X0306 4 2017-05-05 0 0000893949 MEDNAX, INC. MD 0001396538 Kadre Manuel 1301 CONCORD TERRACE SUNRISE FL 33323 1 0 0 0 Common Stock 2017-05-05 4 P 0 21704 55.7887 A 111255 D The price reported in Column 4 is a weighted average price. These shares were purchased in seventy-four (74) separate transactions with prices ranging from $55.69 to $55.94 for an average weighted purchase price of $55.7887. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Dominic J. Andreano, Attorney-in-Fact 2017-05-08