Notification Of Share Buyback Programme Hammerson plc (Incorporated in England and Wales) (Company number 360632) LSE and Euronext Dublin share code: HMSO JSE share code: HMN ISIN: GB00BRJQ8J25 ("Hammerson" or "the Company") 16 October 2024 FOR IMMEDIATE RELEASE Hammerson plc (the "Company") NOTIFICATION OF SHARE BUYBACK PROGRAMME Further to the Company's announcement on 22 July 2024, the Company announces that it will today commence a programme to purchase its ordinary shares of 5 pence each up to a maximum consideration of £140 million (the "Share Buyback Programme"). The sole purpose of the Share Buyback Programme is to reduce the Company's share capital. To the extent permitted by law, ordinary shares purchased under the Share Buyback Programme will be cancelled. For the purpose of the Share Buyback Programme, the Company has entered into an instruction to Morgan Stanley & Co. International Plc ("Morgan Stanley") in relation to the purchase by Morgan Stanley, acting as principal, of ordinary shares and the simultaneous on-sale of such ordinary shares by Morgan Stanley to the Company. The Share Buyback Programme will commence on 16 October 2024 and will end no later than 16 October 2026. Any purchase of ordinary shares under the Share Buyback Programme will be executed in accordance with the relevant regulations (including but not limited to the UK Listing Rules) and the Company's general authority to make market purchases of ordinary shares. The Company will announce any market repurchase of ordinary shares no later than 7.30 a.m. (UK Time) on the business day following the calendar day on which the repurchase occurs. Contact: Josh Warren Director of Strategy, Commercial Finance and Investor Relations Tel: +44 20 7887 1053 josh.warren@hammerson.com Richard Crowle Senior Assistant Company Secretary Tel: +44 20 7887 1000 Richard.crowle@hammerson.com This announcement does not constitute, or form part of, an offer or any solicitation of an offer for securities in any jurisdiction. Hammerson has its primary listing on the London Stock Exchange and secondary inward listings on the Johannesburg Stock Exchange and Euronext Dublin. Sponsor: Investec Bank Limited Date: 16-10-2024 08:00:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.