UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO SECTION 13A-16 OR 15D-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of June 2025

Commission File Number: 001-41072

IREN Limited

(Translation of registrant’s name into English)

Level 6, 55 Market Street

Sydney, NSW 2000 Australia

+61 2 7906 8301

(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 x Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

EXPLANATORY NOTE

On June 30, 2025, IREN Limited (the “Company”) released a press release providing a business update.

A copy of the Company’s press release is furnished hereto as Exhibit 99.1.

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release of IREN Limited, dated June 30, 2025

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.

	IREN Limited
Date: June 30, 2025	By:	/s/ Daniel Roberts
		Daniel Roberts
		Co-Chief Executive Officer and Director