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, Q3 2025
Institutional positions in Arcellx, Inc. as of Sep 30, 2025. 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
- 209
- +9 vs. Q2 2025
- Shares held
- 63.1M
- +1.70M (+2.8%) vs. Q2 2025
- Total value
- $5.18B
- +$1.17B (+29.1%) vs. Q2 2025
- New holders
- 30
- 59 more added
- Sold out
- 21
- 81 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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, Q3 2025
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Massmutual Trust Co FSB | 1 | $82 | 0.00% | +1 | New |
| TFC Financial Management | 1 | $83 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 4 | $328 | 0.00% | +4 | Added |
| Global Retirement Partners, LLC | 5 | $411 | 0.00% | −1−16.7% | Reduced |
| TD Capital Management LLC | 5 | $411 | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 7 | $575 | 0.00% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 7 | $575 | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 7 | $575 | 0.00% | +7 | New |
| Rockefeller Capital Management L.P. | 8 | $657 | 0.00% | +8 | New |
| Assetmark, Inc | 13 | $1.07K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 14 | $1.15K | 0.00% | +14 | New |
| Bare Financial Services, Inc | 17 | $1.40K | 0.00% | +7+70.0% | Added |
| Essential Partners LLC | 18 | $1.48K | 0.00% | +18 | New |
| Marquette Asset Management, LLC | 22 | $1.81K | 0.00% | +22 | New |
| Bessemer Group Inc | 30 | $2.00K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 26 | $2.13K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 26 | $2.13K | 0.00% | +17+188.9% | Added |
| Allworth Financial LP | 28 | $2.30K | 0.00% | −38−57.6% | Reduced |
| Parkside Financial Bank & Trust | 29 | $2.38K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 32 | $2.63K | 0.00% | 00.0% | Unchanged |
| J.Safra Asset Management Corp | 40 | $3.28K | 0.00% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 45 | $3.69K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 55 | $4.52K | 0.00% | −5−8.3% | Reduced |
| Parallel Advisors, LLC | 55 | $4.52K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 59 | $4.82K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 65 | $5.34K | 0.00% | +57+712.5% | Added |
| Smartleaf Asset Management LLC | 76 | $6.01K | 0.00% | +55+261.9% | Added |
| Sterling Capital Management LLC | 83 | $6.81K | 0.00% | −5−5.7% | Reduced |
| Larson Financial Group LLC | 86 | $7.06K | 0.00% | +29+50.9% | Added |
| Advisor Group Holdings, Inc. | 97 | $7.90K | 0.00% | +13+15.5% | Added |
| SRS Capital Advisors, Inc. | 109 | $8.95K | 0.00% | +58+113.7% | Added |
| EverSource Wealth Advisors, LLC | 146 | $12.0K | 0.00% | +42+40.4% | Added |
| Daiwa Securities Group Inc. | 174 | $14.0K | 0.00% | −24−12.1% | Reduced |
| Quest Partners LLC | 240 | $19.7K | 0.00% | −129−35.0% | Reduced |
| Versant Capital Management, Inc | 243 | $19.9K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 258 | $21.2K | 0.00% | +128+98.5% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 262 | $22.0K | 0.00% | −39−13.0% | Reduced |
| MAI Capital Management | 318 | $26.1K | 0.00% | +318 | New |
| CWM, LLC | 345 | $28.0K | 0.00% | +251+267.0% | Added |
| GAMMA Investing LLC | 370 | $30.4K | 0.00% | +67+22.1% | Added |
| Covestor Ltd | 389 | $32.0K | 0.02% | −247−38.8% | Reduced |
| State of Wyoming | 435 | $35.7K | 0.00% | +10+2.4% | Added |
| The PNC Financial Services Group, Inc. | 460 | $37.8K | 0.00% | −291−38.7% | Reduced |
| Ramirez Asset Management, Inc. | 500 | $41.0K | 0.01% | +500 | New |
| Nisa Investment Advisors, LLC | 525 | $43.1K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 564 | $46.3K | 0.00% | −26,371−97.9% | Reduced |
| Group One Trading, L.P. | 581 | $47.7K | 0.00% | +581 | New |
| Wexford Capital LP | 686 | $56.3K | 0.02% | −1,734−71.7% | Reduced |
| Abich Financial Wealth Management LLC | 750 | $61.6K | 0.02% | +750 | New |
| Tower Research Capital LLC (TRC) | 996 | $81.8K | 0.00% | −5,147−83.8% | Reduced |
| KBC Group NV | 1,056 | $87.0K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 1,109 | $91.0K | 0.00% | −140−11.2% | Reduced |
| GF Fund Management Co. Ltd. | 1,193 | $97.9K | 0.00% | −191−13.8% | Reduced |
| Avanza Fonder AB | 1,219 | $100.1K | 0.00% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 1,711 | $140.5K | 0.04% | +297+21.0% | Added |
| US Bancorp | 1,797 | $147.5K | 0.00% | +654+57.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 2,144 | $176.0K | 0.00% | +15+0.7% | Added |
| Principal Financial Group Inc | 2,622 | $215.3K | 0.00% | +2,622 | New |
| Xponance, Inc. | 2,694 | $221.2K | 0.00% | +2,694 | New |
| Ameritas Investment Partners, Inc. | 2,861 | $234.9K | 0.01% | −877−23.5% | Reduced |
| SEI Investments Co | 2,895 | $237.7K | 0.00% | +2,895 | New |
| Advisory Alpha, LLC | 3,000 | $246.7K | 0.01% | +3,000 | New |
| Virginia Retirement Systems Et Al | 3,100 | $254.5K | 0.00% | +3,100 | New |
| Public Employees Retirement Association of Colorado | 3,217 | $264.0K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 3,362 | $276.0K | 0.01% | −93−2.7% | Reduced |
| Quarry LP | 3,376 | $277.2K | 0.07% | +675+25.0% | Added |
| Integrated Wealth Concepts LLC | 3,423 | $281.0K | 0.00% | +283+9.0% | Added |
| Mercer Global Advisors Inc | 3,452 | $283.4K | 0.00% | +3,452 | New |
| CIBC Bancorp USA Inc. | 3,650 | $299.7K | 0.00% | +3,650 | New |
| Brevan Howard Capital Management LP | 3,805 | $312.4K | 0.00% | −10,631−73.6% | Reduced |
| JustInvest LLC | 3,805 | $312.4K | 0.00% | +377+11.0% | Added |
| Farallon Capital Management, L.L.C. | 4,000 | $328.4K | 0.00% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 4,048 | $332.3K | 0.00% | +4,048 | New |
| Aquatic Capital Management LLC | 5,232 | $429.5K | 0.01% | +5,232 | New |
| KLP Kapitalforvaltning AS | 5,500 | $451.6K | 0.00% | −1,100−16.7% | Reduced |
| Teacher Retirement System of Texas | 6,797 | $558.0K | 0.00% | −2,086−23.5% | Reduced |
| Allianz Asset Management GmbH | 6,900 | $566.5K | 0.00% | −2,300−25.0% | Reduced |
| Mariner, LLC | 7,315 | $600.6K | 0.00% | +1,846+33.8% | Added |
| Susquehanna International Group, LLP | 7,344 | $602.9K | 0.00% | −55,589−88.3% | Reduced |
| Legato Capital Management LLC | 7,675 | $630.1K | 0.07% | +2,216+40.6% | Added |
| ProShare Advisors LLC | 7,831 | $642.9K | 0.00% | −1,734−18.1% | Reduced |
| High Net Worth Advisory Group LLC | 8,000 | $656.8K | 0.16% | 00.0% | Unchanged |
| Advisors Asset Management, Inc. | 8,075 | $663.0K | 0.01% | −724−8.2% | Reduced |
| SG Americas Securities, LLC | 8,115 | $666.0K | 0.00% | +2,800+52.7% | Added |
| Arizona State Retirement System | 8,122 | $666.8K | 0.00% | −1,456−15.2% | Reduced |
| Guggenheim Capital LLC | 8,172 | $670.9K | 0.00% | −10.0% | Reduced |
| ExodusPoint Capital Management, LP | 9,446 | $775.5K | 0.01% | +9,446 | New |
| Police & Firemen's Retirement System of New Jersey | 9,644 | $791.8K | 0.01% | +1,183+14.0% | Added |
| China Universal Asset Management Co., Ltd. | 9,721 | $798.1K | 0.07% | −1,347−12.2% | Reduced |
| Prudential Financial Inc | 9,770 | $802.1K | 0.00% | +4,870+99.4% | Added |
| Gotham Asset Management, LLC | 9,842 | $808.0K | 0.00% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 9,910 | $813.6K | 0.00% | +1,365+16.0% | Added |
| LPL Financial LLC | 10,021 | $822.7K | 0.00% | +75+0.8% | Added |
| Creative Planning | 10,162 | $834.3K | 0.00% | +1,670+19.7% | Added |
| Jefferies Financial Group Inc. | 10,500 | $862.0K | 0.01% | −2,500−19.2% | Reduced |
| Lighthouse Investment Partners, LLC | 10,500 | $862.0K | 0.03% | +10,500 | New |
| Martingale Asset Management L P | 10,515 | $863.3K | 0.02% | 00.0% | Unchanged |
| Profund Advisors LLC | 10,785 | $885.4K | 0.03% | −1,102−9.3% | Reduced |
| State Board of Administration of Florida Retirement System | 10,850 | $890.8K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 11,117 | $912.7K | 0.00% | 00.0% | Unchanged |