Romania-based radiotherapy treatment provider Amethyst Radiotherapy has secured an investment from emerging markets-focused alternative asset manager The Rohatyn Group (TRG). The company operates nine clinics across France, Romania, Italy, Poland, and Austria. TRG’s investment will be used to accelerate Amethyst’s growth across Europe through add-on acquisitions, the development of greenfield centers, and new partnerships with hospitals. Financial details of the transaction were not disclosed.