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 |
|---|---|---|---|---|---|
| CWM, LLC | 11 | $0 | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 4 | $0 | 0.00% | +4 | New |
| Nisa Investment Advisors, LLC | 28 | $1.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 118 | $3.64K | 0.00% | +26+28.3% | Added |
| Daiwa Securities Group Inc. | 176 | $5.00K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 206 | $6.35K | 0.00% | +21+11.4% | Added |
| Lazard Asset Management LLC | 512 | $15.0K | 0.00% | +512 | New |
| China Universal Asset Management Co., Ltd. | 594 | $18.3K | 0.01% | +149+33.5% | Added |
| UBS Group AG | 992 | $30.6K | 0.00% | −1,449−59.4% | Reduced |
| Tower Research Capital LLC (TRC) | 1,464 | $45.0K | 0.00% | +1,005+219.0% | Added |
| Royal Bank of Canada | 1,700 | $52.0K | 0.00% | −1,653−49.3% | Reduced |
| Metropolitan Life Insurance Co | 1,717 | $52.9K | 0.00% | −193−10.1% | Reduced |
| Ameritas Investment Partners, Inc. | 2,319 | $71.4K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,028 | $93.3K | 0.00% | +127+4.4% | Added |
| Virtus ETF Advisers LLC | 3,068 | $94.5K | 0.05% | −1,177−27.7% | Reduced |
| Amalgamated Bank | 3,098 | $95.0K | 0.00% | −722−18.9% | Reduced |
| STRS Ohio | 6,200 | $191.0K | 0.00% | −46,564−88.2% | Reduced |
| ProShare Advisors LLC | 6,520 | $200.9K | 0.00% | −911−12.3% | Reduced |
| Legal & General Group Plc | 7,153 | $220.4K | 0.00% | +489+7.3% | Added |
| Jasper Ridge Partners, L.P. | 7,880 | $242.8K | 0.01% | 00.0% | Unchanged |
| MYDA Advisors LLC | 8,000 | $246.5K | 0.10% | 00.0% | Unchanged |
| E Fund Management Co., Ltd. | 8,032 | $247.0K | 0.02% | +8,032 | New |
| Walleye Trading LLC | 8,992 | $277.0K | 0.01% | +8,992 | New |
| Principal Financial Group Inc | 9,934 | $306.1K | 0.00% | +1,033+11.6% | Added |
| LMR Partners LLP | 10,208 | $314.5K | 0.01% | +10,208 | New |
| Federated Hermes, Inc. | 10,749 | $331.2K | 0.00% | +10,745+268,625.0% | Added |
| Point72 Asset Management, L.P. | 11,641 | $358.6K | 0.00% | +11,641 | New |
| SG Americas Securities, LLC | 11,962 | $369.0K | 0.00% | +1,206+11.2% | Added |
| Manufacturers Life Insurance Company, The | 12,156 | $374.5K | 0.00% | +480+4.1% | Added |
| HighTower Advisors, LLC | 12,226 | $376.0K | 0.00% | +654+5.7% | Added |
| Verition Fund Management LLC | 12,345 | $380.3K | 0.01% | +12,345 | New |
| Credit Suisse AG | 12,894 | $397.3K | 0.00% | +1,264+10.9% | Added |
| State of Wisconsin Investment Board | 13,763 | $424.0K | 0.00% | −1,549−10.1% | Reduced |
| Invesco Ltd. | 13,841 | $426.4K | 0.00% | +3,342+31.8% | Added |
| American International Group, Inc. | 14,272 | $439.7K | 0.00% | +283+2.0% | Added |
| Fred Alger Management, LLC | 14,374 | $442.9K | 0.00% | −4,059−22.0% | Reduced |
| New York State Common Retirement Fund | 15,055 | $463.8K | 0.00% | −6,991−31.7% | Reduced |
| DekaBank Deutsche Girozentrale | 16,000 | $488.0K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 16,191 | $498.8K | 0.00% | +16,191 | New |
| Renaissance Technologies LLC | 16,500 | $508.0K | 0.00% | −34,300−67.5% | Reduced |
| UBS Asset Management Americas Inc | 16,600 | $511.4K | 0.00% | +2,900+21.2% | Added |
| Squarepoint Ops LLC | 16,741 | $515.8K | 0.00% | −8,529−33.8% | Reduced |
| MetLife Investment Management | 16,846 | $519.0K | 0.00% | −21,490−56.1% | Reduced |
| First Trust Advisors LP | 18,076 | $556.9K | 0.00% | −12,011−39.9% | Reduced |
| Deutsche Bank AG | 18,317 | $564.3K | 0.00% | +5,732+45.5% | Added |
| Algert Global LLC | 19,622 | $604.6K | 0.03% | +12,022+158.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 19,674 | $606.2K | 0.00% | +5,332+37.2% | Added |
| SEI Investments Co | 19,945 | $614.5K | 0.00% | −5,173−20.6% | Reduced |
| Teachers Retirement System of the State of Kentucky | 19,971 | $615.0K | 0.01% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 21,300 | $656.3K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 22,225 | $686.0K | 0.00% | −71,244−76.2% | Reduced |
| Vident Investment Advisory, LLC | 22,755 | $701.1K | 0.02% | −785−3.3% | Reduced |
| California State Teachers Retirement System | 24,479 | $754.2K | 0.00% | −140,325−85.1% | Reduced |
| Profund Advisors LLC | 26,289 | $810.0K | 0.05% | +26,289 | New |
| Alliancebernstein L.P. | 26,700 | $822.6K | 0.00% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 27,789 | $856.2K | 0.01% | −45,343−62.0% | Reduced |
| Knott David M Jr | 28,000 | $863.0K | 0.36% | +28,000 | New |
| Alps Advisors Inc | 28,891 | $890.1K | 0.01% | −835−2.8% | Reduced |
| Jump Financial, LLC | 30,151 | $929.0K | 0.04% | −2,851−8.6% | Reduced |
| Kynam Capital Management, LP | 31,336 | $965.5K | 0.12% | +31,336 | New |
| Wells Fargo & Company | 32,796 | $1.01M | 0.00% | +30,136+1,132.9% | Added |
| Swiss National Bank | 33,100 | $1.02M | 0.00% | −3,900−10.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 35,596 | $1.10M | 0.01% | +21,294+148.9% | Added |
| Rhumbline Advisers | 46,514 | $1.43M | 0.00% | +3,525+8.2% | Added |
| Russell Investments Group, Ltd. | 50,132 | $1.54M | 0.00% | +25,589+104.3% | Added |
| Two Sigma Advisers, LP | 53,600 | $1.65M | 0.00% | +22,300+71.2% | Added |
| Putnam Investments LLC | 53,669 | $1.65M | 0.00% | +34,266+176.6% | Added |
| HighVista Strategies LLC | 54,280 | $1.67M | 1.36% | +54,280 | New |
| Susquehanna International Group, LLP | 57,457 | $1.77M | 0.00% | +45,694+388.5% | Added |
| Barclays PLC | 59,114 | $1.82M | 0.00% | −10,208−14.7% | Reduced |
| Voya Investment Management LLC | 86,136 | $2.65M | 0.00% | −26,705−23.7% | Reduced |
| Nuveen Asset Management, LLC | 98,489 | $3.03M | 0.00% | +8,686+9.7% | Added |
| EAM Investors, LLC | 104,301 | $3.21M | 0.63% | −24,224−18.8% | Reduced |
| Morgan Stanley | 108,398 | $3.34M | 0.00% | −15,097−12.2% | Reduced |
| Wellington Management Group LLP | 112,463 | $3.46M | 0.00% | +43,794+63.8% | Added |
| Citigroup Inc | 113,603 | $3.50M | 0.00% | +64,275+130.3% | Added |
| Millennium Management LLC | 120,798 | $3.72M | 0.00% | +50,521+71.9% | Added |
| Caas Capital Management LP | 124,959 | $3.85M | 1.25% | −5,000−3.8% | Reduced |
| Bank of New York Mellon Corp | 125,021 | $3.85M | 0.00% | −6,144−4.7% | Reduced |
| Two Sigma Investments, LP | 139,626 | $4.30M | 0.01% | −15,380−9.9% | Reduced |
| Rafferty Asset Management, LLC | 141,417 | $4.36M | 0.03% | +31,199+28.3% | Added |
| Parkman Healthcare Partners LLC | 147,646 | $4.55M | 0.99% | +26,553+21.9% | Added |
| Altium Capital Management LP | 150,000 | $4.62M | 2.76% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 155,153 | $4.78M | 0.02% | +54,475+54.1% | Added |
| Walleye Capital LLC | 160,443 | $4.94M | 0.10% | +144,173+886.1% | Added |
| Sphera Funds Management Ltd. | 167,488 | $5.16M | 1.12% | −70,000−29.5% | Reduced |
| Bank of America Corp | 188,255 | $5.80M | 0.00% | +107,888+134.2% | Added |
| Clough Capital Partners L P | 197,478 | $6.08M | 0.66% | −39,500−16.7% | Reduced |
| Affinity Asset Advisors, LLC | 202,834 | $6.25M | 2.40% | −37,309−15.5% | Reduced |
| Charles Schwab Investment Management Inc | 207,251 | $6.39M | 0.00% | −423−0.2% | Reduced |
| Great Point Partners LLC | 257,006 | $7.92M | 1.56% | +257,006 | New |
| Northern Trust Corp | 266,164 | $8.20M | 0.00% | −10,814−3.9% | Reduced |
| Vivo Capital, LLC | 290,713 | $8.96M | 0.67% | +290,713 | New |
| Braidwell LP | 333,800 | $10.3M | 0.34% | +333,800 | New |
| Adage Capital Partners GP, L.L.C. | 376,904 | $11.6M | 0.03% | −50,000−11.7% | Reduced |
| Candriam Luxembourg S.C.A. | 447,154 | $12.7M | 0.09% | +25,000+5.9% | Added |
| PFM Health Sciences, LP | 525,816 | $16.2M | 0.75% | −90,699−14.7% | Reduced |
| JPMorgan Chase & Co | 549,197 | $16.9M | 0.00% | −194,801−26.2% | Reduced |
| Geode Capital Management, LLC | 561,604 | $17.3M | 0.00% | +16,834+3.1% | Added |
| Samsara BioCapital, LLC | 909,579 | $28.0M | 5.79% | −47,872−5.0% | Reduced |