Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Weaver Kirke 2. Issuer Name and Ticker or Trading Symbol Organon & Co. [OGN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Gen. Counsel & Corp. Secy. (Last) (First) (Middle) C/O ORGANON & CO., 30 HUDSON STREET, FLOOR 33 3. Date of Earliest Transaction (Month/Day/Year) 02/27/2026 (Street) JERSEY CITY, NJ 07302 4. If Amendment, Date 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 (City) (State) (Zip) 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 A 21,925(1) A $ 0 74,414 D Common Stock 02/27/2026 F 6,815 D $7.17 67,599 D Common Stock 02/27/2026 A 6,186(2) A $ 0 73,785 D Common Stock 02/27/2026 F 1,763 D $7.23 73,854.163(3) D

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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 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Weaver Kirke C/O ORGANON & CO. 30 HUDSON STREET, FLOOR 33 JERSEY CITY, NJ 07302			Gen. Counsel & Corp. Secy.

Signatures

/s/ Faye C. Brown, as Attorney-in-Fact for Kirke Weaver		03/03/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents shares of Organon & Co. common stock ("Common Stock") for performance share units ("PSUs") granted to the reporting person on August 11, 2023 under the Organon & Co. 2021 Incentive Stock Plan. The performance-vesting restrictions with respect to these shares were released upon certification of performance goal attainment by the Talent Committee of Organon's Board of Directors.
(2)	Represents the shares of Common Stock released to cover the dividend equivalents earned on the PSUs released above.
(3)	Includes the addition of 1,832.163 shares of Common Stock acquired from dividend equivalents not previously required to be reported.
Remarks: Exhibit 24 - Power of Attorney

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