Notification of Share Repurchase

29 June 2026

FOR IMMEDIATE RELEASE

Hammerson plc (the 'Company')

NOTIFICATION OF SHARE REPURCHASE

The Company announces that it will today commence a programme to purchase up to 747 of its ordinary shares of 5 pence each (the 'Maximum Number of Shares') (the 'Share Repurchase'). The sole purpose of the Share Repurchase is to purchase ordinary shares to be used to meet obligations arising from employee share option schemes operated by the Company. To the extent permitted by law, ordinary shares purchased under the Share Repurchase will be held in treasury.

For the purpose of the Share Repurchase, the Company has entered into an instruction with MUFG Corporate Markets ('MUFG') in relation to the purchase by MUFG, acting as agent, of ordinary shares and the simultaneous on-sale of such ordinary shares by MUFG to the Company. The Share Repurchase will commence on 29 June 2026 and will end no later than 30 July 2026.

Any purchase of ordinary shares under the Share Repurchase will be executed in accordance with the relevant regulations (including but not limited to the 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:

Richard Crowle

Deputy Company Secretary

Tel: +44 20 7887 1000

[email protected]

This announcement does not constitute, or form part of, an offer or any solicitation of an offer for securities in any jurisdiction.

The announcement above has also been released on the SENS system of the Johannesburg Stock Exchange and on Euronext Dublin.