Rita A. Karachun is a businessperson who has been at the head of 5 different companies. Presently, she is Senior Vice President-Finance & Global Controller at Merck & Co., Inc. and Chief Executive Officer & Director at Immune Design Corp., President & Director at ArQule, Inc., President at Acceleron Pharma, Inc. and President & Director at GlycoFi, Inc. (which are all subsidiaries of Merck & Co., Inc.).

In her past career Rita A. Karachun occupied the position of President for Inspire Pharmaceuticals, Inc.