Isaac E. Ciechanover, Chief Executive Officer at Atara Biotherapeutics, Inc. (ATRA), sold 11,700 shares at $40.09 ($472K) on 2018-10-04, disclosed to the SEC on 2018-10-05.
Seasonal sale ($472k) by Chief Executive Officer — this insider has traded ATRA in October in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $40.09 | 2,600 | $104K | 22.1% |
| 2 | $40.09 | 2,600 | $104K | 22.1% |
| 3 | $41.34 | 1,300 | $54K | 11.4% |
| 4 | $41.34 | 1,300 | $54K | 11.4% |
| 5 | $39.58 | 1,900 | $75K | 15.9% |
| 6 | $40.25 | 1,900 |
| $76K |
| 16.2% |
| 7 | $41.00 | 100 | $4K | 0.9% |
| Total | $40.32 avg | 11,700 | $472K | 100% |
| Filing → |
| ATRA | SELL | 2019-04-29 | $262K | — | Filing → |
| ATRA | SELL | 2019-04-12 | $286K | — | Filing → |
| ATRA | SELL | 2019-04-01 | $81K | — | Filing → |