| 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/ Tarnetta V. Jones, as Attorney-in-Fact for Matthew M. Walsh | 2025-05-06 | 0001269428 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OGN | Common Stock | Purchase | $101K | +11.4K | +8.57% | $8.82 | 144K | May 5, 2025 | Direct |