CarPartscom Inc

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

CARPARTS.COM, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

2050 W. 190th Street, Suite 400, Torrance, California 90504

Notice of Annual Meeting of Stockholders

To the Stockholders of CarParts.com, Inc.:

NOTICE IS HEREBY GIVEN that the 2025 Annual Meeting of Stockholders (together with any postponements, adjournments or other delays thereof, the “Annual Meeting”) of CarParts.com, Inc., a Delaware corporation (the “Company”), will be held on June 13, 2025 at 9:00 a.m. Pacific Time at the offices of the Company located at 2050 W. 190th Street, Suite 400, Torrance, California 90504, to consider and vote on the following proposals:

At the Annual Meeting, we will also transact such other business, if any, as may properly come before the Annual Meeting.

Only stockholders of record at the close of business on April 23, 2025 are entitled to notice of and to vote at the Annual Meeting. A list of stockholders entitled to vote at the Annual Meeting will be available for inspection at our principal executive offices and at the Annual Meeting.

All stockholders are cordially invited to attend the meeting in person. If you wish to attend the meeting in person, you will need to RSVP and print your admission ticket atwww.proxyvote.com. An admission ticket together with photo identification must be presented in order to be admitted to the meeting. If you hold your shares in street name and wish to vote by ballot at the Annual Meeting, you will also need to obtain and present a legal proxy entitling you to vote at the Annual Meeting from the broker, bank or other nominee that holds your shares. Please refer to page 4 of the accompanying proxy statement for further details.

Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be Held on June 13, 2025: This proxy statement and our annual report on Form 10-K for the year ended December 28, 2024 are available at http://carparts.com/investor.

By Order of the Board of Directors

CarParts.com, Inc.

2050 W. 190th Street, Suite 400

Torrance, California 90504

YOUR VOTE IS VERY IMPORTANT REGARDLESS OF THE NUMBER OF SHARES YOU OWN. ALL STOCKHOLDERS ARE INVITED TO ATTEND THE ANNUAL MEETING IN PERSON BY REGISTERING AT PROXYVOTE.COM. WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING, WE ENCOURAGE YOU TO READ THIS PROXY STATEMENT AND SUBMIT YOUR PROXY OR VOTING INSTRUCTIONS AS SOON AS POSSIBLE. THIS WILL ENSURE THE PRESENCE OF A QUORUM AT THE MEETING. PLEASE READ THE ATTACHED PROXY STATEMENT CAREFULLY, COMPLETE, SIGN AND DATE THE ENCLOSED PROXY CARD OR VOTING INSTRUCTION FORM AS PROMPTLY AS POSSIBLE AND RETURN IT IN THE ENCLOSED ENVELOPE. IF YOU ATTEND THE MEETING, YOU MAY VOTE IN PERSON IF YOU WISH TO DO SO EVEN IF YOU HAVE PREVIOUSLY SUBMITTED YOUR PROXY OR VOTING INSTRUCTIONS.

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