MCKESSON CORP — Director's Dealing 2015

May 22, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MCKESSON CORP (MCK)
CIK: 0000927653
Period of Report: 2015-05-21

Reporting Person: Figueredo Jorge (EVP, Human Resources)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-21	Common Stock	M	8525	$118.41	Acquired	8525	Direct
2015-05-21	Common Stock	S	8525	$240.41	Disposed	0	Direct
2015-05-22	Common Stock	M	12250	$87.24	Acquired	12250	Direct
2015-05-22	Common Stock	S	12250	$239.9062	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-21	Employee Stock Options (Right-to-Buy)	$118.41	M	8525	Disposed	2020-05-21	Common Stock (8525)	Direct
2015-05-22	Employee Stock Options (Right-to-Buy)	$87.24	M	12250	Disposed	2019-05-22	Common Stock (12250)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	269.5971	Indirect

Footnotes

F1: Option exercise and sale pursuant to a previously adopted plan, intended to comply with Rule 10b5-1(c).

F2: This option granted 5/21/2013, vests 25% over four years commencing on the 1st anniversary of the grant date.

F3: This option granted 5/22/2012, vests 25% over four years commencing on the 1st anniversary of the grant date.