Elizabeth Williams, Former at Aptose Biosciences, holds 8.71K shares in Aptose Biosciences (Ticker: APTO), holds 20.00K shares in Satellos Bioscience (Ticker: MSCLF), holds 15.30K shares in Medicenna Therapeutics Corp (Ticker: TSE:MDNA). Most recently, Elizabeth Williams ― shares of Aptose Biosciences on ― for an estimated value of ―.