| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ATRA | Atara Biotherapeutics, Inc. | Porter Derrell | SVP, Head of Global Commercial | Feb 15, 2019 | Sale | $29.63 | 9,909 | 293,560 | 27,597 | Feb 19, 2019, 05:05 PM | |
| ATRA | Atara Biotherapeutics, Inc. | Porter Derrell | SVP, Head of Global Commercial | Feb 06, 2019 | Option Exercise | $38.47 | 1,216 | 46,780 | 11,284 | Feb 08, 2019, 04:23 PM | |
| ATRA | Atara Biotherapeutics, Inc. | Porter Derrell | SVP, Head of Global Commercial | May 15, 2018 | Sale | $29.66 | 32,668 | 968,933 | 28,834 | May 16, 2018, 08:41 PM | |
| ATRA | Atara Biotherapeutics, Inc. | Porter Derrell | SVP, Head of Global Commercial | May 08, 2018 | Sale | $40.15 | 1,544 | 61,992 | 12,500 | May 08, 2018, 08:18 PM |
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