Merck announced that the independent members of the Merck Board of Directors have appointed Thomas H. Glocer as independent lead director effective immediately. Mr. Glocer has served on the Merck Board of Directors since 2007. He has extensive management, operational, technology and international business expertise, including his history of accomplishment and executive leadership while chief executive officer and a director of Thomson Reuters Corporation. Mr. Glocer also serves as independent lead director at Morgan Stanley.