Osiris Therapeutics, Inc. is a medical products company. The Company is focused on developing and marketing products in regenerative medicine, including bioengineering, stem cell research and viable tissue based products. The Company's offers products in orthopedics, sports medicine and wound care, including Cartiform, BIO4 and Grafix. Cartiform is a viable chondral allograft containing viable chondrocytes, chondrogenic growth factors, and extracellular matrix proteins within the intact architecture of healthy hyaline cartilage. BIO4 is a bone allograft that contains both viable cells and growth factors. It is a safe alternative to autograft that minimizes the potential for harvest site co-morbidities. Grafix is a cryopreserved placental membrane that preserves the native properties and inherent functionality of the tissue.