ATHERSYS INC

CUSIP: 04744L106 Class: COM

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q1 2022
Shares 34,717 Value ($000) $21 Avg Close Range
Q4 2021
Shares 32,535 Value ($000) $29 Avg Close Range
Q3 2021
Shares 40,686 Value ($000) $54 Avg Close Range
Q2 2021
Shares 30,888 Value ($000) $44 Avg Close Range
Q1 2021
Shares 38,079 Value ($000) $69 Avg Close Range
Q4 2020
Shares 44,089 Value ($000) $77 Avg Close Range
Q3 2020
Shares 27,345 Value ($000) $53 Avg Close Range
Q2 2020
Shares 28,644 Value ($000) $79 Avg Close Range
Q1 2020
Shares 17,010 Value ($000) $51 Avg Close Range
Q4 2019
Shares 18,745 Value ($000) $23 Avg Close Range
Q3 2019
Shares 20,820 Value ($000) $28 Avg Close Range
Q2 2019
Shares 16,020 Value ($000) $27 Avg Close Range
Q1 2019
Shares 15,295 Value ($000) $23 Avg Close Range
Q4 2018
Shares 16,977 Value ($000) $24 Avg Close Range
Q3 2018
Shares 18,850 Value ($000) $40 Avg Close Range
Q2 2018
Shares 16,805 Value ($000) $33 Avg Close Range
Q1 2018
Shares 14,082 Value ($000) $26 Avg Close Range
Q4 2017
Shares 15,724 Value ($000) $28 Avg Close Range
Q3 2017
Shares 14,989 Value ($000) $31 Avg Close Range
Q2 2017
Shares 17,413 Value ($000) $26 Avg Close Range
Q1 2017
Shares 12,595 Value ($000) $22 Avg Close Range
Q4 2016
Shares 12,595 Value ($000) $19 Avg Close Range
Q3 2016
Shares 12,595 Value ($000) $27 Avg Close Range
Q2 2016
Shares 12,595 Value ($000) $27 Avg Close Range