McKesson Chairman and CEO John H. Hammergren will retire, effective March 31, 2019.
Here are four things to know:
1. McKesson President and COO Brian Tyler, PhD, will succeed Mr. Hammergren as CEO, effective April 1, 2019. Dr. Tyler will continue to serve as president.
2. Edward Mueller, who currently serves as lead independent director of McKesson's board of directors, will succeed Mr. Hammergren as an independent board chairman, effective April 1, 2019.
3. Since Mr. Hammergren became CEO in 2001,, McKesson more than quadrupled revenues to $208 billion, expanded into global markets and advanced to number six on the Fortune 500.
4. Harvard Business Review named Mr. Hammergren as one of 100 "Top Performing CEOs in the World."