Celldex Therapeutics Inc is a biopharmaceutical company. It is focused on the development and commercialization of several immunotherapy technologies and other cancer-targeting biologics. The company is also engaged in clinical trials for products targeting breast cancer, metastatic melanoma, lung cancer, solid tumors, and ovarian cancer. It has single operating and reportable segment that operates in the business of development, manufacturing and commercialization of novel therapeutics for human health care.