Robert Duncan Henderson, President & Chief Executive Officer at Amerigo Resources, holds 149.24K shares in Great Panther Silver (Ticker: GPLDF), holds 1.01M shares in Amerigo Resources (Ticker: ARREF), holds 333.33K shares in BQE Water (Ticker: TSE:BQE). Most recently, Robert Duncan Henderson Bought ― shares of Great Panther Silver on Aug 26, 2021 for an estimated value of 11.75K.