Carol Giltner Gallagher - Nov 13, 2023 Form 4 Insider Report for Atara Biotherapeutics, Inc. (ATRA)

Role: Director
Signature: /s/ Jeff Kiekhofer, Attorney-in-Fact
Stock symbol: ATRA
Transactions as of: Nov 13, 2023
Transactions value $: $68,214
Form type: 4
Date filed: 11/15/2023, 05:07 PM
Previous filing: Jun 23, 2023
Next filing: Jan 3, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATRA	Common Stock	Purchase	$40K	+179K	+94.51%	$0.22^*	368K	Nov 13, 2023	Direct	F1
transaction	ATRA	Common Stock	Purchase	$28.2K	+91K	+24.69%	$0.31^*	459K	Nov 14, 2023	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the weighted average purchase price. The shares were purchased in multiple transactions at prices ranging from $0.205 to $0.251. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this Form 4.
F2	Represents the weighted average purchase price. The shares were purchased in multiple transactions at prices ranging from $0.2862 to $0.3229.

Content

Represents the weighted average purchase price. The shares were purchased in multiple transactions at prices ranging from $0.205 to $0.251. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this Form 4.

Represents the weighted average purchase price. The shares were purchased in multiple transactions at prices ranging from $0.2862 to $0.3229.