ATHERSYS INC

CUSIP: 04744L106 Class: COM

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q3 2021
Shares 13,352 Value ($000) $18 Avg Close — Range —
Q2 2021
Shares 13,352 Value ($000) $19 Avg Close — Range —
Q1 2021
Shares 13,352 Value ($000) $24 Avg Close — Range —
Q4 2020
Shares 13,352 Value ($000) $23 Avg Close — Range —
Q3 2020
Shares 13,352 Value ($000) $26 Avg Close — Range —
Q2 2020
Shares 13,352 Value ($000) $37 Avg Close — Range —
Q2 2015
Shares 4,000 Value ($000) $5 Avg Close — Range —
Q1 2015
Shares 4,000 Value ($000) $11 Avg Close — Range —
Q4 2014
Shares 4,000 Value ($000) $5 Avg Close — Range —
Q3 2014
Shares 4,000 Value ($000) $6 Avg Close — Range —