X0306 4 2021-08-06 0 0001378950 CarParts.com, Inc. PRTS 0001761840 Peker Lev 2050 W. 190TH STREET, SUITE 400 TORRANCE CA 90504 1 1 0 0 Chief Executive Officer Common Stock 2021-08-06 4 S 0 50000 19.75 D 1018634 D Common Stock 2021-08-06 4 S 0 16161 20.67 D 1002473 D Common Stock 2021-08-09 4 S 0 50000 19.75 D 952473 D Common Stock 38869 I By IRA Common Stock 56000 I By Spouse's IRA This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. A portion of the sale proceeds will be used by the Reporting Person to satisfy tax liabilities. This sale was effected pursuant to a Rule 10b5-1 plan previously adopted by the Reporting Person to satisfy the Reporting Person's tax liability in connection with the vesting of restricted stock units under the Company's 2016 Equity Incentive Plan, which grant was exempt from Section 16b pursuant to Rule 16b-3(d). /s/ Lev Peker 2021-08-10