X0306 4 2020-09-15 0 0000893949 MEDNAX, INC. MD 0001549694 Andreano Dominic J 1301 CONCORD TERRACE SUNRISE FL 33323 0 1 0 0 EVP, General Counsel and Secy Common Stock 2020-09-15 4 S 0 22000 18.9284 D 53708 D The price reported in Column 4 is a weighted average price. These shares were sold in fifty-one (51) separate transactions with prices ranging from $18.76 to $19.28 for an average weighted sale price of $18.9284. 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 section. Dominic J. Andreano 2020-09-17