Mosaic Therapeutics appoints Thomas Fuchs as chief executive

20 October 2025

Mosaic Therapeutics has named Thomas Fuchs as chief executive to lead the Cambridge, UK-based oncology biotech through its transition into clinical development and a planned series B fundraising round. He succeeds interim chief executive Magda Jonikas, who will remain on the board as a non-executive director.

Mr Fuchs brings more than 25 years of experience in oncology drug development and commercialization. He most recently served as chief executive at Cimeio Therapeutics, where he oversaw a $50 million series A raise and a strategic collaboration with Japan’s Kyowa Kirin (TSE: 4151). Earlier, he spent 15 years at Roche (ROG: SIX), heading its global haematology franchise, which generated more than $8 billion in annual sales.

Chairman Edward Hodgkin said the appointment would strengthen Mosaic’s leadership and help position the company as a future category leader in precision oncology. Mr Fuchs said he was eager to advance the company’s pipeline and fundraising plans, aiming to bring new combination therapies to cancer patients.

This article is accessible to registered users, to continue reading please register for free.  A free trial will give you access to exclusive features, interviews, round-ups and commentary from the sharpest minds in the pharmaceutical and biotechnology space for a week. If you are already a registered user please login. If your trial has come to an end, you can subscribe here.

Login to your account

Become a subscriber

 

£820

Or £77 per month

Subscribe Now
  • Unfettered access to industry-leading news, commentary and analysis in pharma and biotech.
  • Updates from clinical trials, conferences, M&A, licensing, financing, regulation, patents & legal, executive appointments, commercial strategy and financial results.
  • Daily roundup of key events in pharma and biotech.
  • Monthly in-depth briefings on Boardroom appointments and M&A news.
  • Choose from a cost-effective annual package or a flexible monthly subscription
The Pharma Letter is an extremely useful and valuable Life Sciences service that brings together a daily update on performance people and products. It’s part of the key information for keeping me informed

Chairman, Sanofi Aventis UK

Company News Directory



Companies featured in this story

More ones to watch >




Today's issue

Company Spotlight



More Features in Biotechnology