Quick Takeaways
- Imperial Petroleum Inc./Marshall Islands filed SCHEDULE 13D/A for C3is Inc. Common Stock, par value $0.01 per share.
- Disclosed ownership: 82%.
- Date of event: 02 Feb 2026.
Imperial Petroleum Inc./Marshall Islands - 02 Feb 2026 SCHEDULE 13D/A Report for C3is Inc. Common Stock, par value $0.01 per share
- Filing Manager
- Imperial Petroleum Inc./Marshall Islands
- Reporting Manager
- Imperial Petroleum Inc.
- Shares outstanding
- 12,104,300 shares
- Disclosed Ownership
- 9,913,422 shares
- Ownership
- 82%
- Form type
- SCHEDULE 13D/A
- Filing time
- 04 Feb 2026, 17:00:01 UTC
- Date of event
- 02 Feb 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"Imperial Petroleum Inc./Marshall Islands disclosed 82% ownership in C3is Inc. Common Stock, par value $0.01 per share on 02 Feb 2026."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 04 Feb 2026, 17:00.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Imperial Petroleum Inc. | 82% | 9,913,422 | 9,913,422 | 0 | Harry N. Vafias | Chief Executive Officer | 0001876581 |