MATTHEW M. WALSH - 27 Feb 2026 Form 4 Insider Report for Organon & Co. (OGN)

Role
Chief Financial Officer
Signature
/s/ Faye C. Brown, as Attorney-in-Fact for Matthew M. Walsh
Issuer symbol
OGN
Transactions as of
27 Feb 2026
Net transactions value
-$136,506
Form type
4
Filing time
03 Mar 2026, 19:01:47 UTC
Previous filing
22 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
WALSH MATTHEW M Chief Financial Officer C/O ORGANON & CO., 30 HUDSON STREET, FLOOR 33, JERSEY CITY /s/ Faye C. Brown, as Attorney-in-Fact for Matthew M. Walsh 03 Mar 2026 0001269428

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OGN Common Stock Award $0 +42,599 +29% $0.000000 187,083 27 Feb 2026 Direct F1
transaction OGN Common Stock Tax liability $106,740 -14,887 -8% $7.17 172,196 27 Feb 2026 Direct
transaction OGN Common Stock Award $0 +12,020 +7% $0.000000 184,216 27 Feb 2026 Direct F2
transaction OGN Common Stock Tax liability $29,766 -4,117 -2.2% $7.23 180,751 27 Feb 2026 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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.
F2 Represents the shares of Common Stock released to cover the dividend equivalents earned on the PSUs released above.
F3 Includes the addition of 652 shares of Common Stock acquired from dividend equivalents net of withholding tax not previously required to be reported.

Remarks:

Exhibit 24 - Power of Attorney