Quantum-Si Inc. -CW27QSIAWPreferred / convertible
13F holders, Q1 2026 (March 31)6holders +2
2new positions
0sold out
$0.11avg. 13F price*
At the end of Q1 2026, 6 institutions reported holding Quantum-Si Inc. -CW27 (QSIAW) in their 13F filings, up 2 from Q4 2025. 2 opened new positions and 0 sold out. The largest holders were Deerfield Management Company, L.P. ($36K), Susquehanna International Group, LLP ($10K) and Jane Street Group, LLC ($2K).
- Company
- Quantum-Si Inc. -CW27
- CUSIP
- 74765K113
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $2K |
| Exits | 0 | $0 |
All 13F filers, Q4 2025 → Q1 2026: 14,622 shares bought and 10,464 shares sold, net +4,158 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 6 holders
| Deerfield Management Company, L.P. | — | No change | 333,333 | $36K |
| Susquehanna International Group, LLP | — | Reduce -10.5% | 85,121 | $10K |
| Jane Street Group, LLC | — | Reduce -2.3% | 16,565 | $2K |
| Wolverine Asset Management LLC | — | New | 14,522 | $2K |
| UBS Group AG | — | Reduce -2.7% | 2,080 | $227 |
| Toronto Dominion Bank | — | New | 100 | $11 |
"% of holder's portfolio" is QSIAW's weight in each manager's 13F, not the share of Quantum-Si Inc. -CW27 the manager owns.