AnhCo Nguyen - Mar 3, 2025 Form 4 Insider Report for Atara Biotherapeutics, Inc. (ATRA)

Signature
/s/ John Chao, Attorney-in-Fact for AnhCo Nguyen
Stock symbol
ATRA
Transactions as of
Mar 3, 2025
Transactions value $
-$23,307
Form type
4
Date filed
3/5/2025, 05:17 PM
Previous filing
Nov 20, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ATRA Common Stock Sale -$23.3K -3.33K -4.3% $7.00 74.1K Mar 3, 2025 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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 3, 2025 on behalf of a group of employees of the Issuer to satisfy the payment of withholding tax liability of such employees.