UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 15

CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number:
001-33574

MAG SILVER CORP.

(Exact name of registrant as specified in its charter)

#801 – 815 Hastings St. W

Vancouver, British Columbia

Canada V6C 1B4

604-684-1175

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Common Shares of MAG Silver Corp., no par value
(Title of each class of securities covered by this Form)

None

(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

Rule 12g-4(a)(1)	☒
Rule 12g-4(a)(2)	☐
Rule 12h-3(b)(1)(i)	☒
Rule 12h-3(b)(1)(ii)	☐
Rule 15d-6	☐
Rule 15d-22(b)	☐

Approximate number of holders of record as of the certification or notice date:

Common Shares of MAG Silver Corp.: One (1) *

* Effective September 4, 2025, the Registrant and Pan American Silver Corp. (“Pan American”) completed a court-approved statutory plan of arrangement under the Business Corporations Act (British Columbia) pursuant to which Pan American acquired all of the issued and outstanding shares of the Registrant.

Pursuant to the requirements of the Securities Exchange Act of 1934, MAG Silver Corp. has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

		MAG Silver Corp.
Date: September 17, 2025	By:	/s/ “Delaney Fisher”
		Name:Delaney Fisher
		Title: SVP, Legal and Secretary

This Form 15 is being filed to replace in its entirety the Form 15 filed by the Registrant on September 15, 2025 which was inadvertently labelled as a Form 15F-12G rather than a Form 15-12G.