X0609 4 2026-05-19 0001378950 CarParts.com, Inc. PRTS 0001611116 GREYSON JAY KEITH false C/O CARPARTS.COM, INC. 4910 AIRPORT PLAZA DRIVE, SUITE 300 LONG BEACH CA 90815 true false Restricted Stock Units 2026-05-19 4 A 0 186717 0 A Common Stock 186717 186717 D Reflects cash-settled RSUs. Each RSU represents a contingent right to receive an amount in cash equal to the fair market value of one share of the Issuer's common stock on the applicable vesting date. The RSUs shall vest on the 2027 annual shareholder meeting date, as long as the Reporting Person's service with the Company has not previously ended. /s/ Jay Greyson 2026-05-19