Sec Form 3 Filing - ORCP III DE TopCo GP, LLC @ Primo Brands Corp - 2024-11-08

FORM 3 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) 11/08/2024 (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 Class A Common Stock 154,105,789 ( 1 ) I See Footnote ( 2 )

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 Class B Common Stock ( 3 ) ( 3 ) ( 3 ) Class A Common Stock 64,512,579 ( 1 ) I See Footnote ( 2 )

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 Signatures ORCP III DE TopCo GP, LLC, By: /s/ Tony W. Lee, Managing Member 11/13/2024 Signature of Reporting Person Date Triton Water Parent Holdings, LP, By: /s/ Tony W. Lee, Authorized Person 11/13/2024 Signature of Reporting Person Date /s/ Scott Spielvogel 11/13/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Pursuant to that certain Arrangement Agreement and Plan of Merger, dated June 16, 2024 (the "Merger Agreement") by and among Primo Water Corporation ("Primo Water"), Triton Water Parent, Inc. ("BlueTriton"), the Issuer (f/k/a Triton US HoldCo, Inc.), and the other parties thereto, Primo Water and BlueTriton were merged with and into wholly owned subsidiaries of the Issuer, and each issued and outstanding common share of Primo Water and share of common stock of BlueTriton was converted into the Issuer's Class A Common Stock or Class B Common Stock according to the terms of the Merger Agreement. ( 2 )The securities reported herein are held of record by Triton Water Parent Holdings, LP ("Triton Parent"). ORCP III DE TopCo GP, LLC ("ORC III") is the general partner of Triton Parent. Scott Spielvogel and Tony W. Lee are the managing members of ORC III and share voting and investment discretion with respect to the securities held of record by Triton Parent. Accordingly, each of the persons and entities named herein may be deemed to share beneficial ownership of the securities held of record by Triton Parent. Each of them disclaims any such beneficial ownership except to the extent of their pecuniary interest therein, if any. ( 3 )The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis, provided that a holder may not convert the Class B Common Stock into shares of Class A Common Stock to the extent that, after giving effect to such conversion, any person or group, or any of their respective affiliates, would beneficially own in excess of 49.0% of the outstanding Class A Common Stock. In addition, the Class B Common Stock will automatically convert into shares of Class A Common Stock upon the earlier of (a) the occurrence of certain conditions in connection with the senior notes issued by Primo Water Holdings, Inc. or (b) 11:59 P.M. Eastern Time on April 30, 2029, as described in the Issuer's amended and restated certificate of incorporation.

Remarks: Tony W. Lee is filing a separate Form 3 and Form 4 with respect to the securities reported herein.

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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