Item 5 – Other Information
−Removed: During the three months ended September 30, 2025 , no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.
+Added: During the three months ended March 31, 2026 , no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.
Item 6 – Exhibits
7 unchanged sentences
STEPAN COMPANY
−Removed: November 5, 2025
−Removed: /s/ Ruben Velasquez
−Removed: Ruben Velasquez
Vice President and Chief Financial Officer
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.