13F reference period
n/a
Security Snapshot
C3is Inc. - Common Stock, par value $0.01 per share Institutional Ownership
CUSIP: BBG01GSFY8Z6
13F Institutional Holders and Ownership History
Institutions Reporting
Shares (Excl. Options)
n/a
Price
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Shares outstanding
- 566,245
Filing notes and source
Key facts
- BBG01GSFY8Z6 - C3is Inc. - Common Stock, par value $0.01 per share is tracked under CUSIP BBG01GSFY8Z6.
- 13F reference-period holder data is not available.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder data for the Q2 2026 reference period is not available.
- Available periods remain in the history table; they do not substitute for the headline period.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Schedule 13D/G
Open SEC evidence
Ownership context comes from Schedule 13D/G and available holder history for this CUSIP.
Security key
BBG01GSFY8Z6
13F reference period
n/a
13F holders
13D/G owners
3
CIK / CUSIP context first
BBG01GSFY8Z6 full holder history
C3is Inc. SEC filings
C3is Inc. company facts
C3is Inc. insider transactions
Broader feeds
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
BBG01GSFY8Z6
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Imperial Petroleum Inc./Marshall Islands | 90% | 4,994,672 | Imperial Petroleum Inc. | 04 May 2026 | ||||
| WEXFORD CAPITAL LP | 7% | 112,014 | WEXFORD CAPITAL LP | 19 Sep 2025 | ||||
| Evergreen Capital Management LLC/NV | 4.9% | 27,746 | Evergreen Capital Management LLC | 31 Mar 2026 |