 FLORHAM PARK, N.J., Aug. 05, 2021 GLOBE NEWSWIRE -- Phathom Pharmaceuticals, Inc. Nasdaq: PHAT, a late clinical-stage biopharmaceutical company focused on developing and commercializing novel treatments for gastrointestinal diseases, announced today the sad news that its chairman and founder, Dr. Tachi Yamada, passed away suddenly at his Seattle, Washington home on August 4. 