DOSSIER · 13F Holders · Q4 2025
C3IS INC
2 institutions still hold C3IS INC as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP Y18284169·2 13F holders·last filed Dec 31, 2025
AI Holders Summary · Q4 2025
2 institutions reported C3IS INC in Q4 2025. CITADEL ADVISORS LLC leads at 100.0% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.