Osiris Therapeutics, Inc. (NASDAQ: OSIR), the leading cellular and regenerative medicine company focused on developing and marketing products to treat conditions in wound care, orthopaedics and sports medicine, announced today that it is evaluating the establishment of an international, ex-U.S. subsidiary in recognition of its expanding research and commercial business operations. The Company is currently evaluating different locations, including United Kingdom, Singapore and Switzerland.

About Osiris Therapeutics

Osiris Therapeutics, Inc., based in Columbia, Maryland, is the world leader in researching, developing and marketing regenerative medicine products that improve health and lives of patients and lower overall healthcare costs. Having developed the world’s first approved stem cell drug, the company continues to advance its research and development in biotechnology by focusing on innovation in regenerative medicine – including bioengineering, stem cell research and viable tissue based products. Osiris has achieved commercial success with products in orthopaedics, sports medicine and wound care, including BIO4 ™, Cartiform® and Grafix®.

Osiris, Grafix, and Cartiform are registered trademarks of Osiris Therapeutics, Inc. BIO4 is a trademark of Stryker Corporation (NYSE: SYK). More information can be found on the company's website, www.Osiris.com. (OSIR-G)

Forward-Looking Statements

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