Maria Roncarolo - Jun 10, 2025 Form 4 Insider Report for Atara Biotherapeutics, Inc. (ATRA)

Role
Director
Signature
/s/ John Chao, Attorney-in-Fact for Maria Roncarolo
Stock symbol
ATRA
Transactions as of
Jun 10, 2025
Transactions value $
$0
Form type
4
Date filed
6/12/2025, 08:39 PM
Previous filing
Apr 2, 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Roncarolo Maria Grazia Director C/O ATARA BIOTHERAPEUTICS, INC., 1280 RANCHO CONEJO BOULEVARD, THOUSAND OAKS /s/ John Chao, Attorney-in-Fact for Maria Roncarolo 2025-06-12 0001811671

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ATRA Common Stock Award $0 +7.83K +82.05% $0.00 17.4K Jun 10, 2025 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These restricted stock units shall vest on the earlier of June 10, 2026 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.
F2 This amount reflects the 1:25 reverse stock split effected by the Issuer on June 20, 2024.