AnhCo Nguyen, EVP, Chief Sci. & Technology Officer at Atara Biotherapeutics, Inc. (ATRA), sold 8,856 shares at $0.39 ($3K) on 2023-11-16, disclosed to the SEC on 2023-11-20.
Open-market sale of $3k ATRA by EVP, Chief Sci. & Technology 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.
| Filing → |
| ATRA | SELL | 2026-03-04 | $15K | — | Filing → |
| ATRA | SELL | 2025-11-19 | $38K | — | Filing → |
| ATRA | SELL | 2025-08-20 | $34K | — | Filing → |