X0306 4 2022-01-05 0001825480 Poshmark, Inc. POSH 0001839146 McDonald John Michael C/O POSHMARK, INC. 203 REDWOOD SHORES PARKWAY REDWOOD CITY CA 94065 1 Chief Operating Officer Class A Common Stock 2022-01-05 4 S 0 3964 15.969 D 83286 D Class A Common Stock 2022-01-05 4 C 0 3964 0 A 87250 D Class B Common Stock 2022-01-05 4 C 0 3964 0 D Class A Common Stock 3964 33173 D Represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of RSUs. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date. /s/ Evan Ferl, Attorney-in-Fact 2022-01-06