BB Biotech AG provides investment services for biotechnology sector. The company is headquartered in Schaffhausen, Schaffhausen and currently employs 86 full-time employees. The company went IPO on 2006-11-08. BB Biotech AG invests mainly in companies operating in such sectors as oncology, infectious diseases, cardiovascular diseases, metabolic diseases and autoimmune diseases. The Company’s portfolio comprises between 20 and 35 companies and includes such companies as Celgene, Actelion, Vertex Pharmaceuticals, Gilead, Novo Nordisk, Incyte, Isis Pharmaceuticals, Immunogen, Halozyme Therapeutics, Ariad Pharmaceuticals, Biomarin Pharmaceutical, Alexion Pharmaceuticals, Optimer Pharmaceuticals, Achillion Pharmaceuticals, Swedish Orphan Biovitrum, Dendreon, Bavarian Nordic, Lupin, Glenmark Pharmaceuticals, Strides Arcolab, Endocyte, Probiodrug, and Idenix Pharmaceuticals.