Merck & Co., Inc. - Director's Dealing 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Merck & Co. Inc. (MRK)
CIK: 0000310158
Period of Report: 2013-05-06

Reporting Person: GRADDICK WEIR MIRIAN M (Exe V-P, HR)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-07	Common Stock	M	22096.0000	$0.0000	Acquired	86703.7890	Direct
2013-05-07	Common Stock	F	11458.0000	$44.9800	Disposed	75245.7890	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-06	Stock Option (right to buy)	$44.9800	A	109501.0000	Acquired	2023-05-05	Common Stock (109501.0000)	Direct
2013-05-07	Restricted Stock Unit	$	M	22096.0000	Disposed	2013-05-07	Common Stock (22096.0000)	Direct

F1: Holdings include shares acquired in dividend reinvestment transactions.

F2: The option vests in three equal annual installments beginning May 6, 2014.

F3: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.