Chief Medical Officer Jamil Khurram sold $88,888 worth of shares (16,250 units at $5.47), sold $573,622 worth of shares (104,867 units at $5.47), exercised 83,000 shares at a strike of $2.35 and exercised 16,250 shares at a strike of $1.23, decreasing direct ownership by 83% to 4,479 units (SEC Form 4)