CarParts.com COO buys 13,250 shares at $10.06

CarParts.com, Inc. (PRTS) chief operating officer Michael Huffaker purchased 13,250 shares of the company’s common stock on September 10, 2026 in a transaction described as a purchase in the open market or a private transaction at a price of $10.06 per share.

Rhea-AI Filing Summary

CarParts.com, Inc. (PRTS) chief operating officer Michael Huffaker purchased 13,250 shares of the company’s common stock on September 10, 2026 in a transaction described as a purchase in the open market or a private transaction at a price of $10.06 per share. Following this buy, he directly holds 152,810 common shares. No Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Net Buyer: 13,250 shares

Net Buy 1 txn

Insider Huffaker Michael

Role COO

Bought 13,250 shs ($133K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	13,250	$10.06	$133K

Holdings After Transaction: Common Stock — 152,810 shares (Direct)

Key Figures

Shares purchased: 13,250 shares Purchase price per share: $10.06 per share Post-transaction holdings: 152,810 shares +1 more

4 metrics

Shares purchased 13,250 shares Common stock bought by the COO on September 10, 2026

Purchase price per share $10.06 per share Price paid for the 13,250 shares acquired on September 10, 2026

Post-transaction holdings 152,810 shares Common stock directly held by the COO after the reported purchase

Number of buy transactions 1 transaction Count of reported purchase transactions in this Form 4

Key Terms

open market, private transaction, Rule 10b5-1 trading plan

3 terms

open market financial

"described as a purchase in the open market or a private transaction"

An open market is a system where buying and selling of goods, services, or financial assets happen freely without restrictions or special controls. For investors, it means they can trade assets easily and quickly, which helps determine fair prices based on supply and demand. This environment encourages transparency and competition, making it easier to buy or sell with confidence.

private transaction financial

"described as a purchase in the open market or a private transaction"

A private transaction is the sale or transfer of securities, assets, or ownership stakes carried out directly between a small number of parties rather than on a public exchange. For investors it matters because these deals are less visible and often less liquid than public trades, so pricing can be harder to verify, the investment can be harder to sell quickly, and buyers or sellers may gain strategic advantages not available in open markets — like negotiated terms similar to a private garage sale versus a crowded marketplace.

Rule 10b5-1 trading plan regulatory

"No Rule 10b5-1 trading plan is reported for this transaction"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

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

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

CarParts.com reported that COO Michael Huffaker purchased 13,250 shares of common stock on September 10, 2026 in a transaction described as a purchase in the open market or a private transaction at $10.06 per share.

How many CarParts.com (PRTS) shares does the COO hold after this Form 4 transaction?

After the September 10, 2026 purchase, COO Michael Huffaker directly holds 152,810 shares of CarParts.com common stock, according to the Form 4 filing.

Was the CarParts.com (PRTS) COO’s share purchase under a Rule 10b5-1 plan?

No. The filing indicates that no Rule 10b5-1 trading plan is reported for COO Michael Huffaker’s September 10, 2026 purchase of CarParts.com common stock.

What price did the CarParts.com (PRTS) COO pay per share in the reported transaction?

COO Michael Huffaker paid $10.06 per share for 13,250 shares of CarParts.com common stock in the September 10, 2026 transaction described as an open-market or private purchase.

Is the reported CarParts.com (PRTS) insider trade a buy or a sell?

The reported transaction by COO Michael Huffaker is a purchase of 13,250 shares of CarParts.com common stock on September 10, 2026, increasing his directly held position to 152,810 shares.

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

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Available on EDGAR 09/10/2026 - 08:02 PM Accepted by SEC EDGAR 09/10/2026 - 08:01 PM Learn about SEC filing dates

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)

4910 AIRPORT PLAZA DRIVE, SUITE 300

(Street)

LONG BEACH CALIFORNIA 90815

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	09/10/2026		P		13,250	A	$10.06	152,810	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

Explanation of Responses:

	/s/ Michael Huffaker	09/10/2026
	** 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.
* Form 4: SEC 1474 (03-26)