PHINIA VP has 1,530 shares withheld for taxes

Rhea-AI Filing Summary

PHINIA INC. (PHIN) reported that officer Christopher Gustanski, VP Operational Excellence, had 1,530 shares of common stock automatically withheld on 2026-08-28 to satisfy the tax withholding requirement upon vesting of restricted stock. After this withholding, he directly holds 13,398 shares, including 3,174 shares of restricted stock.

Insider Trade Summary

Net Seller: 1,530 shares

Net Sell 1 txn

Insider Gustanski Christopher

Role VP, Operational Excellence

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	1,530	$68.65	$105K

Holdings After Transaction: Common Stock — 13,398 shares (Direct)

Footnotes (2)

1. F1. Shares automatically and mandatorily withheld to satisfy the tax withholding requirement upon the vesting of restricted stock.
2. F2. Includes 3,174 shares of restricted stock.

Key Figures

Shares withheld for tax: 1,530 shares of Common Stock Reported value per share: $68.65 per share Shares owned after transaction: 13,398 shares of Common Stock +1 more

4 metrics

Shares withheld for tax 1,530 shares of Common Stock Automatically and mandatorily withheld on 2026-08-28 to satisfy tax withholding upon vesting of restricted stock

Reported value per share $68.65 per share Value used for the 1,530 withheld shares in the tax withholding transaction

Shares owned after transaction 13,398 shares of Common Stock Direct holdings of Christopher Gustanski following the 2026-08-28 withholding event

Restricted stock included in holdings 3,174 shares of restricted stock Portion of the 13,398 post-transaction shares that are restricted stock

Key Terms

restricted stock, tax withholding requirement, Power of Attorney

3 terms

restricted stock financial

"upon the vesting 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.

tax withholding requirement financial

"withheld to satisfy the tax withholding requirement upon the vesting"

Power of Attorney regulatory

"Power of Attorney is attached hereto as Exhibit 24."

A power of attorney is a legal document that allows one person to make decisions and act on behalf of another person, often in financial or legal matters. It’s like giving someone a trusted helper or agent the authority to handle important tasks if you are unable to do so yourself. This matters to investors because it can impact how their assets are managed or transferred if they become unable to oversee their affairs.

FAQ

What transaction did PHINIA INC. (PHIN) report for Christopher Gustanski on this Form 4?

PHINIA INC. reported that 1,530 shares of common stock were automatically and mandatorily withheld from Christopher Gustanski on 2026-08-28 to satisfy the tax withholding requirement upon the vesting of restricted stock, coded as a Form 4 transaction type F.

Was the PHINIA (PHIN) Form 4 transaction a market sale or a tax withholding event?

The Form 4 transaction was a tax withholding event, not an open-market sale. The filing states the shares were "automatically and mandatorily withheld to satisfy the tax withholding requirement" upon the vesting of restricted stock.

How many PHINIA (PHIN) shares were withheld for taxes from Christopher Gustanski and at what price?

The filing shows 1,530 shares of PHINIA common stock were withheld at a reported value of $68.65 per share in connection with satisfying the tax withholding requirement upon vesting of restricted stock.

How many PHINIA (PHIN) shares does Christopher Gustanski hold after the reported Form 4 transaction?

After the withholding transaction, Christopher Gustanski directly holds 13,398 shares of PHINIA common stock. A footnote specifies that this amount includes 3,174 shares of restricted stock.

Does the PHINIA (PHIN) Form 4 indicate any Rule 10b5-1 trading plan for this transaction?

No. The metadata indicates the Rule 10b5-1 checkbox is not checked (aff_10b5_one is false), and the footnotes do not describe the transaction as being executed pursuant to a Rule 10b5-1 trading plan.

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

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Available on EDGAR 09/01/2026 - 08:14 PM Accepted by SEC EDGAR 09/01/2026 - 08:12 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)
08/28/2026

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	08/28/2026		F		1,530(1)	D	$68.65	13,398(2)	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. Shares automatically and mandatorily withheld to satisfy the tax withholding requirement upon the vesting of restricted stock.

2. Includes 3,174 shares of restricted stock.

Remarks:

Power of Attorney is attached hereto as Exhibit 24.

	/s/ Kathleen Cindric as attorney-in-fact for Christopher Gustanski	09/01/2026
	** 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)