GRIEG SEAFOOD ASA Notification of claim received in connection with sale to Cermaq

Reference is made to the stock exchange announcement on 29 December 2025 regarding Grieg Seafood ASA (the "Company") completing its divestment of operations in Finnmark and Canada (the "Transaction") to Cermaq Group AS ("Cermaq"). The Company has received a formal notification of claim from Cermaq under the share purchase agreement entered into in connection with the Transaction. The claim relates to settlement of certain financial and commercial matters for the period between the locked box date and closing date, with a total indicated quantum of approximately NOK 185 million and CAD 6.6 million. A part of the claim appears to be based on a misunderstanding of the technical settlement in connection with the closing of the Transaction and has been accounted for in the Company's Q4 report. As regards the remaining elements of the claim, the Company rejects these and considers them to be without merit. The claim will have no impact on the dividend as reported on 25 February 2026. For further enquiries, please contact: Nina Willumsen Grieg, CEO Cell phone: +47 953 39 161 Magnus Johannsen, CFO Cell phone +47 959 13 243 About Grieg Seafood ASA Grieg Seafood ASA is one of the world's leading salmon farmers. Following completion of the transaction with Cermaq Group AS, our farms are located in Rogaland in Norway with our headquarter in Bergen, Norway. Grieg Seafood ASA was listed at the Oslo Stock Exchange in June 2007. Sustainable farming practices are the foundation of Grieg Seafood's operations. The lowest possible environmental impact and the best possible fish welfare is both an ethical responsibility and drive economic profitability. To learn more, please visit www.griegseafood.com.

The information included in this announcement may be qualified as inside information pursuant to article 7 of the Market Abuse Regulation and is publicly disclosed in accordance with article 17 of the Market Abuse Regulation and section 5-12 of the Norwegian Securities Trading Act. The stock exchange announcement was published by May Hansen, Executive assistant, Grieg Seafood ASA, on 10 March 2026 at 07:30 CET.