Immuron Limited (IMRN) files Form 6-K with ASX shareholder letter

Rhea-AI Filing Summary

Immuron Limited submitted a Form 6-K as a foreign private issuer to furnish information previously published to the Australian Securities Exchange. The filing primarily forwards a publicly released letter to shareholders, which is included as Exhibit 99.1. The company specifies that this Form 6-K, including its exhibit, is furnished rather than filed under U.S. securities laws and will only be incorporated into other U.S. filings if explicitly referenced.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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 October 2025

Commission File Number: 001-38104

IMMURON LIMITED

(Name of Registrant)

Level 3, 62 Lygon Street, Carlton South, Victoria, 3053, Australia

(Address of principal executive office)

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

Form 20-F ☒       Form 40-F ☐

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ☐       No ☒

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-

IMMURON LIMITED

EXPLANATORY NOTE

Immuron Limited (the “Company”) published two announcements (the “Public Notices”) to the Australian Securities Exchange on October 2, 2025 titled:

-   Letter to shareholders

A copy of the Public Notice is attached as an exhibit to this report on Form 6-K.

This report on Form 6-K (including the exhibit hereto) shall not be deemed to be “filed” for purposes of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

1

EXHIBITS

Exhibit Number		Description
99.1		Letter to shareholders

2

SIGNATURE

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.

	IMMURON LIMITED
Date: October 2, 2025	By:	/s/ Phillip Hains
		Phillip Hains
		Company Secretary

3

FAQ

What did Immuron Limited (IMRN) submit in this Form 6-K?

Immuron Limited submitted a Form 6-K to furnish information previously announced on the Australian Securities Exchange, including a letter to shareholders attached as Exhibit 99.1.

What is included as Exhibit 99.1 in Immuron Limited's (IMRN) Form 6-K?

Exhibit 99.1 to the Form 6-K is a letter to shareholders from Immuron Limited.

Is Immuron Limited's (IMRN) Form 6-K considered filed under the Exchange Act?

No. The company states that this Form 6-K, including its exhibit, is furnished and is not deemed to be filed for purposes of the Exchange Act.

Will this Immuron Limited (IMRN) Form 6-K be automatically incorporated into other U.S. filings?

No. The Form 6-K and its exhibit will only be incorporated by reference into other U.S. filings if expressly set forth by specific reference.

Why does Immuron Limited (IMRN) use Form 6-K for this disclosure?

As a foreign private issuer, Immuron uses Form 6-K to furnish to the SEC information it has already made public in its home market, in this case announcements to the Australian Securities Exchange.