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 30, 2019 involved selling 1,500 shares valued at $35.5K.
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 May 30, 2019, when they sold 1,500 shares at $23.70 per share.
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| $22.72 |
| Discretionary |
| May 29, 2019 | ATRA | $16.9K | Sale | 725 | $23.30 | Discretionary |
| May 29, 2019 | ATRA | $50.3K | Sale | 2,200 | $22.85 | Discretionary |
| May 14, 2019 | ATRA | $97.2K | Sale | 3,900 | $24.92 | Discretionary |
| May 13, 2019 | ATRA | $84.8K | Sale | 3,500 | $24.23 | Discretionary |
| May 13, 2019 | ATRA | $10.0K | Sale | 400 | $24.95 | Discretionary |
| Apr 26, 2019 | ATRA | $130.5K | Sale | 3,900 | $33.47 | Discretionary |
| Apr 25, 2019 | ATRA | $120.9K | Sale | 3,600 | $33.57 | Discretionary |
| Apr 25, 2019 | ATRA | $10.2K | Sale | 300 | $33.99 | Discretionary |
| Apr 11, 2019 | ATRA | $141.5K | Sale | 3,900 | $36.27 | Discretionary |
| Apr 10, 2019 | ATRA | $144.5K | Sale | 3,900 | $37.04 | Discretionary |
| Mar 29, 2019 | ATRA | $147.3K | Sale | 3,700 | $39.81 | Discretionary |
| Mar 29, 2019 | ATRA | $8.3K | Sale | 200 | $41.70 | Discretionary |
| Mar 28, 2019 | ATRA | $60.8K | Sale | 1,600 | $38.02 | Discretionary |
| Mar 28, 2019 | ATRA | $73.5K | Sale | 2,000 | $36.75 | Discretionary |
| Mar 28, 2019 | ATRA | $11.6K | Sale | 300 | $38.59 | Discretionary |
| Mar 15, 2019 | ATRA | $151.0K | Sale | 3,900 | $38.73 | Discretionary |
| Mar 14, 2019 | ATRA | $27.4K | Sale | 700 | $39.10 | Discretionary |
| Mar 14, 2019 | ATRA | $129.5K | Sale | 3,200 | $40.48 | Discretionary |
| Feb 28, 2019 | ATRA | $140.9K | Sale | 3,900 | $36.13 | Discretionary |
| Feb 27, 2019 | ATRA | $133.9K | Sale | 3,700 | $36.20 | Discretionary |
| Feb 27, 2019 | ATRA | $7.0K | Sale | 200 | $35.22 | Discretionary |
| Feb 15, 2019 | ATRA | $47.6K | Payment | 1,176 | $40.45 | Discretionary |
| Feb 12, 2019 | ATRA | $152.1K | Sale | 3,900 | $39.01 | Discretionary |
| Feb 11, 2019 | ATRA | $150.2K | Sale | 3,900 | $38.52 | Discretionary |
| Feb 9, 2019 | ATRA | $782.3K | Payment | 20,324 | $38.49 | Discretionary |
| Feb 6, 2019 | ATRA | $0 | Payment | 24,683 | $N/A | Discretionary |
| Feb 6, 2019 | ATRA | $949.6K | Payment | 24,683 | $38.47 | Discretionary |
| Jan 24, 2019 | ATRA | $15.4K | Sale | 430 | $35.82 | Discretionary |