Form 4 Tracker
Anhco Nguyen

Director, President and CEO · 3 filings · Latest: May 18, 2026

Atara Biotherapeutics, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
ATRA
Anhco NguyenDirector, President and CEOMay 18, 2026
Sale
$9.135,241$47.8K137,837
ATRA
Nguyen AnhCoMay 18, 2026
Proposed Sale
$10.485,981$62.7K
ATRA
Anhco NguyenDirector, President and CEOMar 2, 2026
Sale
$5.092,996$15.2K61,978
ATRA
Nguyen AnhCoMar 2, 2026
Proposed Sale
$5.423,355$18.2K
ATRA
Nguyen AnhCoNov 17, 2025
Proposed Sale
$13.763,346$46.0K
ATRA
Nguyen AnhCoAug 18, 2025
Proposed Sale
$12.293,346$41.1K
ATRA
Nguyen AnhCoMay 16, 2025
Proposed Sale
$7.613,471$26.4K
ATRA
Nguyen AnhCoMar 3, 2025
Proposed Sale
$6.913,929$27.1K
ATRA
Nguyen AnhCoNov 18, 2024
Proposed Sale
$12.001,857$22.3K