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.
Q2 2026 vs. Q1 2026
How the institutions holding Arcellx, Inc. changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Of which not filed for Q2 2026 | Q2 2026 | Change |
|---|---|---|---|---|
| Holders | 240 | 4 | 2 | −234 |
| Shares | 57.0M | 183.0K | 30.0K | −56.8M (−99.9%) |
| Value | $6.52B | $21.0M | $3.43M | −$6.49B (−99.9%) |
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (0)
Institutions that held Arcellx, Inc. at the end of Q2 2026 but not at the end of Q1 2026.
None.
Sold out (234)
Institutions that held Arcellx, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.
Showing the largest 100 of 234 by value.
Not filed for Q2 2026 yet (4)
Institutions that held Arcellx, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Janus Henderson Group PLC | 90,280 | $10.4M |
| CIBRA Capital Ltd | 88,623 | $10.2M |
| BCK Capital Management LP | 4,000 | $459.3K |
| CWM, LLC | 77 | $8.84K |