144 0001456065 XXXXXXXX LIVE 0001484778 ThredUp Inc. 001-40249 969 BROADWAY SUITE 200 OAKLAND CA 94607 415-402-5202 TRINITY VENTURES X LP Shareholder Class A Merrill

555 California Street Floor 18 San Francisco CA 94104

220860 410799.60 78885427 05/07/2024 NASDAQ Class A 01/08/2018 Private Placement Issuer N 220860 01/08/2018 Cash N Trinity Ventures X, LP

325 Sharon Park Dr Menlo Park CA 94025

Class A 05/03/2024 295 531.00 Trinity X Entrepreneurs Fund, LP

325 Sharon Park Dr Menlo Park CA 94025

Class A 05/03/2024 3 5.40 TRINITY X SIDE-BY-SIDE FUND, LP

325 Sharon Park Dr Menlo Park CA 94025

Class A 05/03/2024 2 3.60 Trinity Ventures X, LP

325 Sharon Park Dr, Menlo Park CA 94025

Class A 05/06/2024 108264 207314.73 Trinity X Entrepreneurs Fund, LP

325 Sharon Park Dr, Menlo Park CA 94025

Class A 05/06/2024 1072 2052.77 TRINITY X SIDE-BY-SIDE FUND, LP

325 Sharon Park Dr, Menlo Park CA 94025

Class A 05/06/2024 598 1145.11 05/07/2024 03/15/2024 Lyle McCulloch