Quarterly Put Option Transactions in Atara Biotherapeutics, Inc. (ATRA)
This table provides information about the institutional ownership of Atara Biotherapeutics, Inc. (ATRA). The information is specifically focused on institutions that hold put options of Atara Biotherapeutics, Inc..
Puts Purchased
Puts Sold
| Quarter | Buy | Sell | Net Activity | |||||
|---|---|---|---|---|---|---|---|---|
| New Holding | Increment | Total Shares Bought | Closed Position | Reduction | Total Shares Sold | |||
| Q1 2021 | — | 0 | 25,600 | 25,600 | -25,600 | |||
| Q2 2021 | — | — | 0 | |||||
| Q3 2021 | — | — | 0 | |||||
| Q4 2021 | — | — | 0 | |||||
| Q1 2022 | 1,900 | 0 | 1,900 | — | 1,900 | |||
| Q2 2022 | — | 1,800 | 0 | 1,800 | -1,800 | |||
| Q3 2022 | — | — | 0 | |||||
| Q4 2022 | 0 | 6,800 | 6,800 | — | 6,800 | |||
| Q1 2023 | 0 | 2,000 | 2,000 | 1,100 | 0 | 1,100 | 900 | |
| Q2 2023 | 8,900 | 100 | 9,000 | — | 9,000 | |||
| Q3 2023 | 33,500 | 0 | 33,500 | — | 33,500 | |||
| Q4 2023 | — | 46,900 | 0 | 46,900 | -46,900 | |||
| Q1 2024 | 51,100 | 0 | 51,100 | — | 51,100 | |||