X0609 4 2026-05-08 0000094049 STEPAN CO SCL 0001418244 Dearth Randall S. false 1101 SKOKIE BOULEVARD, SUITE 500 NORTHBROOK IL 60062 1 0 Common Stock 2026-05-08 4 A 0 2566 52.61 A 16672 D /s/ James A. Hart, Attorney-in-fact for Randall S. Dearth 2026-05-12