X0306 4 2021-07-18 0 0001592058 Party City Holdco Inc. PRTY 0001748006 Weston Bradley Morgan C/O PARTY CITY HOLDCO INC. 80 GRASSLANDS ROAD ELMSFORD NY 10523 1 1 0 0 President and CEO Common Stock, par value $0.01 per share ("Common Stock") 2021-07-18 4 F 0 83044 8.26 D 2783623 D Common Stock 2021-07-27 4 F 0 83044 8.53 D 2700579 D Common Stock 2021-11-02 4 F 0 83044 8.34 D 2617535 D Common Stock 2021-12-09 4 F 0 83044 6.05 D 2534491 D Shares withheld by the Issuer to satisfy tax withholding obligations /s/ Ian Heller, attorney-in-fact 2021-12-10