Isaac E. Ciechanover, Chief Executive Officer at Atara Biotherapeutics, Inc. (ATRA), sold 7,800 shares at $37.35 ($292K) on 2018-08-07, disclosed to the SEC on 2018-08-07.
Seasonal sale ($292k) by Chief Executive Officer — this insider has traded ATRA in August in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $37.48 | 3,900 | $146K | 50.1% |
| 2 | $37.35 | 3,600 | $134K | 46.1% |
| 3 | $37.75 | 300 | $11K | 3.9% |
| Total | $37.43 avg | 7,800 | $292K | 100% |
| Filing → |
| ATRA | SELL | 2019-04-29 | $262K | — | Filing → |
| ATRA | SELL | 2019-04-12 | $286K | — | Filing → |
| ATRA | SELL | 2019-04-01 | $81K | — | Filing → |