mag6k.htm

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

under the Securities Exchange Act of 1934

For: August 21, 2015

MAG Silver Corp.

(SEC File No. 0-50437)

#770 – 800 West Pender Street, Vancouver BC, V6C 2V6, CANADA

Address of Principal Executive Office

The registrant files annual reports under cover:

Form 20-F ¨

Form 40-F þ

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):

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):

Indicate by check mark whether by furnishing the information contained in this Form, the

registrant is also thereby furnishing the information to the Commission pursuant to Rule

12g3-2(b) under the Securities Exchange Act of 1934:

Yes ¨

No þ

If “Yes” is marked, indicate below the file number assigned to the registrant in

connection with Rule 12g3-2(b): 82-

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.

Exhibits

MAG SILVER CORP. CODE OF BUSINESS CONDUCT AND ETHICS