SEC Form S-8 filed by Atara Biotherapeutics Inc.

As filed with the Securities and Exchange Commission on January 17, 2025

Registration No. 333-  

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

ATARA BIOTHERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

2380 Conejo Spectrum Street, Suite 200

Thousand Oaks, California 91320

(805) 623-4211

(Address, including zip code and telephone number, of Registrant’s principal executive offices)

Atara Biotherapeutics, Inc. 2024 Equity Incentive Plan

AnhCo Nguyen, Ph.D.

President and Chief Executive Officer

2380 Conejo Spectrum Street, Suite 200

Thousand Oaks, California 91320

(805) 623-4211

(Name, address, including zip code and telephone number, including area code, of agent for service)

Copies to:

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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 7(a)(2)(B) of the Securities Act. ☐

EXPLANATORY NOTE

This Registration Statement on Form S-8 (this “Registration Statement”) is being filed by Atara Biotherapeutics, Inc., a Delaware corporation (the “Registrant”), relating to 155,000 shares of its common stock, par value $0.0001 per share (the “Common Stock”), issuable under the Atara Biotherapeutics, Inc. 2024 Equity Incentive Plan (the “2024 Plan”), pursuant to the share recycling provisions set forth in Section 3(b) of the 2024 Plan. The Registrant filed with the Securities and Exchange Commission (the “SEC”) on June 11, 2024 a Registration Statement on Form S-8 (Registration No. 333-280125) relating to shares of Common Stock issuable under the 2024 Plan (the “Prior Registration Statement”). The Prior Registration Statement is currently effective. This Registration Statement relates to securities of the same class as those to which the Prior Registration Statement relates and is submitted in accordance with General Instruction E of Form S-8 regarding Registration of Additional Securities. Pursuant to General Instruction E of Form S-8, the contents of the Prior Registration Statement are incorporated herein by reference and made part of this Registration Statement, except for Items 3 and 8, which are being updated by this Registration Statement.

PART II

ITEM 3. INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

The following documents filed by the Registrant with the SEC are incorporated by reference into this Registration Statement:

ITEM 8. EXHIBITS

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Thousand Oaks, State of California, on this 17th day of January, 2025.

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints AnhCo Nguyen, Ph.D. and Eric Hyllengren, and each of them, as his or her true and lawful attorneys-in-fact and agents, each with the full power of substitution, for him or her and in his or her name, place or stead, in any and all capacities, to sign any and all amendments to this Registration Statement (including post-effective amendments), and to sign any registration statement for the same offering covered by this Registration Statement that is to be effective upon filing pursuant to Rule 462(b) promulgated under the Securities Act of 1933, as amended, and all post-effective amendments thereto, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or their, his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.