Sec Form 4 Filing - McGarry Martha E @ Organon & Co. - 2021-06-04

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 McGarry Martha E 2. Issuer Name and Ticker or Trading Symbol Organon & Co. [ OGN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O ORGANON & CO., 30 HUDSON STREET, FLOOR 33 3. Date of Earliest Transaction (MM/DD/YY) 06/04/2021 (Street) JERSEY CITY, NJ07302 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

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 Phantom Stock ( 1 ) 06/04/2021 A 8,772 ( 2 ) ( 2 ) Common Stock 8,772 $ 36.05 8,772 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other McGarry Martha E C/O ORGANON & CO. 30 HUDSON STREET, FLOOR 33 JERSEY CITY, NJ07302 X Signatures /s/ Faye C. Brown, as Attorney-in-Fact for Martha E. McGarry 06/08/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )1-for-1 ( 2 )Consists of (i) a one-time grant of 5,549 phantom units awarded in connection with the separation of Organon & Co. ("Organon") from Merck & Co., Inc. (the "Separation"), which units will vest in full on the earlier of the one-year anniversary of the Separation or Organon's first annual shareholders meeting after the Separation, and (ii) a pro-rata portion of the annual equity retainer in the form of 3,223 phantom units, which units are fully vested. Phantom units are granted under the Organon Non-Employee Director Savings Plan and are payable in cash upon settlement no sooner than one year after service as a director ceases.

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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