Gregg Beloff

ImmunoGen, Inc. engages in the discovery and development of antibody-drug conjugates to improve outcomes for cancer patients. Its pipeline includes Mirvetuximab Soravtansine, IMGN632, IMGC936, and IMGN151. The company was founded on March 27, 1981 and is headquartered in Waltham, MA.

Archemix Corp. engages in the research and development of aptamer-based therapeutic products. It focuses in the areas of cardiovascular disease hematology, and oncology. The company was founded in May 2001 and is headquartered in Cambridge, MA.

Neurovance, Inc. operates as a a biopharmaceutical company. It develops treatments for central nervous system disorders. The company was founded by Anthony McKinney and Franklin P. Bymaster in 2011 and is headquartered in Cambridge, MA.

Cerulean Pharma, Inc. is a clinical-stage, oncology-focused company, which provides proprietary Dynamic Tumor Targeting Platform to develop differentiated therapies. It specializes in the design and development of nanopharmaceuticals. Cerulean's nanopharmaceuticals are drug-containing nanoparticles designed and optimized to enhance therapeutic agents, ranging from small molecules to therapeutic peptides and RNAi molecules. The company was founded by Alan L. Crane and Ram Sasisekharn on November 28, 2005 and is headquartered in Waltham, MA.

Danforth Advisors LLC provides advisory services. It offers finance support and stratigic consultation services for life science firm. The company was founded by Gregg Beloff and Daniel Geffken and is headquartered in Southborough, MA.

SG DAN Holdings LLC operates as an investment holding firm. The company is headquartered in New York, NY.