Merck & Co., Inc. — Director's Dealing 2010

Mar 4, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Merck & Co. Inc. (MRK)
CIK: 0000310158
Period of Report: 2010-03-02

Reporting Person: Deese Willie A (Exe V-P & Pres. MMD)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-02	Common Stock	M	10000	—	Acquired	58058.0579	Direct
2010-03-02	Common Stock	M	7650	—	Acquired	65708.0579	Direct
2010-03-02	Common Stock	F	2259	$37.27	Disposed	63449.0579	Direct
2010-03-02	Common Stock	F	2963	$37.27	Disposed	60486.0579	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-02	Restricted Stock Unit	$0	M	7650	Disposed	2010-03-02	Common Stock (7650)	Direct
2010-03-02	RSU - Leader Shares	$0	M	10000	Disposed	2010-03-02	Common Stock (10000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - 401(k) Plan	570.4009	Indirect

Footnotes

F1: Holdings include shares acquired in dividend reinvestment transactions.

F2: Includes shares acquired and dividends earned through October 1, 2009 in the MSD Employee Savings and Security Plan, a 401(k) plan.

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