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: GB00BK7YQK64 ("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 GB00BK7YQK64 Issuer Name HAMMERSON PLC UK or Non-UK Issuer UK 2. Reason for Notification An acquisition or disposal of financial instruments 3. Details of person subject to the notification obligation Name Lighthouse Properties plc City of registered office (if applicable) Sliema Country of registered office (if applicable) Malta 4. Details of the shareholder City of registered Country of registered Name office office Lighthouse Netherlands Two B.V. Amsterdam Netherlands Lighthouse Investments Netherlands B.V. Amsterdam Netherlands 5. Date on which the threshold was crossed or reached 22-Aug-2024 6. Date on which Issuer notified 26-Aug-2024 7. Total positions of person(s) subject to the notification obligation % of voting % of voting rights Total number Total of both rights attached through financial of voting in % (8.A + to shares (total instruments (total rights held in 8.B) of 8.A) of 8.B 1 + 8.B 2) issuer Resulting situation on the date on which 0.440000 0.000000 0.440000 21970817 threshold was crossed or reached Position of previous notification (if 3.450000 0.000000 3.450000 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 code(if voting rights indirect voting voting rights rights (DTR5.1) possible) (DTR5.1) rights (DTR5.2.1) (DTR5.2.1) GB00BK7YQK64 21970817 0.440000 Sub Total 8.A 21970817 0.440000% 8B1. Financial Instruments according to (DTR5.3.1R.(1) (a)) Number of voting rights that may be Type of financial Exercise/conversion % of voting Expiration date acquired if the instrument period rights instrument is exercised/converted Sub Total 8.B1 8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b)) Type of Expiration Exercise/conversion Physical or cash Number of % of voting financial date period settlement voting rights rights instrument Sub Total 8.B2 9. Information in relation to the person subject to the notification obligation 2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary) % of voting % of voting rights Total of both if it Ultimate Name of controlled rights if it equals through financial equals or is higher controlling person undertaking or is higher than instruments if it than the notifiable the notifiable equals or is higher threshold threshold than the notifiable threshold Lighthouse Lighthouse Properties plc Properties plc 0.440000 0.440000% Lighthouse Lighthouse Properties One 0.440000 0.440000% Properties plc Limited Lighthouse Lighthouse Investments 0.360000 0.360000% Properties plc Netherlands B.V. Lighthouse Lighthouse Netherlands 0.080000 0.080000% Properties plc Two B.V. 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 12. Date of Completion 26-Aug-2024 13. Place Of Completion Amsterdam, Netherlands For further information contact: Kim Panisales Assistant Company Secretary Tel: +44 (0)20 7887 1000 27 August 2024 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: 27-08-2024 12:00:00 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.