Herbert Abramson, Director, Ten Percent Owner at Aptose Biosciences, holds 8.99M shares in Aptose Biosciences (Ticker: APTO), holds 54.86M shares in Advantex Marketing International (Ticker: TSE:ADX), holds 8.80M shares in Vulcan Minerals (Ticker: TSE:VUL). Most recently, Herbert Abramson ― shares of Aptose Biosciences on ― for an estimated value of ―.