C3is Inc. - CISS
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Sep 03, 2026 | SCHEDULE 13G | HORNE TIMOTHY P | 9.1% | 135,000 | View |
| Aug 28, 2026 | SCHEDULE 13D/A | — | 5.0% | — | View |
| Aug 19, 2026 | SCHEDULE 13G | JANE STREET GROUP, LLC | 7.2% | 937,330 | View |
| Aug 19, 2026 | SCHEDULE 13G | Jane Street Capital, LLC | 5.2% | 678,960 | View |
| Aug 19, 2026 | SCHEDULE 13G | Jane Street Global Trading, LLC | 2.0% | 258,370 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | S.H.N. Financial Investments Ltd. | 0.4% | 46,719 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | L1 Capital Global Opportunities Master Fund, Ltd. | 1.7% | 223,038 | View |
| Aug 04, 2026 | SCHEDULE 13G | Ascent Partners Fund LLC | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Ascent Partners LLC | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Dominion Capital LLC | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Dominion Capital GP LLC | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Eagle Claw Corp. | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Masada Group Holdings LLC | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Mikhail Gurevich | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Gennadiy Gurevich | 9.99% | 1,610,566 | View |
| Aug 04, 2026 | SCHEDULE 13G | Alon Brenner | 9.99% | 1,610,566 | View |
| Aug 03, 2026 | SCHEDULE 13G | CVI Investments, Inc. | 9.9% | 1,221,154 | View |
| Aug 03, 2026 | SCHEDULE 13G | Heights Capital Management, Inc. | 9.9% | 1,221,154 | View |
| Aug 03, 2026 | SCHEDULE 13G/A | Alta Partners LLC | 8.2% | 1,168,303 | View |
| Jul 31, 2026 | SCHEDULE 13G | Lind Global Fund III LP | 9.99% | 1,325,482 | View |
| Jul 31, 2026 | SCHEDULE 13G | Lind Global Partners III LLC | 9.99% | 1,325,482 | View |
| Jul 31, 2026 | SCHEDULE 13G | EASTON JEFF | 9.99% | 1,325,482 | View |
| Jul 30, 2026 | SCHEDULE 13D/A | — | 5.0% | — | View |
| Jun 24, 2026 | SCHEDULE 13D/A | — | 5.0% | — | View |
| May 18, 2026 | SCHEDULE 13G | TOWERVIEW LLC | 6.5% | 35,000 | View |
| May 11, 2026 | SCHEDULE 13G/A | Evergreen Capital Management LLC | 4.9% | 27,746 | View |
| May 06, 2026 | SCHEDULE 13D/A | — | 5.0% | — | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.