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.
Holders of 5% or more of SSMR
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Sunshine Silver Mining & Refining Co, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Electrum Silver US LLC | 13G | 62.90%96.1M shares | New | Aug 7, 20261 filing | Aug 7, 2026 | SEC |
| Ospraie Real Assets Fund LP | 13G | 17.30%24.8M shares | New | Aug 10, 20261 filing | Aug 10, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on Sunshine Silver Mining & Refining Co, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 10, 20264:24 PM ET | Ospraie Real Assets Fund LPand 5 others | 13G | 17.30%24.8M shares | New | Jun 30, 2026 | SEC |
| Aug 7, 20264:15 PM ET | Electrum Silver US LLCand 12 others | 13G | 62.90%96.1M shares | New | Jun 30, 2026 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Sunshine Silver Mining & Refining Co shares.
No Form 144 notices for Sunshine Silver Mining & Refining Co are on file.