Quantum-Si Inc. -CW27QSIAWPreferred / convertible
13F holders, Q4 2025 (December 31)4holders
0new positions
0sold out
$0.20avg. 13F price*
At the end of Q4 2025, 4 institutions reported holding Quantum-Si Inc. -CW27 (QSIAW) in their 13F filings, unchanged from Q3 2025. 0 opened new positions and 0 sold out. The largest holders were Deerfield Management Company, L.P. ($67K), Susquehanna International Group, LLP ($19K) and Jane Street Group, LLC ($3K).
- Company
- Quantum-Si Inc. -CW27
- CUSIP
- 74765K113
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q3 2025 → Q4 2025: 994 shares bought and 50,778 shares sold, net −49,784 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 4 holders
| Deerfield Management Company, L.P. | — | No change | 333,333 | $67K |
| Susquehanna International Group, LLP | — | Reduce -34.7% | 95,131 | $19K |
| Jane Street Group, LLC | — | Reduce -1.0% | 16,961 | $3K |
| UBS Group AG | — | Add +86.9% | 2,138 | $430 |
"% of holder's portfolio" is QSIAW's weight in each manager's 13F, not the share of Quantum-Si Inc. -CW27 the manager owns.