Athersys to Host First Quarter Financial Results Call

Athersys, Inc. (Nasdaq:ATHX) will release its first quarter 2015 financial results at approximately 4:00 PM EDT on Monday, May 11, 2015, and host a conference call shortly thereafter at 4:30 PM EDT to review the results. Gil Van Bokkelen, Chairman and Chief Executive Officer, and William (B.J.) Lehmann, President and Chief Operating Officer, will host the call as follows:

Date	May 11, 2015
Time	4:30 p.m. (Eastern Time)
Telephone access: US and Canada	800-273-1254
Telephone access: International	973-638-3440
Access code	22710389
Live webcast	www.athersys.com under Investors section

A replay will be available for on-demand listening shortly after the completion of the call until 11:59 PM EDT on May 25, 2015 at the aforementioned URL, or by dialing 800-585-8367 or 855-859-2056 in the U.S. and Canada, or from abroad 404-537-3406, and entering access code 22710389.

About Athersys

Athersys is an international biotechnology company engaged in the discovery and development of therapeutic product candidates designed to extend and enhance the quality of human life. The Company is developing its MultiStem® cell therapy product, a patented, adult-derived "off-the-shelf" stem cell product, initially for disease indications in the cardiovascular, neurological, inflammatory and immune disease areas, and has several ongoing clinical trials evaluating this potential regenerative medicine product. Athersys has forged strategic partnerships and collaborations with leading pharmaceutical and biotechnology companies, as well as world-renowned research institutions to further develop its platform and products. More information is available at www.athersys.com.

CONTACT: William (B.J.) Lehmann, J.D.
         President and Chief Operating Officer
         Tel: [phone]
         [e-mail]