STEPAN CO 10-Q

Item 2 – Unregistered Sales of Equity Securities and Use of Proceeds Below is a summary by month of share purchases by the Company during the first quarter of 2026: Month Total Number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1) Approximate Dollar Value of Shares That May Yet be Purchased Under the Plans or Programs (1) January 2026 33,795 (2) $ 51.56 — $ 125,050,905 February 2026 36,172 (3) $ 57.73 — $ 125,050,905 March 2026 9,732 (4) $ 49.12 — $ 125,050,905 Total 79,699 $ 54.06 — $ 125,050,905 (1) On October 20, 2021, the Company announced that its Board of Directors had authorized the Company to repurchase up to $150,000,000 of its outstanding common stock. Under this program, which does not have an expiration date, repurchases may be made from time to time through open market transactions, privately negotiated transactions or a combination of the foregoing, subject to applicable laws. (2) Includes 904, 908 and 31,983 shares of the Company's common stock surrendered by employees to settle statutory withholding taxes related to the distribution of deferred management incentive compensation, the exercise of stock appreciation rights and shares tendered in lieu of cash for stock option exercises, respectively. (3) Includes 8,183, 25,873, 882 and 1,234 shares of the Company's common stock surrendered by employees to settle statutory withholding taxes related to the distribution of deferred management incentive compensation, the distribution of deferred performance shares, the distribution of restricted stock units and the exercise of stock appreciation rights, respectively. (4) Represents shares of the Company's common stock surrendered by employees to settle statutory withholding taxes related to the distribution of restricted stock units. Item 3 – Defaults Upon Senior Securities None Item 4 – Mine Safety Disclosures Not applicable