Proteostasis Therapeutics Reports Third Quarter 2020 Financial Results PR Newswire BOSTON, Nov. 16, 2020 BOSTON , Nov. 16, 2020 /PRNewswire/ -- Proteostasis Therapeutics, Inc. (Nasdaq:PTI), a clinical stage biopharmaceutical company, today announced financial results for the third quarter ended September 30, 2020 . In August 2020 , Proteostasis and Yumanity Therapeutics, Inc. ("Yumanity"), announced the two companies had entered into a definitive merger agreement. If the merger is completed,...