X0306 4 2020-02-08 0 0000701374 Six Flags Entertainment Corp SIX 0001498596 Petit Brett C/O SIX FLAGS ENTERTAINMENT CORPORATION 924 AVENUE J EAST GRAND PRAIRIE TX 75050 0 1 0 0 Senior VP - Marketing Common Stock, par value $0.025 per share 2020-02-08 4 A 0 297 0 A 158665 D Grant of shares of common stock pursuant to dividend equivalent rights under Issuer's Long-Term Incentive Plan. The number of shares of common stock granted was based on the conversion of cash dividend equivalents accumulated. Includes 50 shares of common stock acquired pursuant to the Issuer's Employee Stock Purchase Plan since the last-filed Form 4. /s/ Brett Petit 2020-02-11