NXE 6-K: Q3 2025 statements and MD&A; Exhibits 99.1–99.4

Rhea-AI Filing Summary

NexGen Energy Ltd. filed a Form 6-K furnishing quarterly materials. The submission includes unaudited condensed interim consolidated financial statements for the periods ending September 30, 2025 and 2024 (Exhibit 99.1) and the Management's Discussion and Analysis for the three and nine months ended September 30, 2025 (Exhibit 99.2). Exhibits 99.1 and 99.2 are incorporated by reference into the company’s Form F-10 (File No. 333-266575). The filing also includes interim CEO and CFO certifications as Exhibits 99.3 and 99.4, and is signed by Chief Financial Officer Benjamin Salter.

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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 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number 001-38072

___________________

NexGen Energy Ltd.

(Translation of registrant's name into English)

Suite 3150, 1021 - West Hastings Street

Vancouver, B.C., Canada V6E 0C3

(Address of principal executive offices)

___________________

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 ☒

INCORPORATION BY REFERENCE

Exhibits 99.1 and 99.2 to this Report on Form 6-K are hereby incorporated by reference as Exhibits to the Registration Statement on Form F-10 of NexGen Energy Ltd. (File No. 333-266575).

EXHIBIT INDEX

Exhibit	Description
99.1	Unaudited Condensed Interim Consolidated Financial Statements for the Periods Ending September 30, 2025 and 2024
99.2	Management's Discussion and Analysis for the Three and Nine Months Ended September 30, 2025
99.3	Form 52-109F2 Certification of Interim Filings - Chief Executive Officer
99.4	Form 52-109F2 Certification of Interim Filings - Chief Financial Officer

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.

	NEXGEN ENERGY LTD.
	(Registrant)
Date: November 5, 2025	By:	/s/ Benjamin Salter
		Name: Benjamin Salter
		Title:  Chief Financial Officer

FAQ

What did NexGen Energy (NXE) file?

Form 6-K furnishing quarterly financial materials and certifications.

Which exhibits are included with NXE’s Form 6-K?

Exhibit 99.1 financial statements, 99.2 MD&A, 99.3 CEO certification, and 99.4 CFO certification.

Which exhibits are incorporated by reference into NXE’s Form F-10?

Exhibits 99.1 and 99.2 are incorporated into Form F-10 (File No. 333-266575).

What periods do the financial statements cover?

Unaudited condensed interim consolidated financial statements for periods ending September 30, 2025 and 2024.

What periods does the MD&A cover?

The three and nine months ended September 30, 2025.

Who signed the submission and when?

Benjamin Salter, Chief Financial Officer, signed on November 5, 2025.