Updated Jul 16, 2026
Nguyen AnhCo has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $116K.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-20 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 5.2K | $9.13 | $48K |
| 2026-03-11 | ATRA | Atara Biotherapeutics, Inc. | A — Grant or award | 81.1K | $0.00 | |
| 2026-03-04 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 1.4K | $5.09 | $7K |
| 2026-03-04 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 1.3K | $5.09 | $7K |
| 2026-03-04 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 58 | $5.08 | $295 |
| 2026-03-04 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 198 | $5.08 | $1K |
| 2025-08-18 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 1.6K | $11.62 | $19K |
| 2025-08-18 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 1.3K | $11.62 | $15K |
| 2025-08-18 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 57 | $11.61 | $662 |
| 2024-11-20 | ATRA | Atara Biotherapeutics, Inc. | S — Open-market sale | 1.7K | $11.20 | $19K |
Nguyen AnhCo is a corporate insider — currently tracked as Insider of Atara Biotherapeutics, Inc. (ATRA). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 9 open-market sales ($116K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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