BioTime Warrants to Expire on October 1, 2018

BioTime, Inc. (NYSE American: BTX), a clinical-stage biotechnology company focused on degenerative diseases, is advising the holders of its publicly traded warrants (NYSE American: BTX.WS) that the warrants will expire and not be exercisable after 5:00 p.m., New York City time, on October 1, 2018 (the "Expiration Date”).

A warrant holder can obtain information on exercising the warrants by contacting their broker or American Stock Transfer & Trust Company, LLC., BioTime’s warrant agent. Brokers are encouraged to contact the warrant agent to confirm the procedures for exercising the warrants.

The NYSE has notified Biotime that trading in the warrants on the NYSE will be suspended after the close of business on September 26, 2018 to ensure all trades in the warrants settle in time to allow the purchasers of such warrants to exercise the warrants on or before the Expiration Date.

About BioTime, Inc.

BioTime is a clinical-stage biotechnology company focused on degenerative diseases. Its clinical programs are based on two platform technologies: cell replacement and cell/drug delivery. With its cell replacement platform, BioTime is producing new cells and tissues with its proprietary pluripotent cell technologies. These cells and tissues are developed to replace those that are either rendered dysfunctional or lost due to degenerative diseases or injuries. BioTime’s cell/drug delivery programs are based upon its proprietary HyStem^® cell and drug delivery hydrogel matrix technology. HyStem^® was designed, in part, to provide for the transfer, retention and/or engraftment of cellular replacement therapies. HyStem^® is a unique hydrogel that has been shown to support cellular attachment and proliferation in vivo. Current research at leading medical institutions has shown that HyStem^® is compatible with a wide variety of cells and tissue types including brain, bone, skin, cartilage, vascular and heart tissues. Due to the unique cross-linking chemistry, HyStem^® hydrogels have the ability to mix cells, biologics and small molecule drugs and can be injected or applied as a gel which allows the hydrogel to conform to a cavity or space. This property of HyStem^® hydrogels offers several distinct advantages over other hydrogels, including the possibility of combining bioactive materials with the hydrogel at the point of use. BioTime is also developing HyStem^® for the delivery of therapeutic drugs and cells to localized areas of the body, including for sustained drug release in the targeted anatomical sites. BioTime’s lead cell delivery clinical program is Renevia^®, which consists of HyStem^® combined with the patient’s own adipose (fat) derived tissue or cells. Renevia^® met its primary endpoint in an EU pivotal clinical trial for the treatment of facial lipoatrophy in HIV patients in 2017. BioTime has submitted Renevia^® for CE Mark approval in the EU. There were no device related serious adverse events reported to date. BioTime’s lead cell replacement product candidate is OpRegen^®, a retinal pigment epithelium transplant therapy, which is in a Phase I/IIa multicenter clinical trial for the treatment of dry age-related macular degeneration, the leading cause of blindness in the developed world. There have been no unexpected serious adverse events reported to date. BioTime also has significant equity holdings in two publicly traded companies, Asterias Biotherapeutics, Inc. (NYSE American: AST) and OncoCyte Corporation (NYSE American: OCX), and a private company, AgeX Therapeutics, Inc.

BioTime common stock is traded on the NYSE American and TASE under the symbol BTX. For more information, please visit www.biotime.com or connect with the company on Twitter, LinkedIn, Facebook, YouTube, and Google+.

To receive ongoing BioTime corporate communications, please click on the following link to join the Company’s email alert list: http://news.biotime.com.

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