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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM

~~FORM~~ 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of

September

~~For the month of September~~ 2025

Commission File Number 001-41095

~~IMPERIAL~~MPERIAL PETROLEUM INC.

(Translation of registrant’s name into English)

331 Kifissias Avenue, Erithrea 14561 Athens, Greece

(Address of principal executive office)

Indicate by check mark

~~Indicate by check mark~~ whether ~~the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.~~

the registrant files or will file

annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

~~INFORMATION~~Table ~~CONTAINED~~of ~~IN THIS FORM 6-K REPORT~~ Contents

Attached to this report on Form 6-K as Exhibit 99.1 is a copy of the press release of Imperial Petroleum Inc. dated September 5, 2025, announcing its unaudited financial and operating results for the three and six months ended June 30, 2025.

EXHIBIT INDEX

99.1 Imperial Petroleum Inc. Press Release dated September 5, 2025


99.1		Management’s Discussion and Analysis of Financial Condition and Results of Operations and Consolidated Financial Statements for the Six Months Ended June 30, 2024 and 2025

101.INS		Inline XBRL Instance Document

101.SCH		Inline XBRL Taxonomy Extension Schema

101.CAL		Inline XBRL Taxonomy Extension Calculation Linkbase

101.DEF		Inline XBRL Taxonomy Extension Definition Linkbase

101.LAB		Inline XBRL Taxonomy Extension Label Linkbase

101.PRE		Inline XBRL Taxonomy Extension Presentation Linkbase

104		Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

*****

This report

~~This report~~ on Form 6-K, ~~including exhibit 99.1 hereto (other than the section entitled “CEO Harry Vafias Commented:”), is hereby incorporated by reference into the Company’s Registration Statement on Form~~ F-3 (Reg. No. 333-268663), Post Effective Amendment No. 1 to Form F-1 on Form F-3 Registration Statement (Reg. No. 333-266031) and Registration Statements on Form S-8 (Reg. Nos. 333-275745 and 333-278813), including ~~the prospectuses contained therein.~~

exhibit 99.1 hereto, is hereby incorporated by reference into the Company’s Registration Statement

on Form F-3 (Reg. No. 333-268663), Post

Effective Amendment No. 1

to Form F-1 on Form F-3 Registration

Statement (Reg. No. 333-266031) and

Registration Statements

on Form S-8 (Reg. Nos. 333-275745 and 333-278813), including

the prospectuses contained therein.

Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: September 529, 2025

IMPERIAL PETROLEUM INC. By: /s/ ~~Ifigenia~~Ifigeneia Sakellari Name: ~~Ifigenia~~Ifigeneia Sakellari Title: Chief Financial Officer

Filing Compare · Imperial Petroleum Inc./Marshall Islands