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 2024
Institutional positions in Arcellx, Inc. as of Dec 31, 2024. 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
- 211
- +27 vs. Q3 2024
- Shares held
- 59.2M
- +9.81M (+19.9%) vs. Q3 2024
- Total value
- $4.54B
- +$416.0M (+10.1%) vs. Q3 2024
- New holders
- 52
- 75 more added
- Sold out
- 25
- 55 more reduced
2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State Street Corp | 1,775,372 | $136.2M | 0.01% | +230,433+14.9% | Added |
| Price T Rowe Associates Inc | 2,121,322 | $162.7M | 0.02% | +220,711+11.6% | Added |
| Sr One Capital Management, LP | 2,346,630 | $180.0M | 43.88% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 2,787,327 | $213.8M | 2.84% | +935,848+50.5% | Added |
| Vanguard Group Inc | 3,330,092 | $255.4M | 0.00% | +867,996+35.3% | Added |
| Perceptive Advisors LLC | 3,478,888 | $266.8M | 7.43% | −409,781−10.5% | Reduced |
| NEA Management Company, LLC | 3,745,262 | $287.2M | 16.21% | 00.0% | Unchanged |
| BlackRock, Inc. | 3,854,021 | $295.6M | 0.01% | −392,671−9.2% | Reduced |
| Paradigm Biocapital Advisors LP | 4,371,601 | $335.3M | 11.66% | +371,601+9.3% | Added |
| Gilead Sciences, Inc. | 6,720,803 | $515.4M | 33.23% | +6,720,803 | New |
| FMR LLC | 7,956,633 | $610.2M | 0.04% | +1,477,360+22.8% | Added |
| Suvretta Capital Management, LLC | 0 | $0 | 0.00% | −689,950−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −292,009−100.0% | Sold out |
| Great Point Partners LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Cutter Capital Management, LP | 0 | $0 | 0.00% | −89,863−100.0% | Sold out |
| StemPoint Capital LP | 0 | $0 | 0.00% | −60,076−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −54,918−100.0% | Sold out |
| Standard Life Aberdeen plc | 0 | $0 | 0.00% | −50,796−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −40,988−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −37,580−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −12,035−100.0% | Sold out |
| MYDA Advisors LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −6,305−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −4,739−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −4,409−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −3,709−100.0% | Sold out |
| Glenmede Trust Co NA | 0 | $0 | 0.00% | −3,615−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −3,509−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −3,197−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −2,953−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −2,501−100.0% | Sold out |
| Torno Capital, LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −1,532−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Eagle Asset Management Inc | – | – | – | – | Not filed |
| Raymond James & Associates | – | – | – | – | Not filed |