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 Jun 7, 2016 involved selling 6,000 shares valued at $121.5K.
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 Jun 7, 2016, when they sold 6,000 shares at $20.25 per share.
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| $17.35 |
| Discretionary |
| May 25, 2016 | ATRA | $64.9K | Sale | 3,600 | $18.03 | Discretionary |
| May 16, 2016 | ATRA | $0 | Option Exercise | 5,907 | $N/A | Discretionary |
| Apr 26, 2016 | ATRA | $2.0K | Sale | 100 | $20.15 | Discretionary |
| Apr 25, 2016 | ATRA | $24.1K | Sale | 1,200 | $20.12 | Discretionary |
| Apr 12, 2016 | ATRA | $24.2K | Sale | 1,200 | $20.20 | Discretionary |
| Apr 11, 2016 | ATRA | $245.2K | Sale | 12,010 | $20.42 | Discretionary |
| Apr 1, 2016 | ATRA | $17.8K | Sale | 890 | $20.04 | Discretionary |
| Mar 31, 2016 | ATRA | $6.0K | Sale | 300 | $20.01 | Discretionary |
| Feb 16, 2016 | ATRA | $0 | Option Exercise | 5,908 | $N/A | Discretionary |
| Feb 9, 2016 | ATRA | $0 | Award | 163,973 | $N/A | Discretionary |
| Jan 14, 2016 | ATRA | $24.1K | Sale | 1,200 | $20.07 | Discretionary |
| Jan 13, 2016 | ATRA | $24.4K | Sale | 1,200 | $20.32 | Discretionary |
| Dec 31, 2015 | ATRA | $21.7K | Sale | 800 | $27.17 | Discretionary |
| Dec 31, 2015 | ATRA | $10.4K | Sale | 400 | $26.00 | Discretionary |
| Dec 30, 2015 | ATRA | $30.3K | Sale | 1,200 | $25.21 | Discretionary |
| Dec 15, 2015 | ATRA | $15.1K | Sale | 700 | $21.55 | Discretionary |
| Dec 15, 2015 | ATRA | $6.2K | Sale | 300 | $20.69 | Discretionary |
| Dec 15, 2015 | ATRA | $4.4K | Sale | 200 | $22.21 | Discretionary |
| Dec 14, 2015 | ATRA | $10.0K | Sale | 400 | $24.93 | Discretionary |
| Dec 14, 2015 | ATRA | $7.0K | Sale | 300 | $23.34 | Discretionary |
| Dec 14, 2015 | ATRA | $8.6K | Sale | 400 | $21.54 | Discretionary |
| Dec 14, 2015 | ATRA | $2.6K | Sale | 100 | $25.84 | Discretionary |
| Dec 4, 2015 | ATRA | $45.5K | Sale | 1,200 | $37.93 | Discretionary |
| Dec 4, 2015 | ATRA | $29.6K | Sale | 800 | $36.99 | Discretionary |
| Dec 3, 2015 | ATRA | $25.3K | Sale | 700 | $36.21 | Discretionary |
| Dec 3, 2015 | ATRA | $23.1K | Sale | 600 | $38.54 | Discretionary |
| Dec 3, 2015 | ATRA | $26.2K | Sale | 700 | $37.43 | Discretionary |
| Nov 24, 2015 | ATRA | $7.3K | Sale | 200 | $36.71 | Discretionary |