CarParts.com, Inc. Initial Statement of Beneficial Ownership

CarParts.com, Inc. (PRTS) filed an initial ownership report on Form 3 for its interim Chief Financial Officer, Mark DiSiena.

Accepted by SEC EDGAR 11/20/2025 - 04:03 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

CarParts.com, Inc. (PRTS) filed an initial ownership report on Form 3 for its interim Chief Financial Officer, Mark DiSiena. The filing states that as of the event date of 11/12/2025, he beneficially owns 0 shares of common stock, as confirmed in Table I. The explanation of responses further clarifies that no securities are beneficially owned, and there are no derivative securities listed in Table II.

Insider Trade Summary

Holdings reported, no transactions

Holdings

Insider DiSiena Mark

Role Interim CFO

Type	Security	Shares	Price	Value
Holding	Common Stock	--	--	--

Holdings: Common Stock — 0 shares (Direct)

Footnotes (1)

1. F1. No securities are beneficially owned.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What is the purpose of this Form 3 filing for CarParts.com (PRTS)?

This Form 3 reports the initial securities ownership of Mark DiSiena, the interim CFO of CarParts.com, Inc. (PRTS), as required for company insiders.

How many CarParts.com (PRTS) common shares does the interim CFO beneficially own?

According to the filing, the interim CFO beneficially owns 0 shares of common stock, with a note stating that no securities are beneficially owned.

Does the interim CFO of CarParts.com (PRTS) hold any derivative securities?

Table II, which would list options or other derivative securities, contains no entries, indicating no derivative securities are beneficially owned by the interim CFO.

What is the role of the reporting person in this CarParts.com (PRTS) filing?

The reporting person, Mark DiSiena, is identified as an Officer of CarParts.com, Inc., with the title Interim CFO.

Is this Form 3 filed by one or multiple reporting persons for CarParts.com (PRTS)?

The document indicates that the Form is filed by one reporting person, specifically the interim CFO, Mark DiSiena.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

DiSiena Mark

(Last) (First) (Middle)

C/O CARPARTS.COM, INC.

2050 W. 190TH STREET, SUITE 400

(Street)

TORRANCE CA 90504

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
11/12/2025

3. Issuer Name and Ticker or Trading Symbol
CarParts.com, Inc. [ PRTS ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Interim CFO

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	0(1)	D(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. No securities are beneficially owned.

	/s/ Mark DiSiena	11/20/2025
	** 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 5 (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.