X0306 4 2021-06-02 0 0001644406 Hostess Brands, Inc. TWNK 0001864086 O'Leary Daniel James C/O HOSTESS BRANDS, INC. 7905 QUIVIRA ROAD LENEXA KS 66215 0 1 0 0 See Remarks Restricted Stock Units 2021-06-02 4 A 0 12870 0.00 A 12870 D Restricted Stock Units 2021-06-02 4 A 0 19305 0.00 A 32175 D In connection with the reporting person's hiring as Executive Vice President, Chief Growth Officer of Hostess Brands, Inc. (the "Company"), the Company has granted two awards of restricted stock units to the reporting person. Each restricted stock unit represents the right to receive, upon vesting, one share of Class A Common Stock. This award will vest over three years in equal or nearly equal installments on June 2 of each of 2022, 2023 and 2024, assuming continued employment through the applicable vesting date. This award was a sign-on equity award with a two-year vesting period. These restricted stock units will vest in equal or nearly equal installments on June 2 of each of 2022 and 2023, assuming continued employment through the applicable vesting date. Executive Vice President, Chief Growth Officer /s/ Jolyn J. Sebree, Attorney-in-Fact 2021-06-04