C3is Inc.
CISS- Exchange
- Nasdaq
- Industry
- Deep Sea Foreign Transportation of Freight
- SEC CIK
- 0001951067
No open-market purchases or sales by C3is Inc. insiders were filed in the last 90 days; 3 institutions reported holding it in 13F filings for Q2 2026, worth $123.0K in total; no superinvestor holds it.
13F holders, Q4 2024
Institutional positions in C3is Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 7
- +1 vs. Q3 2024
- Shares held
- 444.4K
- +223.7K (+101.4%) vs. Q3 2024
- Total value
- $253.5K
- +$2.36K (+0.9%) vs. Q3 2024
- New holders
- 2
- 2 more added
- Sold out
- 1
- 1 more reduced
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CISS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 3 | $123.0K |
| Q1 2026 | 3 | $72.9K |
| Q4 2025 | 5 | $240.7K |
| Q3 2025 | 3 | $273.7K |
| Q2 2025 | 4 | $122.7K |
| Q1 2025 | 4 | $133.6K |
| Q4 2024 | 7 | $253.5K |
| Q3 2024 | 6 | $251.1K |
| Q2 2024 | 7 | $435.8K |
| Q1 2024 | 12 | $55.4K |
| Q4 2023 | 11 | $41.5K |
| Q3 2023 | 9 | $13.0K |
| Q2 2023 | 11 | $150.2K |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding C3is Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Towerview LLC | 325,000 | $185.5K | 0.13% | +255,000+364.3% | Added |
| UBS Group AG | 49,206 | $28.1K | 0.00% | +8,700+21.5% | Added |
| Acadian Asset Management LLC | 40,633 | $23.0K | 0.00% | −57,110−58.4% | Reduced |
| Renaissance Technologies LLC | 29,423 | $16.8K | 0.00% | +29,423 | New |
| SBI Securities Co., Ltd. | 113 | $65 | 0.00% | +113 | New |
| Estabrook Capital Management | 19 | $11 | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 1 | $1 | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −12,388−100.0% | Sold out |