| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| STEPAN F QUINN JR | Director | 1101 SKOKIE BOULEVARD, SUITE 500, NORTHBROOK | /s/ James A. Hart, attorney-in-Fact for F. Quinn Stepan, Jr. | 19 Feb 2026 | 0001229289 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SCL | Share Units | Options Exercise | -7,517 | -17% | 35,650 | 09 Feb 2026 | Common Stock | 7,517 | By Father's Deferred MIP | F1, F2, F3, F4, F5 |
| Id | Content |
|---|---|
| F1 | Share Units are acquired under the Management Incentive Plan ("MIP"), a nonqualified deferred compensation plan that allows participants to defer all or a portion of their annual incentive awards. |
| F2 | Share Units convert on a one-for-one basis into Common Stock. |
| F3 | Share Units are generally payable at end of employment, unless otherwise elected. |
| F4 | Each share unit was the economic equivalent of one share of Stepan Company common stock. On February 9, 2026, 7,517.35 share units were settled in cash. |
| F5 | Shares held by an estate of which the reporting person serves as executor. |