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 ($)   Value ($)
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
2017-03-16 ATRA Atara Biotherapeutics, Inc. Sale 10,800 18.54 200,232
2017-03-17 ATRA Atara Biotherapeutics, Inc. Sale 20,000 19.25 385,100
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
2017-02-03 ATRA Atara Biotherapeutics, Inc. Sale 2,400 13.87 33,288
2017-02-02 ATRA Atara Biotherapeutics, Inc. Sale 2,400 13.45 32,280
2017-01-18 ATRA Atara Biotherapeutics, Inc. Sale 2,400 14.47 34,728
2017-01-17 ATRA Atara Biotherapeutics, Inc. Sale 3,600 14.08 50,688
2017-01-05 ATRA Atara Biotherapeutics, Inc. Sale 2,400 16.36 39,264
2017-01-06 ATRA Atara Biotherapeutics, Inc. Sale 6,000 17.10 102,600
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
2016-11-22 ATRA Atara Biotherapeutics, Inc. Sale 8,400 18.21 152,964
2016-11-23 ATRA Atara Biotherapeutics, Inc. Sale 3,600 18.81 67,716
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
2016-10-14 ATRA Atara Biotherapeutics, Inc. Sale 2,400 16.01 38,424
2016-10-13 ATRA Atara Biotherapeutics, Inc. Sale 2,400 15.91 38,184
2016-09-27 ATRA Atara Biotherapeutics, Inc. Sale 7,200 20.50 147,600
2016-09-28 ATRA Atara Biotherapeutics, Inc. Sale 4,800 21.61 103,728
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
2016-08-22 ATRA Atara Biotherapeutics, Inc. Sale 4,800 22.58 108,383
2016-08-23 ATRA Atara Biotherapeutics, Inc. Sale 4,800 22.08 105,983
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
2016-06-24 ATRA Atara Biotherapeutics, Inc. Sale 4,800 21.32 102,336
2016-06-23 ATRA Atara Biotherapeutics, Inc. Sale 4,800 21.19 101,712
2016-06-07 ATRA Atara Biotherapeutics, Inc. Sale 7,200 20.57 148,140
2016-06-08 ATRA Atara Biotherapeutics, Inc. Sale 4,800 20.79 99,792
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
2016-04-25 ATRA Atara Biotherapeutics, Inc. Sale 1,200 20.12 24,144
2016-04-26 ATRA Atara Biotherapeutics, Inc. Sale 100 20.15 2,014
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
2016-03-31 ATRA Atara Biotherapeutics, Inc. Sale 300 20.01 6,003
2016-04-01 ATRA Atara Biotherapeutics, Inc. Sale 890 20.04 17,835
2016-02-16 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2016-01-13 ATRA Atara Biotherapeutics, Inc. Sale 1,200 20.32 24,384
2016-01-14 ATRA Atara Biotherapeutics, Inc. Sale 1,200 20.07 24,084
2015-12-31 ATRA Atara Biotherapeutics, Inc. Sale 1,200 26.59 31,902
2015-12-30 ATRA Atara Biotherapeutics, Inc. Sale 1,200 25.21 30,252
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
2015-12-03 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.39 74,786
2015-12-04 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.46 74,920
2015-11-23 ATRA Atara Biotherapeutics, Inc. Sale 2,800 34.74 97,272
2015-11-24 ATRA Atara Biotherapeutics, Inc. Sale 2,000 35.77 71,546
2015-11-16 ATRA Atara Biotherapeutics, Inc. Option Ex 5,908 .00 0
2015-10-21 ATRA Atara Biotherapeutics, Inc. Sale 2,000 27.12 54,234
2015-10-22 ATRA Atara Biotherapeutics, Inc. Sale 1,200 24.86 29,832
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
2015-09-24 ATRA Atara Biotherapeutics, Inc. Sale 2,600 42.62 110,799
2015-09-23 ATRA Atara Biotherapeutics, Inc. Sale 2,600 43.29 112,554
2015-09-10 ATRA Atara Biotherapeutics, Inc. Sale 2,600 45.79 119,061
2015-09-11 ATRA Atara Biotherapeutics, Inc. Sale 2,600 46.66 121,323
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
2015-07-01 ATRA Atara Biotherapeutics, Inc. Sale 2,600 48.54 126,204
2015-06-30 ATRA Atara Biotherapeutics, Inc. Sale 2,600 52.76 137,183
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
2015-05-21 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.77 75,530
2015-05-22 ATRA Atara Biotherapeutics, Inc. Sale 2,000 37.78 75,560
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.