PureTech Health Plc engages in the provision of differentiated medicines for devastating diseases, including inflammatory, fibrotic and immunological conditions, intractable cancers, lymphatic and gastrointestinal diseases and neurological and neuropsychological disorders. It operates through the following segments: Internal, Controlled Founded Entities, Non-Controlled Founded Entities, and Parent Company and Others. The Internal segment focuses on immunological, fibrotic, and lymphatic system mechanisms.