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: Do Cuong V (EVP & Chief Strategy Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-06	Stock Option (right to buy)	$44.9800	A	64412.0000	Acquired	2023-05-05	Common Stock (64412.0000)	Direct

Footnotes

F1: The option vests in three equal annual installments beginning May 6, 2014.