| 2019-02-15 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 775 | $39.59 | $30,682.25 | -0.3% | → |
| 2019-02-11 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 13,975 | $38.55 | $538,736.25 | -4.9% | → |
| 2019-02-06 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 12,375 | $38.62 | $477,921.52 | -2.2% | → |
| 2018-11-15 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 775 | $33.81 | $26,202.75 | -0.3% | → |
| 2017-11-15 | ATRA | EVP, R&D & Chief Scientific Of | Sale+OE | 1,604 | $13.36 | $21,429.44 | -0.5% | → |
| 2017-10-16 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 6,000 | $14.35 | $86,100.00 | -1.7% | → |
| 2017-09-15 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 6,000 | $15.30 | $91,800.00 | -1.7% | → |
| 2017-08-15 | ATRA | EVP, R&D & Chief Scientific Of | Sale+OE | 7,604 | $14.75 | $112,159.00 | -2.1% | → |
| 2017-07-17 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 6,000 | $14.92 | $89,520.00 | -1.6% | → |
| 2017-06-15 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 6,000 | $12.65 | $75,900.00 | -1.6% | → |
| 2017-05-15 | ATRA | EVP, R&D & Chief Scientific Of | Sale+OE | 7,604 | $14.99 | $113,983.96 | -2.0% | → |
| 2017-04-17 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 6,000 | $17.28 | $103,680.00 | -1.6% | → |
| 2017-03-15 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 6,000 | $19.60 | $117,600.00 | -1.5% | → |
| 2017-02-15 | ATRA | EVP, R&D & Chief Scientific Of | Sale+OE | 7,604 | $15.49 | $117,785.96 | -1.9% | → |
| 2017-02-09 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 13,975 | $15.46 | $216,053.50 | -3.4% | → |
| 2017-01-17 | ATRA | EVP, R&D & Chief Scientific Of | Sell | 6,000 | $14.27 | $85,620.00 | -1.6% | → |
| 2016-12-15 | ATRA | Chief Medical Officer | Sell | 6,000 | $15.40 | $92,400.00 | -1.6% | → |
| 2016-11-21 | ATRA | Chief Medical Officer | Sell | 7,068 | $17.85 | $126,163.80 | -1.8% | → |
| 2016-11-15 | ATRA | Chief Medical Officer | Sale+OE | 1,604 | $19.95 | $31,999.80 | -0.4% | → |
| 2016-08-15 | ATRA | Chief Medical Officer | Sale+OE | 1,346 | $22.32 | $30,040.68 | -0.2% | → |
| 2016-05-16 | ATRA | Chief Medical Officer | Sale+OE | 1,605 | $15.57 | $24,989.85 | -0.5% | → |
| 2016-02-16 | ATRA | Chief Medical Officer | Sale+OE | 3,208 | $15.43 | $49,499.44 | -1.1% | → |
| 2015-08-31 | ATRA | Chief Medical Officer | Sell | 5,000 | $41.99 | $209,961.00 | -1.0% | → |
| 2015-08-17 | ATRA | Chief Medical Officer | Sale+OE | 1,604 | $45.91 | $73,632.00 | -0.3% | → |
| 2015-07-31 | ATRA | Chief Medical Officer | Sell | 2,500 | $55.43 | $138,575.00 | -1.0% | → |
| 2015-07-15 | ATRA | Chief Medical Officer | Sell | 2,500 | $62.94 | $157,353.00 | -0.5% | → |
| 2015-07-01 | ATRA | Chief Medical Officer | Sell | 2,500 | $51.68 | $129,196.00 | -0.5% | → |
| 2015-06-15 | ATRA | Chief Medical Officer | Sell | 7,500 | $46.42 | $348,116.00 | -1.0% | → |
| 2015-06-01 | ATRA | Chief Medical Officer | Sell | 2,500 | $41.47 | $103,664.50 | -0.3% | → |