Robert P. Austin - 10 Dec 2025 Form 4 Insider Report for Primo Brands Corp (PRMB)

Role: Chief Operating Officer
Signature: /s/ Michael James, Attorney-in-Fact
Issuer symbol: PRMB
Transactions as of: 10 Dec 2025
Net transactions value: -$32,675
Form type: 4
Filing time: 12 Dec 2025, 17:15:18 UTC
Previous filing: 13 Dec 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Austin Robert P	Chief Operating Officer	1150 ASSEMBLY DRIVE, SUITE 800, TAMPA	/s/ Michael James, Attorney-in-Fact	12 Dec 2025	0002042730

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PRMB	Class A Common Stock	Award	$0	+18,384	+154%	$0.000000	30,321	10 Dec 2025	Direct	F1
transaction	PRMB	Class A Common Stock	Tax liability	$32,675	-2,032	-6.7%	$16.08	28,289	11 Dec 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents an award of restricted stock units ("RSUs"), each of which represent a contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs will vest in equal one-third installments on each of the first, second and third anniversaries of the grant date.
F2	Represents the number of Class A Common Stock withheld to satisfy tax obligations due upon the vesting of restricted stock units granted to the Reporting Person.