Form 8.5 (EPT/RI)-Ricardo PLC

Key Information - The exempt principal trader involved is Investec Bank plc, which is connected to the offeror Ricardo plc as a Joint Advisor and Joint Broker [1] - The dealing date is noted as June 11, 2025 [1] Dealings by the Exempt Principal Trader - Total purchases of ordinary shares amounted to 305,074, with the highest price per unit at 422 and the lowest at 418 [3] - Specific purchases included 286,687 ordinary shares, with the same price range [3] - There were no cash-settled or stock-settled derivative transactions reported [4][5] Other Information - There are no indemnity or option arrangements related to the relevant securities that may influence dealings [9] - No agreements or understandings regarding voting rights or future acquisitions/disposals of relevant securities were reported [10] - The date of disclosure for this information is June 12, 2025 [10]