X0508 4 2024-01-16 0001378950 CarParts.com, Inc. PRTS 0001922934 Subramanian Kals 2050 W. 190TH STREET, SUITE 400 TORRANCE CA 90504 true Chief Technology Officer false Restricted Stock Units 2024-01-16 4 A 0 117500 0 A Common Stock 117500 117500 D Restricted Stock Units 2024-01-16 4 A 0 150000 0 A Common Stock 150000 150000 D The Restricted Stock Units (RSUs) were granted to the Reporting Person on January 16, 2024 pursuant to the CarParts.com, Inc. 2016 Equity Incentive Plan. The RSUs shall vest in three equal installments on each of the next three anniversaries of the grant date, subject to such Reporting Person's service to the Company through such dates. Not applicable. The Restricted Stock Units (RSUs) were granted to the Reporting Person on January 16, 2024 pursuant to the CarParts.com, Inc. 2016 Equity Incentive Plan. Fifty percent of the RSUs shall vest on the first anniversary of the grant date, and the remainder of the RSUs will vest in equal installments each quarter thereafter through the second anniversary of the grant date, subject to such Reporting Person's service to the Company through such dates. /s/ Kals Subramanian 2024-01-18