TR-1: Standard form for notification of major holdings 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") TR-1: Standard form for notification of major holdings This notification has been received by Hammerson Plc pursuant to the relevant shareholder's obligations pursuant to applicable UK law. 1. Issuer Details ISIN GB00BRJQ8J25 Issuer Name HAMMERSON PLC UK or Non-UK Issuer UK 2. Reason for Notification An event changing the breakdown of voting rights 3. Details of person subject to the notification obligation Name APG Asset Management N.V. City of registered office (if applicable) Amsterdam Country of registered office (if applicable) Netherlands 4. Details of the shareholder Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above City of registered office (if applicable) Country of registered office (if applicable) 5. Date on which the threshold was crossed or reached 05-Aug-2025 6. Date on which Issuer notified 06-Aug-2025 7. Total positions of person(s) subject to the notification obligation % of voting % of voting rights through Total number of rights attached financial Total of both in voting rights to shares (total instruments % (8.A + 8.B) held in issuer of 8.A) (total of 8.B 1 + 8.B 2) Resulting situation on the date on which 18.520877 0.000000 18.520877 95304758 threshold was crossed or reached Position of previous notification (if applicable) 8. Notified details of the resulting situation on the date on which the threshold was crossed or reached 8A. Voting rights attached to shares Class/Type of Number of direct Number of % of indirect % of direct voting shares ISIN voting rights indirect voting voting rights rights (DTR5.1) code(if possible) (DTR5.1) rights (DTR5.2.1) (DTR5.2.1) GB00BRJQ8J25 95304758 18.520877 Sub Total 8.A 95304758 18.520877% 8B1. Financial Instruments according to (DTR5.3.1R.(1) (a)) Number of voting rights that % of Type of financial Expiration Exercise/conversion may be acquired if the voting instrument date period instrument is rights exercised/converted Sub Total 8.B1 8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b)) Type of % of Expiration Exercise/conversion Physical or cash Number of financial voting date period settlement voting rights instrument rights Sub Total 8.B2 9. Information in relation to the person subject to the notification obligation Name of % of voting % of voting rights Total of both if it Ultimate controlled rights if it equals through financial equals or is controlling person undertaking or is higher than instruments if it equals higher than the the notifiable or is higher than the notifiable threshold notifiable threshold threshold 10. In case of proxy voting Name of the proxy holder The number and % of voting rights held The date until which the voting rights will be held 11. Additional Information In accordance with the requirements of the FCA's Disclosure Guidance and Transparency Rule 5.6.1A, Hammerson PLC had notified the market that the Company's issued share capital as of Tuesday, 5 August 2025, consists of 515,880,989 ordinary shares, of which 1,300,825 shares are held in treasury. Therefore, the total number of voting rights in the Company as of Tuesday, 5 August 2025 is 514,580,164. Due to non participation in the new issue of shares, our position was diluted. Previously, our % shareholding in Hammerson PLC was 19.7477%. 12. Date of Completion 06-Aug-2025 13. Place Of Completion Zaandam, The Netherlands For further information contact: Richard Crowle Deputy Company Secretary Tel: +44 (0)20 7887 1000 7 August 2025 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: 07-08-2025 09:00:00 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.