First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund Declares Quarterly Distribution, Payable on June 30, 2015

First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund declared quarterly distribution of $0.1205 per share, payable on June 30, 2015 to the shareholders record on June 26, 2015, and expected ex-dividend date is June 24, 2015.