Mural Oncology Announces Commencement of Mailing of Definitive Proxy Statement and Details of Scheme Meeting and Extraordinary General Meeting

WALTHAM, Mass. and DUBLIN, Ireland, Sept. 23, 2025 (GLOBE NEWSWIRE) -- Mural Oncology plc, (Nasdaq: MURA) (“Mural”), a clinical-stage immuno-oncology company, today announces for the purposes of the Irish Takeover Panel Act, 1997, Takeover Rules 2022 (the “Irish Takeover Rules”), that it has published the definitive proxy statement of Mural relating to the Acquisition described below, which also constitutes a scheme circular under Irish law (the “Proxy Statement”) and that Mural has commenced mailing the Proxy Statement to Mural shareholders.

As previously announced on August 20, 2025, XOMA Royalty Corporation (Nasdaq: XOMA) (“XOMA Royalty”) and Mural entered into a definitive transaction agreement pursuant to which XRA 5 Corp., a newly formed company wholly owned by XOMA Royalty (“Sub”), has agreed to acquire the entire issued and to be issued share capital of Mural (the “Acquisition”) pursuant to an Irish High Court sanctioned “scheme of arrangement” under Chapter 1 of Part 9 of the Irish Companies Act of 2014 (the “Scheme”).

The Proxy Statement contains important information about the Acquisition for Mural shareholders including, among other things, the full terms and conditions of the Acquisition, instructions on how Mural shareholders may attend the meetings and vote in respect of the Acquisition, information required under Section 452 of the Irish Companies Act 2014 and details of the actions to be taken by Mural shareholders in relation to the Scheme.

In accordance with Rule 15(c) of the Irish Takeover Rules, the holders of Mural equity awards have been sent a proposal describing the treatment of the Mural equity awards in the Acquisition. A copy of the Proxy Statement is also being sent to the holders of Mural equity awards with the Rule 15 proposal for informational purposes only.

Copies of the documents referred to above, and all of the documents required to be made available in accordance with Rule 26 of the Irish Takeover Rules, are available on Mural’s website at https://ir.muraloncology.com/strategic-review.

Further, notices convening the scheme meeting of Mural shareholders to consider and vote on the Scheme (the “Scheme Meeting”) and the related extraordinary general meeting (the “EGM”) are contained in the Proxy Statement. The Scheme Meeting will be held on October 24, 2025 at 10:30 a.m. Irish local time. Following this meeting, the EGM will be held at 10:45 a.m. Irish local time (or, if the Scheme Meeting has not concluded by 10:45 a.m. Irish local time, as soon as possible after the conclusion or adjournment of the Scheme Meeting). Both the Scheme Meeting and the EGM will be held at Ten Earlsfort Terrace, Dublin 2, D02 T380, Ireland.