CHICAGO–(BUSINESS WIRE)–Byline Bancorp, Inc. (“Byline” or the “Company”) (NYSE: BY), the parent company of Byline Bank (“Byline Bank”), today announced three executive leadership appointments made as part of the Bank’s ongoing succession planning process. Sean H. McGuire has been named Executive Vice President and Chief Commercial Banking Officer, Scott E. Hawthorne has been named Executive Vice President and Chief Credit Officer, and Darrin Bacon has been named Executive Vice President and H