 SOUTH SAN FRANCISCO, Calif., March 22, 2021 PRNewswire -- Sutro Biopharma, Inc. NASDAQ: STRO, a clinical-stage drug discovery, development and manufacturing company focused on the application of precise protein engineering and rational design to create next-generation cancer and autoimmune therapeutics, today announced the strengthening of key leadership roles including the promotion of David Pauling, J.D. 