SSMR · Insider Trading
Sunshine Silver Mining & Refining Company
Every open-market purchase and sale reported by SSMR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-08 | Michelle H Shepston | General Counsel | Buy | +5,065 | +$68.38K |
| 2026-06-08 | Quintanilla Daniel Muniz | Director | A | +8,929 | — |
| 2026-06-08 | Ospraie Management, LLC | 10%+ Owner | MIXED | +12,357,030 | +$31.38K |
| 2026-06-08 | Douglas Groh | Director | MIXED | +18,929 | +$135.00K |
| 2026-06-08 | Tigris Financial Group Ltd. | 10%+ Owner | MIXED | +6,499,641 | +$16.41K |
| 2026-06-08 | Paul H Zink | Director | A | +8,929 | — |
| 2026-06-08 | Nathan John Ebeling | Director | A | +8,929 | — |
| 2026-06-08 | Anna El-Erian | Director | MIXED | +48,929 | +$540.00K |
| 2026-06-08 | Ali Erfan | Director | A | +8,929 | — |
| 2026-06-08 | Lawrence P Radford | Director | MIXED | +11,429 | +$33.75K |
| 2026-06-08 | Heather Eileen White | Chief Executive Officer | Buy | +2,000 | +$27.00K |
| 2026-06-08 | Electrum Silver US II LLC | Director | MIXED | +21,665,470 | +$54.70K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Ospraie Management, LLC | 10%+ Owner | 25,314,550 | $341.75M |
| Electrum Silver US II LLC | Director | 7,374,199 | $99.55M |
| Ali Erfan | Director | 355,089 | $4.79M |
| Douglas Groh | Director | 133,929 | $1.81M |
| Tigris Financial Group Ltd. | 10%+ Owner | 68,939 | $930.68K |
| Heather Eileen White | Chief Executive Officer | 52,000 | $702.00K |
| Lawrence P Radford | Director | 11,429 | $154.29K |
| Quintanilla Daniel Muniz | Director | 8,929 | $120.54K |
| Paul H Zink | Director | 8,929 | $120.54K |
| Anna El-Erian | Director | 8,929 | $120.54K |
| Nathan John Ebeling | Director | 8,929 | $120.54K |
| Michelle H Shepston | General Counsel | 5,065 | $68.38K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the SSMR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.