Juliana Drinane - Oct 27, 2025 Form 3 Insider Report for Organon & Co. (OGN)

Signature
/s/ Tarnetta V. Jones, as Attorney-in-Fact for Juliana Drinane
Stock symbol
OGN
Transactions as of
Oct 27, 2025
Transactions value $
$0
Form type
3
Date filed
11/12/2025, 05:47 PM
Next filing
Nov 12, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Drinane Juliana Papa Interim Head of Mfg & Supply C/O ORGANON &CO., 30 HUDSON STREET, FLOOR 33, JERSEY CITY /s/ Tarnetta V. Jones, as Attorney-in-Fact for Juliana Drinane 2025-11-12 0002096406

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding OGN Common Stock 14.8K Oct 27, 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding OGN Restricted Stock Units Oct 27, 2025 Common Stock 6.38K Direct F1, F2
holding OGN Restricted Stock Units Oct 27, 2025 Common Stock 7.25K Direct F2, F3
holding OGN Restricted Stock Units Oct 27, 2025 Common Stock 16K Direct F2, F4
holding OGN Restricted Stock Units Oct 27, 2025 Common Stock 30.2K Direct F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 19,132 restricted stock units ("RSUs") were granted on March 31, 2023, and one-third vest each year with the final vesting date being March 31, 2026.
F2 Each RSU represents a contingent right to receive one share of common stock of Organon & Co.
F3 10,876 RSUs were granted on November 7, 2023, and one-third vest each year with the final vesting date being November 7, 2026.
F4 23,936 RSUs were granted on March 29, 2024, and one-third vest each year with the final vesting date being March 29, 2027.
F5 30,221 RSUs were granted on March 31, 2025, and one-third vest each year with the final vesting date being March 31, 2028.

Remarks:

Exhibit 24 - Power of Attorney