Dimensional Fund Advisors Ltd. : Form 8.3 - SENIOR PLC - Ordinary Shares

Key Information - Dimensional Fund Advisors Ltd. is acting as an investment advisor on behalf of its affiliates and disclaims beneficial ownership of the shares mentioned in the disclosure [1] Positions of the Person Making the Disclosure - Dimensional Fund Advisors holds 10,910,198 shares of Senior PLC, representing 2.60% of the relevant securities [4][5] - The total includes 41,898 shares for which Dimensional does not have discretion regarding voting decisions [5] Other Information - No indemnity or other dealing arrangements were disclosed [13] - There are no agreements or understandings relating to options or derivatives concerning voting rights or future acquisition/disposal of relevant securities [14] - The date of disclosure is 2 March 2026, and the contact for further information is Thomas Hone [15]