Vittorio Nisita - 27 Feb 2026 Form 4 Insider Report for Organon & Co. (OGN)

Role
Head of Global Business Svcs
Signature
/s/ Faye C. Brown, as Attorney-in-Fact for Vittorio Nisita
Issuer symbol
OGN
Transactions as of
27 Feb 2026
Net transactions value
-$55,913
Form type
4
Filing time
03 Mar 2026, 19:00:32 UTC
Previous filing
02 Apr 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Nisita Vittorio Head of Global Business Svcs C/O ORGANON & CO., 30 HUDSON STREET, FLOOR 33, JERSEY CITY /s/ Faye C. Brown, as Attorney-in-Fact for Vittorio Nisita 03 Mar 2026 0001859843

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OGN Common Stock Award $0 +16,287 +37% $0.000000 60,109 27 Feb 2026 Direct F1
transaction OGN Common Stock Tax liability $44,526 -6,210 -10% $7.17 53,899 27 Feb 2026 Direct
transaction OGN Common Stock Award $0 +4,596 +8.5% $0.000000 58,495 27 Feb 2026 Direct F2
transaction OGN Common Stock Tax liability $11,387 -1,575 -2.6% $7.23 58,284 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 1,364.619 shares of Common Stock acquired from dividend equivalents net of withholding tax not previously required to be reported.

Remarks:

Exhibit 24 - Power of Attorney