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683 Capital Management, LLC
> ATRA
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Atara Biotherapeutics, Inc. | ATRA | 1,000,000 | 1,000,000 | 1,610,000,000 | 1,610,000,000 | $1,610.00 |
| 12/31/2022 | Atara Biotherapeutics, Inc. | ATRA | 0 | -1,300,000 | 0 | -4,914,000 | |
| 09/30/2022 | Atara Biotherapeutics, Inc. | ATRA | 1,300,000 | -745,000 | 4,914,000 | -11,016,000 | $3.78 |
| 06/30/2022 | Atara Biotherapeutics, Inc. | ATRA | 2,045,000 | 215,000 | 15,930,000 | -1,071,000 | $7.79 |
| 03/31/2022 | Atara Biotherapeutics, Inc. | ATRA | 1,830,000 | 48,766 | 17,001,000 | -11,072,000 | $9.29 |
| 12/31/2021 | Atara Biotherapeutics, Inc. | ATRA | 1,781,234 | 0 | 28,073,000 | -3,812,000 | $15.76 |
| 09/30/2021 | Atara Biotherapeutics, Inc. | ATRA | 1,781,234 | 1,103,551 | 31,885,000 | 21,347,000 | $17.90 |
| 06/30/2021 | Atara Biotherapeutics, Inc. | ATRA | 677,683 | 456,835 | 10,538,000 | 6,203,000 | $15.55 |
| 12/31/2020 | Atara Biotherapeutics, Inc. | ATRA | 220,848 | 0 | 4,335,000 | 1,473,000 | $19.63 |
| 09/30/2020 | Atara Biotherapeutics, Inc. | ATRA | 220,848 | 0 | 2,862,000 | -356,000 | $12.96 |
| 06/30/2020 | Atara Biotherapeutics, Inc. | ATRA | 220,848 | 220,848 | 3,218,000 | 3,218,000 | $14.57 |
| 03/31/2020 | Atara Biotherapeutics, Inc. | ATRA | 0 | -25,000 | 0 | -412,000 | |
| 12/31/2019 | Atara Biotherapeutics, Inc. | ATRA | 25,000 | 25,000 | 412,000 | 412,000 | $16.48 |
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