X0306 4 2021-02-21 0000789570 MGM Resorts International MGM 0001494424 SANDERS COREY IAN 3600 LAS VEGAS BLVD., S. LAS VEGAS NV 89109 1 CHIEF OPERATING OFFICER Common Stock $.01 Par Value ND 2021-02-21 4 M 0 3067 0 A 448331 D Common Stock $.01 Par Value ND 2021-02-21 4 F 0 772 36.42 D 447559 D Common Stock $.01 Par Value ND 2021-02-22 4 S 0 40000 38.5193 D 407559 D Common Stock $.01 Par Value ND 36465 I By CIS Trust Restricted Stock Units 2021-02-21 4 M 0 3067 0 D 2020-02-21 2023-02-21 Common Stock $.01 Par Value ND 3067 5578 D The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.07 to $38.57, 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. Restricted Stock Units (RSUs) granted under the MGM Resorts International Amended and Restated 2005 Omnibus Incentive Plan. Each RSU represents the right to receive one share of MGM Resorts International common stock. Any fractional shares are paid in cash upon settlement. The RSUs are fully vested. Delivery of shares is made in four equal annual installments commencing on the first anniversary of the grant date. /s/ Jessica Cunningham, Attorney-In-Fact 2021-02-23