Sec Form 4 Filing - Manfredi Manuel @ Waldencast plc - 2026-07-30

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 Manfredi Manuel 2. Issuer Name and Ticker or Trading Symbol Waldencast plc [ WALD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O WALDENCAST PLC, MICHELIN HOUSE, 81 FULHAM ROAD 3. Date of Earliest Transaction (MM/DD/YY) 07/30/2026 (Street) LONDONSW3 6RD 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 Ordinary Shares 07/30/2026 M( 1 ) 79,289 A $ 0 118,933 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 (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 Restricted Stock Units ( 2 ) 07/30/2026 M( 1 ) 79,289 ( 3 ) ( 3 ) Class A Ordinary Shares 79,289 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Manfredi Manuel C/O WALDENCAST PLC MICHELIN HOUSE, 81 FULHAM ROAD LONDONSW3 6RD Chief Financial Officer Signatures /s/ Manuel Manfredi 08/07/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents accelerated vesting of 79,289 outstanding restricted stock units ("RSUs") held by the reporting person in connection with the completion of the Issuer's sale of its Obagi Medical dermatological skincare and aesthetics business on July 30, 2026. Effective on the date of completion of such sale, the reporting person transitioned from the Issuer to lead Obagi Medical. ( 2 )Each RSU represents a contingent right to receive one Class A ordinary share, or an equivalent value in cash at the plan administrator's election. ( 3 )On October 30, 2024, the reporting person was granted 118,933 RSUs, which would have vested over a three-year period as follows: (i) 39,644 on October 1, 2025; (ii) 39,644 on October 1, 2026; and (iii) 39,645 on October 1, 2027.

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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