Gad Soffer, Chief Operating Officer at Atara Biotherapeutics, Inc. (ATRA), sold 7,136 shares at $19.27 ($138K) on 2016-11-16, disclosed to the SEC on 2016-11-16.
Open-market sale of $138k ATRA by Chief Operating 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.
| Filing → |
| ATRA | SELL | 2017-08-17 | $141K | — | Filing → |
| ATRA | SELL | 2017-05-17 | $192K | — | Filing → |
| ATRA | SELL | 2017-05-17 | $86K | — | Filing → |