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 Apr 27, 2018 involved selling 3,900 shares valued at $166.3K.
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 Apr 27, 2018, when they sold 3,900 shares at $42.63 per share.
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| $42.60 |
| Discretionary |
| Apr 26, 2018 | ATRA | $138.6K | Sale | 3,300 | $41.99 | Discretionary |
| Apr 12, 2018 | ATRA | $136.4K | Sale | 3,200 | $42.63 | Discretionary |
| Apr 12, 2018 | ATRA | $52.4K | Sale | 1,200 | $43.69 | Discretionary |
| Apr 11, 2018 | ATRA | $163.1K | Sale | 4,000 | $40.77 | Discretionary |
| Apr 11, 2018 | ATRA | $16.5K | Sale | 400 | $41.37 | Discretionary |
| Mar 27, 2018 | ATRA | $7.7K | Sale | 200 | $38.40 | Discretionary |
| Mar 27, 2018 | ATRA | $98.9K | Sale | 2,700 | $36.63 | Discretionary |
| Mar 27, 2018 | ATRA | $7.7K | Sale | 200 | $38.40 | Discretionary |
| Mar 27, 2018 | ATRA | $56.5K | Sale | 1,500 | $37.68 | Discretionary |
| Mar 26, 2018 | ATRA | $127.1K | Sale | 3,200 | $39.72 | Discretionary |
| Mar 26, 2018 | ATRA | $49.3K | Sale | 1,200 | $41.12 | Discretionary |
| Mar 16, 2018 | ATRA | $55.4K | Sale | 1,300 | $42.59 | Discretionary |
| Mar 16, 2018 | ATRA | $129.4K | Sale | 3,100 | $41.75 | Discretionary |
| Mar 15, 2018 | ATRA | $117.2K | Sale | 2,800 | $41.87 | Discretionary |
| Mar 15, 2018 | ATRA | $68.7K | Sale | 1,600 | $42.95 | Discretionary |
| Mar 12, 2018 | ATRA | $32.3K | Sale | 700 | $46.17 | Discretionary |
| Mar 12, 2018 | ATRA | $14.0K | Sale | 300 | $46.65 | Discretionary |
| Feb 22, 2018 | ATRA | $70.4K | Sale | 1,600 | $44.03 | Discretionary |
| Feb 22, 2018 | ATRA | $63.0K | Sale | 1,400 | $45.00 | Discretionary |
| Feb 22, 2018 | ATRA | $68.4K | Sale | 1,600 | $42.74 | Discretionary |
| Feb 21, 2018 | ATRA | $69.3K | Sale | 1,589 | $43.60 | Discretionary |
| Feb 21, 2018 | ATRA | $129.7K | Sale | 2,911 | $44.55 | Discretionary |
| Feb 20, 2018 | ATRA | $393.9K | Sale | 8,700 | $45.28 | Discretionary |
| Feb 16, 2018 | ATRA | $244.3K | Sale | 5,100 | $47.91 | Discretionary |
| Feb 16, 2018 | ATRA | $74.5K | Sale | 1,600 | $46.55 | Discretionary |
| Feb 16, 2018 | ATRA | $136.3K | Sale | 3,000 | $45.44 | Discretionary |
| Feb 16, 2018 | ATRA | $14.5K | Sale | 300 | $48.43 | Discretionary |
| Feb 15, 2018 | ATRA | $226.7K | Sale | 4,767 | $47.56 | Discretionary |