Groh Douglas (CIK 2132385) reported 3 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-07-01). Recent activity: Buy SIND (10,417 shares), Buy SSMR (8,929 shares), Buy SSMR (10,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | Sinda Ltd. (SIND) | Director | Buy | 10,417 | $0 |
| 2026-06-08 | Sunshine Silver Mining & Refining Co (SSMR) | Director | Buy | 8,929 | $0 |
| 2026-06-08 | Sunshine Silver Mining & Refining Co (SSMR) | Director | Buy | 10,000 | $135,000 |
Source: SEC Form 4 filings · as of 2026-07-01