ATARA BIOTHERAPEUTICS INC

CUSIP: 046513107 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2023
Shares 6,432 Value ($000) $0 Avg Close Range
Q3 2023
Shares 94,974 Value ($000) $0 Avg Close Range
Q2 2023
Shares 45,264 Value ($000) $0 Avg Close Range
Q1 2023
Shares 13,151 Value ($000) $0 Avg Close Range
Q4 2022
Shares 1,059 Value ($000) $0 Avg Close Range
Q3 2022
Shares 1,351 Value ($000) $5 Avg Close Range
Q2 2022
Shares 7,318 Value ($000) $57 Avg Close Range
Q1 2022
Shares 25,792 Value ($000) $239 Avg Close Range
Q4 2021
Shares 4,090 Value ($000) $64 Avg Close Range
Q3 2021
Shares 775 Value ($000) $12 Avg Close Range
Q2 2021
Shares 675 Value ($000) $10 Avg Close Range
Q1 2021
Shares 318 Value ($000) $4 Avg Close Range
Q3 2020
Shares 2,712 Value ($000) $35 Avg Close Range
Q1 2020
Shares 2,288 Value ($000) $19 Avg Close Range
Q4 2019
Shares 8,489 Value ($000) $139 Avg Close Range
Q3 2019
Shares 3,309 Value ($000) $46 Avg Close Range
Q2 2019
Shares 5,603 Value ($000) $112 Avg Close Range
Q1 2019
Shares 585 Value ($000) $23 Avg Close Range
Q4 2018
Shares 2,819 Value ($000) $97 Avg Close Range
Q2 2018
Shares 4,543 Value ($000) $166 Avg Close Range
Q3 2017
Shares 324 Value ($000) $5 Avg Close Range
Q2 2016
Shares 1,436 Value ($000) $32 Avg Close Range
Q1 2016
Shares 646 Value ($000) $12 Avg Close Range
Q3 2015
Shares 1,385 Value ($000) $43 Avg Close Range
Q2 2015
Shares 903 Value ($000) $47 Avg Close Range