| Feb 15, 2019 SForm 4 → | Feb 19, 5:08 pm EST | Atara Biotherapeutics, Inc.ATRA | 775 | $39.59 | $30,682 | 271,943 | −0.28% | plan? |
| Feb 11, 2019 SForm 4 → | Feb 11, 7:10 pm EST | Atara Biotherapeutics, Inc.ATRA | 13,975 | $38.55 | $538,736 | 272,718 | −4.87% | plan? |
| Feb 6, 2019 AFForm 4 → | Feb 8, 4:28 pm EST | Atara Biotherapeutics, Inc.ATRA | 16,512 | $38.47 | $58,167 | 286,693 | — | plan? |
| Feb 6, 2019 SForm 4 → | Feb 8, 4:28 pm EST | Atara Biotherapeutics, Inc.ATRA | 12,375 | $38.62 | $477,922 | 273,205 | −4.33% | plan? |
| Nov 15, 2018 SForm 4 → | Nov 15, 4:53 pm EST | Atara Biotherapeutics, Inc.ATRA | 775 | $33.81 | $26,203 | 285,580 | −0.27% | plan? |
| Sep 26, 2018 SForm 4 → | Sep 27, 4:56 pm EDT | Atara Biotherapeutics, Inc.ATRA | 13,500 | $43.08 | $581,580 | 286,355 | −4.50% | plan? |
| Sep 24, 2018 SForm 4 → | Sep 25, 5:02 pm EDT | Atara Biotherapeutics, Inc.ATRA | 31,500 | $40.17 | $1,265,330 | 299,855 | −9.51% | plan? |
| Aug 15, 2018 SForm 4 → | Aug 16, 5:12 pm EDT | Atara Biotherapeutics, Inc.ATRA | 775 | $37.54 | $29,094 | 331,355 | −0.23% | plan? |
| May 15, 2018 SForm 4 → | May 16, 8:37 pm EDT | Atara Biotherapeutics, Inc.ATRA | 25,775 | $45.30 | $1,167,480 | 332,130 | −7.20% | plan? |
| May 15, 2018 MForm 4 → | May 16, 8:37 pm EDT | Atara Biotherapeutics, Inc.ATRA | 25,000 | $11.00 | $275,000 | 357,905 | — | plan? |
| Mar 26, 2018 SForm 4 → | Mar 27, 4:16 pm EDT | Atara Biotherapeutics, Inc.ATRA | 18,327 | $39.79 | $729,265 | 332,905 | −5.22% | plan? |
| Feb 15, 2018 MForm 4 → | Feb 20, 8:24 pm EST | Atara Biotherapeutics, Inc.ATRA | 553 | — | — | 351,232 | — | plan? |
| Feb 9, 2018 FForm 4 → | Feb 12, 8:55 pm EST | Atara Biotherapeutics, Inc.ATRA | 4,925 | $41.70 | $205,373 | 350,679 | — | plan? |
| Feb 6, 2018 AFForm 4 → | Feb 8, 5:46 pm EST | Atara Biotherapeutics, Inc.ATRA | 21,926 | $35.80 | $158,451 | 355,604 | — | plan? |
| Nov 15, 2017 SForm 4 → | Nov 17, 6:27 pm EST | Atara Biotherapeutics, Inc.ATRA | 1,604 | $13.36 | $21,429 | 342,530 | −0.47% | plan? |
| Nov 15, 2017 MForm 4 → | Nov 17, 6:27 pm EST | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 344,134 | — | plan? |
| Oct 16, 2017 SForm 4 → | Oct 17, 4:46 pm EDT | Atara Biotherapeutics, Inc.ATRA | 6,000 | $14.35 | $86,100 | 343,305 | −1.72% | plan? |
| Sep 15, 2017 SForm 4 → | Sep 18, 5:46 pm EDT | Atara Biotherapeutics, Inc.ATRA | 6,000 | $15.30 | $91,800 | 349,305 | −1.69% | plan? |
| Aug 15, 2017 SForm 4 → | Aug 17, 5:35 pm EDT | Atara Biotherapeutics, Inc.ATRA | 7,604 | $14.75 | $112,159 | 355,305 | −2.10% | plan? |
| Aug 15, 2017 MForm 4 → | Aug 17, 5:35 pm EDT | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 362,909 | — | plan? |
| Jul 17, 2017 SForm 4 → | Jul 18, 4:24 pm EDT | Atara Biotherapeutics, Inc.ATRA | 6,000 | $14.92 | $89,520 | 362,080 | −1.63% | plan? |
| Jun 15, 2017 SForm 4 → | Jun 16, 4:47 pm EDT | Atara Biotherapeutics, Inc.ATRA | 6,000 | $12.65 | $75,900 | 368,080 | −1.60% | plan? |
| May 15, 2017 SForm 4 → | May 17, 4:58 pm EDT | Atara Biotherapeutics, Inc.ATRA | 7,604 | $14.99 | $113,984 | 374,080 | −1.99% | plan? |
| May 15, 2017 MForm 4 → | May 17, 4:58 pm EDT | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 381,684 | — | plan? |
| Apr 17, 2017 SForm 4 → | Apr 19, 4:29 pm EDT | Atara Biotherapeutics, Inc.ATRA | 6,000 | $17.28 | $103,680 | 380,855 | −1.55% | plan? |
| Mar 15, 2017 SForm 4 → | Mar 17, 5:07 pm EDT | Atara Biotherapeutics, Inc.ATRA | 6,000 | $19.60 | $117,600 | 386,855 | −1.53% | plan? |
| Feb 15, 2017 SForm 4 → | Feb 16, 8:08 pm EST | Atara Biotherapeutics, Inc.ATRA | 7,604 | $15.49 | $117,786 | 392,855 | −1.90% | plan? |
| Feb 15, 2017 MForm 4 → | Feb 16, 8:08 pm EST | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 400,459 | — | plan? |
| Feb 9, 2017 SForm 4 → | Feb 10, 6:23 pm EST | Atara Biotherapeutics, Inc.ATRA | 13,975 | $15.46 | $216,054 | 399,630 | −3.38% | plan? |
| Feb 6, 2017 AForm 4 → | Feb 8, 5:37 pm EST | Atara Biotherapeutics, Inc.ATRA | 49,500 | — | — | 413,605 | — | plan? |
| Jan 17, 2017 SForm 4 → | Jan 18, 7:52 pm EST | Atara Biotherapeutics, Inc.ATRA | 6,000 | $14.27 | $85,620 | 364,105 | −1.62% | plan? |
| Dec 15, 2016 SForm 4 → | Dec 15, 7:28 pm EST | Atara Biotherapeutics, Inc.ATRA | 6,000 | $15.40 | $92,400 | 370,105 | −1.60% | plan? |
| Nov 21, 2016 SForm 4 → | Nov 22, 6:40 pm EST | Atara Biotherapeutics, Inc.ATRA | 7,068 | $17.85 | $126,164 | 376,105 | −1.84% | plan? |
| Nov 15, 2016 SForm 4 → | Nov 17, 4:53 pm EST | Atara Biotherapeutics, Inc.ATRA | 1,604 | $19.95 | $32,000 | 383,173 | −0.42% | plan? |
| Nov 15, 2016 MForm 4 → | Nov 17, 4:53 pm EST | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 384,777 | — | plan? |
| Sep 22, 2016 AForm 4 → | Sep 23, 7:26 pm EDT | Atara Biotherapeutics, Inc.ATRA | 90,000 | — | — | 383,948 | — | plan? |
| Aug 15, 2016 SForm 4 → | Aug 17, 7:47 pm EDT | Atara Biotherapeutics, Inc.ATRA | 1,346 | $22.32 | $30,041 | 293,948 | −0.46% | plan? |
| Aug 15, 2016 MForm 4 → | Aug 17, 7:47 pm EDT | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 295,294 | — | plan? |
| May 16, 2016 SForm 4 → | May 18, 7:05 pm EDT | Atara Biotherapeutics, Inc.ATRA | 1,605 | $15.57 | $24,990 | 294,465 | −0.54% | plan? |
| May 16, 2016 MForm 4 → | May 18, 7:05 pm EDT | Atara Biotherapeutics, Inc.ATRA | 830 | — | — | 296,070 | — | plan? |
| Feb 16, 2016 SForm 4 → | Feb 18, 8:13 pm EST | Atara Biotherapeutics, Inc.ATRA | 3,208 | $15.43 | $49,499 | 295,240 | −1.07% | plan? |
| Feb 16, 2016 MForm 4 → | Feb 18, 8:13 pm EST | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 298,448 | — | plan? |
| Feb 9, 2016 AForm 4 → | Feb 11, 9:53 pm EST | Atara Biotherapeutics, Inc.ATRA | 55,900 | — | — | 297,619 | — | plan? |
| Nov 16, 2015 MForm 4 → | Nov 18, 6:56 pm EST | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 241,719 | — | plan? |
| Aug 31, 2015 SForm 4 → | Sep 1, 9:40 pm EDT | Atara Biotherapeutics, Inc.ATRA | 5,000 | $41.99 | $209,961 | 240,890 | −2.03% | plan? |
| Aug 17, 2015 SForm 4 → | Aug 19, 8:26 pm EDT | Atara Biotherapeutics, Inc.ATRA | 1,604 | $45.91 | $73,632 | 245,890 | −0.65% | plan? |
| Aug 17, 2015 MForm 4 → | Aug 19, 8:26 pm EDT | Atara Biotherapeutics, Inc.ATRA | 829 | — | — | 247,494 | — | plan? |
| Jul 31, 2015 SForm 4 → | Aug 3, 5:18 pm EDT | Atara Biotherapeutics, Inc.ATRA | 2,500 | $55.43 | $138,575 | 246,665 | −1.00% | plan? |
| Jul 15, 2015 SForm 4 → | Jul 15, 9:03 pm EDT | Atara Biotherapeutics, Inc.ATRA | 2,500 | $62.94 | $157,353 | 249,165 | −0.99% | plan? |
| Jul 1, 2015 SForm 4 → | Jul 2, 6:18 pm EDT | Atara Biotherapeutics, Inc.ATRA | 2,500 | $51.68 | $129,196 | 251,665 | −0.98% | plan? |
| Jun 15, 2015 SForm 4 → | Jun 16, 8:08 pm EDT | Atara Biotherapeutics, Inc.ATRA | 7,500 | $46.42 | $348,116 | 254,165 | −2.87% | plan? |
| Jun 1, 2015 SForm 4 → | Jun 1, 5:39 pm EDT | Atara Biotherapeutics, Inc.ATRA | 2,500 | $41.47 | $103,665 | 261,665 | −0.95% | plan? |
| May 15, 2015 FMForm 4 → | May 19, 6:57 pm EDT | Atara Biotherapeutics, Inc.ATRA | 6,309 | $37.30 | $70,385 | 264,165 | — | plan? |
| Jan 16, 2015 AForm 4 → | Jan 21, 4:43 pm EST | Atara Biotherapeutics, Inc.ATRA | 12,400 | — | — | 261,630 | — | plan? |