On January 26, 2017, the Board of Directors of Wintrust Financial Corporation appointed William J. Doyle as a director of the Company, effective February 1, 2017, to fill the vacancy created by the bylaws amendment.

On January 26, 2017, the Board of Directors amended the company's Amended and Restated By-Laws, effective immediately. The amendment increases the size of the Board of Directors from 12 directors to 13 directors.