| 2024-05-16 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 81,506 0.0671% | $0.62 | $50,289 | -6.99% | |
| 2024-03-04 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 24,844 0.0185% | $0.72 | $17,888 | -11% | |
| 2023-11-16 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 20,409 0.0161% | $0.39 | $7,939 | +37.43% | |
| 2023-08-16 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 30,766 0.0307% | $1.65 | $50,835 | -58.58% | |
| 2023-06-27 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 14,291 0.0133% | $1.66 | $23,723 | -57.89% | |
| 2023-05-16 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 29,766 0.028% | $2.04 | $60,633 | -55.97% | |
| 2023-03-02 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 15,679 0.0156% | $3.63 | $56,868 | -56.42% | |
| 2022-11-16 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 15,591 0.0148% | $4.49 | $70,004 | -51.86% | |
| 2022-08-16 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 14,806 0.0147% | $5.04 | $74,548 | -30.97% | |
| 2022-06-27 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 14,220 0.0143% | $7.20 | $102,384 | -46.51% | |
| 2022-05-17 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 13,913 0.013% | $5.32 | $73,962 | -27.55% | |
| 2022-03-01 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 8,828 0.0085% | $9.86 | $87,009 | -53.97% | |
| 2021-11-16 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 8,402 0.0085% | $17.12 | $143,816 | -60.79% | |
| 2021-08-17 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 8,223 0.0087% | $12.53 | $103,051 | +4.18% | |
| 2021-06-25 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 14,194 0.0154% | $16.32 | $231,660 | -12.91% | |
| 2021-05-18 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 8,313 0.009% | $14.55 | $120,954 | +0.55% | |
| 2021-03-02 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 4,887 0.0053% | $16.74 | $81,808 | -11.51% | |
| 2020-11-17 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 4,716 0.0062% | $19.77 | $93,254 | -23.11% | |
| 2020-08-18 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 4,807 0.006% | $12.09 | $58,117 | +22.02% | |
| 2020-06-25 | Sale | Atara Biotherapeutics, Inc. ATRA | President and CEO | 12,135 0.0165% | $12.92 | $156,784 | +3.96% |