Michael Huffaker - 16 Jan 2026 Form 4 Insider Report for CarParts.com, Inc. (PRTS)

Reporting relationship: Chief Operating Officer
Issuer ticker: PRTS
Reported as of: 16 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Jan 2026, 16:36:23 UTC
Prior SEC filing: 06 Jan 2026
Next SEC filing: 09 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Huffaker

Key filing fact

Michael Huffaker filed Form 4 for CarParts.com, Inc. (PRTS) on 20 Jan 2026.

Key facts

This page summarizes Michael Huffaker's Form 4 filing for CarParts.com, Inc. (PRTS).
4 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 20 Jan 2026, 16:36.

Change

Previous filing in this sequence was filed on 06 Jan 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001956633 Primary reporting owner

Huffaker Michael

Relationship: Chief Operating Officer
Address: 2050 W. 190TH STREET, SUITE 400, TORRANCE
Signature: /s/ Michael Huffaker
Signature date: 20 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PRTS transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +43,630
Change %: +11%
Price: $0.000000
Shares after: 447,314
Date: 16 Jan 2026
Ownership: Direct
Footnotes: F1

PRTS transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +18,750
Change %: +4.2%
Price: $0.000000
Shares after: 466,064
Date: 16 Jan 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PRTS transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -43,630
Change %: -50%
Price: $0.000000
Shares after: 43,630
Date: 16 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 43,630
Exercise price
Footnotes: F1, F3

PRTS transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -18,750
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 16 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 18,750
Exercise price
Footnotes: F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

The Restricted Stock Units (RSU) were granted to the Reporting Person on January 16, 2024 pursuant to the CarParts.com, Inc. 2016 Equity Incentive Plan. Thirty-three and a third percent of the shares of stock subject to the RSU vested on January 16, 2026, the second anniversary of the grant date, and the remainder of the shares subject to the RSU will vest on the next, and thus last, anniversary of the grant date, subject to such Reporting Person's service to the Company through such date.

Footnote F2

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 vested on the first anniversary of the grant date on January 16, 2025, and the remainder of the RSUs vested in equal installments each quarter thereafter, including herein on January 16, 2026, the second anniversary of the grant date and final vesting.

Footnote F3

Not applicable.