Isaac E. Ciechanover, Chief Executive Officer at Atara Biotherapeutics, Inc. (ATRA), sold 5,500 shares at $16.89 ($91K) on 2017-07-24, disclosed to the SEC on 2017-07-26.
Open-market sale of $91k 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.
Something here stands out, but not much.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $16.89 | 2,500 | $42K | 46.6% |
| 2 | $17.32 | 300 | $5K | 5.7% |
| 3 | $15.97 | 2,500 | $40K | 44.0% |
| 4 | $16.79 | 200 | $3K | 3.7% |
| Total | $16.49 avg | 5,500 | $91K | 100% |
| Filing → |
| ATRA | SELL | 2019-01-25 | $273K | — | Filing → |
| ATRA | SELL | 2018-01-24 | $1.7M | — | Filing → |