ATHERSYS INC

CUSIP: 04744L106 Class: COM

EVENTIDE ASSET MANAGEMENT, LLC's Holding History (CIK: 0001442891)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014
Shares 265,300 Value ($000) $860 Avg Close — Range —
Q4 2013
Shares 177,100 Value ($000) $443 Avg Close — Range —