| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Imperial Petroleum Inc./Marshall Islands | 74% | +21% | $53,415,697 | +$35,040,697 | 36,337,209 | +191% | Imperial Petroleum Inc. | 29 Dec 2025 |
| L1 Capital Global Opportunities Master Fund, Ltd. | 10% | $651,523 | 443,213 | L1 Capital Global Opportunities Master Fund, Ltd. | 11 Dec 2025 | |||
| Evergreen Capital Management LLC/NV | 10% | $762,326 | 443,213 | Evergreen Capital Management LLC | 11 Dec 2025 | |||
| S.H.N. Financial Investments Ltd. | 10% | +243% | $651,523 | +$542,486 | 443,213 | +498% | S.H.N. Financial Investments Ltd. | 11 Dec 2025 |
| Athanasios Tsiakmakis | 5% | -67% | $688,000 | +$421,400 | 400,000 | +158% | Athanasios Tsiakmakis | 09 Jan 2026 |
| Flawless Management Inc. | 3.7% | -43% | $229,316 | 100,577 | 0% | Harry N. Vafias | 09 Oct 2025 | |
| Pandora Consultants II SA | 2.7% | $97,917 | 42,946 | Nikolaos Vafias | 30 Sep 2025 |
As of 31 Dec 2025, 5 institutional investors reported holding 1,046,681 shares of C3is Inc. - Common Stock, par value $0.01 per share (CISS). This represents 24% of the company’s total 4,436,567 outstanding shares.
The largest institutional shareholders of C3is Inc. - Common Stock, par value $0.01 per share (CISS) together control 24% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| L1 Global Manager Pty Ltd | 19% | 861,260 | 0% | 0.13% | $198,090 |
| WEXFORD CAPITAL LP | 2.5% | 112,014 | 0% | 0.01% | $25,760 |
| CITADEL ADVISORS LLC | 1.1% | 47,635 | +260% | 0% | $10,956 |
| Sassicaia Capital Advisers LLC | 0.44% | 19,641 | 0.01% | $4,517 | |
| UBS Group AG | 0.14% | 6,131 | 0% | $1,410 | |
| FNY Investment Advisers, LLC | 0% | 0 | -100% | $0 |