Imperial Petroleum Inc./Marshall Islands - 02 Feb 2026 SCHEDULE 13D/A Report for C3is Inc. Common Stock, par value $0.01 per share

Filing Manager: Imperial Petroleum Inc./Marshall Islands
Reporting Manager: Imperial Petroleum Inc.
Security: C3is Inc. Common Stock, par value $0.01 per share
Shares outstanding: 12,104,300 shares
Disclosed Ownership: 9,913,422 shares
Ownership: 82%
Form type: SCHEDULE 13D/A
Filing time: 04 Feb 2026, 17:00:01 UTC
Date of event: 02 Feb 2026
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Imperial Petroleum Inc.	82%	9,913,422	9,913,422	0	Harry N. Vafias	Chief Executive Officer	0001876581