C3IS INC

Historical 13F Holders

Symbol
CISS
CUSIP
Y18284169
All holders as of
Q4 2025
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Shares Held, Excluding Options
Total Filers

13D/G Filers

Each filer's latest filing for Y18284169 since 12/18/2024, largest first.

Filer % of Class Filed
Imperial Petroleum Inc./Marshall Islands 13D/A 74.0% 12/30/2025
Event 12/29/2025
Evergreen Capital Management LLC/NV 13G/A 10.0% 1/14/2026
Event 12/11/2025
Athanasios Tsiakmakis 13G/A 5.0% 1/13/2026
Event 1/9/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (4)
Flawless Management Inc. 13D/A
3.7% 10/10/2025
Event 10/9/2025
Pandora Consultants II SA 13G/A
2.7% 10/2/2025
Event 9/30/2025
L1 Capital Global Opportunities Master Fund, Ltd. 13G/A 1.7% 8/14/2026
Event 8/14/2026
S.H.N. Financial Investments Ltd. 13G/A 0.4% 8/14/2026
Event 8/14/2026

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2025 Q4 5 1.05 M $241k
2025 Q3 3 128 k $274k
2025 Q2 5 37.4 k $123k
2025 Q1 1 31.0 $20