Mural Oncology Announces Entry into Agreement to be Acquired by XRA 5 Corp., a wholly owned subsidiary of XOMA Royalty for between $2.035 and $2.24 in Cash per Share

WALTHAM, Mass. and DUBLIN and EMERYVILLE, Calif., Aug. 20, 2025 (GLOBE NEWSWIRE) -- Mural Oncology plc (Nasdaq: MURA), a clinical-stage immuno-oncology company (“Mural”), and XOMA Royalty Corporation (Nasdaq: XOMA), a biotechnology royalty aggregator (“XOMA Royalty”), announced today they have entered into a definitive 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 for cash (the “Acquisition”) subject to the satisfaction of the closing conditions set out in Appendix I of this Announcement (the “Conditions”), including approval by Mural Shareholders. Following a strategic review process, the Mural board of directors (the “Mural Board”) determined the acquisition and cash offer by XOMA Royalty is in the best interests of all Mural Shareholders and has approved the Acquisition. The Acquisition has also been approved by the boards of directors of XOMA Roy