Sandra Milligan is a Director on Gossamer Bio’s Board of Directors. Since March 2024, Dr. Milligan has served as President of Aspira Women’s Health, a bio-analytical based women’s health company focused on the development of gynecologic disease diagnostic tools. Previously, from 2020 to 2024, Dr. Milligan has served as the Head of Research and Development of Organon & Co. and as Merck & Co.’s Senior Vice President and Head of Global Regulatory Affairs and Clinical Safety, from 2015 to 2020. Previously, from 2012 to 2015, she served as Vice President of Product Development Regulatory for Genentech, Inc., and from 2002 to 2012, she was at Amgen Inc. in positions of increasing responsibility across legal and regulatory affairs functions. Dr. Milligan served in the United States Army Medical Corps from 1987 to 1994. Dr. Milligan was on the Board of Directors of the Drug Information Association, or DIA, from 2011 to 2017, including serving as chair, and is now a DIA fellow. Dr. Milligan received a B.S. in Biology and a B.A. in Psychology from the University of California, Irvine. Additionally, she is a graduate of George Washington University School of Medicine and received a J.D. from the Georgetown University Law Center.