Sec Form 4 Filing - SUN VALLEY GOLD MASTER FUND, LTD @ VISTA GOLD CORP - 2021-07-12

FORM 4 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 SUN VALLEY GOLD MASTER FUND, LTD 2. Issuer Name and Ticker or Trading Symbol VISTA GOLD CORP [ VGZ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) INTERNATIONAL MANAGEMENT SERVICES LTD, 3RD FLR, HARBOUR CTRE, N CHURCH ST BOX61 3. Date of Earliest Transaction (MM/DD/YY) 07/12/2021 (Street) GRAND CAYMAN, E9KY1-1102 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 Shares 07/12/2021 P 852,800 A $ 1.1( 3 ) 6,193,815 I See footnote( 1 ) Common Shares 07/12/2021 P 447,200 A $ 1.1( 3 ) 13,728,729 D( 2 )

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 Warrants $ 1.25 07/12/2021 P 426,400 07/12/2021 07/12/2024 Common Shares 426,400 $ 1.1( 3 ) 426,400 I See footnote( 1 ) Warrants $ 1.25 07/12/2021 P 223,600 07/12/2021 07/12/2024 Common Shares 223,600 $ 1.1( 3 ) 223,600 D( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SUN VALLEY GOLD MASTER FUND, LTD INTERNATIONAL MANAGEMENT SERVICES LTD 3RD FLR, HARBOUR CTRE, N CHURCH ST BOX61 GRAND CAYMAN, E9KY1-1102 X SUN VALLEY GOLD LLC 620 SUN VALLEY ROAD 2ND FLR, PO BOX 2211 KETCHUM, ID83340 X Palmedo Peter F. C/O SUN VALLEY GOLD LLC 620 SUN VALLEY ROAD 2ND FLR, PO BOX 2211 KETCHUM, ID83340 X Signatures Sun Valley Gold Master Fund, Ltd., By: Peter F. Palmedo, /s/ Peter F. Palmedo 02/15/2022 Signature of Reporting Person Date Sun Valley Gold LLC, By: Peter F. Palmedo, /s/ Peter F. Palmedo 02/15/2022 Signature of Reporting Person Date Peter F. Palmedo, /s/ Peter F. Palmedo 02/15/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Common Shares are held in the accounts of advisory clients of Sun Valley Gold LLC and may be deemed to be beneficially owned by Sun Valley Gold LLC and Peter F. Palmedo, the managing member of Sun Valley Gold LLC. ( 2 )The Common Shares are held by Sun Valley Gold Master Fund, Ltd. and may be deemed to be beneficially owned by Sun Valley Gold LLC, the investment manager of Sun Valley Gold Master Fund, Ltd., and Peter F. Palmedo, the managing member of Sun Valley Gold LLC. ( 3 )The common shares and warrants purchased on 07/12/2022 were purchased as "Units". Each Unit consists of one common share and one-half of one common share purchase warrant. Each whole common share purchase warrant entitles the holder to purchase one common share at an exercise price of $1.25 per share. The Unit price of $1.10 reflects the cost to purchase both the common share and the one-half common share warrant.

Remarks: Each of Sun Valley Gold LLC, Sun Valley Gold Master Fund, Ltd. and Peter F. Palmedo disclaim beneficial ownership of the reported securities except to the extent of his or its pecuniary interest therein, and affirmatively disclaim being a "group" for purposes of Section 16 of the Securities Exchange Act of 1934, as amended.

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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