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Sunshine Silver Mining & Refining Company reported new high-grade drill results from its ongoing 50,000-metre drilling program at the Sunshine Mine in Idaho’s Silver Valley. Multiple recent intercepts in the Upper Country, including the new 10 Vein, exceed 1,000 grams per tonne silver and are intended to support a planned 2027 Sunshine Mine Feasibility Study and a planned return to silver production in late 2028.
The program was about 60% complete as of July 2026, with three underground drill rigs and completion targeted for October 2026. The Sunshine Mine hosts an Indicated Mineral Resource of 103.9 million ounces of silver at an average grade of 1,022 gpt and an Inferred Mineral Resource of 159.8 million ounces at 776 gpt. At approximately 1,000 tonnes per day, the mine is expected to produce about 6.7 million ounces of silver annually in its first five years and 5.8 million ounces per year over a 24-year mine life, with a Phase 1 objective of doubling throughput to roughly 2,000 tonnes per day.
Sunshine Silver Mining & Refining Co reported that an affiliate of Ospraie completed a cashless exercise of a warrant in connection with the closing of its initial public offering. The warrant covered 2,615,060 shares of common stock at an exercise price of $2.87 per share. The issuer withheld 555,555 of the warrant shares to pay the exercise price and cancelled those shares, issuing the remaining 2,059,505 shares of common stock to Ospraie Real Assets Fund LP. Footnotes state that no shares were sold into the market and that the newly issued shares remain subject to an IPO lock-up agreement. Several Ospraie entities and Dwight Anderson may be deemed to share beneficial ownership, while each disclaims ownership beyond any pecuniary interest.
Sunshine Silver Mining & Refining Co’s General Counsel, Michelle H. Shepston, reported open-market purchases of the company’s Common Stock. On June 5, 2026, she bought a total of 5,065 shares at $13.50 per share, including 5,000 shares held directly and 65 shares held indirectly through her daughter.
Sunshine Silver Mining & Refining Co director and Chief Executive Officer Eileen White reported an open-market purchase of company stock. On June 5, 2026, she bought 2,000 shares of common stock at $13.50 per share, held directly in her name.
After this transaction, she directly owns 2,000 common shares. The filing also reports 50,000 common shares held indirectly through White Mining Consulting Inc., where she is President and may be deemed to beneficially own those securities.
Ebeling Nathan John reported acquisition or exercise transactions in this Form 4 filing.
Sunshine Silver Mining & Refining Co director Nathan John Ebeling received a grant of 8,929 restricted stock units (RSUs) of common stock. The award is recorded at a price of $0.00 per share because it is a compensation grant, not a market purchase.
Each RSU represents the right to receive one share of common stock. 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 stockholders meeting, provided he continues serving on the Board. Following this grant, he holds 8,929 shares directly.
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.
Sunshine Silver Mining & Refining Co director Radford Lawrence P reported acquiring more company equity. He made an open-market purchase of 2,500 shares of common stock at $13.50 per share, bringing his direct holdings to 11,429 shares after the trade.
He was also granted 8,929 restricted stock units (RSUs), each representing one share of common stock. These 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 shareholder meeting, subject to his continued board service.
Muniz Quintanilla Daniel reported acquisition or exercise transactions in this Form 4 filing.
Sunshine Silver Mining & Refining Co director Daniel Muniz Quintanilla received an equity award of restricted stock units. He was granted 8,929 shares of Common Stock at $0.00 per share, increasing his direct holdings to 8,929 shares.
The award is structured as restricted stock units (RSUs), each representing a contingent right to one share of common stock. These 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, provided he continues serving on the Board through that date.
Sunshine Silver Mining & Refining Co director Douglas Groh increased his stake through both a market purchase and an equity grant. He bought 10,000 shares of common stock in an open-market transaction at $13.50 per share and also received 8,929 restricted stock units as a board compensation award.
Following these transactions, his directly held common stock position reported in the filing was 143,929 shares. The RSUs represent the right to receive an equal number of common shares and vest in full on the earlier of the first anniversary of the grant or immediately before the company’s 2027 annual stockholder meeting, contingent on his continued board service.
Erfan Ali reported acquisition or exercise transactions in this Form 4 filing.
Sunshine Silver Mining & Refining Co director Erfan Ali received 8,929 shares of common stock through a restricted stock unit (RSU) grant. The grant carries a price of $0.00 per share and is compensation-related rather than an open-market purchase.
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, subject to Ali’s continued board service. Separately, an entity associated with Ali, Ajami Associates Limited, holds 346,160 shares of common stock indirectly.