ATHERSYS INC

CUSIP: 04744L106 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q2 2018
Shares 2,500 Value ($000) $5 Avg Close — Range —
Q1 2018
Shares 2,500 Value ($000) $5 Avg Close — Range —
Q4 2017
Shares 18,544 Value ($000) $34 Avg Close — Range —
Q3 2017
Shares 2,500 Value ($000) $5 Avg Close — Range —
Q2 2017
Shares 2,500 Value ($000) $4 Avg Close — Range —
Q1 2017
Shares 2,500 Value ($000) $4 Avg Close — Range —
Q4 2016
Shares 2,500 Value ($000) $4 Avg Close — Range —
Q3 2016
Shares 2,500 Value ($000) $5 Avg Close — Range —
Q2 2016
Shares 2,500 Value ($000) $5 Avg Close — Range —
Q1 2016
Shares 2,500 Value ($000) $6 Avg Close — Range —