Sunshine Silver Mining & Refining Co
SSMR- Exchange
- NYSE
- Industry
- Gold and Silver Ores
- SEC CIK
- 0002091017
No open-market purchases or sales by Sunshine Silver Mining & Refining Co insiders were filed in the last 90 days; 49 institutions reported holding it in 13F filings for Q2 2026, worth $1.42B in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Sunshine Silver Mining & Refining Co insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Sunshine Silver Mining & Refining Co, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Ospraie Management, LLC | 10% Owner | 24,758,995 | Jun 8, 2026 | 1 |
| Anderson Dwight | 10% Owner | 24,758,995 | Jun 8, 2026 | 1 |
| Ospraie Management, Inc. | 10% Owner | 24,758,995 | Jun 8, 2026 | 1 |
| Ospraie Holding I, L.P. | 10% Owner | 24,758,995 | Jun 8, 2026 | 1 |
| Ospraie Real Assets Fund LP | 10% Owner | 24,758,995 | Jun 8, 2026 | 1 |
| Ospraie Real Assets GP LLC | 10% Owner | 24,758,995 | Jun 8, 2026 | 1 |
| GRAT Holdings LLC | 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Manul Capital Management LLC | 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Tigris Financial Group Ltd. | 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Kaplan Thomas Scott | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Electrum Global Holdings L.P. | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Electrum Group LLC | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| TEG Global GP Ltd. | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Electrum Strategic Opportunities Fund II L.P. | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Electrum Strategic Opportunities Fund II GP L.P. | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| ESOF II GP Ltd. | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Electrum Silver US II LLC | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Electrum Strategic Management LLC | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Electrum Silver US LLC | Director, 10% Owner | 78,095,918Indirect | Jun 8, 2026 | 1 |
| Muniz Quintanilla Daniel | Director | 8,929 | Jun 8, 2026 | 1 |
| Radford Lawrence P | Director | 11,429 | Jun 8, 2026 | 1 |
| Zink Paul H | Director | 8,929 | Jun 8, 2026 | 1 |
| Shepston Michelle H | General Counsel | 65Indirect | Jun 8, 2026 | 1 |
| Erfan Ali | Director | 8,929 | Jun 8, 2026 | 1 |
| Groh Douglas | Director | 143,929 | Jun 8, 2026 | 1 |
| Ebeling Nathan John | Director | 8,929 | Jun 8, 2026 | 1 |
| White Heather Eileen | Chief Executive Officer | 2,000 | Jun 8, 2026 | 1 |
| El-Erian Anna | Director | 48,929 | Jun 8, 2026 | 1 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 8, 2026 (view filing)7:58 PM ET | Jun 5 | 3 days | Ospraie Management, LLC and 5 others10% Owner | SSaleCommon Stock, par value $0.001 per share | −555.6K | $13.50 | −$7.50M | −2.2%24.8M after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Shepston Michelle HGeneral Counsel | PPurchase | +5.00K | $13.50 | +$67.5K | New position5.00K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Shepston Michelle HGeneral Counsel | PPurchase | +65 | $13.50 | +$877.5 | New position65 after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | White Heather EileenChief Executive Officer | PPurchase | +2.00K | $13.50 | +$27.0K | New position2.00K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Radford Lawrence PDirector | PPurchase | +2.50K | $13.50 | +$33.8K | +28.0%11.4K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Groh DouglasDirector | PPurchase | +10.0K | $13.50 | +$135.0K | +7.5%143.9K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | El-Erian AnnaDirector | PPurchase | +40.0K | $13.50 | +$540.0K | +448.0%48.9K after |