Nguyen AnhCo 4
4 · Atara Biotherapeutics, Inc. · Filed Mar 4, 2026
Insider Transaction Report
Form 4
Nguyen AnhCo
DirectorPresident and CEO
Transactions
- Sale
Common Stock
[F1][F2]2026-03-02$5.08/sh−198$1,006→ 64,776 total - Sale
Common Stock
[F1][F2]2026-03-02$5.08/sh−58$295→ 64,718 total - Sale
Common Stock
[F1][F2]2026-03-02$5.09/sh−1,298$6,602→ 63,420 total - Sale
Common Stock
[F1][F2]2026-03-02$5.09/sh−1,442$7,335→ 61,978 total
Footnotes (2)
- [F1]Shares sold automatically to satisfy tax withholding obligations in connection with the vesting of previously granted restricted stock units, pursuant to a sale-to-cover provision in the award agreement.
- [F2]The sale price of the reporting person's shares represents the weighted average price of all shares sold by a broker on March 2, 2026 on behalf of a group of employees of the Issuer to satisfy the payment of withholding tax liability of such employees.
Signature
/s/ John Chao, Attorney-in-Fact for AnhCo Nguyen|2026-03-04