Joe Newell, Chief Operations Officer at Atara Biotherapeutics, Inc. (ATRA), sold 3,116 shares at $15.61 ($49K) on 2021-09-15, disclosed to the SEC on 2021-09-17.
Scheduled sale ($49k) by Chief Operations Officer under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| Filing → |
| ATRA | SELL | 2021-09-24 | $179K | — | Filing → |
| ATRA | SELL | 2021-08-31 | $53K | — | Filing → |
| ATRA | SELL | 2021-08-19 | $30K | — | Filing → |