X0306 4 2020-05-12 1 0001656936 MGM Growth Properties LLC MGP 0001672006 Rietbrock Michael C/O MGM GROWTH PROPERTIES LLC 6385 S. RAINBOW BOULEVARD, SUITE 500 LAS VEGAS NV 89118 1 Former Director Class A Common Shares 2020-05-12 4 S 0 12745 23.2016 D 7000 D Class A Common Shares 2020-05-12 4 S 0 5000 23.304 D 2000 D Class A Common Shares 2020-05-13 4 S 0 2000 22.61 D 0 D The reporting person's sale of Class A Common Shares reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, as amended, with the purchase of 2,000 shares at prices ranging from $24.5734 to $24.845 on March 10, 2020. No profit was realized by the reporting person in connection with the short-swing transaction. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.13 to $23.27, inclusive. The reporting person undertakes to provide to 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 sold at each separate price within the range. /s/ Andrew Hagopian III, Attorney-In-Fact 2020-05-14