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

295245 510773.85 85660389 12/02/2024 NASDAQ Class A 01/08/2018 Private Placement Issuer N 295245 01/08/2018 Cash N Trinity Ventures X, LP

325 Sharon Park Dr Menlo Park CA 94025

Class A 11/29/2024 197 348.69 Trinity Entrepreneurs' Fund, LP

325 Sharon Park Dr Menlo Park CA 94025

Class A 11/29/2024 2 3.54 Trinity X Side-by-Side Fund, LP

325 Sharon Park Dr Menlo Park CA 94025

Class A 11/29/2024 1 1.77 12/02/2024 03/15/2024 Lyle McCulloch