 CHICAGO--BUSINESS WIRE--Byline Bancorp, Inc. NYSE: BY announced today that its Board of Directors has approved a new stock repurchase program that authorizes the Company to repurchase up to 1.25 million shares of the Companys outstanding common stock. The shares authorized to be repurchased represent approximately 3.2 of the Companys currently outstanding common stock. The new program will be effective January 1, 2021 and be in effect until December 31, 2022. Under its existing stock rep 