Isaac E. Ciechanover, Chief Executive Officer at Atara Biotherapeutics, Inc. (ATRA), sold 7,800 shares at $33.89 ($270K) on 2018-11-14, disclosed to the SEC on 2018-11-15.
Seasonal sale ($270k) by Chief Executive Officer — this insider has traded ATRA in November in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $33.89 | 3,300 | $112K | 41.4% |
| 2 | $34.51 | 600 | $21K | 7.7% |
| 3 | $34.67 | 1,100 | $38K | 14.1% |
| 4 | $35.49 | 2,800 | $99K | 36.8% |
| Total | $34.62 avg | 7,800 | $270K | 100% |
| Filing → |
| ATRA | SELL | 2019-04-29 | $262K | — | Filing → |
| ATRA | SELL | 2019-04-12 | $286K | — | Filing → |
| ATRA | SELL | 2019-04-01 | $81K | — | Filing → |