Tax withholding trims PHINIA (NYSE: PHIN) SVP Robert Boyle stake

Rhea-AI Filing Summary

PHINIA INC. senior vice president, general counsel and secretary Robert Boyle reported an automatic tax-withholding disposition of 2,212 shares of common stock at $72.63 per share when restricted stock vested. After this withholding, he directly holds 35,650 common shares, including 14,397 shares of restricted stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Boyle Robert

Role SVP, GC and Secretary

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	2,212	$72.63	$161K

Holdings After Transaction: Common Stock — 35,650 shares (Direct)

Footnotes (1)

1. Shares automatically and mandatorily withheld to satisfy the tax withholding requirement upon the vesting of restricted stock. Includes 14,397 shares of restricted stock.

Form 4 Insider Transactions: What Each Field Means →

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^*

Boyle Robert

(Last) (First) (Middle)

3000 UNIVERSITY DRIVE

(Street)

AUBURN HILLS MI 48326

(City) (State) (Zip)

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)
	SVP, GC and Secretary

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

4. 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 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	02/27/2026		F		2,212(1)	D	$72.63	35,650(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 14,397 shares of restricted stock.

Remarks:

	/s/ Kelly A. Albin as attorney-in-fact for Robert Boyle	03/03/2026
	** 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.

FAQ

What insider transaction did PHINIA (PHIN) report for Robert Boyle?

PHINIA reported that Robert Boyle had 2,212 common shares automatically withheld to cover taxes upon the vesting of restricted stock. This tax-withholding disposition was recorded at a price of $72.63 per share and was not an open-market sale of shares.

How many PHINIA (PHIN) shares were involved in Robert Boyle’s tax withholding?

The filing shows 2,212 PHINIA common shares were automatically and mandatorily withheld to satisfy tax withholding obligations upon restricted stock vesting. This type of transaction reduces reported holdings but does not reflect a discretionary decision to sell shares in the open market.

At what price were Robert Boyle’s PHINIA (PHIN) shares withheld for taxes?

The tax-withholding disposition was reported at $72.63 per PHINIA common share. This price is used for calculating the value of shares withheld to satisfy tax obligations arising from the vesting of restricted stock, rather than representing a negotiated open-market trade.

How many PHINIA (PHIN) shares does Robert Boyle hold after this transaction?

After the tax-withholding disposition, Robert Boyle directly holds 35,650 PHINIA common shares. This total includes 14,397 shares of restricted stock, which are typically subject to vesting and other conditions before they become fully unrestricted and freely tradable.

Was Robert Boyle’s PHINIA (PHIN) Form 4 transaction an open-market sale?

No, the Form 4 describes an automatic tax-withholding disposition, not a voluntary open-market sale. Shares were mandatorily withheld by PHINIA to satisfy tax obligations triggered when restricted stock vested, a common administrative mechanism for equity compensation programs.

What is Robert Boyle’s role at PHINIA (PHIN) mentioned in the Form 4?

The Form 4 identifies Robert Boyle as senior vice president, general counsel and secretary of PHINIA. This indicates he is a key executive and officer of the company, which is why his equity transactions in PHINIA common stock must be reported to regulators and investors.