Security Snapshot

C3is Inc. - Common Stock, $0.01 par value (CISS) Institutional Ownership

CUSIP: Y18284151

13F Institutional Holders and Ownership History from Q4 2024 to Q2 2025

Latest Period

n/a

Institutions Reporting

Shares (Excl. Options)

Price

$0.50

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Keep this CUSIP in your research flow, then return after the next filing cycle to check what changed.

Type / Class
Equity / Common Stock, $0.01 par value
Symbol
CISS on Nasdaq
Shares outstanding
4,461,924
Price per share
$0.50
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Sponsored

Quick Takeaways

  • CISS - C3is Inc. - Common Stock, $0.01 par value is tracked under CUSIP Y18284151.
  • Latest finished 13F holder period is not available.
  • 2 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 3 to 0 between Q1 2025 and Q2 2025.
  • Reported value moved from $133,608 to $0.

Why This Matters

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Official SEC Source

Backed by Schedule 13D/13G

Ownership context comes from SEC Form 13F and, when available, Schedule 13D/13G filings.

See Original Filing

Investment Quick Answers

What is CUSIP Y18284151?
CUSIP Y18284151 identifies CISS - C3is Inc. - Common Stock, $0.01 par value in SEC 13F datasets.

Where can I see the latest institutional holders?
Use the ownership history tables below to review the newest available institutional filing periods.

Significant Owners of C3is Inc. - Common Stock, $0.01 par value (CISS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Imperial Petroleum Inc./Marshall Islands 73% $5,766,126 11,532,251 Imperial Petroleum Inc. 10 Jan 2025
L1 Capital Global Opportunities Master Fund, Ltd. 5% $111,325 222,650 L1 Capital Global Opportunities Master Fund, Ltd. 31 Dec 2024

Institutional Holders of C3is Inc. - Common Stock, $0.01 par value (CISS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q2 0 $0 -$133,608 $0.50 0
2025 Q1 205,552 $133,608 +$133,543 $0.65 3
2024 Q4 113 $65 $0.58 1