Mereo to Participate in Fireside Chat at the Jefferies Healthcare Conference in London

London, November 13, 2025 – Mereo BioPharma Group plc (NASDAQ: MREO) (“Mereo” or the “Company”), a clinical-stage biopharmaceutical company focused on rare diseases, today announced that Dr. Denise Scots-Knight, Chief Executive Officer, will participate in a fireside chat at the Jefferies Healthcare Conference in London on Monday, November 17, 2025, at 10:00 am ET / 3:00 pm GMT.

A live audio webcast of the fireside chat can be accessed through the Investors section of the Company’s website at www.mereobiopharma.com/investors. An archived replay of the webcast will be available on the Company’s website for two weeks following the live event.