TR-1: Standard form for notification of major holdings Primary Health Properties PLC (Incorporated in the United Kingdom) Company Number: 3033634 LSE Share Code: PHP JSE Share Code: PHP ISIN Code: GB00BYRJ5J14 LEI: 213800Y5CJHXOATK7X11 ("PHP" or the "Company") TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GB00BYRJ5J14 Issuer Name PRIMARY HEALTH PROPERTIES PLC UK or Non-UK Issuer UK 2. Reason for Notification An acquisition or disposal of voting rights 3. Details of person subject to the notification obligation Name JPMorgan Chase & Co. City of registered office (if applicable) Country of registered office (if applicable) US 4. Details of the shareholder Name City of registered office Country of registered office J.P. Morgan Securities plc 5. Date on which the threshold was crossed or reached 14-Aug-2025 6. Date on which Issuer notified 18-Aug-2025 7. Total positions of person(s) subject to the notification obligation % of voting % of voting rights rights attached to through financial Total of both in Total number of voting . shares (total of instruments (total % (8.A + 8.B) rights held in issuer 8.A) of 8.B 1 + 8.B 2) Resulting situation on the date on Below Below Below Below minimum which threshold minimum minimum minimum threshold was crossed or threshold threshold threshold reached Position of previous 0.676686 4.519581 5.196267 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 indirect % of direct % of indirect voting rights shares ISIN code(if voting rights voting rights voting rights (DTR5.2.1) possible) (DTR5.1) (DTR5.2.1) (DTR5.1) GB00BYRJ5J14 Below minimum Below minimum threshold threshold Sub Total 8.A Below minimum threshold Below minimum threshold 8B1. Financial Instruments according to (DTR5.3.1R.(1) (a)) Type of financial Expiration Exercise/conversion Number of voting rights that may be instrument date period acquired if the instrument is % of voting rights 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 voting % of voting rights financial date period settlement 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 Ultimate rights if it equals Total of both if it equals or Name of controlled instruments if it Controlling or is higher than is higher than the notifiable undertaking equals or is higher person the notifiable threshold than the notifiable threshold threshold JPMorgan J.P. Morgan Chase & Co. Securities plc JPMorgan J.P. Morgan SE Chase & Co. J.P. Morgan JPMorgan Equities South Chase & Co. Africa Proprietary Limited JPMorgan Chase JPMorgan Bank, National Chase & Co. Association 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 Chain of controlled undertakings: JPMorgan Chase & Co. JPMorgan Chase Bank, National Association (100%) J.P. Morgan International Finance Limited (100%) J.P. Morgan Capital Holdings Limited (100%) J.P. Morgan Securities plc (100%) JPMorgan Chase & Co. JPMorgan Chase Bank, National Association (100%) J.P. Morgan International Finance Limited (100%) J.P. Morgan SE (100%) JPMorgan Chase & Co. JPMorgan Chase Bank, National Association (100%) J.P. Morgan International Finance Limited (100%) J.P. MORGAN CAPITAL HOLDINGS LIMITED (100%) J.P. Morgan Equities South Africa Proprietary Limited (100%) JPMorgan Chase & Co. JPMorgan Chase Bank, National Association (100%) 12. Date of Completion 18-Aug-2025 13. Place Of Completion London The Company has a primary listing on the London Stock Exchange and a secondary listing on the JSE Limited. United Kingdom 19 August 2025 Sponsor: PSG Capital Date: 19-08-2025 05:00:00 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.