ATHERSYS INC

CUSIP: 04744L106 Class: COM

PERKINS CAPITAL MANAGEMENT INC's Holding History (CIK: 0000884300)

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

Q2 2022
Shares 68,000 Value ($000) $18 Avg Close — Range —
Q1 2022
Shares 72,000 Value ($000) $44 Avg Close — Range —
Q4 2021
Shares 59,000 Value ($000) $53 Avg Close — Range —
Q3 2021
Shares 23,500 Value ($000) $31 Avg Close — Range —
Q2 2021
Shares 23,500 Value ($000) $34 Avg Close — Range —
Q1 2021
Shares 17,000 Value ($000) $31 Avg Close — Range —
Q4 2020
Shares 13,500 Value ($000) $24 Avg Close — Range —
Q3 2020
Shares 13,500 Value ($000) $26 Avg Close — Range —
Q1 2020
Shares 14,000 Value ($000) $42 Avg Close — Range —
Q4 2019
Shares 23,000 Value ($000) $28 Avg Close — Range —
Q3 2019
Shares 14,000 Value ($000) $19 Avg Close — Range —
Q4 2018
Shares 15,000 Value ($000) $22 Avg Close — Range —
Q3 2018
Shares 21,000 Value ($000) $44 Avg Close — Range —
Q2 2018
Shares 226,100 Value ($000) $445 Avg Close — Range —
Q1 2018
Shares 205,375 Value ($000) $376 Avg Close — Range —
Q4 2017
Shares 363,375 Value ($000) $658 Avg Close — Range —
Q3 2017
Shares 308,725 Value ($000) $636 Avg Close — Range —