AnhCo Nguyen, President and CEO at Atara Biotherapeutics, Inc. (ATRA), sold 2,996 shares at $5.08 ($15K) on 2026-03-02, disclosed to the SEC on 2026-03-04.
Open-market sale of $15k ATRA by President and CEO. 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 | $5.08 | 58 | $295 | 1.9% |
| 2 | $5.08 | 198 | $1K | 6.6% |
| 3 | $5.09 | 1,298 | $7K | 43.3% |
| 4 | $5.09 | 1,442 | $7K | 48.1% |
| Total | $5.09 avg | 2,996 | $15K | 100% |
| Filing → |
| ATRA | SELL | 2025-11-19 | $38K | — | Filing → |
| ATRA | SELL | 2025-08-20 | $34K | — | Filing → |
| ATRA | SELL | 2025-05-20 | $22K | — | Filing → |