X0306 4 2022-05-25 1 0001825480 Poshmark, Inc. POSH 0001021944 Temasek Holdings (Private) Ltd 60B ORCHARD ROAD, #06-18 TOWER 2, THE ATRIUM@ORCHARD SINGAPORE U0 238891 SINGAPORE 0 0 1 0 0001512449 Tembusu Capital Pte. Ltd. 60B ORCHARD ROAD, #06-18 TOWER 2 THE ATRIUM@ORCHARD SINGAPORE U0 238891 SINGAPORE 0 0 1 0 0001568354 Thomson Capital Pte. Ltd. 60B ORCHARD ROAD, #06-18 TOWER 2 THE ATRIUM@ORCHARD SINGAPORE U0 238891 SINGAPORE 0 0 1 0 0001767731 Anderson Investments Pte. Ltd. 60B ORCHARD ROAD, #06-18 TOWER 2 THE ATRIUM@ORCHARD SINGAPORE U0 238891 SINGAPORE 0 0 1 0 Class A common stock 2022-05-25 4 S 0 2000000 10.65 D 3971646 I See Footnote Anderson Investments Pte. Ltd ("Anderson") is a direct wholly-owned subsidiary of Thomson Capital Pte. Ltd. ("Thomson"), which in turn is a direct wholly-owned subsidiary of Tembusu Capital Pte. Ltd. ("Tembusu"), which in turn is a direct wholly-owned subsidiary of Temasek Holdings (Private) Limited ("Temasek"). Accordingly, Thomson, Tembusu and Temasek may be deemed to beneficially own the shares of Class A common stock directly owned by Anderson. Temasek Holdings (Private) Limited, By: /s/ Andrew Ang Lye Whatt, Authorised Signatory 2022-05-27 Tembusu Capital Pte. Ltd., By: /s/ Gregory Tan, Director 2022-05-27 Thomson Capital Pte. Ltd., By: /s/ Poy Weng Chuen, Director 2022-05-27 Anderson Investments Pte. Ltd., By: /s/ Poy Weng Chuen, Director 2022-05-27