Sunshine Silver (SSMR) director holds two 500K-share options

Rhea-AI Filing Summary

Sunshine Silver Mining & Refining Co director Daniel Muniz Quintanilla has reported existing stock option holdings in his Form 3. He holds two fully vested stock option awards, each linked to 500,000 shares of Common Stock, with exercise prices of $4.0000 and $3.0400, both expiring on May 28, 2031.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Muniz Quintanilla Daniel

Role null

Type	Security	Shares	Price	Value
holding	Stock Option (Right to Buy)	--	--	--
holding	Stock Option (Right to Buy)	--	--	--

Holdings After Transaction: Stock Option (Right to Buy) — 500,000 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Option exercise price 1: $4.0000 per share Option exercise price 2: $3.0400 per share Underlying shares per option grant: 500,000 shares +1 more

4 metrics

Option exercise price 1 $4.0000 per share Stock Option (Right to Buy) on Common Stock

Option exercise price 2 $3.0400 per share Stock Option (Right to Buy) on Common Stock

Underlying shares per option grant 500,000 shares Common Stock underlying each stock option award

Option expiration date May 28, 2031 Expiration date for both stock option awards

Key Terms

Stock Option (Right to Buy), Common Stock, fully vested

3 terms

Stock Option (Right to Buy) financial

"security_title": "Stock Option (Right to Buy)""

Common Stock financial

"underlying_security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

fully vested financial

"These stock options were granted on May 28, 2021 and are fully vested."

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Muniz Quintanilla Daniel

(Last) (First) (Middle)

2209 BIG CREEK RD

(Street)

KELLOGG IDAHO 83837

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/03/2026

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

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	(1)	05/28/2031	Common Stock	500,000	$3.04	D
Stock Option (Right to Buy)	(1)	05/28/2031	Common Stock	500,000	$4	D

Explanation of Responses:

1. These stock options were granted on May 28, 2021 and are fully vested.

Remarks:

Exhibit 24 - Power of Attorney.

	/s/ Michelle Shepston, as attorney-in-fact	06/03/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does Sunshine Silver Mining (SSMR) director Daniel Muniz Quintanilla report in this Form 3?

Daniel Muniz Quintanilla reports his existing stock option holdings in Sunshine Silver Mining & Refining Co. The filing lists two fully vested stock option awards, each tied to 500,000 shares of Common Stock, rather than any new purchase or sale activity.

How many shares underlie the stock options reported by SSMR director Daniel Muniz Quintanilla?

The director’s Form 3 reports two stock option awards, each covering 500,000 underlying shares of Common Stock. These options represent rights to buy shares at preset exercise prices but do not reflect any immediate share purchase or sale in this filing.

What are the exercise prices of the stock options held by SSMR director Daniel Muniz Quintanilla?

The filing shows exercise prices of $4.0000 and $3.0400 per share for the director’s stock options. These prices are the amounts he would pay per share to convert each option into Common Stock before the options expire in 2031.

When do Daniel Muniz Quintanilla’s reported SSMR stock options expire?

Both reported stock option awards expire on May 28, 2031, according to the Form 3. After this expiration date, the rights to buy Common Stock at the stated exercise prices of $4.0000 and $3.0400 per share would no longer be exercisable.

Are Daniel Muniz Quintanilla’s Sunshine Silver Mining stock options vested?

Yes. A footnote states that these stock options were granted on May 28, 2021 and are fully vested. Full vesting means the director has earned the right to exercise the options, subject to their exercise prices and the 2031 expiration date.