David C. Sienko

Companies

• Hecla MiningVice President & Gen. Counsel May 6, 2010 to now¹
• Hecla MiningGeneral counsel Feb 2, 2010 to now²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Hecla Mining HL951,865 shares³$14.8M at $15.56Jun 22, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 22, 2026Other 17,354 shares of Hecla Mining³
• Jun 22, 2026Granted 22,724 shares at $15.98 of Hecla Mining³
• Jun 22, 2026Shares withheld for tax 23,973 shares at $15.98 of Hecla Mining³
• Mar 2, 2026Shares withheld for tax 7,294 shares at $24.63 of Hecla Mining⁴
• Mar 2, 2026Exercised options 23,881 shares of Hecla Mining⁴
• Dec 18, 2025Other 16,287 shares of Hecla Mining⁵
• Dec 17, 2025Sold 207,553 shares at $19.42 of Hecla Mining⁵
• Jun 23, 2025Other 15,258 shares of Hecla Mining⁶
• Jun 23, 2025Other 15,258 shares of Hecla Mining⁷
• Jun 23, 2025Other 15,258 shares of Hecla Mining⁸
• Jun 23, 2025Granted 60,137 shares at $5.82 of Hecla Mining⁶
• Jun 23, 2025Granted 60,137 shares at $5.82 of Hecla Mining⁷
• Jun 23, 2025Granted 60,137 shares at $5.82 of Hecla Mining⁸
• Jun 23, 2025Shares withheld for tax 13,768 shares at $5.82 of Hecla Mining⁶
• Jun 23, 2025Shares withheld for tax 13,768 shares at $5.82 of Hecla Mining⁷
• Jun 23, 2025Shares withheld for tax 13,768 shares at $5.82 of Hecla Mining⁸
• Feb 26, 2025Sold 21,826 shares at $5.18 of Hecla Mining⁹
• Feb 24, 2025Other 15,258 shares of Hecla Mining⁹
• Feb 24, 2025Granted 45,501 shares of Hecla Mining⁹
• Aug 20, 2024Other 13,351 shares of Hecla Mining¹⁰
• Aug 20, 2024Other 13,351 shares of CIK 1581160¹¹
• Aug 20, 2024Granted 5,092 shares at $6.01 of Hecla Mining¹⁰
• Aug 20, 2024Granted 5,092 shares at $6.01 of CIK 1581160¹¹
• Jun 25, 2024Sold 14,559 shares at $4.91 of Hecla Mining¹²
• Jun 21, 2024Other 12,390 shares of Hecla Mining¹²