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 2025
Institutional positions in Arcellx, Inc. as of Jun 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
- 203
- +6 vs. Q1 2025
- Shares held
- 61.4M
- −195.7K (−0.3%) vs. Q1 2025
- Total value
- $4.01B
- −$32.5M (−0.8%) vs. Q1 2025
- New holders
- 30
- 61 more added
- Sold out
- 24
- 82 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Paradigm Biocapital Advisors LP | 4,649,016 | $306.1M | 13.07% | +156,984+3.5% | Added |
| FMR LLC | 5,972,151 | $393.3M | 0.02% | −331,528−5.3% | Reduced |
| Gilead Sciences, Inc. | 6,720,803 | $442.6M | 34.57% | 00.0% | Unchanged |
| Artia Global Partners LP | 0 | $0 | 0.00% | −229,085−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −70,538−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −68,000−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −67,201−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −45,058−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −26,954−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −21,428−100.0% | Sold out |
| PFM Health Sciences, LP | 0 | $0 | 0.00% | −15,488−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −8,880−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −7,702−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −6,900−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −5,074−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −3,948−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −3,495−100.0% | Sold out |
| SIH Partners, LLLP | 0 | $0 | 0.00% | −3,461−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −3,302−100.0% | Sold out |
| Xponance, Inc. | 0 | $0 | 0.00% | −3,278−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −1,751−100.0% | Sold out |
| BI Asset Management Fondsmaeglerselskab A/S | 0 | $0 | 0.00% | −761−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −124−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Sierra Ocean, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Stephens Consulting, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Lindbrook Capital, LLC | – | – | – | – | Not filed |