C3is Inc. - Common Shares, par value $0.01 (CISS)

Historical Holders from Q1 2025 to Q3 2025

Symbol
CISS on Nasdaq
CUSIP
Y18284169
Type / Class
Equity / Common Shares, par value $0.01
Shares outstanding
2.75M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
125K
Holdings value
$269K
% of all portfolios
0%
Grand Portfolio weight change
+0%
Number of holders
2
Number of buys
2
Number of sells
-3
Average Value change %
+0%
Average buys %
+0%
Average sells %
0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of C3is Inc. - Common Shares, par value $0.01 (CISS)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Imperial Petroleum Inc./Marshall Islands 68.8% -20.7% $13.7M $2.43M 6M +21.6% Imperial Petroleum Inc. Oct 9, 2025
Athanasios Tsiakmakis 14.36% $330K 155K Athanasios Tsiakmakis Sep 16, 2025
Flawless Management Inc. 3.7% -43.3% $229K 101K 0% Harry N. Vafias Oct 9, 2025
S.H.N. Financial Investments Ltd. 2.7% $158K 74.2K S.H.N. Financial Investments Ltd. Nov 14, 2025
Pandora Consultants II SA 2.7% $97.9K 42.9K Nikolaos Vafias Sep 30, 2025

Institutional Holders of C3is Inc. - Common Shares, par value $0.01 (CISS)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 125K $269K +$169K $2.15 2
2025 Q2 37.4K $123K +$123K $3.28 4
2025 Q1 31 $20.00 +$20.00 $0.65 1