Guaranty Federal Bancshares Inc. announced that Don M. Gibson, Chairman of the Board, will be retiring as a Director of the company and Guaranty Bank after reaching the company's mandatory retirement age of 72 years. Mr. Gibson's retirement will be effective at the expiration of his current term prior to the call to order of the company's 2016 annual meeting of stockholders to be held on May 25, 2016. Mr. Gibson has served as a Director for the company and the Bank since February 2002 and has held the position of Chairman since March 2005.