DeWITT, N.Y. — Community Financial System, Inc. (NYSE: CBU), and its banking subsidiary, Community Bank, N.A., have appointed Marya Burgio Wlos as executive VP and chief financial officer (CFO) of both entities, effective March 31.

Wlos will succeed Joseph E. Sutaris, who is retiring from the role. He will remain with the company and the bank through July 1, working closely with Wlos during the transition period.

“We are very excited to welcome Marya to our executive management team,” Community Financial President/CEO Dimitar A. Karaivanov said in the company’s announcement. “Marya is an accomplished leader with significant financial experience and industry knowledge, and we believe she will play a critical role in leading our financial team and working with the rest of executive management team to execute our strategic plan going forward.”

Wlos has served as managing director and COO of investment bank and M&T Bank since January 2021. Prior to that, she served as head of management accounting, finance at M&T Bank from September 2018 through January 2021, and as head of trading relationship management, UBS asset management at UBS AG from November 2013 through August 2018. Wlos also worked in various financial roles at Citadel LLC from April 2008 through September 2012, and at Bank of America from January 2007 to April 2008.

“We also extend our deepest gratitude and appreciation to Joe Sutaris for his years of dedicated service to the company and the bank,” Karaivanov said. “Joe’s contributions and commitment have played an important role in the continued success of the company and the bank during his tenure as chief financial officer, and we wish him all the best on his well-deserved retirement.”

Community Financial System includes Community Bank, with more than $16 billion in assets and 200 branches in New York, Pennsylvania, Vermont, and Massachusetts; Benefit Plans Administrative Services, Inc., an employee-benefits administration, trust, and actuarial consulting firm; OneGroup NY, Inc., insurance agency; and a wealth-management operating unit.