Security key
Y18284169
C3is Inc. - Common Shares, par value $0.01 (CISS)
CUSIP: Y18284169
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Shares, par value $0.01
- Total 13F shares
- 1,046,681
- Total 13F value
- $240,733
- Share change
- +57,686
- SEC-reported price per share
- $0.23
- Number of holders
- 5
- Value change
- +$8,842
- Number of buys
- 3
- Number of sells
- 1
- Shares outstanding
- 13,119,882
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
5
Top holders
5
CISS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
C3is Inc. SEC filings
C3is Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP Y18284169
Recent filing periods:
Ownership snapshot
Top reported holders of CISS - C3is Inc. - Common Shares, par value $0.01 (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Imperial Petroleum Inc./M...
Disclosed value leader
Imperial Petroleum Inc./M...
Comparable rows
9/9
Latest evidence
31 Dec 2025
13D/G
13F
Lead comparable stake: 74%
13D/G row: Imperial Petroleum Inc./Marshall Islands
Showing 1-6 of 9 holder rows.
Quick read
Imperial Petroleum Inc./Marshall Islands leads the comparable SEC ownership view at 74%.
9 of 9 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Imperial Petroleum Inc./Marshall Islands's linked filing trail.
Comparable ownership
Top 5
Imperial Petroleum Inc./Marshall ...
74%
Evergreen Capital Management LLC/NV
10%
Ayrton Capital LLC
10%
WEXFORD CAPITAL LP
7%
L1 Capital Global Opportunities M...
5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 9 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Imperial Petroleum Inc./Marshall Islands |
13D/G
Imperial Petroleum Inc.
|
74%
|
$53,415,697
36,337,209 shares
|
+$35,040,697 | 29 Dec 2025 |
| Evergreen Capital Management LLC/NV |
13D/G
Evergreen Capital Management LLC
|
10%
|
$762,326
443,213 shares
|
$0 | 11 Dec 2025 |
| Ayrton Capital LLC |
13D/G
|
10%
|
—
856,228 shares
|
$0 | 31 Dec 2025 |
| WEXFORD CAPITAL LP |
13F
13D/G
Company
|
7%
from 13D/G
|
$240,160
112,014 shares
|
— | 30 Sep 2025 |
| L1 Capital Global Opportunities Master Fund, Ltd. |
13D/G
|
5%
|
$111,325
222,650 shares
|
$0 | 31 Dec 2024 |
| Flawless Management Inc. |
13D/G
Harry N. Vafias
|
3.7%
|
$229,316
100,577 shares
|
$0 | 09 Oct 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
5
Shares
1,046,681
Rows available
5
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
3
Q4 2025 holders
5
Holder diff
2
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend