The Vanguard Group's Interest in Senior plc Exceeds 5%

The Vanguard Group, Inc. has publicly disclosed its opening position regarding Senior plc, as detailed in Form 8.3. As of June 30, 2026, Vanguard holds 21,682,061 ordinary shares with a nominal price of 10p each, representing 5.17% of Senior plc's relevant securities. This disclosure is in accordance with Rule 8.3 of the Takeover Code, which mandates reveal for interests representing 1% or more.

The disclosure reports a sale of 7,825 ordinary shares at a unit price of 2.88 GBP. Despite this transaction, Vanguard's stake remains significant. The document clarifies no cash-settled or stock-settled derivative positions currently in effect.

No indemnity or dealing arrangements are noted, and there are no agreements related to options or derivatives concerning voting rights or future securities transactions. Additional documents such as Supplemental Form 8 are not attached to the form.