McKesson Announces Preliminary Voting Results from 2016 Annual Meeting of Stockholders

July 27, 2016

All Directors Reelected, Advisory Vote on Executive Compensation Approved, All Board Vote Recommendations Supported

McKesson Corporation (NYSE:MCK) today announced preliminary voting results from its Annual Meeting of Stockholders, held earlier today in Richmond, Virginia. All Board members were reelected, the advisory vote on executive compensation was approved and all Board vote recommendations were supported.

“We appreciate the support shown by our shareholders today and the thoughtful way they have engaged with us as they carefully considered the proposals,” said John H. Hammergren, chairman and chief executive officer, McKesson Corporation. “We are committed to responding to shareholder feedback and delivering significant long-term value for our investors.”

The shareholder vote announced today is considered preliminary until the final results are tabulated and certified by the independent inspector of election. The final results will be reported on a Form 8-K that will be filed with the Securities and Exchange Commission shortly.

About McKesson Corporation

McKesson Corporation, currently ranked 5th on the FORTUNE 500, is a healthcare services and information technology company dedicated to making the business of healthcare run better. We partner with payers, hospitals, physician offices, pharmacies, pharmaceutical companies, and others across the spectrum of care to build healthier organizations that deliver better care to patients in every setting. McKesson helps its customers improve their financial, operational, and clinical performance with solutions that include pharmaceutical and medical-surgical supply management, healthcare information technology, and business and clinical services. For more information, visit us at www.mckesson.com.

Contact:

McKesson Corporation
Investors and Financial Media:
Craig Mercer, 415-983-8391
Craig.Mercer@mckesson.com
or
General and Business Media:
Kris Fortner, 415-983-8352
Kris.Fortner@mckesson.com