PRTS CFO reports RSU vesting and tax-share withholding

Rhea-AI Filing Summary

CarParts.com (PRTS) CFO Ryan Lockwood reported routine equity transactions. On 10/16/2025, 18,750 Restricted Stock Units vested and were settled into common stock (transaction code M). On 10/17/2025, the company withheld 6,709 shares (code F) to satisfy taxes. Following these transactions, he directly beneficially owns 208,182 shares.

The RSUs were granted on January 16, 2024 under the 2016 Equity Incentive Plan, with 50% vesting on January 16, 2025 and the balance vesting quarterly through the second anniversary, including the October 16, 2025 installment.

Insider Trade Summary

18,750 shares exercised/converted

Mixed 3 txns

Insider Lockwood Ryan

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	6,709	$0.66	$4K
Exercise	Restricted Stock Units	18,750	$0.00	--
Exercise	Common Stock	18,750	$0.00	--

Holdings After Transaction: Common Stock — 208,182 shares (Direct); Restricted Stock Units — 18,750 shares (Direct)

Footnotes (1)

1. 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 vest in equal installments each quarter thereafter, including herein on October 16, 2025, through the second anniversary of the grant date, subject to such Reporting Person's service to the Company through such dates. Represents shares of common stock that have been withheld by the Company to satisfy tax withholding obligations in connection with the net settlement of vested Restricted Stock Units. 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^*

Lockwood Ryan

(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 Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/16/2025

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	10/16/2025		M(1)		18,750	A	$0	214,891	D
Common Stock	10/17/2025		F(2)		6,709	D	$0.66	208,182	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)	10/16/2025		M			18,750	(3)	(3)	Common Stock	18,750	$0	18,750	D

Explanation of Responses:

1. 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 vest in equal installments each quarter thereafter, including herein on October 16, 2025, through the second anniversary of the grant date, subject to such Reporting Person's service to the Company through such dates.

2. Represents shares of common stock that have been withheld by the Company to satisfy tax withholding obligations in connection with the net settlement of vested Restricted Stock Units.

3. Not applicable.

	/s/ Ryan Lockwood	10/20/2025
	** 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.

FAQ

What did CarParts.com (PRTS) disclose in this Form 4?

The CFO reported the vesting of 18,750 RSUs on 10/16/2025 and the withholding of 6,709 shares on 10/17/2025 for taxes.

How many PRTS shares does the CFO own after these transactions?

He directly beneficially owns 208,182 shares after the reported transactions.

What were the transaction codes and their meanings?

Code M reflects RSU settlement into common stock; code F reflects shares withheld to cover tax obligations.

What is the vesting schedule for the CFO’s RSUs?

Granted on January 16, 2024, 50% vested on January 16, 2025, with the remainder vesting in equal quarterly installments through the second anniversary, including October 16, 2025.

Was any cash price paid for the RSU settlement?

The RSU settlement shows a price of $0 for the conversion, consistent with RSU vesting mechanics; shares were withheld for taxes.

What is CarParts.com’s ticker symbol?

CarParts.com trades under the ticker PRTS.