Insider · CIK 0001977970

Nguyen AnhCo

Reports to the SEC for 1 company · THOUSAND OAKS, CA

sec.gov

Transactions

Companies

Filings

CIK

0001977970

Forms 4 and 5

Insider transactions

25 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-17	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−5,062 sh	$8.08	−$40.9K	132,775
2026-05-18	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−5,241 sh	$9.13	−$47.8K	137,837
2026-03-09	ATRAAtara Biotherapeutics, Inc.A Award	Director, President and CEO	AAward	+81.1K sh	—	—	143,078
2026-03-02	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−198 sh	$5.08	−$1,005.642	64,776
2026-03-02	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−58 sh	$5.08	−$294.64	64,718
2026-03-02	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−1,298 sh	$5.09	−$6,601.628	63,420
2026-03-02	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−1,442 sh	$5.09	−$7,335.454	61,978
2025-11-17	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−2,859 sh	$13.19	−$37.7K	65,030
2025-11-17	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−56 sh	$13.19	−$738.528	64,974
2025-08-18	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−57 sh	$11.61	−$661.941	70,790
2025-08-18	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−1,281 sh	$11.62	−$14.9K	69,509
2025-08-18	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−1,620 sh	$11.62	−$18.8K	67,889
2025-05-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−3,276 sh	$6.76	−$22.2K	70,847
2025-03-03	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−3,331 sh	$7.00	−$23.3K	74,123
2024-11-18	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−1,664 sh	$11.20	−$18.6K	77,454
2024-09-09	ATRAAtara Biotherapeutics, Inc.A Award	Director, President and CEO	AAward	+45K sh	—	—	79,118
2024-08-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−1,468 sh	$6.63	−$9,731.372	34,471
2024-08-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−297 sh	$6.63	−$1,969.11	34,174
2024-08-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−56 sh	$6.63	−$371.336	34,118
2024-05-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−42.9K sh	$0.62	−$26.5K	898,498
2024-03-04	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−10.7K sh	$0.72	−$7,737.12	941,397
2024-01-08	ATRAAtara Biotherapeutics, Inc.A Award	Director, President and CEO	AAward	+675K sh	—	—	952,143
2023-11-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−8,856 sh	$0.39	−$3,444.984	277,143
2023-08-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−5,849 sh	$1.65	−$9,662.548	295,276
2023-08-16	ATRAAtara Biotherapeutics, Inc.S Sale	Director, President and CEO	SSale	−9,277 sh	$1.65	−$15.3K	285,999

Recent filings

Accepted (ET)
Aug 264
Nguyen AnhCo0000905148-26-003960
SEC(opens sec.gov)
May 204
Nguyen AnhCo0000905148-26-002571
SEC(opens sec.gov)
Mar 114
Nguyen AnhCo0000905148-26-001225
SEC(opens sec.gov)
Mar 44
Nguyen AnhCo0000905148-26-001143
SEC(opens sec.gov)
Nov 194
Nguyen AnhCo0000905148-25-004141
SEC(opens sec.gov)
Aug 204
Nguyen AnhCo0000905148-25-003070
SEC(opens sec.gov)
May 204
Nguyen AnhCo0000905148-25-001865
SEC(opens sec.gov)
Mar 54
Nguyen AnhCo0000905148-25-000865
SEC(opens sec.gov)
Nov 204
Nguyen AnhCo0000905148-24-003241
SEC(opens sec.gov)
Sep 114
Nguyen AnhCo0000905148-24-002545
SEC(opens sec.gov)
Aug 204
Nguyen AnhCo0000905148-24-002305
SEC(opens sec.gov)
May 204
Nguyen AnhCo0000905148-24-001560
SEC(opens sec.gov)

Companies

Atara Biotherapeutics, Inc.Director, President and CEOATRA

Address

C/O ATARA BIOTHERAPEUTICS, INC. 1280 RANCHO CONEJO BOULEVARD

THOUSAND OAKS, CA, 91320