Mitchall G. Clark, Chief R & QA Officer at Atara Biotherapeutics, Inc. (ATRA), sold 8,306 shares at $15.15 ($126K) on 2016-05-16, disclosed to the SEC on 2016-05-18.
Open-market sale of $126k ATRA by Chief R & QA 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 | $15.15 | 4,153 | $63K | 50.0% |
| 2 | $15.15 | 4,153 | $63K | 50.0% |
| Total | $15.15 avg | 8,306 | $126K | 100% |
| Filing → |
| ATRA | SELL | 2018-04-03 | $898K | — | Filing → |
| ATRA | SELL | 2018-03-28 | $3.8M | — | Filing → |
| ATRA | SELL | 2017-11-17 | $47K | — | Filing → |