UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

Current Report

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 16, 2026

UR-ENERGY INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (720) 981-4588

Securities registered pursuant to Section 12(b) of the Act:

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

On April 6, 2026, Ur-Energy Inc. (the “Company”) filed a new registration statement on Form S-3 (File No. 333-294902), which was declared effective by the Securities and Exchange Commission on April 16, 2026 (the “New Registration Statement”). In connection therewith, the Company filed a new prospectus supplement relating to the Company’s existing at-the-market program (the “ATM Program”) with B. Riley Securities, Inc. (“B. Riley Securities”) and Cantor Fitzgerald & Co. (“Cantor” and together with B. Riley Securities, the “Agents”). The Company entered into first and second amendments on December 17, 2021, and July 19, 2023, respectively, to the Amended and Restated At Market Issuance Sales Agreement, dated June 7, 2021, with the Agents (such amendments, “Amendment No. 1” and “Amendment No. 2,” respectively, and such agreement, the “Sales Agreement”). On April 16, 2026, the Company entered into a third amendment to the Sales Agreement with the Agents (“Amendment No. 3” and together with Amendment No. 1, Amendment No.2, and the Sales Agreement, the “Amended Sales Agreement”) to, among other things, reflect the New Registration Statement under which the Company may sell up to $50,000,000 from time to time through or to the Agents under the Amended Sales Agreement, in addition to amounts previously sold under the Sales Agreement.

The foregoing description of the Amended Sales Agreement is not complete and is qualified in its entirety by reference to the full text of the Sales Agreement, Amendment No. 1, Amendment No. 2, and Amendment No. 3, copies of which are filed herewith as Exhibit 1.1, Exhibit 1.2, Exhibit 1.3, and Exhibit 1.4, respectively, to this Current Report on Form 8-K and are incorporated herein by reference.

The legal opinion of Fasken Martineau DuMoulin LLP relating to the common shares being offered pursuant to the Amended Sales Agreement is filed as Exhibit 5.1 to this Current Report on Form 8-K.

In connection with the ATM Program, the Company has relied on the exemption described in Section 602.1 of the TSX Company Manual, which provides that the Toronto Stock Exchange will not apply its standards to certain transactions involving eligible interlisted issuers on a recognized exchange.

(d)           Exhibits

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 hereunto duly authorized.

Date: April 16, 2026