LA DÉFENSE, France–(BUSINESS WIRE)–Regulatory News: In accordance with applicable regulations, Arkema (Paris:AKE) announces having carried out the following share buyback transactions in accordance with Article 5 §2 of Regulation (EU) No 596/2014 from 07 September to 11 September 2026 Name of the issuer Issuer identifier code Day of the transaction Financial instrument identifier code Total daily volume (number of shares) Weighted average price of daily acquisition Market identifier code ARKE