David C Sienko

CIK 1481905 · S. Vice President, GC & Secy. · last filed 2026-03-04

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$50.05M

Companies

2

Total Filings

48

Lifetime Open-Market Net

-$5.49M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
HLpB S. Vice President, GC & Secy. 786,261 $63.65 $50.05M -$5.49M 46 2026-03-04
HECLA MINING CO/DE/ (HLpC) Delisted Vice President & Gen. Counsel 27,498 $0 1 2010-05-06

Recent Filings · Page 5 of 5

48 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2014-08-28 HLpB Mixed −22,550 $0 EDGAR
2014-03-05 HLpB Grant (A) +65,175 $0 EDGAR
2013-06-25 HLpB Grant (A) +52,560 $0 EDGAR
2012-06-28 HLpB Grant (A) +33,190 $0 EDGAR
2011-06-28 HLpB Grant (A) +20,028 $0 EDGAR
2011-05-16 HLpB Tax (F) −5,994 $0 EDGAR
2011-03-02 HLpB Tax (F) −1,713 -$17.6K EDGAR
2010-05-06 HECLA MINING CO/DE/ (HLpC) Delisted Grant (A) +17,498 $0 EDGAR
Showing 4148 of 48
Page 5 of 5
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.