Isaac E. Ciechanover serves as Executive at Atara Biotherapeutics, Inc., where they oversee executive responsibilities. Since joining the company, Isaac E. Ciechanover has executed 350 insider transactions totaling $25.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on May 15, 2017 involved exercising options for 5,908 shares valued at $0.
Isaac E. Ciechanover currently holds 290,687 shares of Atara Biotherapeutics, Inc. (ATRA), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Isaac E. Ciechanover has been a net seller of ATRA stock. They have purchased $0 and sold $25.6M worth of shares.
Isaac E. Ciechanover's most recent insider trade was on May 15, 2017, when they sold 5,908 shares at $0.00 per share.
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| $17.78 |
| Discretionary |
| Apr 25, 2017 | ATRA | $26.6K | Sale | 1,500 | $17.70 | Discretionary |
| Apr 25, 2017 | ATRA | $35.8K | Sale | 2,100 | $17.07 | Discretionary |
| Apr 11, 2017 | ATRA | $71.4K | Sale | 4,200 | $16.99 | Discretionary |
| Apr 10, 2017 | ATRA | $51.2K | Sale | 3,000 | $17.08 | Discretionary |
| Mar 28, 2017 | ATRA | $60.4K | Sale | 3,182 | $18.99 | Discretionary |
| Mar 28, 2017 | ATRA | $8.3K | Sale | 418 | $19.86 | Discretionary |
| Mar 27, 2017 | ATRA | $252.2K | Sale | 12,400 | $20.34 | Discretionary |
| Mar 17, 2017 | ATRA | $44.4K | Sale | 2,400 | $18.50 | Discretionary |
| Mar 17, 2017 | ATRA | $352.2K | Sale | 17,600 | $20.01 | Discretionary |
| Mar 16, 2017 | ATRA | $200.2K | Sale | 10,800 | $18.54 | Discretionary |
| Feb 16, 2017 | ATRA | $37.4K | Sale | 2,400 | $15.57 | Discretionary |
| Feb 15, 2017 | ATRA | $0 | Option Exercise | 5,907 | $N/A | Discretionary |
| Feb 15, 2017 | ATRA | $37.3K | Sale | 2,400 | $15.54 | Discretionary |
| Jan 18, 2017 | ATRA | $34.7K | Sale | 2,400 | $14.47 | Discretionary |
| Jan 17, 2017 | ATRA | $50.7K | Sale | 3,600 | $14.08 | Discretionary |
| Jan 6, 2017 | ATRA | $102.6K | Sale | 6,000 | $17.10 | Discretionary |
| Jan 5, 2017 | ATRA | $39.3K | Sale | 2,400 | $16.36 | Discretionary |
| Dec 23, 2016 | ATRA | $36.6K | Sale | 2,400 | $15.25 | Discretionary |
| Dec 22, 2016 | ATRA | $34.9K | Sale | 2,300 | $15.17 | Discretionary |
| Dec 22, 2016 | ATRA | $1.6K | Sale | 100 | $15.82 | Discretionary |
| Dec 7, 2016 | ATRA | $62.3K | Sale | 3,600 | $17.30 | Discretionary |
| Dec 6, 2016 | ATRA | $66.8K | Sale | 3,600 | $18.55 | Discretionary |
| Nov 23, 2016 | ATRA | $46.0K | Sale | 2,500 | $18.40 | Discretionary |
| Nov 23, 2016 | ATRA | $21.1K | Sale | 1,100 | $19.22 | Discretionary |
| Nov 22, 2016 | ATRA | $153.0K | Sale | 8,400 | $18.21 | Discretionary |
| Nov 15, 2016 | ATRA | $0 | Option Exercise | 5,908 | $N/A | Discretionary |
| Oct 27, 2016 | ATRA | $32.9K | Sale | 2,400 | $13.70 | Discretionary |
| Oct 26, 2016 | ATRA | $33.4K | Sale | 2,400 | $13.91 | Discretionary |