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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, 0 vs. previous quarter
- 3
- 13F valueReported value at the end of Q2 2026
- $123.0K
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding CISS, Q2 2026
No superinvestor reported holding CISS at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by C3is Inc. insiders from Form 4, newest first.
No open-market purchases or sales by C3is Inc. insiders are on file.
Top 10 13F holders, Q2 2026
The largest institutional positions in C3is Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Towerview LLC | 50,000 | $83.0K | 0.05% | +50,000 | New |
| HRT Financial LP | 24,459 | $40.0K | 0.00% | −52,061−68.0% | Reduced |
| Caitong International Asset Management Co., Ltd | 2 | $3 | 0.00% | +2 | New |