UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 5, 2025

 

Atara Biotherapeutics, Inc.

(Exact name of Registrant as Specified in Its Charter)

 

 

Delaware		001-36548		46-0920988
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification No.)

 

1280 Rancho Conejo Blvd
Thousand Oaks, California		91320
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (805) 623-4211

 

(Former Name or Former Address, if Changed Since Last Report)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.0001 per share		ATRA		The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

Item 8.01 Other Events.

On May 5, 2025, Atara Biotherapeutics, Inc. (the “Company”) issued a press release titled “Atara Biotherapeutics Provides Regulatory Updates on EBVALLO^™ (tabelecleucel)” announcing that the U.S. Food and Drug Administration (“FDA”) lifted the clinical hold on the Company’s active Investigational New Drug applications for the EBVALLO^™ (tabelecleucel) program that was placed in January 2025. The press release also announced that the FDA granted the Company a Type A meeting to discuss the plan to address the issues raised by the FDA in the Complete Response Letter issued in January 2025. A copy of the press release is filed herewith as Exhibit 99.1 and is incorporated by reference into this Item 8.01.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

 

Exhibit No.		Description
99.1		Press release, dated May 5, 2025
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

						ATARA BIOTHERAPEUTICS, INC.
Date:  May 6, 2025				By:		/s/ AnhCo Thieu Nguyen
						AnhCo Thieu Nguyen President and Chief Executive Officer (Duly Authorized Officer and Principal Executive Officer)