CarParts.com COO buys 79,458 shares in market

CarParts.com’s COO directly purchased 79,458 shares of PRTS common stock across three open-market trades in early September 2026.

Rhea-AI Filing Summary

CarParts.com, Inc. (PRTS) reported that its Chief Operating Officer, Michael Huffaker, purchased Common Stock in three open-market transactions. He bought 21,160 shares on September 4, 2026 at $9.11 per share, 21,718 shares on September 8, 2026 at $9.35 per share, and 36,580 shares on September 9, 2026 at $9.64 per share, for a total of 79,458 shares acquired. All transactions are reported as direct ownership, and no Rule 10b5-1 trading plan is indicated.

Insider Trade Summary

Net Buyer: 79,458 shares

Net Buy 3 txns

Insider Huffaker Michael

Role COO

Bought 79,458 shs ($748K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	36,580	$9.64	$353K
Purchase	Common Stock	21,718	$9.35	$203K
Purchase	Common Stock	21,160	$9.11	$193K

Holdings After Transaction: Common Stock — 139,560 shares (Direct)

Key Figures

Shares purchased September 4, 2026: 21,160 shares Shares purchased September 8, 2026: 21,718 shares Shares purchased September 9, 2026: 36,580 shares +2 more

5 metrics

Shares purchased September 4, 2026 21,160 shares Open-market purchase of Common Stock at $9.11 per share

Shares purchased September 8, 2026 21,718 shares Open-market purchase of Common Stock at $9.35 per share

Shares purchased September 9, 2026 36,580 shares Open-market purchase of Common Stock at $9.64 per share

Total shares purchased 79,458 shares Sum of three reported purchases of Common Stock

Price range of purchases $9.11–$9.64 per share Per-share prices for the three open-market purchases

Key Terms

Common Stock, open-market transactions, Rule 10b5-1

3 terms

Common Stock financial

"purchased Common Stock in three open-market transactions"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open-market transactions financial

"Purchase in open market or private transaction"

Open-market transactions are purchases or sales of a company’s securities that take place on public exchanges rather than through private agreements. They matter to investors because these trades change the number of shares available, can move the stock price, and often signal management’s view of the company’s value—like a store restocking or clearing shelves, altering supply and the price shoppers see.

Rule 10b5-1 regulatory

"no Rule 10b5-1 trading plan is indicated"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

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

What insider transactions did CarParts.com (PRTS) report for Michael Huffaker?

Michael Huffaker, COO of CarParts.com, purchased 79,458 shares of Common Stock in three open-market transactions on September 4, 8, and 9, 2026, at prices between $9.11 and $9.64 per share, all reported as directly owned.

On what dates did the CarParts.com (PRTS) COO buy shares and at what prices?

The COO bought CarParts.com shares on September 4, 2026 at $9.11, on September 8, 2026 at $9.35, and on September 9, 2026 at $9.64 per share, all in open-market purchases of Common Stock.

How many CarParts.com (PRTS) shares did the COO purchase in total?

Across three reported open-market transactions, CarParts.com’s COO purchased a total of 79,458 shares of Common Stock, consisting of 21,160 shares, 21,718 shares, and 36,580 shares on three separate trading days.

Were the CarParts.com (PRTS) insider purchases made under a Rule 10b5-1 plan?

No. The filing indicates the Rule 10b5-1 checkbox is not affirmed, and there are no footnotes stating that these purchases were made pursuant to a Rule 10b5-1 or other pre-arranged trading plan.

Is the CarParts.com (PRTS) COO’s ownership direct or through an entity?

The transactions are reported with ownership type direct, meaning the COO is listed as holding the purchased Common Stock directly, with no separate entity or indirect ownership structure noted for these trades.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/09/2026 - 06:44 PM Accepted by SEC EDGAR 09/09/2026 - 06:43 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)
09/04/2026

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	09/04/2026		P		21,160	A	$9.11	81,262	D
Common Stock	09/08/2026		P		21,718	A	$9.35	102,980	D
Common Stock	09/09/2026		P		36,580	A	$9.64	139,560	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	09/09/2026
	** 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)