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. Lighthouse Investments Netherlands B.V. Lighthouse Netherlands B.V. 5. Date on which the threshold was crossed or reached 09-Apr-2024 6. Date on which Issuer notified 10-Apr-2024 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 held to shares (total instruments % (8.A + 8.B) in issuer of 8.A) (total of 8.B 1 + 8.B 2) Resulting situation on the date on which 11.510000 0.000000 11.510000 574293788 threshold was crossed or reached Position of previous notification (if 12.700000 0.000000 12.700000 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 Number of Class/Type of Number of direct % of indirect indirect voting % of direct voting shares ISIN code(if voting rights voting rights rights rights (DTR5.1) possible) (DTR5.1) (DTR5.2.1) (DTR5.2.1) GB00BK7YQK64 574293788 11.510000 Sub Total 8.A 574293788 11.510000% 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 rights % of voting through financial Total of both if it Name of rights if it equals instruments if it Ultimate equals or is higher controlled or is higher than equals or is controlling person than the notifiable undertaking the notifiable higher than the threshold threshold notifiable threshold Lighthouse Lighthouse Properties plc Properties plc 11.510000 11.510000% Lighthouse Lighthouse Properties 11.510000 11.510000% Properties plc One Limited Lighthouse Lighthouse Netherlands 3.330000 3.330000% Properties plc B.V. Lighthouse Lighthouse Investments 3.610000 3.610000% Properties plc Netherlands B.V. Lighthouse Lighthouse Netherlands 4.570000 4.570000% 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 10-Apr-2024 13. Place Of Completion Amsterdam For further information contact: Kim Panisales Assistant Company Secretary Tel: +44 (0)20 7887 1000 10 April 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: 10-04-2024 05:30:00 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.