Five Prime Therapeutics, Inc. announced that the company’s founder, Lewis T. Rusty Williams has resigned as a member of the Five Prime Board of Directors to focus on his role as Chief Executive Officer of Walking Fish Therapeutics, a start-up company that he co-founded, and other activities supporting life science start-up companies. Following Dr. Williams' departure, the Five Prime Board will be comprised of seven members, including six independent directors. In mid-2019, the company appointed two new independent directors to its Board, Carol Schafer and Lori Lyons-Williams.