X0306 4 2014-02-11 0000310158 Merck & Co. Inc. MRK 0001376841 Schechter Adam H ONE MERCK DRIVE WHITEHOUSE STATION NJ 08889-0100 1 EVP & Pres-Global Human Health Common Stock 2014-02-11 4 M 0 12500.0000 48.2400 A 12500.0000 D Common Stock 2014-02-11 4 M 0 3000.0000 45.4100 A 15500.0000 D Common Stock 2014-02-11 4 M 0 2500.0000 47.3900 A 18000.0000 D Common Stock 2014-02-11 4 S 0 18000.0000 55.6075 D 0.0000 D Common Stock - 401(k) Plan 2014-02-11 4 I 0 4040.3746 55.7000 D 0.0000 I By 401(k) Common Stock 70507.9747 I By Trust Stock Option (right to buy) 48.2400 2014-02-11 4 M 0 12500.0000 0.0000 D 2005-02-27 2014-02-26 Common Stock 12500.0000 0.0000 D Stock Option (right to buy) 47.3900 2014-02-11 4 M 0 2500.0000 0.0000 D 2005-05-03 2014-05-02 Common Stock 2500.0000 0.0000 D Stock Option (right to buy) 45.4100 2014-02-11 4 M 0 3000.0000 0.0000 D 2005-08-02 2014-08-01 Common Stock 3000.0000 0.0000 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.52 to $55.72, inclusive. The reporting person undertakes to provide to Merck & Co., Inc., any security holder of Merck & Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in this footnote. Includes 97.2259 shares acquired under the Merck U.S. Savings Plan, a 401(k) plan, since the date of the reporting person's last ownership report. Holdings include shares acquired in dividend reinvestment transactions. Katie Fedosz as Attorney-in-Fact for Adam H. Schechter 2014-02-13