Anh Co Nguyen Atara Biotherapeutics, Inc. (ATRA) insider trading activity

ATRA Quotes by TradingView

Anh Co Nguyen is President and CEO of Atara Biotherapeutics, Inc.. Currently has a direct ownership of 64,974 shares of ATRA, which is worth approximately $894,042. The most recent transaction as insider was on Nov 17, 2025, when has been sold 2,915 shares (Common Stock) at a price of $13.19 per share, resulting in proceeds of $38,448. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 65K
4.29% 3M change
16.11% 12M change
Total Value Held $894,042

AnhCo Nguyen Transaction History

Date Transaction Value Shares Traded Shares Held Form
Nov 17 2025
SELL
Open market or private sale
$38,448 $13.19 p/Share
2,915 Reduced 4.29%
64,974 Common Stock
Aug 18 2025
SELL
Open market or private sale
$34,371 $11.62 p/Share
2,958 Reduced 4.18%
67,889 Common Stock
May 16 2025
SELL
Open market or private sale
$22,145 $6.76 p/Share
3,276 Reduced 4.42%
70,847 Common Stock
Mar 03 2025
SELL
Open market or private sale
$23,317 $7.0 p/Share
3,331 Reduced 4.3%
74,123 Common Stock
Nov 18 2024
SELL
Open market or private sale
$18,636 $11.2 p/Share
1,664 Reduced 2.1%
77,454 Common Stock
Sep 09 2024
BUY
Grant, award, or other acquisition
-
45,000 Added 36.26%
79,118 Common Stock
Aug 16 2024
SELL
Open market or private sale
$12,073 $6.63 p/Share
1,821 Reduced 5.07%
34,118 Common Stock
May 16 2024
SELL
Open market or private sale
$26,597 $0.62 p/Share
42,899 Reduced 4.56%
898,498 Common Stock
Mar 04 2024
SELL
Open market or private sale
$7,737 $0.72 p/Share
10,746 Reduced 1.13%
941,397 Common Stock
Jan 08 2024
BUY
Grant, award, or other acquisition
-
675,000 Added 41.48%
952,143 Common Stock
Nov 16 2023
SELL
Open market or private sale
$3,453 $0.39 p/Share
8,856 Reduced 3.1%
277,143 Common Stock
Aug 16 2023
SELL
Open market or private sale
$24,957 $1.65 p/Share
15,126 Reduced 5.02%
285,999 Common Stock
AN

Anh Co Nguyen

President and CEO
Thousand Oaks, CA

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