As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Sunshine Silver Mining & Refining Co. The largest reported stake is Thomas Scott Kaplan's, at 62.9%. 2 filings are on record since August 7, 2026 (Schedule 13G, August 7, 2026).
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Sunshine Silver Mining & Refining Co has 2 Schedule 13D or 13G filings on record since 2026-08-07. 2 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 62.9% | 96,050,348 | SCHEDULE 13G, 2026-08-07 | 2026-06-30 | |
| Ospraie Real Assets Fund LP | 17.3% | 24,842,328 | SCHEDULE 13G, 2026-08-10 | 2026-06-30 |
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More on Sunshine Silver Mining & Refining Co and the records around it.
Sunshine Silver Mining & Refining Co elsewhere on the record
Companies that share a holder
- Electrum Silver US LLC also filed stake reports on 1 other company: First Majestic Silver Corp. (Nov 2025)
- Ospraie Real Assets Fund LP also filed stake reports on 2 other companies: Sinda Ltd. (Aug 2026), IONETIX CORPORATION (Apr 2026)
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What the Full Report on Sunshine Silver Mining & Refining Co covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Electrum Silver US LLC | 0 | 86,037,688 | 0 | 86,037,688 | SCHEDULE 13G, 2026-08-07 |
| Electrum Strategic Management LLC | 0 | 94,330,848 | 0 | 94,330,848 | SCHEDULE 13G, 2026-08-07 |
| Electrum Global Holdings L.P. | 0 | 94,330,848 | 0 | 94,330,848 | SCHEDULE 13G, 2026-08-07 |
| TEG Global GP Ltd. | 0 | 94,330,848 | 0 | 94,330,848 | SCHEDULE 13G, 2026-08-07 |
| The Electrum Group LLC | 0 | 94,330,848 | 0 | 94,330,848 | SCHEDULE 13G, 2026-08-07 |
| Electrum Silver US II LLC | 0 | 8,293,160 | 0 | 8,293,160 | SCHEDULE 13G, 2026-08-07 |
| Electrum Strategic Opportunities Fund II L.P. | 0 | 8,293,160 | 0 | 8,293,160 | SCHEDULE 13G, 2026-08-07 |
| Electrum Strategic Opportunities Fund II GP L.P. | 0 | 8,293,160 | 0 | 8,293,160 | SCHEDULE 13G, 2026-08-07 |
| ESOF II GP Ltd. | 0 | 8,293,160 | 0 | 8,293,160 | SCHEDULE 13G, 2026-08-07 |
| Tigris Financial Group Ltd. | 0 | 1,266,260 | 0 | 1,266,260 | SCHEDULE 13G, 2026-08-07 |
| Manul Capital Management LLC | 0 | 60,010 | 0 | 60,010 | SCHEDULE 13G, 2026-08-07 |
| GRAT Holdings LLC | 0 | 393,230 | 0 | 393,230 | SCHEDULE 13G, 2026-08-07 |
| Thomas Scott Kaplan | 0 | 96,050,348 | 0 | 96,050,348 | SCHEDULE 13G, 2026-08-07 |
| Ospraie Real Assets Fund LP | 0 | 24,842,328 | 0 | 24,842,328 | SCHEDULE 13G, 2026-08-10 |
| Ospraie Real Assets GP LLC | 0 | 24,842,328 | 0 | 24,842,328 | SCHEDULE 13G, 2026-08-10 |
| Ospraie Management, LLC | 0 | 24,842,328 | 0 | 24,842,328 | SCHEDULE 13G, 2026-08-10 |
| Ospraie Holding I, L.P. | 0 | 24,842,328 | 0 | 24,842,328 | SCHEDULE 13G, 2026-08-10 |
| Ospraie Management Inc. | 0 | 24,842,328 | 0 | 24,842,328 | SCHEDULE 13G, 2026-08-10 |
| Dwight Anderson | 0 | 24,842,328 | 0 | 24,842,328 | SCHEDULE 13G, 2026-08-10 |
The latest filing identifies Sunshine Silver Mining & Refining Co by CUSIP 867866105 and gives its principal executive office as 2209 Big Creek Road, Kellogg, ID 83837 (SCHEDULE 13G, 2026-08-10).
What the percentages are based on
See responses to Item 11 on each cover page. As of June 30, 2026, the aggregate 96,050,348 Common Shares (including 8,869,660 shares underlying exercisable warrants) that the Reporting Persons may be deemed to beneficially own represents approximately 62.9% of the total Common Shares deemed to be outstanding.Thomas Scott Kaplan, SCHEDULE 13G, 2026-08-07
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-08-07 | Thomas Scott Kaplan | 62.9% | SCHEDULE 13G |
| 2026-08-10 | Ospraie Real Assets Fund LP | 17.3% | SCHEDULE 13G |
Questions about who owns Sunshine Silver Mining & Refining Co
Who owns Sunshine Silver Mining & Refining Co?
On this page, 2 holders' latest ownership filings report 5% or more of Sunshine Silver Mining & Refining Co: Thomas Scott Kaplan (62.9%, Schedule 13G, filed 2026-08-07) and Ospraie Real Assets Fund LP (17.3%, Schedule 13G, filed 2026-08-10).
Who are the largest shareholders of Sunshine Silver Mining & Refining Co?
By the share each holder's latest filing reports, the largest holders of Sunshine Silver Mining & Refining Co on this page are Thomas Scott Kaplan (62.9%) and Ospraie Real Assets Fund LP (17.3%).
When did Thomas Scott Kaplan buy into Sunshine Silver Mining & Refining Co?
The filings give report dates, not purchase dates. The earliest filing from Thomas Scott Kaplan on this page is the Schedule 13G, filed 2026-08-07, reporting 62.9%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 2 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.