Isaac E. Ciechanover, Chief Executive Officer at Atara Biotherapeutics, Inc. (ATRA), sold 7,800 shares at $34.51 ($269K) on 2019-01-09, disclosed to the SEC on 2019-01-10.
Seasonal sale ($269k) by Chief Executive Officer — this insider has traded ATRA in January in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $34.51 | 1,900 | $66K | 24.3% |
| 2 | $35.16 | 2,000 | $70K | 26.1% |
| 3 | $33.93 | 1,700 | $58K | 21.4% |
| 4 | $34.50 | 2,200 | $76K | 28.2% |
| Total | $34.55 avg | 7,800 | $269K | 100% |
| Filing → |
| ATRA | SELL | 2019-04-29 | $262K | — | Filing → |
| ATRA | SELL | 2019-04-12 | $286K | — | Filing → |
| ATRA | SELL | 2019-04-01 | $81K | — | Filing → |