Sunshine Silver director granted 8,929 RSUs

Zink Paul H reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Zink Paul H reported acquisition or exercise transactions in this Form 4 filing.

Sunshine Silver Mining & Refining Co director receives equity grant

Director Paul H. Zink was granted 8,929 shares of Sunshine Silver Mining & Refining common stock in the form of restricted stock units at a stated price of $0.00 per share. Following this award, he directly holds 8,929 common shares.

The RSUs vest in full on the earlier of the first anniversary of the grant date or the day immediately preceding the company’s 2027 Annual Meeting of Stockholders, as long as he continues serving on the Board through that date.

Insider Trade Summary

Grant/Award: 8,929 shares

Grant/Award 1 txn

Insider Zink Paul H

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	8,929	$0.00	$0.00

Holdings After Transaction: Common Stock — 8,929 shares (Direct)

Footnotes (1)

1. F1. Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

Key Figures

RSUs granted: 8,929 shares Price per share: $0.00 per share Shares held after: 8,929 shares +1 more

4 metrics

RSUs granted 8,929 shares Restricted stock units granted to director on 2026-06-05

Price per share $0.00 per share Stated price for RSU equity award

Shares held after 8,929 shares Total direct common shares following the transaction

Vesting outside date 2027 Annual Meeting RSUs vest by the day before the 2027 Annual Meeting

Key Terms

restricted stock units ("RSUs"), contingent right, vest in full, Annual Meeting of Stockholders

4 terms

restricted stock units ("RSUs") financial

"Represents shares of restricted stock units ("RSUs") granted to the reporting person."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

contingent right financial

"Each RSU represents a contingent right to receive one share of the Issuer's common stock."

vest in full financial

"The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders"

Annual Meeting of Stockholders financial

"the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Sunshine Silver Mining (SSMR) report for Paul H. Zink?

Sunshine Silver Mining reported a grant to director Paul H. Zink of 8,929 restricted stock units, each equal to one common share. The RSUs were awarded at a stated price of $0.00 per share as equity-based compensation for his Board service.

How many Sunshine Silver Mining (SSMR) shares does Paul H. Zink hold after this Form 4?

After the reported grant, Paul H. Zink directly holds 8,929 shares of Sunshine Silver Mining common stock. All of these shares come from the newly awarded restricted stock units, reflecting his current reported direct ownership position as a director.

When do Paul H. Zink’s Sunshine Silver Mining (SSMR) RSUs vest?

The RSUs vest in full on the earlier of the first anniversary of the grant date or the day immediately preceding Sunshine Silver Mining’s 2027 Annual Meeting of Stockholders. Vesting requires Zink to continue serving on the Board through that applicable date.

What type of equity award did Sunshine Silver Mining (SSMR) grant to Paul H. Zink?

Sunshine Silver Mining granted Paul H. Zink restricted stock units, or RSUs, which each represent a contingent right to receive one share of common stock. The award is structured as director compensation rather than an open-market purchase of existing shares.

Was there any purchase price paid for the Sunshine Silver Mining (SSMR) RSU grant?

No cash purchase price was paid for this grant. The Form 4 shows a transaction price per share of $0.00, indicating the 8,929 restricted stock units were issued as a compensatory equity award tied to Paul H. Zink’s Board service.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/08/2026 - 06:42 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Zink Paul H

(Last) (First) (Middle)

2209 BIG CREEK RD

(Street)

KELLOGG IDAHO 83837

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Sunshine Silver Mining & Refining Co [ SSMR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/05/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	06/05/2026		A		8,929(1)	A	$0	8,929	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

	/s/ Michelle Shepston, as attorney-in-fact	06/08/2026
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)