | 207,251 | $6.39M | 0.00% | −423−0.2% | Reduced |
| Affinity Asset Advisors, LLC | 202,834 | $6.25M | 2.40% | −37,309−15.5% | Reduced |
| Clough Capital Partners L P | 197,478 | $6.08M | 0.66% | −39,500−16.7% | Reduced |
| Bank of America Corp | 188,255 | $5.80M | 0.00% | +107,888+134.2% | Added |
| Sphera Funds Management Ltd. | 167,488 | $5.16M | 1.12% | −70,000−29.5% | Reduced |
| Walleye Capital LLC | 160,443 | $4.94M | 0.10% | +144,173+886.1% | Added |
| Voloridge Investment Management, LLC | 155,153 | $4.78M | 0.02% | +54,475+54.1% | Added |
| Altium Capital Management LP | 150,000 | $4.62M | 2.76% | 00.0% | Unchanged |
| Parkman Healthcare Partners LLC | 147,646 | $4.55M | 0.99% | +26,553+21.9% | Added |
| Rafferty Asset Management, LLC | 141,417 | $4.36M | 0.03% | +31,199+28.3% | Added |
| Two Sigma Investments, LP | 139,626 | $4.30M | 0.01% | −15,380−9.9% | Reduced |
| Bank of New York Mellon Corp | 125,021 | $3.85M | 0.00% | −6,144−4.7% | Reduced |
| Caas Capital Management LP | 124,959 | $3.85M | 1.25% | −5,000−3.8% | Reduced |
| Millennium Management LLC | 120,798 | $3.72M | 0.00% | +50,521+71.9% | Added |
| Citigroup Inc | 113,603 | $3.50M | 0.00% | +64,275+130.3% | Added |
| Wellington Management Group LLP | 112,463 | $3.46M | 0.00% | +43,794+63.8% | Added |
| Morgan Stanley | 108,398 | $3.34M | 0.00% | −15,097−12.2% | Reduced |
| EAM Investors, LLC | 104,301 | $3.21M | 0.63% | −24,224−18.8% | Reduced |
| Nuveen Asset Management, LLC | 98,489 | $3.03M | 0.00% | +8,686+9.7% | Added |
| Voya Investment Management LLC | 86,136 | $2.65M | 0.00% | −26,705−23.7% | Reduced |
| Barclays PLC | 59,114 | $1.82M | 0.00% | −10,208−14.7% | Reduced |
| Susquehanna International Group, LLP | 57,457 | $1.77M | 0.00% | +45,694+388.5% | Added |
| HighVista Strategies LLC | 54,280 | $1.67M | 1.36% | +54,280 | New |
| Putnam Investments LLC | 53,669 | $1.65M | 0.00% | +34,266+176.6% | Added |
| Two Sigma Advisers, LP | 53,600 | $1.65M | 0.00% | +22,300+71.2% | Added |
| Russell Investments Group, Ltd. | 50,132 | $1.54M | 0.00% | +25,589+104.3% | Added |
| Rhumbline Advisers | 46,514 | $1.43M | 0.00% | +3,525+8.2% | Added |
| Schonfeld Strategic Advisors LLC | 35,596 | $1.10M | 0.01% | +21,294+148.9% | Added |
| Swiss National Bank | 33,100 | $1.02M | 0.00% | −3,900−10.5% | Reduced |
| Wells Fargo & Company | 32,796 | $1.01M | 0.00% | +30,136+1,132.9% | Added |
| Kynam Capital Management, LP | 31,336 | $965.5K | 0.12% | +31,336 | New |
| Jump Financial, LLC | 30,151 | $929.0K | 0.04% | −2,851−8.6% | Reduced |
| Alps Advisors Inc | 28,891 | $890.1K | 0.01% | −835−2.8% | Reduced |
| Knott David M Jr | 28,000 | $863.0K | 0.36% | +28,000 | New |
| Cubist Systematic Strategies, LLC | 27,789 | $856.2K | 0.01% | −45,343−62.0% | Reduced |
| Alliancebernstein L.P. | 26,700 | $822.6K | 0.00% | 00.0% | Unchanged |
| Profund Advisors LLC | 26,289 | $810.0K | 0.05% | +26,289 | New |
| California State Teachers Retirement System | 24,479 | $754.2K | 0.00% | −140,325−85.1% | Reduced |
| Vident Investment Advisory, LLC | 22,755 | $701.1K | 0.02% | −785−3.3% | Reduced |
| Price T Rowe Associates Inc | 22,225 | $686.0K | 0.00% | −71,244−76.2% | Reduced |
| Allianz Asset Management GmbH | 21,300 | $656.3K | 0.00% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 19,971 | $615.0K | 0.01% | 00.0% | Unchanged |
| SEI Investments Co | 19,945 | $614.5K | 0.00% | −5,173−20.6% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 19,674 | $606.2K | 0.00% | +5,332+37.2% | Added |
| Algert Global LLC | 19,622 | $604.6K | 0.03% | +12,022+158.2% | Added |
| Deutsche Bank AG | 18,317 | $564.3K | 0.00% | +5,732+45.5% | Added |
| First Trust Advisors LP | 18,076 | $556.9K | 0.00% | −12,011−39.9% | Reduced |
| MetLife Investment Management | 16,846 | $519.0K | 0.00% | −21,490−56.1% | Reduced |
| Squarepoint Ops LLC | 16,741 | $515.8K | 0.00% | −8,529−33.8% | Reduced |
| UBS Asset Management Americas Inc | 16,600 | $511.4K | 0.00% | +2,900+21.2% | Added |
| Renaissance Technologies LLC | 16,500 | $508.0K | 0.00% | −34,300−67.5% | Reduced |
| Jane Street Group, LLC | 16,191 | $498.8K | 0.00% | +16,191 | New |
| DekaBank Deutsche Girozentrale | 16,000 | $488.0K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 15,055 | $463.8K | 0.00% | −6,991−31.7% | Reduced |
| Fred Alger Management, LLC | 14,374 | $442.9K | 0.00% | −4,059−22.0% | Reduced |
| American International Group, Inc. | 14,272 | $439.7K | 0.00% | +283+2.0% | Added |
| Invesco Ltd. | 13,841 | $426.4K | 0.00% | +3,342+31.8% | Added |
| State of Wisconsin Investment Board | 13,763 | $424.0K | 0.00% | −1,549−10.1% | Reduced |
| Credit Suisse AG | 12,894 | $397.3K | 0.00% | +1,264+10.9% | Added |
| Verition Fund Management LLC | 12,345 | $380.3K | 0.01% | +12,345 | New |
| HighTower Advisors, LLC | 12,226 | $376.0K | 0.00% | +654+5.7% | Added |
| Manufacturers Life Insurance Company, The | 12,156 | $374.5K | 0.00% | +480+4.1% | Added |
| SG Americas Securities, LLC | 11,962 | $369.0K | 0.00% | +1,206+11.2% | Added |
| Point72 Asset Management, L.P. | 11,641 | $358.6K | 0.00% | +11,641 | New |
| Federated Hermes, Inc. | 10,749 | $331.2K | 0.00% | +10,745+268,625.0% | Added |
| LMR Partners LLP | 10,208 | $314.5K | 0.01% | +10,208 | New |
| Principal Financial Group Inc | 9,934 | $306.1K | 0.00% | +1,033+11.6% | Added |
| Walleye Trading LLC | 8,992 | $277.0K | 0.01% | +8,992 | New |
| E Fund Management Co., Ltd. | 8,032 | $247.0K | 0.02% | +8,032 | New |
| MYDA Advisors LLC | 8,000 | $246.5K | 0.10% | 00.0% | Unchanged |
| Jasper Ridge Partners, L.P. | 7,880 | $242.8K | 0.01% | 00.0% | Unchanged |
| Legal & General Group Plc | 7,153 | $220.4K | 0.00% | +489+7.3% | Added |
| ProShare Advisors LLC | 6,520 | $200.9K | 0.00% | −911−12.3% | Reduced |