Isaac E. Ciechanover, Chief Executive Officer at Atara Biotherapeutics, Inc. (ATRA), sold 11,000 shares at $40.48 ($437K) on 2019-03-14, disclosed to the SEC on 2019-03-18.
Open-market sale of $437k 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 | $39.10 | 700 | $27K | 6.3% |
| 2 | $40.48 | 3,200 | $130K | 29.6% |
| 3 | $40.48 | 3,200 | $130K | 29.6% |
| 4 | $38.73 | 3,900 | $151K | 34.5% |
| Total | $39.77 avg | 11,000 | $437K | 100% |
| Filing → |
| ATRA | SELL | 2019-04-29 | $262K | — | Filing → |
| ATRA | SELL | 2019-04-12 | $286K | — | Filing → |
| ATRA | SELL | 2019-04-01 | $81K | — | Filing → |