Sec Form 4/A Filing - Rozelle John W. @ VISTA GOLD CORP - 2015-08-10

FORM 4/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Rozelle John W. 2. Issuer Name and Ticker or Trading Symbol VISTA GOLD CORP [ VGZ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Senior Vice President (Last) (First) (Middle) C/O VISTA GOLD CORP., 7961 SHAFFER PARKWAY, SUITE 5 3. Date of Earliest Transaction (MM/DD/YY) 08/10/2015 (Street) LITTLETON, CO80127 4. If Amendment, Date Original Filed (MM/DD/YY) 08/12/2015 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 08/10/2015 M 11,633 A $ 0 ( 1 ) 95,279 ( 2 ) D Common Stock 08/10/2015 S 4,038 D $ 0.29 91,241 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units $ 0 ( 1 ) 08/10/2015 M 11,633 ( 1 ) ( 1 ) Common Shares 11,633 $ 0 51,367 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Rozelle John W. C/O VISTA GOLD CORP. 7961 SHAFFER PARKWAY, SUITE 5 LITTLETON, CO80127 Senior Vice President Signatures /s/ Connie Martinez as attorney-in-fact for John W. Rozelle 08/21/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Partial vesting of restricted stock units previously reported on Form 4 filed with the Securities and Exchange Commission on August 12, 2013. ( 2 )Total adjusted to reflect Form 4 amendment filed with the Securities and Exchange Commission on August 20, 2015.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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