The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Nguyen Anhco since 2023.
This trader's CIK number is 1977970.
At the time of last reporting, Nguyen Anhco was the President and CEO of Atara Biotherapeutics, Inc.. (stock ticker symbol ATRA).
Also see all insider trading activities at Atara Biotherapeutics, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | ATRA | 0 | $0 | 9,565 | $79,819 | 0 | $0 |
| 2024 | ATRA | 0 | $0 | 57,130 | $64,911 | 0 | $0 |
| 2023 | ATRA | 0 | $0 | 23,982 | $28,432 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-18 | ATRA | Sale | 2,958 | 11.62 | 34,357 |
| 2025-05-16 | ATRA | Sale | 3,276 | 6.76 | 22,155 |
| 2025-03-03 | ATRA | Sale | 3,331 | 7.00 | 23,307 |
| 2024-11-18 | ATRA | Sale | 1,664 | 11.20 | 18,633 |
| 2024-08-16 | ATRA | Sale | 1,821 | 6.63 | 12,073 |
| 2024-05-16 | ATRA | Sale | 42,899 | .62 | 26,468 |
| 2024-03-04 | ATRA | Sale | 10,746 | .72 | 7,737 |
| 2023-11-16 | ATRA | Sale | 8,856 | .39 | 3,444 |
| 2023-08-16 | ATRA | Sale | 15,126 | 1.65 | 24,988 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Nguyen Anhco (President and CEO of Atara Biotherapeutics, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.