Sienko David C (CIK 1481905) reported 19 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-24). Recent activity: Sell HL (23,973 shares), Buy HL (22,724 shares), Buy HL (17,354 shares), Buy HL (23,881 shares), Sell HL (7,294 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-24 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Sell | 23,973 | $383,089 |
| 2026-06-24 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 22,724 | $363,130 |
| 2026-06-24 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 17,354 | $0 |
| 2026-03-04 | HECLA MINING CO/DE/ (HL) | S. Vice President, GC & Secy. | Buy | 23,881 | $0 |
| 2026-03-04 | HECLA MINING CO/DE/ (HL) | S. Vice President, GC & Secy. | Sell | 7,294 | $179,651 |
| 2025-12-19 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Sell | 207,553 | $4.0M |
| 2025-12-19 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 16,287 | $0 |
| 2025-07-01 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Sell | 13,768 | $80,130 |
| 2025-07-01 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 60,137 | $349,997 |
| 2025-07-01 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 15,258 | $0 |
| 2025-06-26 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Sell | 13,768 | $80,130 |
| 2025-06-26 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 60,137 | $349,997 |
| 2025-06-26 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 15,258 | $0 |
| 2025-06-25 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Sell | 13,768 | $80,130 |
| 2025-06-25 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 60,137 | $349,997 |
| 2025-06-25 | HECLA MINING CO/DE/ (HL) | Sr. VP, GC & Secretary | Buy | 15,258 | $0 |
| 2025-02-26 | HECLA MINING CO/DE/ (HL) | VP - General Counsel & Secy. | Buy | 45,501 | $0 |
| 2025-02-26 | HECLA MINING CO/DE/ (HL) | VP - General Counsel & Secy. | Sell | 21,826 | $113,059 |
| 2025-02-26 | HECLA MINING CO/DE/ (HL) | VP - General Counsel & Secy. | Buy | 15,258 | $0 |
Source: SEC Form 4 filings · as of 2026-06-24