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

May 8, 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: PERLMUTTER ROGER M (Exe V-P & Pres, MRL)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-06	Restricted Stock Unit	$	A	44464.0000	Acquired	2016-05-06	Common Stock (44464.0000)	Direct
2013-05-06	Stock Option (right to buy)	$44.9800	A	225443.0000	Acquired	2023-05-05	Common Stock (225443.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	25000.0000	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.

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