Sec Form 4 Filing - ORCP III DE TopCo GP, LLC @ Primo Brands Corp - 2025-12-08

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person ORCP III DE TopCo GP, LLC 2. Issuer Name and Ticker or Trading Symbol Primo Brands Corp [ PRMB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O ONE ROCK CAPITAL PARTNERS, LLC, 45 ROCKEFELLER PLAZA, 39TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 12/08/2025 (Street) NEW YORK,, NY10111 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Forward Contract (conditional obligation to sell) ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) 12/08/2025 J/K( 1 ) 1 ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 1 )( 2 )( 3 )( 4 )( 5 )( 6 ) ( 1 )( 2 )( 3 )( 4 )( 5 )( 6 ) Class A Common Stock ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) 1 ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) I See Footnote ( 7 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ORCP III DE TopCo GP, LLC C/O ONE ROCK CAPITAL PARTNERS, LLC 45 ROCKEFELLER PLAZA, 39TH FLOOR NEW YORK,, NY10111 X Triton Water Parent Holdings, LP C/O ONE ROCK CAPITAL PARTNERS, LLC 45 ROCKEFELLER PLAZA, 39TH FLOOR NEW YORK,, NY10111 X Spielvogel Scott C/O ONE ROCK CAPITAL PARTNERS, LLC 45 ROCKEFELLER PLAZA, 39TH FLOOR NEW YORK,, NY10111 X Triton Water Equity Holdings, LP C/O ONE ROCK CAPITAL PARTNERS, LLC 45 ROCKEFELLER PLAZA, 39TH FLOOR NEW YORK,, NY10111 X Triton Water Equity Holdings GP, LLC C/O ONE ROCK CAPITAL PARTNERS, LLC 45 ROCKEFELLER PLAZA, 39TH FLOOR NEW YORK,, NY10111 X Signatures ORCP III DE TopCo GP, LLC, By: /s/ Tony W. Lee, Managing Member 12/10/2025 Signature of Reporting Person Date Triton Water Parent Holdings, LP, By: /s/ Tony W. Lee, Authorized Person 12/10/2025 Signature of Reporting Person Date /s/ Scott Spielvogel 12/10/2025 Signature of Reporting Person Date Triton Water Equity Holdings, LP, By: Triton Water Equity Holdings GP, LLC, its general partner, By: /s/ Fola Adamolekun, Secretary 12/10/2025 Signature of Reporting Person Date Triton Water Equity Holdings GP, LLC, By: /s/ Fola Adamolekun, Secretary 12/10/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On December 8, 2025, Triton Water Equity Holdings, LP and Triton Water Equity Holdings GP, LLC entered into an amendment to that certain margin loan agreement dated as of November 17, 2024 with JPMorgan Chase Bank, N.A., as Calculation Agent and Administrative Agent, and lenders from time to time party thereto, as amended (the "Loan Agreement") to refinance the Loan Agreement (the "Refinancing Amendment"). As part of the refinancing, on December 8, 2025, Triton Water Forward Holdings, LP ("TWFH"), a wholly-owned subsidiary of Triton Water Parent Holdings, LP entered into a pre-paid variable share forward transaction with an unaffiliated bank (the "Bank") pursuant to a Master Confirmation and related Supplemental Confirmation (the "Forward Contract"). ( 2 )Pursuant to the Refinancing Amendment, among other things, 18,593,729 shares of Class A common stock of the Issuer, par value $0.01 per share ("Common Stock") were released from the collateral pledged for the Loan Agreement, and TWFH pledged such 18,593,729 shares of Common Stock (the "VPF Pledged Shares") to secure its obligations under the Forward Contract. The VPF Pledged Shares represent approximately 16% of the shares of Common Stock beneficially owned by the Reporting Owners. ( 3 )The Forward Contract obligates TWFH to deliver to the Bank, on one or more specified dates over a period of time ending on the maturity date of January 6, 2028 (the "Maturity Date"), at TWFH's option, either, (i) up to an aggregate number of shares of Common Stock equal to the number of shares pledged by TWFH or (ii) at TWFH's election, subject to certain conditions, an equivalent amount of cash. Under the terms of the Forward Contract, on or about the date thereof, TWFH received a prepayment in an aggregate amount of approximately $139 million from the Bank, which was applied to refinance certain outstanding obligations of Triton Water Equity Holdings, LP under the Loan Agreement. ( 4 )TWFH retains ownership and voting rights in the VPF Pledged Shares during the term of the Forward Contract until such VPF Pledged Shares are either (i) released and returned to TWFH, if TWFH settles the Forward Contract in cash, or (ii) the VPF Pledged Shares are delivered to the Bank if TWFH physically settles the Forward Contract or upon an exercise of remedies by the Bank in case of TWFH's default. TWFH also retains ordinary dividend rights in the VPF Pledged Shares, subject to certain payments TWFH may need to make to the Bank with respect to dividends under the terms of the Forward Contract. ( 5 )Under the Forward Contract, the number of shares of Common Stock, or the equivalent amount of cash, to be delivered to the Bank on one or more specified dates over a period of time ending on the Maturity Date is to be determined as follows: (a) if the per-share volume weighted average price of the Common Stock on the related valuation date (the "Settlement Price") is less than or equal to $7.50 (the "Floor Price"), TWFH will deliver to the Bank either the ratable portion of the VPF Pledged Shares to be delivered on such date or an equivalent amount of cash (such number of shares, the "Number of Shares"); (b) if the Settlement Price is between the Floor Price and $15.75 (the "Cap Price"), TWFH will deliver to the Bank either a number of shares of Common Stock equal to the Number of Shares multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is the Settlement Price, or an equivalent amount of cash; and (continued) ( 6 )(c) if the Settlement Price is greater than the Cap Price, TWFH will deliver to the Bank either a number of shares of Common Stock equal to the product of (i) the Number of Shares and (ii) a fraction (a) the numerator of which is the sum of (x) the Floor Price and (y) the Settlement Price minus the Cap Price, and (b) the denominator of which is the Settlement Price, or an equivalent amount of cash. ( 7 )TWFH is the record holder of 18,593,729 shares of Common Stock. ORCP III DE TopCo GP, LLC is the general partner of Triton Water Parent Holdings, LP. Triton Water Parent Holdings, LP is the managing member of Triton Water Forward Holdings, GP, LLC, which is the general partner of TWFH. Mr. Spielvogel and Mr. Lee are the managing members of ORCP III DE TopCo GP, LLC and share voting and investment discretion with respect to the securities held of record by TWFH. Each of the persons and entities named herein may be deemed to share beneficial ownership of the securities held of record by TWFH. Each of them disclaims any such beneficial ownership except to the extent of their pecuniary interest therein, if any.

Remarks: Tony W. Lee is filing a separate Form 4.

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).

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