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, Q2 2023
Institutional positions in Arcellx, Inc. as of Jun 30, 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
- 138
- +21 vs. Q1 2023
- Shares held
- 48.1M
- +2.48M (+5.4%) vs. Q1 2023
- Total value
- $1.52B
- +$116.2M (+8.3%) vs. Q1 2023
- New holders
- 32
- 68 more added
- Sold out
- 11
- 31 more reduced
Compare with Q1 2023: 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, Q2 2023
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Parkman Healthcare Partners LLC | 195,260 | $6.17M | 1.07% | +47,614+32.2% | Added |
| Walleye Capital LLC | 217,634 | $6.88M | 0.12% | +57,191+35.6% | Added |
| Affinity Asset Advisors, LLC | 226,275 | $7.15M | 2.82% | +23,441+11.6% | Added |
| Nuveen Asset Management, LLC | 237,066 | $7.50M | 0.00% | +138,577+140.7% | Added |
| Charles Schwab Investment Management Inc | 240,938 | $7.62M | 0.00% | +33,687+16.3% | Added |
| Millennium Management LLC | 242,135 | $7.66M | 0.01% | +121,337+100.4% | Added |
| PFM Health Sciences, LP | 255,832 | $8.09M | 0.33% | −269,984−51.3% | Reduced |
| Voloridge Investment Management, LLC | 274,571 | $8.68M | 0.04% | +119,418+77.0% | Added |
| Morgan Stanley | 279,111 | $8.83M | 0.00% | +170,713+157.5% | Added |
| Two Sigma Investments, LP | 326,093 | $10.3M | 0.03% | +186,467+133.5% | Added |
| JPMorgan Chase & Co | 327,438 | $10.4M | 0.00% | −221,759−40.4% | Reduced |
| Renaissance Technologies LLC | 344,667 | $10.9M | 0.02% | +328,167+1,988.9% | Added |
| Northern Trust Corp | 359,550 | $11.4M | 0.00% | +93,386+35.1% | Added |
| Citadel Advisors LLC | 361,075 | $11.4M | 0.01% | −1,153,821−76.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 372,904 | $11.8M | 0.03% | −4,000−1.1% | Reduced |
| Candriam Luxembourg S.C.A. | 398,020 | $12.6M | 0.09% | −49,134−11.0% | Reduced |
| Vivo Capital, LLC | 433,785 | $13.7M | 1.65% | +143,072+49.2% | Added |
| Logos Global Management LP | 500,000 | $15.8M | 2.18% | +500,000 | New |
| Pictet Asset Management SA | 556,408 | $17.6M | 0.02% | −471,802−45.9% | Reduced |
| Samsara BioCapital, LLC | 613,921 | $19.4M | 3.41% | −295,658−32.5% | Reduced |
| Geode Capital Management, LLC | 685,228 | $21.7M | 0.00% | +123,624+22.0% | Added |
| Novo Holdings A/S | 1,000,000 | $31.6M | 2.44% | −225,000−18.4% | Reduced |
| Soleus Capital Management, L.P. | 1,001,999 | $31.7M | 3.52% | −246,148−19.7% | Reduced |
| Goldman Sachs Group Inc | 1,018,914 | $32.2M | 0.01% | −251,812−19.8% | Reduced |
| Price T Rowe Associates Inc | 1,057,781 | $33.4M | 0.00% | +1,035,556+4,659.4% | Added |
| Lord, Abbett & Co. LLC | 1,265,372 | $40.0M | 0.14% | +193,165+18.0% | Added |
| Janus Henderson Group PLC | 1,754,247 | $55.5M | 0.03% | +166,995+10.5% | Added |
| State Street Corp | 1,931,765 | $61.1M | 0.00% | +57,309+3.1% | Added |
| Vanguard Group Inc | 1,994,587 | $63.1M | 0.00% | +567,631+39.8% | Added |
| Cormorant Asset Management, LP | 2,000,000 | $63.2M | 3.60% | +400,000+25.0% | Added |
| Paradigm Biocapital Advisors LP | 2,347,000 | $74.2M | 6.01% | +589,221+33.5% | Added |
| BlackRock Inc. | 2,602,485 | $82.3M | 0.00% | +380,128+17.1% | Added |
| Suvretta Capital Management, LLC | 2,848,167 | $90.1M | 4.82% | +449,846+18.8% | Added |
| NEA Management Company, LLC | 3,745,262 | $118.4M | 9.04% | −1,000,000−21.1% | Reduced |
| Sr One Capital Management, LP | 3,946,630 | $124.8M | 53.81% | −1,553,377−28.2% | Reduced |
| Perceptive Advisors LLC | 4,016,397 | $127.0M | 3.69% | +174,658+4.5% | Added |
| FMR LLC | 4,690,998 | $148.3M | 0.01% | +2,007,908+74.8% | Added |
| Coppell Advisory Solutions LLC | 224 | – | – | +224 | New |
| Braidwell LP | 0 | $0 | 0.00% | −333,800−100.0% | Sold out |
| Altium Capital Management LP | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Caas Capital Management LP | 0 | $0 | 0.00% | −124,959−100.0% | Sold out |
| Kynam Capital Management, LP | 0 | $0 | 0.00% | −31,336−100.0% | Sold out |
| Vident Investment Advisory, LLC | 0 | $0 | 0.00% | −22,755−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −14,374−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −12,345−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −11,962−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −11,641−100.0% | Sold out |
| MYDA Advisors LLC | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| TCI Wealth Advisors, Inc. | 0 | $0 | 0.00% | −118−100.0% | Sold out |