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 |
|---|---|---|---|---|---|
| Candriam Luxembourg S.C.A. | 422,154 | $13.1M | 0.09% | +388,931+1,170.7% | Added |
| Adage Capital Partners GP, L.L.C. | 426,904 | $13.2M | 0.03% | −100,000−19.0% | Reduced |
| Geode Capital Management, LLC | 544,770 | $16.9M | 0.00% | +20,177+3.8% | Added |
| Lord, Abbett & Co. LLC | 548,497 | $17.0M | 0.06% | −93,659−14.6% | Reduced |
| Commodore Capital LP | 591,437 | $18.3M | 2.76% | +591,437 | New |
| PFM Health Sciences, LP | 616,515 | $19.1M | 0.81% | +616,515 | New |
| JPMorgan Chase & Co | 743,998 | $23.0M | 0.00% | +590,980+386.2% | Added |
| Paradigm Biocapital Advisors LP | 882,101 | $27.3M | 3.21% | +882,101 | New |
| Pictet Asset Management SA | 895,209 | $27.7M | 0.04% | +895,209 | New |
| Samsara BioCapital, LLC | 957,451 | $29.7M | 6.39% | −106,384−10.0% | Reduced |
| Soleus Capital Management, L.P. | 1,102,447 | $34.2M | 4.90% | −137,466−11.1% | Reduced |
| FMR LLC | 1,293,600 | $40.1M | 0.00% | +504,932+64.0% | Added |
| Novo Holdings A/S | 1,484,020 | $46.0M | 2.87% | −1,707,858−53.5% | Reduced |
| Vanguard Group Inc | 1,486,854 | $46.1M | 0.00% | +251,467+20.4% | Added |
| State Street Corp | 1,616,091 | $50.1M | 0.00% | +102,066+6.7% | Added |
| Janus Henderson Group PLC | 1,672,147 | $51.8M | 0.04% | +510,038+43.9% | Added |
| Citadel Advisors LLC | 1,695,806 | $52.5M | 0.06% | −50,164−2.9% | Reduced |
| Cormorant Asset Management, LP | 2,075,000 | $64.3M | 4.32% | −974,173−31.9% | Reduced |
| BlackRock Inc. | 2,207,179 | $68.4M | 0.00% | +401,076+22.2% | Added |
| Suvretta Capital Management, LLC | 2,350,333 | $72.8M | 3.06% | +100,800+4.5% | Added |
| Perceptive Advisors LLC | 2,598,305 | $80.5M | 2.32% | +132,900+5.4% | Added |
| NEA Management Company, LLC | 4,745,262 | $147.0M | 8.26% | −2,005,002−29.7% | Reduced |
| Sr One Capital Management, LP | 5,500,007 | $170.4M | 62.20% | 00.0% | Unchanged |
| Coppell Advisory Solutions LLC | 106 | – | – | +106 | New |
| Coppell Advisory Solutions Corp. | 106 | – | – | +106 | New |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −132,667−100.0% | Sold out |
| Tri Locum Partners LP | 0 | $0 | 0.00% | −42,826−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −11,300−100.0% | Sold out |
| AJU IB Investment Co., Ltd. | – | – | – | – | Not filed |