C3ISCISS
13F holders, Q4 2025 (December 31)5holders +2
2new positions
1sold out
1famous investor
$0.23avg. 13F price*
At the end of Q4 2025, 5 institutions reported holding C3IS Inc. (CISS) in their 13F filings, up 2 from Q3 2025. 2 opened new positions and 1 sold out. The largest holders were L1 Global Manager Pty Ltd ($198K), Wexford Capital LP ($26K) and Citadel Advisors ($11K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- C3IS Inc.
- CUSIP
- Y18284169
- Latest filing quarter
- Q4 2025
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $6K |
| Exits | 1 | $5K |
All 13F filers, Q3 2025 → Q4 2025: 60,186 shares bought and 2,500 shares sold, net +57,686 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 5 holders
| L1 Global Manager Pty Ltd | 0.13% | — | 861,260 | $198K |
| Wexford Capital LP | 0.01% | No change | 112,014 | $26K |
| Citadel Advisors | 0.00% | Add +260.3% | 47,635 | $11K |
| Sassicaia Capital Advisers LLC | 0.01% | New | 19,641 | $5K |
| UBS Group AG | 0.00% | New | 6,131 | $1K |
"% of holder's portfolio" is CISS's weight in each manager's 13F, not the share of C3IS Inc. the manager owns.