McKesson announces Hammergen’s retirement, chooses successor – Drug Store News



“McKesson has announced the retirement of its chairman and CEO John Hammergen, effective March 31, 2019. The company’s board has unanimously elected Brian Tyler, who currently is president and COO of the San Francisco-based company, to succeed him as CEO, effective April 1, 2019. Edward Mueller, McKesson’s lead independent director, will become chairman, also effective April 1, 2019.”

Read the full source article: McKesson announces Hammergen’s retirement, chooses successor – Drug Store News


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