MCKESSON CORP — Director's Dealing 2015

Dec 2, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MCKESSON CORP (MCK)
CIK: 0000927653
Period of Report: 2015-12-01

Reporting Person: HAMMERGREN JOHN H (Director, Chairman, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-12-01	Common Stock	M	101833	$40.46	Acquired	101833	Direct
2015-12-01	Common Stock	S	101833	$190.0648	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-12-01	Employee Stock Option (Right-to-buy)	$40.46	M	101833	Disposed	2019-05-26	Common Stock (101833)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	590256.925	Indirect
Common Stock	4125.695	Indirect

Footnotes

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

F2: Represents 489,785.925 shares held under the Hammergren Family Trust; 12,554 held in the JHH 2010 GRAT #8; 12,554 shares in the JHH 2010 GRAT #9; 12,554 held in the JHH 2010 GRAT #10; 12,555 held in the JHH 2010 GRAT #11; 12,563 in the WLH 2010 GRAT #8; 12,563 in the WLH 2010 GRAT #9; 12,564 in the WLH 2010 GRAT #10; 12,564 in the WLH 2010 GRAT #11.

F3: This option granted 05/26/2009 vested 25% per year, commencing on the 1st anniversary of the grant date.