X0306 4 2016-06-17 0 0001368148 ATHERSYS, INC / NEW ATHX 0001402605 Campbell Laura K 3201 CARNEGIE AVENUE CLEVELAND OH 44115-2634 0 1 0 0 Senior Vice Pres Finance Common Stock 2016-06-17 4 F 0 10118 2.16 D 420535 D Common Stock 2016-06-20 4 A 0 67792 0.00 A 488327 D Employee Stock Option 2.19 2016-06-20 4 A 0 158208 0.00 A 2026-06-20 Common Stock 158208 158208 D Shares withheld from the quarterly vesting of a June 2013 restricted stock unit award related to the minimum tax withholding obligation. Award of annual restricted stock units, each of which represents a contingent right to receive one share of Athersys, Inc. common stock after vesting. The restricted stock units vest ratably on a quarterly basis over a four-year period. Securities beneficially owned are comprised of: (1) 363,987 shares of common stock owned and (2) unvested restricted stock units aggregating 124,340 related to annual awards, which vest quarterly over a four-year period from grant date. Award of an annual stock option. The option vests ratably on a quarterly basis over a four-year period. /s/ Laura K. Campbell 2016-06-21