Sienko David C
- SEC CIK
- 0001481905
In the past year, 1 open-market sale filing worth $4.03M and no purchases.
Current role at each company
- HL Hecla Mining CoSr. VP, GC & Secretaryas of Jun 24, 2026
- Hecla LtdSR. VP & General Counselas of Aug 21, 2024
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $4.03M
- 1 filing
- Net
- −$4.03M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Sienko David C as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
HL Hecla Mining Co
Sr. VP, GC & Secretary3 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 19, 2025 (view filing) | Dec 17 | 2 days | Sienko David CSr. VP, GC & Secretary | SSale | −207.6K | $19.42 | −$4.03M | −18.6%906.4K after | |
| Feb 26, 2025 (view filing) | Feb 26 | Same day | Sienko David CVP - General Counsel & Secy. | SSale | −21.8K | $5.18 | −$113.1K | −2.3%914.6K after | |
| Jun 25, 2024 (view filing) | Jun 25 | Same day | Sienko David CVP - General Counsel | SSale | −14.6K | $4.91 | −$71.5K | −1.4%996.1K after |