Atara Biotherapeutics

ATRA

Date	Type	Insider	Position	Ø-Price	Volume
9/4/2026	Buy	Cherry, Brian N.	Director	$9.6	$999,994
8/17/2026	Sell	Nguyen, Anhco	President and CEO	$8.1	$40,883
5/18/2026	Sell	Grant-Huerta, Yanina	Chief Accounting Officer	$9.1	$22,036
5/18/2026	Sell	Nguyen, Anhco	President and CEO	$9.1	$47,845
5/7/2026	Buy	Ecor1 Capital, LLC	Ten Percent Owner	$9.4	$4,744,255
5/7/2026	Sell	Panacea Innovation Ltd	Ten Percent Owner	$10.1	$3,165,021
3/2/2026	Sell	Nguyen, Anhco	President and CEO	$5.1	$15,238
3/2/2026	Sell	Grant-Huerta, Yanina	Chief Accounting Officer	$5.1	$10,691
1/12/2026	Sell	Panacea Innovation Ltd	Ten Percent Owner	$6.1	$489,019
11/17/2025	Sell	Grant-Huerta, Yanina	Chief Accounting Officer	$13.2	$23,788
11/17/2025	Sell	Nguyen, Anhco	President and CEO	$13.2	$38,438
8/18/2025	Sell	Grant-Huerta, Yanina	Chief Accounting Officer	$11.6	$21,009
8/18/2025	Sell	Nguyen, Anhco	President and CEO	$11.6	$34,361
8/15/2025	Buy	Panacea Innovation Ltd	Ten Percent Owner	$12.2	$670,423
7/17/2025	Buy	Panacea Innovation Ltd	Ten Percent Owner	$9.6	$186,372
5/16/2025	Sell	Nguyen, Anhco	President and CEO	$6.8	$22,156
5/16/2025	Sell	Grant-Huerta, Yanina	Chief Accounting Officer	$6.8	$15,000
3/3/2025	Sell	Henrich, Jill	EVP, Chief Regulatory Officer	$7.0	$7,410
3/3/2025	Sell	Hyllengren, Eric J.	EVP, CFO and COO	$7.0	$8,473
3/3/2025	Sell	Nguyen, Anhco	President and CEO	$7.0	$23,307
11/18/2024	Sell	Nguyen, Anhco	President and CEO	$11.2	$18,633
11/18/2024	Sell	Hyllengren, Eric J.	EVP, CFO and COO	$11.2	$15,274
11/18/2024	Sell	Henrich, Jill	EVP, Chief Regulatory Officer	$11.2	$11,198