Sienko David C

Sienko David C is listed in filings as S. Vice President at Hecla Mining Company Common Stock. This profile follows SEC Form 4 activity through Mar 4, 2026, including sale activity. Recent filings connect the profile to Hecla Mining Company Common Stock (HL). The current snapshot covers public activity from Jun 25, 2024 to Mar 4, 2026. Reported amounts are shown as $179.7K to $350.0K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.