Chemical Works of Gedeon Richter Plc

Major Shareholding Notification • Dec 8, 2025

Announcement on Transaction in own Shares

Gedeon Richter Plc. hereby announces that, based on the authorization granted by the Annual General Meeting (resolution of the AGM No. 12/2025. 04. 29.), in order to ensure the share requirements of its employee and management share-based incentive programmes, on 5 December, 2025 the Company has repurchased 10,000 shares on average price of 9,625 HUF/share with the cooperation of UniCredit Bank Hungary Zrt. in the Budapest Stock Exchange.

After the transaction the number of the Company's treasury shares is 3,663,063; the total number of Company shares at Group level held in Treasury is 3,663,063.

Budapest, 8 December, 2025

Gedeon Richter Plc.