Welcome to our dedicated page for Sunshine Silver Mining & Refining Co SEC filings (Ticker: SSMR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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Sunshine Silver Mining & Refining Co Chief Financial Officer Pieter A. van Niekerk has filed an initial Form 3, detailing his equity stake in the company. He reports direct ownership of 75,000 shares of common stock, establishing his baseline share position as an executive.
In addition, he holds warrants exercisable into 37,500 shares of common stock at an exercise price of $5.00 per share, expiring on September 30, 2027. He also holds stock options covering 1,330,000 shares of common stock at an exercise price of $4.00 per share, expiring on July 15, 2035. These options were granted on July 15, 2025 and vest in three equal annual installments on March 17, 2026, 2027 and 2028, subject to his continuous service.
Sunshine Silver Mining & Refining Co reported the initial holdings of its General Counsel, Michelle H. Shepston, on a Form 3. She holds a stock option to buy up to 650,000 shares of common stock at an exercise price of $4.0000 per share, expiring on December 15, 2035. According to a footnote, these options were granted on December 15, 2025 and vest in three equal installments on each of November 11, 2026, November 11, 2027 and November 11, 2028, subject to her continuous service.
Sunshine Silver Mining & Refining Co director Radford Lawrence P has filed an initial statement of beneficial ownership on Form 3. This filing lists him as a director but does not report any share purchases, sales, or other insider transactions in the available data.
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.
Sunshine Silver Mining & Refining Co director Douglas Groh has reported his initial equity holdings in a Form 3. He directly holds 125,000 shares of common stock. He also holds warrants exercisable for 50,000 and 12,500 common shares at an exercise price of $5.00 per share, and a stock option for 250,000 common shares at $4.00 per share. The stock options were granted on July 15, 2025 and vest in three equal annual installments on the first three anniversaries of the grant date, while the warrants are exercisable for one share of common stock until the later of two years from the date of purchase or six months after completion of the company’s initial public offering.
Sunshine Silver Mining & Refining Co director Erfan Ali filed an initial ownership report showing indirect stakes in the company. The filing lists 346,160 shares of common stock held indirectly through Ajami Associates Limited, where Ali is a director and may be deemed to beneficially own these securities.
The filing also reports indirect ownership of warrants on 62,500 shares of common stock, with an exercise price of $5.00 per share and an expiration date of September 30, 2027. Each warrant is exercisable for one common share starting from the later of two years after purchase or six months following the company’s initial public offering.
Sunshine Silver Mining & Refining Co director Anna El-Erian has filed an initial Form 3 with the SEC. This form serves as her first statement as a reporting person for the company and, in this case, does not list any transactions or holdings.
Sunshine Silver Mining & Refining Co (SSMR) filed an initial Form 3 for director Nathan John Ebeling. The filing identifies Ebeling as a director of the company and notes that he is not classified as a ten percent owner. The form does not list any transactions or holdings, serving mainly to register his insider status with the SEC.
Sunshine Silver Mining & Refining Company is registering 20,000,000 shares of common stock in an initial public offering on the NYSE under the symbol SSMR, with an estimated price range of $13.50 to $16.50 per share.
The IPO is expected to raise about $276.6 million in net proceeds at the midpoint, primarily to fund feasibility studies, restart and develop the high‑grade Sunshine Mine and new mill, evaluate and advance an antimony plant and silver/copper refinery, and support exploration and corporate purposes. After the offering, a total of 140,840,360 shares will be outstanding, and Electrum will retain about 60.7% of voting power, making the company a NYSE “controlled company.” Sunshine highlights large silver Mineral Resources, potential antimony and other critical minerals, and targets initial mine restart by 2028.