BioTime, Inc. is a clinical-stage biotechnology company headquartered in Alameda, California. BioTime stock is traded on the New York Stock Exchange American Exchange under ticker symbol BTX. BioTime focuses primarily on aesthetics, ophthalmology  and cell and drug delivery.
In 2007, the company appointed Michael D. West, Ph.D, as chief executive officer. West had been CSO and CEO of Advanced Cell Technology, which later changed its name to Ocata Therapeutics and was sold to Astellas Pharma in 2016. Prior to that had founded Geron.
BioTime's subsidiaries include:
- Asterias Biotherapeutics, which is re-initiating Geron's stem cell trial for spinal cord injury using the stem cell assets acquired from Geron in 2013. The CEO of this subsidiary is Pedro Lichtinger, former CEO of Optimer Pharmaceuticals, which along with Trius Therapeutics was acquired by Cubist Pharmaceuticals for $1.6 billion in July 2013. Asterias Biotherapeutics stock is traded on the New York Stock Exchange market exchange.
- OncoCyte Corp., which is developing products for the diagnosis and treatment of cancer. OncoCyte stock is traded on the New York Stock Exchange" market exchange
- AgeX Therapeutics, a former subsidiary
Board of directors
BioTime’s Board of Directors includes:
- Neal Bradsher. A chartered financial analyst (CFA), Bradsher is founder and president of Broadwood Capital. He was a board member of Questcor Pharmaceuticals until it was acquired by acquired by Mallinckrodt Pharmaceutics for $5.6 Billion in August 2014.
- Stephen C. Farrell, CEO of Convey Health Solutions, and a former director of chairman of the audit committee of Questcor Pharmaceuticals, which was acquired by Mallinckrodt Pharmaceutics for $5.6 Billion in August 2014. Farrell formerly served as president of PolyMedica Corp., until it was acquired for $1.5 Billion in 2007 by Medco Health Solutions, the largest pharmacy benefit manager in the U.S.
- Alfred Kingsley, chairman of the board. He is general partner of Greenway Partners LP and was formerly a senior advisor to billionaire investor Carl Icahn from 1968 to 1992.
- Michael H. Mulroy, a business consultant. He formerly served as executive vice president of Mallinckrodt plc following its acquisition of Questcor Pharmaceuticals in August 2014. Mulroy held a variety of positions at Questcor including General Counsel and Chief Financial Officer.
- Angus Russell, the retired Chief Executive Officer of Shire plc, a multinational specialty biopharmaceutical manufacturing company
- Nasdaq Biotechnology Index
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