Updated Jul 16, 2026
Sienko David C has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
David C. Sienko serves as the Senior Vice President, General Counsel, and Secretary at Hecla Mining Company. He has been involved in the company's legal and corporate governance matters.
| Role | Sr. VP, GC & Secretary |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-25 | HL | HECLA MINING CO/DE/ | J — Other acquisition / disposition | 17.4K | $0.00 | |
| 2026-06-25 | HL | HECLA MINING CO/DE/ | A — Grant or award | 22.7K | $15.98 | $363K |
| 2026-06-25 | HL | HECLA MINING CO/DE/ | F — Tax withholding / forfeiture | 24.0K | $15.98 | $383K |
| 2026-03-04 | HL | HECLA MINING CO/DE/ | F — Tax withholding / forfeiture | 7.3K | $24.63 | $180K |
| 2026-03-04 | HL | HECLA MINING CO/DE/ | M — Option exercise | 23.9K | $0.00 | |
| 2025-06-23 | HL | HECLA MINING CO/DE/ | J — Other acquisition / disposition | 15.3K | $0.00 | |
| 2025-06-23 | HL | HECLA MINING CO/DE/ | A — Grant or award | 60.1K | $5.82 | $350K |
| 2025-06-23 | HL | HECLA MINING CO/DE/ | F — Tax withholding / forfeiture | 13.8K | $5.82 | $80K |
David C. Sienko serves as the Senior Vice President, General Counsel, and Secretary at Hecla Mining Company. He has been involved in the company's legal and corporate governance matters.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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