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

Mar 5, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Merck & Co. Inc. ((MRK))
CIK: 0000310158
Period of Report: 2010-03-04

Reporting Person: BARSHAY STANLEY F (ExVP&PresConsHlthCare)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-04	Common Stock	M	20000	$21.21	Acquired	91589	Direct
2010-03-04	Common Stock	S	2300	$36.995	Disposed	89289	Direct
2010-03-04	Common Stock	S	2600	$37.00	Disposed	86689	Direct
2010-03-04	Common Stock	S	1600	$37.005	Disposed	85089	Direct
2010-03-04	Common Stock	S	300	$37.0075	Disposed	84789	Direct
2010-03-04	Common Stock	S	2200	$37.01	Disposed	82589	Direct
2010-03-04	Common Stock	S	800	$37.015	Disposed	81789	Direct
2010-03-04	Common Stock	S	200	$37.02	Disposed	81589	Direct
2010-03-04	Common Stock	S	10000	$37.10	Disposed	71589	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-04	Employee Stock Option 2003/07/02 (right to buy)	$21.21	M	20000	Disposed	2013-07-01	Common Stock (20000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1176	Indirect