6-K

UNITEDSTATES

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

REPORTOF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDERTHE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2026

Commission File Number: 001-41986

AustralianOilseeds Holdings Limited

(Exact name of registrant as specified in its charter)

126– 142 Cowcumbla Street, Cootamundra

Site2: 52 Fuller Drive Cootamundra

POBox 263 Cootamundra, Australia 2590

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: +02 6942 4347

NotApplicable

(Former name or former address, if changed since last report)

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 ☐

Changeof Transfer Agent

Effective as of February 27, 2026 (the “Effective Date”), Australian Oilseeds Holdings Limited, an exempted company with limited liability incorporated under the laws of the Cayman Islands (the “Company”) has appointed Transhare Corporation (“Transhare”) to serve as its new transfer agent and registrar. All of the Company’s registered ordinary shares, par value US$0.0001 per share, and related records will be transferred from Continental Stock Transfer & Trust Company (“Continental”), the Company’s prior transfer agent and registrar, to Transhare.

SIGNATURES

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