McKesson Corporation (MCK) recently announced its plan to sell Rexall Pharmacy Group, the Canadian drugstore chain that the company bought for about $2.2 billion seven years ago.McKesson bought the business in 2016 from Katz Group to solidify its position in Canada's pharmaceutical supply chain.Price PerformanceFor the past six months, MCK’s shares have rallied 19.9% against the industry’s decline of 2.4%. The S&P 500 increased 3.9% in the same time frame.Image Source: Zacks Investment ResearchMore on the N ...