X0306 4 2020-04-01 0 0000701374 Six Flags Entertainment Corp SIX 0001514719 Russ Leonard A C/O SIX FLAGS ENTERTAINMENT CORPORATION 924 AVENUE J EAST GRAND PRAIRIE TX 75050 0 1 0 0 Interim CFO Common Stock, par value $0.025 per share 2020-04-01 4 A 0 6135 0 A 73176 D The restricted stock grant units have a two year vesting schedule, with 50% vesting on the first anniversary of the grant date and the remaining 50% vesting on the second anniversary of the grant date. /s/ Leonard A. Russ 2020-04-03