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; An acquisition or disposal of financial instruments 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 12-Aug-2025 6. Date on which Issuer notified 14-Aug-2025 7. Total positions of person(s) subject to the notification obligation % of voting % of voting rights Total number of rights attached to through financial Total of both in voting rights held . shares (total of instruments (total % (8.A + 8.B) in issuer 8.A) of 8.B 1 + 8.B 2) Resulting situation on the date on which threshold 0.676686 4.519581 5.196267 69449562 was crossed or reached Position of previous N/A N/A N/A 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 voting % of indirect voting rights shares ISIN code(if voting rights voting rights rights (DTR5.1) (DTR5.2.1) possible) (DTR5.1) (DTR5.2.1) GB00BYRJ5J14 9044195 0.676686 Sub Total 8.A 9044195 0.676686% 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 financial Expiration date Exercise/convers physical or cash Number of instrument ion period settlement voting rights % of voting rights Cash-settled 22/09/2025 22/09/2025 Cash 164922 0.012338 Equity Swap Cash-settled 01/10/2025 01/10/2025 Cash 706002 0.052824 Equity Swap Cash-settled 28/11/2025 28/11/2025 Cash 6272938 0.469358 Equity Swap Cash-settled 02/06/2026 02/06/2026 Cash 3605381 0.269762 Equity Swap Cash-settled 24/06/2026 24/06/2026 Cash 11189211 0.837160 Equity Swap Cash-settled 02/07/2026 02/07/2026 Cash 5816177 0.435174 Equity Swap Cash-settled 15/07/2026 15/07/2026 Cash 968574 0.072470 Equity Swap Cash-settled 16/07/2026 16/07/2026 Cash 14906 0.001114 Equity Swap Cash-settled 17/07/2026 17/07/2026 Cash 4303997 0.322028 Equity Swap Cash-settled 27/07/2026 27/07/2026 Cash 4640450 0.347207 Equity Swap Cash-settled 13/08/2026 13/08/2026 Cash 289875 0.021684 Equity Swap Cash-settled 19/08/2026 19/08/2026 Cash 98265 0.007352 Equity Swap Cash-settled 24/08/2026 24/08/2026 Cash 17008721 1.272622 Equity Swap Cash-settled 09/09/2026 09/09/2026 Cash 386500 0.028918 Equity Swap Cash-settled 16/09/2026 16/09/2026 Cash 137681 0.010299 Equity Swap Cash-settled 23/09/2026 23/09/2026 Cash 2970523 0.222260 Equity Swap Cash-settled 05/10/2026 05/10/2026 Cash 644 0.000048 Equity Swap Cash-settled 14/04/2027 14/04/2027 Cash 878724 0.065744 Equity Swap Cash-settled 30/05/2028 30/05/2028 Cash 1472 0.000108 Equity Swap Cash-settled 02/05/2030 02/05/2030 Cash 949760 0.071063 Equity Swap Cash-settled 10/08/2035 10/08/2035 Cash 644 0.000048 Equity Swap Sub Total 8.B2 60405367 4.519581% 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 rights if it through financial Total of both if it Ultimate controlling Name of controlled equals or is instruments if it equals or is higher person undertaking higher than equals or is higher than the notifiable the notifiable than the notifiable threshold threshold threshold JPMorgan J.P. Morgan 4.519533 5.196265% Chase & Co. Securities plc JPMorgan J.P. Morgan SE Chase & Co. J.P. Morgan Equities South JPMorgan Africa Chase & Co. Proprietary Limited JPMorgan JPMorgan Chase Bank, Chase & Co. National 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 14-Aug-2025 13. Place Of Completion London, United Kingdom 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 09:30:00 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.