Insider Stock Trading History of Ciechanover Isaac E.


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Ciechanover Isaac E. since year 2005. The trader's CIK number is 1612096. At the time of this reporting, Ciechanover Isaac E. is the Chief Executive Officer of Atara Biotherapeutics, Inc. . (stock ticker symbol ATRA). See this page for all insider trading activities at Atara Biotherapeutics, Inc. .


Stock purchases, sales, and option exercises reported by insider Ciechanover Isaac E. since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2018-09-18 ATRA Atara Biotherapeutics, Inc. Sale 3,900 39.62 154,518
2018-09-19 ATRA Atara Biotherapeutics, Inc. Sale 3,900 39.99 155,961
2018-09-06 ATRA Atara Biotherapeutics, Inc. Sale 3,900 38.94 151,846
2018-09-07 ATRA Atara Biotherapeutics, Inc. Sale 3,900 39.98 155,941
2018-08-21 ATRA Atara Biotherapeutics, Inc. Sale 3,900 36.69 143,091
2018-08-20 ATRA Atara Biotherapeutics, Inc. Sale 3,900 36.04 140,556
2018-08-06 ATRA Atara Biotherapeutics, Inc. Sale 3,900 37.48 146,172
2018-08-07 ATRA Atara Biotherapeutics, Inc. Sale 3,900 37.55 146,445
2018-07-26 ATRA Atara Biotherapeutics, Inc. Sale 3,900 39.23 153,016
2018-07-27 ATRA Atara Biotherapeutics, Inc. Sale 3,900 37.04 144,456
2018-07-09 ATRA Atara Biotherapeutics, Inc. Sale 30,000 40.26 1,207,650
2018-07-10 ATRA Atara Biotherapeutics, Inc. Sale 28,400 40.23 1,142,674
2018-06-26 ATRA Atara Biotherapeutics, Inc. Sale 4,400 40.40 177,760
2018-06-27 ATRA Atara Biotherapeutics, Inc. Sale 2,000 38.48 76,970
2018-06-05 ATRA Atara Biotherapeutics, Inc. Sale 4,400 49.89 219,516
2018-06-06 ATRA Atara Biotherapeutics, Inc. Sale 4,400 47.60 209,453
2018-05-21 ATRA Atara Biotherapeutics, Inc. Sale 4,400 52.71 231,937
2018-05-22 ATRA Atara Biotherapeutics, Inc. Sale 4,400 50.88 223,872
2018-05-10 ATRA Atara Biotherapeutics, Inc. Sale 4,400 40.53 178,332
2018-05-09 ATRA Atara Biotherapeutics, Inc. Sale 4,400 38.92 171,270
2018-04-11 ATRA Atara Biotherapeutics, Inc. Sale 4,400 41.07 180,708
2018-04-12 ATRA Atara Biotherapeutics, Inc. Sale 4,400 43.16 189,903
2018-03-26 ATRA Atara Biotherapeutics, Inc. Sale 4,400 40.42 177,848
2018-03-27 ATRA Atara Biotherapeutics, Inc. Sale 4,400 37.57 165,308
2018-03-15 ATRA Atara Biotherapeutics, Inc. Sale 4,400 42.41 186,603
2018-03-16 ATRA Atara Biotherapeutics, Inc. Sale 4,400 42.17 185,548
2018-03-12 ATRA Atara Biotherapeutics, Inc. Sale 1,000 46.41 46,410
2018-02-20 ATRA Atara Biotherapeutics, Inc. Sale 8,700 45.28 393,936
2018-02-21 ATRA Atara Biotherapeutics, Inc. Sale 4,500 44.08 198,337
2018-02-22 ATRA Atara Biotherapeutics, Inc. Sale 4,600 43.92 202,045
2018-02-15 ATRA Atara Biotherapeutics, Inc. Option Ex 3,938 .00 0
2018-02-15 ATRA Atara Biotherapeutics, Inc. Sale 10,000 47.02 470,250
2018-02-16 ATRA Atara Biotherapeutics, Inc. Sale 10,000 47.08 470,820
2018-02-14 ATRA Atara Biotherapeutics, Inc. Sale 10,000 47.41 474,150
2018-02-13 ATRA Atara Biotherapeutics, Inc. Sale 10,000 45.10 451,000
2018-02-08 ATRA Atara Biotherapeutics, Inc. Sale 4,400 37.15 163,460
2018-02-09 ATRA Atara Biotherapeutics, Inc. Sale 4,400 39.04 171,767
2018-01-25 ATRA Atara Biotherapeutics, Inc. Sale 10,000 34.04 340,430
2018-01-26 ATRA Atara Biotherapeutics, Inc. Sale 9,300 36.33 337,841
2018-01-24 ATRA Atara Biotherapeutics, Inc. Sale 14,400 34.20 492,436
2018-01-22 ATRA Atara Biotherapeutics, Inc. Sale 10,000 32.55 325,550
2018-01-23 ATRA Atara Biotherapeutics, Inc. Sale 24,100 35.22 848,729
2018-01-16 ATRA Atara Biotherapeutics, Inc. Sale 600 30.38 18,228
2018-01-12 ATRA Atara Biotherapeutics, Inc. Sale 100 30.05 3,005
2018-01-11 ATRA Atara Biotherapeutics, Inc. Sale 20,000 21.75 435,000
2018-01-10 ATRA Atara Biotherapeutics, Inc. Sale 8,600 20.01 172,086
2017-12-28 ATRA Atara Biotherapeutics, Inc. Sale 2,200 15.15 33,330
2017-12-29 ATRA Atara Biotherapeutics, Inc. Sale 20,000 19.19 383,740
2017-12-12 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.56 32,032
2017-12-13 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.73 32,406
2017-11-30 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.40 31,680
2017-11-29 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.09 30,998
2017-11-15 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2017-11-13 ATRA Atara Biotherapeutics, Inc. Sale 2,200 13.53 29,766
2017-11-14 ATRA Atara Biotherapeutics, Inc. Sale 2,200 13.41 29,502
2017-10-27 ATRA Atara Biotherapeutics, Inc. Sale 2,200 13.60 29,920
2017-10-26 ATRA Atara Biotherapeutics, Inc. Sale 2,200 13.57 29,854
2017-10-11 ATRA Atara Biotherapeutics, Inc. Sale 2,200 15.25 33,550
2017-10-12 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.78 32,516
2017-09-19 ATRA Atara Biotherapeutics, Inc. Sale 2,200 15.51 34,122
2017-09-20 ATRA Atara Biotherapeutics, Inc. Sale 2,200 15.56 34,232
2017-09-07 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.98 32,956
2017-09-06 ATRA Atara Biotherapeutics, Inc. Sale 2,200 15.05 33,110
2017-08-22 ATRA Atara Biotherapeutics, Inc. Sale 2,200 13.56 29,832
2017-08-23 ATRA Atara Biotherapeutics, Inc. Sale 2,200 13.51 29,722
2017-08-15 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2017-08-11 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.58 32,076
2017-08-10 ATRA Atara Biotherapeutics, Inc. Sale 2,200 14.75 32,450
2017-07-24 ATRA Atara Biotherapeutics, Inc. Sale 2,800 17.11 47,894
2017-07-25 ATRA Atara Biotherapeutics, Inc. Sale 2,700 16.38 44,226
2017-05-30 ATRA Atara Biotherapeutics, Inc. Sale 3,450 13.44 46,368
2017-05-31 ATRA Atara Biotherapeutics, Inc. Sale 3,450 13.26 45,747
2017-05-18 ATRA Atara Biotherapeutics, Inc. Sale 2,400 14.94 35,856
2017-05-17 ATRA Atara Biotherapeutics, Inc. Sale 2,400 14.88 35,712
2017-05-15 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2017-04-26 ATRA Atara Biotherapeutics, Inc. Sale 3,600 17.78 64,008
2017-04-25 ATRA Atara Biotherapeutics, Inc. Sale 3,600 17.39 62,586
2017-04-10 ATRA Atara Biotherapeutics, Inc. Sale 3,000 17.08 51,239
2017-04-11 ATRA Atara Biotherapeutics, Inc. Sale 4,200 16.99 71,358
2017-03-27 ATRA Atara Biotherapeutics, Inc. Sale 12,400 20.34 252,216
2017-03-28 ATRA Atara Biotherapeutics, Inc. Sale 3,600 19.43 69,930
2017-03-17 ATRA Atara Biotherapeutics, Inc. Sale 20,000 19.25 385,100
2017-03-16 ATRA Atara Biotherapeutics, Inc. Sale 10,800 18.54 200,232
2017-02-15 ATRA Atara Biotherapeutics, Inc. Option Ex 5,907 .00 0
2017-02-15 ATRA Atara Biotherapeutics, Inc. Sale 2,400 15.54 37,296
2017-02-16 ATRA Atara Biotherapeutics, Inc. Sale 2,400 15.57 37,368
2017-02-02 ATRA Atara Biotherapeutics, Inc. Sale 2,400 13.45 32,280
2017-02-03 ATRA Atara Biotherapeutics, Inc. Sale 2,400 13.87 33,288
2017-01-17 ATRA Atara Biotherapeutics, Inc. Sale 3,600 14.08 50,688
2017-01-18 ATRA Atara Biotherapeutics, Inc. Sale 2,400 14.47 34,728
2017-01-06 ATRA Atara Biotherapeutics, Inc. Sale 6,000 17.10 102,600
2017-01-05 ATRA Atara Biotherapeutics, Inc. Sale 2,400 16.36 39,264
2016-12-22 ATRA Atara Biotherapeutics, Inc. Sale 2,400 15.49 37,188
2016-12-23 ATRA Atara Biotherapeutics, Inc. Sale 2,400 15.25 36,600
2016-12-06 ATRA Atara Biotherapeutics, Inc. Sale 3,600 18.55 66,780
2016-12-07 ATRA Atara Biotherapeutics, Inc. Sale 3,600 17.30 62,280
2016-11-23 ATRA Atara Biotherapeutics, Inc. Sale 3,600 18.81 67,716
2016-11-22 ATRA Atara Biotherapeutics, Inc. Sale 8,400 18.21 152,964
2016-11-15 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2016-10-26 ATRA Atara Biotherapeutics, Inc. Sale 2,400 13.91 33,384
2016-10-27 ATRA Atara Biotherapeutics, Inc. Sale 2,400 13.70 32,880
2016-10-13 ATRA Atara Biotherapeutics, Inc. Sale 2,400 15.91 38,184
2016-10-14 ATRA Atara Biotherapeutics, Inc. Sale 2,400 16.01 38,424
2016-09-28 ATRA Atara Biotherapeutics, Inc. Sale 4,800 21.61 103,728
2016-09-27 ATRA Atara Biotherapeutics, Inc. Sale 7,200 20.50 147,600
2016-09-15 ATRA Atara Biotherapeutics, Inc. Sale 3,600 19.39 69,804
2016-09-16 ATRA Atara Biotherapeutics, Inc. Sale 3,600 19.32 69,552
2016-08-23 ATRA Atara Biotherapeutics, Inc. Sale 4,800 22.08 105,983
2016-08-22 ATRA Atara Biotherapeutics, Inc. Sale 4,800 22.58 108,383
2016-08-15 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2016-07-20 ATRA Atara Biotherapeutics, Inc. Sale 4,800 21.99 105,551
2016-07-21 ATRA Atara Biotherapeutics, Inc. Sale 4,800 22.22 106,656
2016-07-07 ATRA Atara Biotherapeutics, Inc. Sale 4,800 22.80 109,440
2016-07-08 ATRA Atara Biotherapeutics, Inc. Sale 4,800 22.96 110,208
2016-06-23 ATRA Atara Biotherapeutics, Inc. Sale 4,800 21.19 101,712
2016-06-24 ATRA Atara Biotherapeutics, Inc. Sale 4,800 21.32 102,336
2016-06-08 ATRA Atara Biotherapeutics, Inc. Sale 4,800 20.79 99,792
2016-06-07 ATRA Atara Biotherapeutics, Inc. Sale 7,200 20.57 148,140
2016-05-25 ATRA Atara Biotherapeutics, Inc. Sale 3,600 18.03 64,908
2016-05-26 ATRA Atara Biotherapeutics, Inc. Sale 3,600 17.35 62,460
2016-05-16 ATRA Atara Biotherapeutics, Inc. Option Ex 5,907 .00 0
2016-04-26 ATRA Atara Biotherapeutics, Inc. Sale 100 20.15 2,014
2016-04-25 ATRA Atara Biotherapeutics, Inc. Sale 1,200 20.12 24,144
2016-04-12 ATRA Atara Biotherapeutics, Inc. Sale 1,200 20.20 24,240
2016-04-11 ATRA Atara Biotherapeutics, Inc. Sale 12,010 20.42 245,244
2016-04-01 ATRA Atara Biotherapeutics, Inc. Sale 890 20.04 17,835
2016-03-31 ATRA Atara Biotherapeutics, Inc. Sale 300 20.01 6,003
2016-02-16 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2016-01-14 ATRA Atara Biotherapeutics, Inc. Sale 1,200 20.07 24,084
2016-01-13 ATRA Atara Biotherapeutics, Inc. Sale 1,200 20.32 24,384
2015-12-30 ATRA Atara Biotherapeutics, Inc. Sale 1,200 25.21 30,252
2015-12-31 ATRA Atara Biotherapeutics, Inc. Sale 1,200 26.59 31,902
2015-12-14 ATRA Atara Biotherapeutics, Inc. Sale 1,200 23.91 28,695
2015-12-15 ATRA Atara Biotherapeutics, Inc. Sale 1,200 21.48 25,779
2015-12-04 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.46 74,920
2015-12-03 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.39 74,786
2015-11-24 ATRA Atara Biotherapeutics, Inc. Sale 2,000 35.77 71,546
2015-11-23 ATRA Atara Biotherapeutics, Inc. Sale 2,800 34.74 97,272
2015-11-16 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2015-10-22 ATRA Atara Biotherapeutics, Inc. Sale 1,200 24.86 29,832
2015-10-21 ATRA Atara Biotherapeutics, Inc. Sale 2,000 27.12 54,234
2015-10-06 ATRA Atara Biotherapeutics, Inc. Sale 2,000 31.47 62,940
2015-10-07 ATRA Atara Biotherapeutics, Inc. Sale 2,000 34.99 69,980
2015-09-23 ATRA Atara Biotherapeutics, Inc. Sale 2,600 43.29 112,554
2015-09-24 ATRA Atara Biotherapeutics, Inc. Sale 2,600 42.62 110,799
2015-09-11 ATRA Atara Biotherapeutics, Inc. Sale 2,600 46.66 121,323
2015-09-10 ATRA Atara Biotherapeutics, Inc. Sale 2,600 45.79 119,061
2015-08-27 ATRA Atara Biotherapeutics, Inc. Sale 2,600 39.34 102,291
2015-08-28 ATRA Atara Biotherapeutics, Inc. Sale 2,600 39.63 103,051
2015-08-17 ATRA Atara Biotherapeutics, Inc. Option Ex 5,907 .00 0
2015-07-31 ATRA Atara Biotherapeutics, Inc. Sale 2,600 56.37 146,562
2015-07-30 ATRA Atara Biotherapeutics, Inc. Sale 2,600 56.59 147,134
2015-07-16 ATRA Atara Biotherapeutics, Inc. Sale 2,600 61.83 160,765
2015-07-17 ATRA Atara Biotherapeutics, Inc. Sale 2,600 60.30 156,793
2015-06-30 ATRA Atara Biotherapeutics, Inc. Sale 2,600 52.76 137,183
2015-07-01 ATRA Atara Biotherapeutics, Inc. Sale 2,600 48.54 126,204
2015-06-17 ATRA Atara Biotherapeutics, Inc. Sale 2,600 55.23 143,598
2015-06-18 ATRA Atara Biotherapeutics, Inc. Sale 2,600 54.84 142,591
2015-06-04 ATRA Atara Biotherapeutics, Inc. Sale 3,800 42.38 161,032
2015-06-05 ATRA Atara Biotherapeutics, Inc. Sale 2,600 44.54 115,811
2015-05-22 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.78 75,560
2015-05-21 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.77 75,530
2015-05-15 ATRA Atara Biotherapeutics, Inc. Option Ex 31,508 .00 0
2015-04-22 ATRA Atara Biotherapeutics, Inc. Sale 2,600 60.01 156,026
2015-04-23 ATRA Atara Biotherapeutics, Inc. Sale 2,600 62.70 163,020

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Ciechanover Isaac E. (Chief Executive Officer of Atara Biotherapeutics, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.