| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Stepan Richard Finn | V.P. and Gen'l. Mgr., Polymers | 1101 SKOKIE BOULEVARD, SUITE 500, NORTHBROOK | /s/ James A. Hart, attorney-in-fact for Richard F. Stepan | 29 Dec 2025 | 0001839533 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SCL | Common Stock | Gift | $0 | +96 | +0.04% | $0.000000 | 241,116 | 23 Dec 2025 | Direct | |
| holding | SCL | Common Stock | 43,439 | 23 Dec 2025 | By Daughter | ||||||
| holding | SCL | Common Stock | 43,439 | 23 Dec 2025 | By Daughter | ||||||
| holding | SCL | Common Stock | 43,439 | 23 Dec 2025 | By Son | ||||||
| holding | SCL | Common Stock | 5,174 | 23 Dec 2025 | By Spouse | ||||||
| holding | SCL | Common Stock | 95,416 | 23 Dec 2025 | By Trust | ||||||
| holding | SCL | Common Stock | 1,238 | 23 Dec 2025 | By ESOP II Trust |