FBInvestor
Stocks / C3is Inc
Institutional Ownership

C3is Inc

CUSIP Y18284177COM NEWQ1 2026

13D / 13G Filings
3
Schedule 13D/13G on record
Beneficial Filers
3
Distinct reporting persons
Largest Stake
81.9%
Max % of class reported
Institutional Holders
3
13F filers (latest quarter)

Beneficial Owners — Schedule 13D / 13G

3 filings · latest Feb 27, 2026

Export CSV — Pro
#FiledReporting PersonForm% of ClassSharesFiling
1Feb 27, 2026Alta Partners LLC13G5.2%56.2KSEC
2Feb 11, 2026Ayrton Capital LLC13G10.0%856.2KSEC
3Feb 4, 2026Imperial Petroleum Inc.13D/A81.9%SEC

Top Institutional Holders (13F)

Largest reported positions · latest quarter

View all →
#FundSharesValue
1Stonex Group Inc.10.4K$8.6K
2Summit Securities Group LLC1.5K$1.2K
3Hrt Financial LP76.5K$63