Business
Holding(s) in Company
Mr D R and Mrs D A Hardy have acquired voting rights in Serica Energy PLC, increasing their holding to 8.02% of the total 393,568,408 voting rights. This acquisition, which crossed the notification threshold on November 20, 2025, represents an increase from their previous holding of 7.99%. The notification was made on November 21, 2025. Disclaimer*
About this update from Serica Energy Plc
TR-1: S tandard form for notification of major holdings NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible) i 1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached ii : Serica Energy plc 1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate) Non-UK issuer 2. Reason for the notification (please mark the appropriate box or boxes with an "X") An acquisition or disposal of voting rights X An acquisition or disposal of financial instruments An event changing the breakdown of voting rights Other (please specify) iii : 3. Details of person subject to the notification obligation iv Name Mr D R and Mrs D A Hardy City and country of registered office (if applicable) n/a 4. Full name of shareholder(s) (if different from 3.) v Name City and country of registered office (if applicable) 5. Date on which the threshold was crossed or reached vi : 20 November 2025 6. Date on which issuer notified (DD/MM/YYYY): 20 November 2025 7. Total positions of person(s) subject to the notification obligation % of voting rights attached to shares (total of 8. A) % of voting rights through financial instruments (total of 8.B 1 + 8.B 2) Total of both in % (8.A + 8.B) Total number of voting rights of issuer vii Resulting situation on the date on which threshold was crossed or reached 8.02% 8.02% 393,568,408 Position of previous notification (if applicable)* 7.99% 7.99% * Previous notification made on 2 April 2019, prior to the Company's acquisition of Tailwind Energy Investments Ltd which included the issuance of shares in Serica Energy plc. The previous position of 7.99% above reflects shares held prior to the acquisition of shares which crossed the notification threshold 8. Notified details of the resulting situation on the date on which the threshold was crossed or reached viii A: Voting rights attached to shares Class/type of shares ISIN code (if possible) Number of voting rights ix % of voting rights Direct (Art 9 of Directive 2004/109/EC) (DTR5.1) Indirect (Art 10 of Directive 2004/109/EC) (DTR5.2.1) Direct (Art 9 of Directive 2004/109/EC) (DTR5.1) Indirect (Art 10 of Directive 2004/109/EC) (DTR5.2.1) GB00B0CY5V57 31,559,133 8.02% SUBTOTAL 8. A 31,559,133 8.02% B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1 (a)) Type of financial instrument Expiration date x Exercise/ Conversion Period xi Number of voting rights that may be acquired if the instrument is exercised/converted. % of voting rights SUBTOTAL 8. B 1 B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b)) Type of financial instrument Expiration date x Exercise/ Conversion Period xi Physical or cash settlement xii Number of voting rights % of voting rights SUBTOTAL 8.B.2 9. Information in relation to the person subject to the notification obligation (please mark the applicable box with an "X") Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer xiii 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 entity xiv (please add additional rows as necessary) X Name xv % of voting rights if it equals or is higher than the notifiable threshold % of voting rights through financial instruments if it equals or is higher than the notifiable threshold Total of both if it equals or is higher than the notifiable threshold Mr D R and Mrs D A Hardy 8.02% 8.02% 10. In case of proxy voting, please identify: 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 xvi Place of completion United Kingdom Date of completion 21 November 2025