Insider trading activities (stock purchases, sales, and option exercises)
reported by insiders of Atara Biotherapeutics, Inc. (ATRA)
since 2015 are shown in Table 1 and Table 2.
Table 1 shows the monthly insider trading data of Atara Biotherapeutics, Inc..
(See page 1 of this report.) Table 2 shows the detailed insider transactions.
This company's CIK number is 1604464.
Total stock buying since 2015: $1,974,975.
Total stock sales since 2015: $62,070,364.
Total stock option exercises since 2015: $4,725,654.
Table 3. Detailed insider trading at Atara Biotherapeutics, Inc. (ATRA) , Part 4
| Trade Date |
Insider Name |
Trade Type |
Shares |
Price ($) |
Value ($) |
| 2016-05-16 | Haqq Christopher (Chief Medical Officer) | Sale | 1,605 | 15.57 | 24,989 |
| 2016-05-16 | Haqq Christopher (Chief Medical Officer) | Option Ex | 830 | .00 | 0 |
| 2016-05-16 | Clark Mitchall G. (Chief R & QA Officer) | Sale | 4,153 | 15.15 | 62,917 |
| 2016-05-16 | Clark Mitchall G. (Chief R & QA Officer) | Option Ex | 7,212 | .00 | 0 |
| 2016-05-16 | Soffer Gad (Chief Operating Officer) | Option Ex | 13,761 | .00 | 0 |
| 2016-05-16 | Fust Matthew K (Director) | Option Ex | 1,602 | .00 | 0 |
| 2016-05-16 | Gallagher Carol Giltner (Director) | Option Ex | 2,366 | .00 | 0 |
| 2016-05-16 | Mcgrath John (Chief Financial Officer) | Sale | 5,395 | 15.77 | 85,079 |
| 2016-05-16 | Mcgrath John (Chief Financial Officer) | Option Ex | 10,503 | .00 | 0 |
| 2016-04-26 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 100 | 20.15 | 2,014 |
| 2016-04-25 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 20.12 | 24,144 |
| 2016-04-12 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 20.20 | 24,240 |
| 2016-04-11 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 12,010 | 20.42 | 245,244 |
| 2016-04-01 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 890 | 20.04 | 17,835 |
| 2016-03-31 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 300 | 20.01 | 6,003 |
| 2016-03-17 | Dobmeier Eric (Director) | Buy | 3,000 | 13.86 | 41,565 |
| 2016-02-17 | Soffer Gad (Chief Operating Officer) | Sale | 5,711 | 16.60 | 94,802 |
| 2016-02-17 | Gallagher Carol Giltner (Director) | Sale | 1,183 | 16.30 | 19,282 |
| 2016-02-16 | Ciechanover Isaac E. (Chief Executive Officer) | Option Ex | 5,908 | .00 | 0 |
| 2016-02-16 | Haqq Christopher (Chief Medical Officer) | Sale | 3,208 | 15.43 | 49,499 |
| 2016-02-16 | Haqq Christopher (Chief Medical Officer) | Option Ex | 829 | .00 | 0 |
| 2016-02-16 | Clark Mitchall G. (Chief R & QA Officer) | Sale | 4,153 | 15.35 | 63,748 |
| 2016-02-16 | Clark Mitchall G. (Chief R & QA Officer) | Option Ex | 7,211 | .00 | 0 |
| 2016-02-16 | Soffer Gad (Chief Operating Officer) | Option Ex | 13,761 | .00 | 0 |
| 2016-02-16 | Fust Matthew K (Director) | Option Ex | 1,603 | .00 | 0 |
| 2016-02-16 | Gallagher Carol Giltner (Director) | Option Ex | 2,365 | .00 | 0 |
| 2016-02-16 | Mcgrath John (Chief Financial Officer) | Sale | 6,000 | 15.49 | 92,940 |
| 2016-02-16 | Mcgrath John (Chief Financial Officer) | Option Ex | 10,501 | .00 | 0 |
| 2016-01-14 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 20.07 | 24,084 |
| 2016-01-13 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 20.32 | 24,384 |
| 2015-12-31 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 26.59 | 31,902 |
| 2015-12-30 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 25.21 | 30,252 |
| 2015-12-16 | Dobmeier Eric (Director) | Buy | 2,500 | 22.00 | 55,000 |
| 2015-12-15 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 21.48 | 25,779 |
| 2015-12-14 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 23.91 | 28,695 |
| 2015-12-04 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 37.46 | 74,920 |
| 2015-12-03 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 37.39 | 74,786 |
| 2015-11-30 | Mcgrath John (Chief Financial Officer) | Sale | 6,000 | 40.00 | 240,000 |
| 2015-11-24 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 35.77 | 71,546 |
| 2015-11-23 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,800 | 34.74 | 97,272 |
| 2015-11-17 | Soffer Gad (Chief Operating Officer) | Sale | 7,586 | 31.39 | 238,139 |
| 2015-11-17 | Gallagher Carol Giltner (Director) | Sale | 1,184 | 31.10 | 36,822 |
| 2015-11-16 | Ciechanover Isaac E. (Chief Executive Officer) | Option Ex | 5,908 | .00 | 0 |
| 2015-11-16 | Haqq Christopher (Chief Medical Officer) | Option Ex | 829 | .00 | 0 |
| 2015-11-16 | Clark Mitchall G. (Chief R & QA Officer) | Sale | 4,153 | 31.67 | 131,525 |
| 2015-11-16 | Clark Mitchall G. (Chief R & QA Officer) | Option Ex | 4,808 | .00 | 0 |
| 2015-11-16 | Soffer Gad (Chief Operating Officer) | Option Ex | 13,762 | .00 | 0 |
| 2015-11-16 | Fust Matthew K (Director) | Option Ex | 1,602 | .00 | 0 |
| 2015-11-16 | Gallagher Carol Giltner (Director) | Option Ex | 2,366 | .00 | 0 |
| 2015-11-16 | Mcgrath John (Chief Financial Officer) | Option Ex | 10,502 | .00 | 0 |
| 2015-10-22 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 1,200 | 24.86 | 29,832 |
| 2015-10-21 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 27.12 | 54,234 |
| 2015-10-07 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 34.99 | 69,980 |
| 2015-10-06 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 31.47 | 62,940 |
| 2015-09-24 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 42.62 | 110,799 |
| 2015-09-23 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 43.29 | 112,554 |
| 2015-09-11 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 46.66 | 121,323 |
| 2015-09-10 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 45.79 | 119,061 |
| 2015-08-31 | Haqq Christopher (Chief Medical Officer) | Sale | 5,000 | 41.85 | 209,274 |
| 2015-08-28 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 39.63 | 103,051 |
| 2015-08-27 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 39.34 | 102,291 |
| 2015-08-24 | Gallagher Carol Giltner (Director) | Sale | 5,874 | 40.19 | 236,076 |
| 2015-08-21 | Gallagher Carol Giltner (Director) | Sale | 5,874 | 42.05 | 247,031 |
| 2015-08-20 | Gallagher Carol Giltner (Director) | Sale | 5,874 | 44.40 | 260,805 |
| 2015-08-19 | Gallagher Carol Giltner (Director) | Sale | 5,875 | 48.38 | 284,232 |
| 2015-08-18 | Soffer Gad (Chief Operating Officer) | Sale | 7,711 | 49.52 | 381,848 |
| 2015-08-18 | Gallagher Carol Giltner (Director) | Sale | 5,764 | 49.38 | 284,626 |
| 2015-08-18 | Mcgrath John (Chief Financial Officer) | Sale | 6,000 | 49.38 | 296,280 |
| 2015-08-17 | Ciechanover Isaac E. (Chief Executive Officer) | Option Ex | 5,907 | .00 | 0 |
| 2015-08-17 | Haqq Christopher (Chief Medical Officer) | Sale | 1,604 | 46.16 | 74,048 |
| 2015-08-17 | Haqq Christopher (Chief Medical Officer) | Option Ex | 829 | .00 | 0 |
| 2015-08-17 | Clark Mitchall G. (Chief R & QA Officer) | Sale | 7,829 | 46.19 | 361,621 |
| 2015-08-17 | Clark Mitchall G. (Chief R & QA Officer) | Option Ex | 11,375 | 12.05 | 137,068 |
| 2015-08-17 | Soffer Gad (Chief Operating Officer) | Sale | 8,778 | 50.00 | 438,900 |
| 2015-08-17 | Soffer Gad (Chief Operating Officer) | Option Ex | 16,538 | 3.67 | 60,644 |
| 2015-08-17 | Fust Matthew K (Director) | Option Ex | 1,603 | .00 | 0 |
| 2015-08-17 | Gallagher Carol Giltner (Director) | Option Ex | 58,521 | .00 | 0 |
| 2015-08-17 | Mcgrath John (Chief Financial Officer) | Option Ex | 10,502 | .00 | 0 |
| 2015-07-31 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 56.37 | 146,562 |
| 2015-07-31 | Haqq Christopher (Chief Medical Officer) | Sale | 2,500 | 55.43 | 138,575 |
| 2015-07-30 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 56.59 | 147,134 |
| 2015-07-17 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 60.30 | 156,793 |
| 2015-07-16 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 61.83 | 160,765 |
| 2015-07-15 | Haqq Christopher (Chief Medical Officer) | Sale | 2,500 | 63.06 | 157,650 |
| 2015-07-01 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 48.54 | 126,204 |
| 2015-07-01 | Haqq Christopher (Chief Medical Officer) | Sale | 2,500 | 51.65 | 129,125 |
| 2015-06-30 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 52.76 | 137,183 |
| 2015-06-18 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 54.84 | 142,591 |
| 2015-06-17 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 55.23 | 143,598 |
| 2015-06-15 | Haqq Christopher (Chief Medical Officer) | Sale | 7,500 | 46.08 | 345,600 |
| 2015-06-15 | Mcgrath John (Chief Financial Officer) | Sale | 10,000 | 50.00 | 500,000 |
| 2015-06-05 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 44.54 | 115,811 |
| 2015-06-04 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 3,800 | 42.38 | 161,032 |
| 2015-06-01 | Haqq Christopher (Chief Medical Officer) | Sale | 2,500 | 41.77 | 104,425 |
| 2015-05-29 | Mcgrath John (Chief Financial Officer) | Sale | 10,000 | 40.00 | 400,000 |
| 2015-05-22 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 37.78 | 75,560 |
| 2015-05-21 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,000 | 37.77 | 75,530 |
| 2015-05-15 | Ciechanover Isaac E. (Chief Executive Officer) | Option Ex | 31,508 | .00 | 0 |
| 2015-05-15 | Haqq Christopher (Chief Medical Officer) | Option Ex | 4,422 | .00 | 0 |
| 2015-05-15 | Clark Mitchall G. (Chief R & QA Officer) | Option Ex | 31,250 | .00 | 0 |
| 2015-05-15 | Soffer Gad (Chief Operating Officer) | Option Ex | 102,239 | .00 | 0 |
| 2015-05-15 | Fust Matthew K (Director) | Option Ex | 7,478 | .00 | 0 |
| 2015-05-15 | Mcgrath John (Chief Financial Officer) | Option Ex | 65,357 | .00 | 0 |
| 2015-04-23 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 62.70 | 163,020 |
| 2015-04-22 | Ciechanover Isaac E. (Chief Executive Officer) | Sale | 2,600 | 60.01 | 156,026 |
| 2015-03-10 | Marcus Joel S (Director) | Buy | 1,500 | 29.99 | 44,985 |
| 2015-03-09 | Marcus Joel S (Director) | Buy | 2,500 | 29.32 | 73,300 |
| 2015-02-18 | Gallagher Carol Giltner (Director) | Buy | 11,000 | 18.00 | 198,000 |
Insider trading activities including stock purchases, stock sales, and option exercises
of ATRA listed in the above tables cannot be completely guaranteed as to their accuracy.
For more insider trading information of Atara Biotherapeutics, Inc. (symbol ATRA,
CIK number 1604464) see
the Securities and Exchange Commission (SEC) website.