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CarParts.com (PRTS) COO gains common shares through RSU vesting

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

CarParts.com, Inc. Chief Operating Officer Michael Huffaker reported share acquisitions tied to vesting of restricted stock units (RSUs). On January 16, 2026, 43,630 RSUs converted into an equal number of common shares at $0 per share, increasing his direct common stock holdings to 447,314 shares. On the same date, another 18,750 RSUs converted into 18,750 common shares at $0 per share, bringing his direct common stock ownership to 466,064 shares.

The RSUs were granted on January 16, 2024 under the CarParts.com, Inc. 2016 Equity Incentive Plan. For one grant, one‑third of the shares vested on January 16, 2026, with the remaining portion scheduled to vest on the next and final anniversary, subject to continued service. For the other grant, 50% vested on January 16, 2025 and the balance vested in equal quarterly installments through the final vesting on January 16, 2026.

Positive

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Insider Huffaker Michael
Role Chief Operating Officer
Type Security Shares Price Value
Exercise Restricted Stock Units 43,630 $0.00 --
Exercise Restricted Stock Units 18,750 $0.00 --
Exercise Common Stock 43,630 $0.00 --
Exercise Common Stock 18,750 $0.00 --
Holdings After Transaction: Restricted Stock Units — 43,630 shares (Direct); Common Stock — 447,314 shares (Direct)
Footnotes (1)
  1. 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. 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. Not applicable.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Huffaker Michael
(Last) (First) (Middle)
2050 W. 190TH STREET, SUITE 400
(Street)
TORRANCE CA 90504
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
CarParts.com, Inc. [ PRTS ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Operating Officer
3. Date of Earliest Transaction (Month/Day/Year)
01/16/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 01/16/2026 M(1) 43,630 A $0 447,314 D
Common Stock 01/16/2026 M(2) 18,750 A $0 466,064 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units(1) (3) 01/16/2026 M 43,630 (3) (3) Common Stock 43,630 $0 43,630 D
Restricted Stock Units(2) (3) 01/16/2026 M 18,750 (3) (3) Common Stock 18,750 $0 0 D
Explanation of Responses:
1. 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.
2. 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.
3. Not applicable.
/s/ Michael Huffaker 01/20/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did CarParts.com (PRTS) report for its COO?

CarParts.com reported that Chief Operating Officer Michael Huffaker had restricted stock units (RSUs) vest and convert into common stock on January 16, 2026. The transactions reflect equity awards settling into shares rather than an open‑market purchase or sale.

How many CarParts.com (PRTS) shares did the COO receive from RSU vesting?

On January 16, 2026, one RSU grant delivered 43,630 shares of CarParts.com common stock at $0 per share, and a second RSU grant delivered 18,750 shares at $0 per share, all recorded as directly owned.

What is Michael Huffaker’s direct CarParts.com share ownership after these Form 4 transactions?

Following the RSU conversions reported on January 16, 2026, Michael Huffaker directly owned 466,064 shares of CarParts.com common stock, according to the Form 4.

What are the vesting terms of the CarParts.com RSUs granted to the COO on January 16, 2024?

For one RSU grant, 33⅓% of the shares vested on January 16, 2026, with the remaining shares scheduled to vest on the next and final anniversary, subject to continued service. For the other grant, 50% vested on January 16, 2025, and the rest vested in equal quarterly installments through the final vesting on January 16, 2026.

Were these CarParts.com (PRTS) insider transactions open‑market sales or purchases?

No. The Form 4 shows transaction code M, indicating the conversion of restricted stock units into common stock at $0 per share under the company’s equity incentive plan, rather than open‑market trading.

Under which plan were the COO’s CarParts.com RSUs granted?

The RSUs reported in this Form 4 were granted on January 16, 2024 pursuant to the CarParts.com, Inc. 2016 Equity Incentive Plan, as noted in the footnotes.