PHINIA officer sells 2,097 shares at $66.965

PHINIA VP Christopher Gustanski sold 2,097 PHIN shares and now directly holds 11,301 shares, including restricted stock.

Rhea-AI Filing Summary

PHINIA INC. (PHIN) reported that officer Christopher Gustanski, VP, Operational Excellence, sold 2,097 shares of common stock on September 9, 2026 at $66.965 per share in an open-market or private transaction. Following this sale, he directly holds 11,301 shares, which include 3,174 shares of restricted stock. No Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Net Seller: 2,097 shares

Net Sell 1 txn

Insider Gustanski Christopher

Role VP, Operational Excellence

Sold 2,097 shs ($140K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	2,097	$66.965	$140K

Holdings After Transaction: Common Stock — 11,301 shares (Direct)

Footnotes (1)

1. F1. Includes 3,174 shares of restricted stock.

Key Figures

Shares sold: 2,097 shares Sale price per share: $66.965 per share Shares held after transaction: 11,301 shares +2 more

5 metrics

Shares sold 2,097 shares Sale of PHINIA common stock on September 9, 2026 by Christopher Gustanski

Sale price per share $66.965 per share Price for the 2,097 PHINIA shares sold on September 9, 2026

Shares held after transaction 11,301 shares Direct PHINIA common stock holdings by Christopher Gustanski following the sale

Restricted stock included in holdings 3,174 shares Portion of Gustanski’s 11,301 post-transaction shares that are restricted stock

Net shares sold 2,097 shares Net change in Gustanski’s PHINIA common stock position from the reported sale

Key Terms

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

3 terms

restricted stock financial

"Includes 3,174 shares of restricted stock."

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

open-market or private transaction financial

"Sale in open market or private transaction"

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 PHINIA INC. (PHIN) report for Christopher Gustanski?

PHINIA reported that VP, Operational Excellence, Christopher Gustanski sold 2,097 shares of common stock on September 9, 2026 in an open-market or private transaction at $66.965 per share. After the sale, he directly holds 11,301 shares, including restricted stock.

How many PHIN shares does Christopher Gustanski hold after this Form 4 transaction?

After the reported sale, Christopher Gustanski directly holds 11,301 shares of PHINIA common stock. A footnote states that this amount includes 3,174 shares of restricted stock as part of his remaining holdings.

At what price were the PHIN shares sold in the September 9, 2026 transaction?

The 2,097 PHIN shares were sold at a price of $66.965 per share on September 9, 2026. The filing describes this as a sale in an open-market or private transaction, based on the reported transaction code description.

Was the PHIN insider sale by Christopher Gustanski under a Rule 10b5-1 trading plan?

No. The filing indicates that the Rule 10b5-1 checkbox is not selected, so no Rule 10b5-1 trading plan is reported in connection with this sale by Christopher Gustanski.

What portion of Christopher Gustanski’s remaining PHIN shares are restricted stock?

Out of the 11,301 shares that Christopher Gustanski holds after the sale, a footnote specifies that 3,174 shares are restricted stock. The remaining balance consists of non-restricted PHINIA common shares held directly.

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

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Available on EDGAR 09/11/2026 - 04:17 PM Accepted by SEC EDGAR 09/11/2026 - 04:16 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^*

Gustanski Christopher

(Last) (First) (Middle)

3000 UNIVERSITY DRIVE

(Street)

AUBURN HILLS MICHIGAN 48326

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PHINIA INC. [ PHIN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Operational Excellence

2a. Foreign Trading Symbol

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

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	09/09/2026		S		2,097	D	$66.965	11,301(1)	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:

1. Includes 3,174 shares of restricted stock.

Remarks:

	/s/ Kathleen Cindric as attorney-in-fact for Christopher Gustanski	09/11/2026
	** 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)