Isaac E. Ciechanover, Chief Executive Officer at Atara Biotherapeutics, Inc. (ATRA), sold 7,800 shares at $36.75 ($302K) on 2019-03-28, disclosed to the SEC on 2019-04-01.
Open-market sale of $302k ATRA by Chief Executive Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $36.75 | 2,000 | $74K | 24.4% |
| 2 | $38.02 | 1,600 | $61K | 20.2% |
| 3 | $38.59 | 300 | $12K | 3.8% |
| 4 | $39.81 | 3,700 | $147K | 48.8% |
| 5 | $41.70 | 200 | $8K | 2.8% |
| Total | $38.66 avg | 7,800 |
| $302K |
| 100% |
| Filing → |
| ATRA | SELL | 2018-01-24 | $1.7M | — | Filing → |
| ATRA | SELL | 2017-07-26 | $91K | — | Filing → |