Atara Biotherapeutics Announces its 2020 Annual Meeting of Stockholders Will Be Held on June 16, 2020 in Virtual Format

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SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)-- Atara Biotherapeutics, Inc. (Nasdaq: ATRA) today announced that, due to public health and safety concerns related to the coronavirus (“COVID-19”) pandemic, recommendations and orders from federal, state and local authorities, and to support the health and well-being of its stockholders, employees, and others, it will host its 2020 Annual Meeting of Stockholders (“Annual Meeting”) as a virtual-only meeting that will be held via live audio webcast. The virtual Annual Meeting is expected to provide stockholders with the same rights and opportunities to participate as they would have at an in-person meeting.

The previously announced date and time of the Annual Meeting, Tuesday, June 16, 2020 at 9:00 a.m. Pacific Time, as disclosed in the previously distributed Notice of the Annual Meeting and Definitive Proxy Statement (the “Notice and Proxy Statement”), has not changed. Online access to the Annual Meeting will begin at 8:45 a.m. Pacific Time. Stockholders will not be able to attend the Annual Meeting in person.

Attending the Virtual Meeting as a Stockholder of Record

Atara’s stockholders of record as of April 17, 2020 (the “Record Date”) can attend the Annual Meeting by accessing the meeting center at www.virtualshareholdermeeting.com/ATRA2020 and entering the 16-digit control number on the proxy card or Notice of Internet Availability of Proxy Materials previously received. The webcast of the Annual Meeting will be archived for one year after the date of the Annual Meeting at www.virtualshareholdermeeting.com/ATRA2020. Instructions on how to connect to the Annual Meeting and participate via the Internet, including how to demonstrate proof of stock ownership, are also available at the meeting website.

If you do not have your 16-digit control number, you will be able to access and listen to the Annual Meeting, but you will not be able to vote your shares or submit questions during the Annual Meeting. See caption below titled “Attending the Annual Meeting as a Guest.”

Attending the Virtual Meeting as a Beneficial Owner

Beneficial stockholders as of the Record Date (i.e. shares held in “street name” through an intermediary, such as a bank or broker), who want to attend the Annual Meeting can attend using the 16-digit control number found on the notice and instructions received from their broker or other nominee.

Asking Questions

If you are attending the Annual Meeting as a stockholder of record or beneficial owner, questions can be submitted by accessing the meeting center at www.virtualshareholdermeeting.com/ATRA2020 and entering your 16-digit control number. Instructions on how to participate in the Annual Meeting are available on the meeting website.

Voting Shares

Stockholders of record and beneficial owners will be able to vote their shares electronically during the Annual Meeting by entering the Annual Meeting using the 16-digit control number. Instructions on how to vote while participating in the Annual Meeting live via the Internet are posted at www.virtualshareholdermeeting.com/ATRA2020.

Atara encourages stockholders to vote and submit their proxy in advance of the Annual Meeting by one of the methods described in the proxy materials for the Annual Meeting.

The proxy materials, including the proxy card and Notice of Internet Availability of Proxy Materials, previously distributed along with the Notice and Proxy Statement, will not be updated to reflect the change in location and may continue to be used to vote shares in connection with the Annual Meeting.

Attending the Annual Meeting as a Guest

Guests may enter the Annual Meeting in “listen-only” mode by entering the Annual Meeting at www.virtualshareholdermeeting.com/ATRA2020 and entering the information requested in the “Guest Login” section. Guests will not have the ability to vote or ask questions during the Annual Meeting.

List of Stockholders

A list of the stockholders of record will be available at the 2020 Annual Meeting. Due to COVID-19 and related government restrictions and business impact, our corporate offices may be subject to limited business hours and temporary closures. For ten calendar days prior to the Annual Meeting, you may email Atara at ehyllengren@atarabio.com to coordinate arrangements to view a list of our stockholders of record. The stockholder list will also be available during the Annual Meeting at www.virtualshareholdermeeting.com/ATRA2020. Instructions on how stockholders of record can view the stockholder list during the Annual Meeting are available on the meeting website.

About Atara Biotherapeutics, Inc.
Atara Biotherapeutics, Inc. (@Atarabio) is a pioneer in T-cell immunotherapy leveraging its novel allogeneic EBV T-cell platform to develop transformative therapies for patients with severe diseases including solid tumors, hematologic cancers and autoimmune disease. With our lead program in Phase 3 clinical development, Atara is the most advanced allogeneic T-cell immunotherapy company and intends to rapidly deliver off-the-shelf treatments to patients with high unmet medical need. Our platform leverages the unique biology of EBV T cells and has the capability to treat a wide range of EBV-associated diseases, or other severe diseases through incorporation of engineered CARs (chimeric antigen receptors) or TCRs (T-cell receptors). Atara is applying this one platform to create a robust pipeline including: tab-cel® (tabelecleucel) in Phase 3 development for Epstein-Barr virus-driven post-transplant lymphoproliferative disease (EBV+ PTLD); ATA188, a T-cell immunotherapy targeting EBV antigens as a potential treatment for multiple sclerosis; and multiple next-generation chimeric antigen receptor T-cell (CAR T) immunotherapies for both solid tumors and hematologic malignancies. Improving patients’ lives is our mission and we will never stop working to bring transformative therapies to those in need. Atara is headquartered in South San Francisco and our leading-edge research, development and manufacturing facility is based in Thousand Oaks, California. For additional information about the company, please visit atarabio.com and follow us on Twitter and LinkedIn.

Media
Kerry Beth Daly
Head, Corporate Communications
Atara Biotherapeutics
516-982-9328
kdaly@atarabio.com

Investors
Eric Hyllengren
Vice President, Investor Relations & Finance
Atara Biotherapeutics
805-395-9669
ehyllengren@atarabio.com

Source: Atara Biotherapeutics, Inc.

Released June 5, 2020