William David Brock Koenig, Director at Red Moon Potash, holds 425.00K shares in Vulcan Minerals (Ticker: TSE:VUL), holds 177.58K shares in Red Moon Potash (Ticker: TSE:RMK). Most recently, William David Brock Koenig Sold ― shares of Vulcan Minerals on Nov 13, 2019 for an estimated value of 27.54K.