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

Anh Co Nguyen is President and CEO of Atara Biotherapeutics, Inc.. Currently has a direct ownership of 77,454 shares of ATRA, which is worth approximately $882,975. The most recent transaction as insider was on Nov 18, 2024, when has been sold 1,664 shares (Common Stock) at a price of $11.2 per share, resulting in proceeds of $18,636. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 77.5K

2.1% 3M change

72.05% 12M change

Total Value Held $882,975

AnhCo Nguyen Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
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

Anh Co Nguyen

President and CEO

Thousand Oaks, CA

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