atra-def14a_20210608.htm

DEF 14A 1 atra-def14a_20210608.htm DEF 14A atra-def14a_20210608.htm

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a)

of the Securities Exchange Act of 1934

(Amendment No.__)

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☐		Soliciting Material Pursuant to § 240.14a-12

Atara Biotherapeutics, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement if Other Than the Registrant)

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ATARA BIOTHERAPEUTICS, INC.

611 Gateway Blvd., Suite 900

South San Francisco, CA 94080

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To Be Held On June 8, 2021

Dear Stockholder:

You are cordially invited to attend the Annual Meeting of Stockholders of Atara Biotherapeutics, Inc., a Delaware corporation. The meeting will be held on June 8, 2021 at 9:00 a.m. local time at our office located at 2430 Conejo Spectrum Street, Thousand Oaks, CA 91320 for the following purposes:

1.	To elect our three nominees for director named in the accompanying Proxy Statement to hold office until the 2024 Annual Meeting of Stockholders;

2.	To approve, on an advisory basis, the compensation of the Company’s named executive officers, as disclosed in the Proxy Statement accompanying this notice;

3.	To ratify the selection by the Audit Committee of our Board of Directors of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2021; and

4.	To conduct any other business properly brought before the meeting.

These items of business are more fully described in the Proxy Statement accompanying this Notice. The record date for the Annual Meeting is April 15, 2021. Only stockholders of record at the close of business on that date may vote at the meeting or any adjournment thereof.

We continue to monitor developments regarding the coronavirus (COVID-19) pandemic. In the interest of the health and well-being of our stockholders, we are planning for the possibility that the Annual Meeting may be held solely by means of remote communication. If we make this change, we will announce the decision to do so in advance and provide details on how to participate at investors.atarabio.com.

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting of Stockholders to Be Held on June 8, 2021 at 9:00 a.m. local time at 2430 Conejo Spectrum Street, Thousand Oaks, CA 91320. The Proxy Statement and Atara’s Annual Report on Form 10-K for the fiscal year 2020 are available electronically at www.proxyvote.com.

By Order of the Board of Directors

/s/ Pascal Touchon

Pascal Touchon, D.V.M.

President and Chief Executive Officer

South San Francisco, California

April 22, 2021

You are cordially invited to attend the meeting in person. Whether or not you expect to attend the meeting, please complete, date, sign and return the proxy card mailed to you, or vote over the telephone or the internet as instructed in these materials, as promptly as possible in order to ensure your representation at the meeting. Even if you have voted by proxy, you may still vote in person if you attend the meeting. Please note, however, that if your shares are held of record by a broker, bank or other nominee and you wish to vote at the meeting, you must obtain a proxy issued in your name from that record holder.

TABLE OF CONTENTS

		Page
Questions and Answers About These Proxy Materials and Voting		1
Proposal 1: Election of Directors		6
Nominees for Election for a Three-Year Term Expiring at the 2024 Annual Meeting		6
Information Regarding the Board of Directors and Corporate Governance		9
Proposal 2: Advisory Vote on Executive Compensation		18
Proposal 3: Ratification of the Selection of Independent Registered Public Accounting Firm		19
Security Ownership of Certain Beneficial Owners and Management		20
Executive Officers		23
Executive Compensation		25
Transactions with Related Persons and Indemnification		53
Householding of Proxy Materials		54
Other Matters		54

ATARA BIOTHERAPEUTICS, INC.

611 Gateway Blvd., Suite 900, South San Francisco, CA 94080

PROXY STATEMENT

FOR THE 2021 ANNUAL MEETING OF STOCKHOLDERS

QUESTIONS AND ANSWERS ABOUT THESE PROXY MATERIALS AND VOTING

Why did I receive a notice regarding the availability of proxy materials on the internet?

Pursuant to rules adopted by the Securities and Exchange Commission (the “SEC”), we have elected to provide access to our proxy materials over the internet. Accordingly, we have sent you a Notice of Internet Availability of Proxy Materials (the “Notice”) because our Board of Directors (the “Board”) is soliciting your proxy to vote at the 2021 Annual Meeting of Stockholders (the “Annual Meeting”), including any votes related to adjournments or postponements of the meeting. All stockholders will have the ability to access the proxy materials on the website referred to in the Notice or request to receive a printed set of the proxy materials. Instructions on how to access the proxy materials over the internet or to request a printed copy may be found in the Notice. In this Proxy Statement, “we”, “us”, “our”, “Company” and “Atara” refer to Atara Biotherapeutics, Inc.

We intend to mail the Notice on or about April 23, 2021 to all stockholders of record entitled to vote at the Annual Meeting.

How do I attend the Annual Meeting?

The meeting will be held on June 8, 2021 at 9:00 a.m. local time at our offices at 2430 Conejo Spectrum Street, Thousand Oaks, CA 91320. Information on how to vote in person at the annual meeting is discussed below. We continue to monitor developments regarding the COVID-19 pandemic. In the interest of the health and well-being of our stockholders, we are planning for the possibility that the Annual Meeting may be held solely by means of remote communication. If we make this change, we will announce the decision to do so in advance and provide details on how to participate at investors.atarabio.com.

Who can vote at the Annual Meeting?

Only stockholders of record at the close of business on April 15, 2021 will be entitled to vote at the Annual Meeting. On this record date, there were 84,076,737 shares of common stock outstanding and entitled to vote.

Stockholder of Record: Shares Registered in Your Name

If on April 15, 2021 your shares were registered directly in your name with our transfer agent, Computershare Trust Company, N.A. (“Computershare”), then you are a stockholder of record for purposes of the Annual Meeting. As a stockholder of record, you may vote in person at the Annual Meeting or vote by proxy. Whether or not you plan to attend the Annual Meeting, we urge you to fill out and return a proxy card or vote by proxy, over the telephone or on the internet as instructed below to ensure your vote is counted.

Beneficial Owner: Shares Registered in the Name of a Broker, Bank or Other Organization

If on April 15, 2021 your shares were held, not in your name, but rather in an account at a brokerage firm, bank or other similar organization, then you are the beneficial owner of shares held in “street name” and the Notice is being forwarded to you by that organization. The organization holding your account is considered to be the stockholder of record for purposes of voting at the Annual Meeting. As a beneficial owner, you have the right to direct the organization holding your account regarding how to vote the shares in your account. You are also invited to attend the Annual Meeting. However, because you are not the stockholder of record, you may not vote your shares in person at the Annual Meeting unless you request and obtain a valid proxy from this organization.

What am I voting on?

There are three matters scheduled for a vote:

•

Election of three directors named in this Proxy Statement to hold office until the 2024 Annual Meeting of Stockholders;

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Advisory approval of the compensation of the Company’s named executive officers, as disclosed in this Proxy Statement in accordance with SEC rules; and

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Ratification of selection by the Audit Committee of our Board of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2021.

What if another matter is properly brought before the Annual Meeting?

We currently know of no other matters that will be presented for consideration at the Annual Meeting. If any other matters are properly brought before the Annual Meeting, it is the intention of the proxyholders named in the accompanying proxy to vote on those matters in accordance with their best judgment.

How do I vote?

You may either vote “For” all the nominees to the Board or you may “Withhold” your vote for any nominee you specify. For each of the other matters to be voted on, you may either vote “For” or “Against” or abstain from voting.

The procedures for voting are as follows:

Stockholder of Record: Shares Registered in Your Name

If you are a stockholder of record, you may vote in person at the Annual Meeting, vote by proxy over the telephone, vote by proxy through the internet or vote by proxy using a proxy card that you may request or that we may elect to deliver at a later time. Whether or not you plan to attend the Annual Meeting, we urge you to vote by proxy to ensure your vote is counted. You may still attend the Annual Meeting and vote in person even if you have already submitted a proxy.

•

To vote in person, attend the Annual Meeting, at which we will give you a ballot upon request.

•

To vote over the telephone, dial toll-free 1-800-690-6903 using a touch-tone phone and follow the recorded instructions. You will be asked to provide the Company number and control number from the Notice. Your telephone vote must be received by 11:59 p.m. Eastern time on June 7, 2021 to be counted.

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To vote through the internet, go to www.proxyvote.com to complete an electronic proxy card. You will be asked to provide the Company number and control number from the Notice. Your internet vote must be received by 11:59 p.m. Eastern time on June 7, 2021 to be counted.

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To vote by mail using the proxy card, simply complete, sign and date the proxy card that may be delivered and return it promptly in the envelope provided. If you return your signed proxy card before the Annual Meeting, your proxyholder (one of the individuals named on your proxy card) will vote your shares as you direct.

Beneficial Owner: Shares Registered in the Name of Broker or Bank

If you are a beneficial owner of shares registered in the name of your broker, bank or other similar organization, you should receive a Notice containing voting instructions from that organization rather than from Atara. Simply follow the voting instructions in the Notice to ensure that your vote is counted. To vote in person at the Annual Meeting, you must obtain a valid proxy from your broker, bank or other similar organization. Follow the instructions from your broker, bank or other similar organization included with the proxy materials, or contact your broker, bank or other similar organization to request a proxy form.

How many votes do I have?

On each matter to be voted upon, you have one vote for each share of common stock you owned as of April 15, 2021.

What happens if I do not vote?

Stockholder of Record: Shares Registered in Your Name

If you are a stockholder of record and do not vote by completing your proxy card, by telephone, through the internet or in person at the Annual Meeting, your shares will not be voted.

Beneficial Owner: Shares Registered in the Name of Broker or Bank

If you are a beneficial owner and do not instruct your broker, bank, or other similar organization how to vote your shares, the question of whether your nominee will still be able to vote your shares depends on whether the particular proposal is deemed to be a “routine” matter under the rules of various securities exchanges. Brokers and nominees can use their discretion to vote “uninstructed” shares with respect to matters that are considered to be “routine,” but not with respect to “non-routine” matters. Under the applicable rules, “non-routine” matters are matters that may substantially affect the rights or privileges of stockholders, such as mergers, stockholder proposals, elections of directors (even if not contested), executive compensation (including any advisory stockholder votes on executive compensation and on the frequency of stockholder votes on executive compensation), and certain corporate governance proposals, even if supported by management. Accordingly, your nominee may not vote your shares on Proposals 1 and 2 without your instructions, but may vote your shares on Proposal 3, even in the absence of your instruction.

What if I return a proxy card or otherwise vote but do not make specific choices?

If you return a signed and dated proxy card or otherwise vote without marking voting selections, your shares will be voted, as applicable, “For” the election of each of the nominees for director; “For” the advisory approval of named executive officer compensation; and “For” ratification of selection by the Audit Committee of our Board of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2021. If any other matter is properly presented at the Annual Meeting, your proxyholder will vote your shares using their best judgment.

Who is paying for this proxy solicitation?

We will pay for the entire cost of soliciting proxies. Directors and employees will not be paid any additional compensation for soliciting proxies. We may also reimburse brokerage firms, banks and other similar organizations for the cost of forwarding proxy materials to beneficial owners.

What does it mean if I receive more than one Notice?

If you receive more than one Notice, your shares may be registered in more than one name or in different accounts. Please follow the voting instructions on each of the Notices you receive to ensure that all of your shares are voted.

Can I change my vote after submitting my proxy?

Stockholder of Record: Shares Registered in Your Name

Yes. You can revoke your proxy at any time before the final vote at the Annual Meeting. If you are the record holder of your shares, you may revoke your proxy in any one of the following ways:

•

you may submit another properly completed proxy card with a later date;

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you may grant a subsequent proxy by telephone or through the internet;

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you may send a timely written notice that you are revoking your proxy to our Secretary at 611 Gateway Blvd., Suite 900, South San Francisco, CA 94080 (such notice will be considered timely if it is received at the indicated address by close of business on the business day immediately preceding the date of the Annual Meeting); or

•

you may attend the Annual Meeting and vote in person.

Simply attending the Annual Meeting will not, by itself, revoke your proxy. Your most current proxy card or telephone or internet proxy is the one that is counted.

Beneficial Owner: Shares Registered in the Name of Broker or Bank

If your shares are held by your broker, bank or other similar organization as a nominee or agent, you should follow the instructions provided by your broker, bank or other similar organization.

When are stockholder proposals due for next year’s annual meeting?

To be considered for inclusion in next year’s proxy materials, your proposal must be submitted in writing by December 27, 2021 to our Secretary at 611 Gateway Blvd., Suite 900, South San Francisco, CA 94080, and must comply with all applicable requirements of Rule 14a-8 promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”); provided, however, that if our 2022 Annual Meeting of Stockholders is held before May 9, 2022 or after July 8, 2022, then the deadline is a reasonable amount of time prior to the date we print and mail the Notice for the 2022 Annual Meeting of Stockholders. If you wish to submit a proposal (including a director nomination) that is not to be included in next year’s proxy materials, the proposal must be received by our Secretary not later than the close of business on March 10, 2022 nor earlier than the close of business on February 8, 2022; provided, however, that if our 2022 Annual Meeting of Stockholders is held before May 9, 2022 or after July 8, 2022, then the proposal must be received no earlier than the close of business on the 120th day prior to such meeting and not later than the close of business on the later of the 90th day prior to such meeting or the 10th day following the day on which public announcement of the date of such meeting is first made. You are also advised to review our bylaws, which contain additional requirements about advance notice of stockholder proposals and director nominations.

What are “broker non-votes”?

As discussed above, when a beneficial owner of shares held in “street name” does not give instructions to the broker, bank or other similar organization holding the shares as nominee as to how to vote on matters deemed to be “non-routine,” the nominee cannot vote the shares. These unvoted shares are counted as “broker non-votes.”

How many votes are needed to approve each proposal?

The following table summarizes the minimum vote needed to approve each proposal and the effect of abstentions and broker non-votes.


Proposal Number	Proposal Description	Vote Required for Approval	Effect of Abstentions	Effect of Broker Non-Votes
1	Election of directors	Nominees receiving the most “For” votes	None	None
2	Advisory approval of the compensation of the Company’s named executive officers	“For” votes from the holders of a majority of shares present in person, present by remote communication, if applicable, or represented by proxy and entitled to vote on the matter	Against	None
3	Ratification of the selection of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2021	“For” votes from the holders of a majority of shares present in person, present by remote communication, if applicable, or represented by proxy and entitled to vote on the matter	Against	Not Applicable⁽¹⁾

(1)

This proposal is considered to be a “routine” matter under applicable rules. Accordingly, if you hold your shares in street name and do not provide voting instructions to your broker, bank or other agent that holds your shares, your broker, bank or other agent has discretionary authority under applicable New York Stock Exchange rules to vote your shares on this proposal.

What is the quorum requirement?

A quorum of stockholders is necessary to hold a valid Annual Meeting. A quorum will be present if stockholders holding at least a majority of the outstanding shares entitled to vote are present at the Annual Meeting in person, present by remote communication, if applicable, or represented by proxy. On the record date, there were 84,076,737 shares outstanding and entitled to vote. Thus, the holders of 42,038,369 shares must be present in person, present by remote communication, if applicable, or represented by proxy at the Annual Meeting to have a quorum.

Your shares will be counted towards the quorum only if you submit a valid proxy (or one is submitted on your behalf by your nominee) or if you vote in person at the Annual Meeting. Abstentions and broker non-votes will be counted towards the quorum requirement. If there is no quorum, the holders of a majority of shares present at the Annual Meeting in person or represented by proxy may adjourn the Annual Meeting to another date.

How can I find out the results of the voting at the Annual Meeting?

Preliminary voting results will be announced at the Annual Meeting. In addition, final voting results will be published in a current report on Form 8-K that we expect to file within four business days after the Annual Meeting. If final voting results are not available to us in time to file a Form 8-K within four business days after the Annual Meeting, we intend to file a Form 8-K to publish preliminary results and, within four business days after the final results are known to us, file an additional Form 8-K to publish the final results.

PROPOSAL 1

ELECTION OF DIRECTORS

The Board is divided into three classes. Each class has a three-year term. Vacancies on the Board may be filled only by persons elected by a majority of the remaining directors. A director elected by the Board to fill a vacancy in a class, including vacancies created by an increase in the number of directors, shall serve for the remainder of the full term of that class and until the director’s successor is duly elected and qualified.

The Board presently has nine members. There are three directors in the class whose term of office expires in 2021. Each of the nominees listed below is currently a member of our Board who has been recommended for reelection by the Nominating and Corporate Governance Committee and nominated for reelection by the Board. If elected at the Annual Meeting, each of these nominees would serve until the 2024 annual meeting and until his or her successor has been duly elected and qualified, or, if sooner, until the director’s death, resignation or removal. It is our policy to invite and encourage directors and nominees for director to attend the Annual Meeting. All of our directors attended our 2020 virtual-only Annual Meeting of Stockholders.

Directors are elected by a plurality of the votes of the holders of shares present in person, present by remote communication, if applicable, or represented by proxy and entitled to vote on the election of directors. This means that the three nominees receiving the highest number of affirmative votes, even if less than a majority of the shares outstanding on the record date, will be elected. Shares represented by executed proxies will be voted, if authority to do so is not withheld, for the election of the three nominees named below. If any nominee becomes unavailable for election as a result of an unexpected occurrence, shares that would have been voted for that nominee will instead be voted for the election of a substitute nominee proposed by the Board. Each person nominated for election has agreed to serve if elected. We have no reason to believe that any nominee will be unable to serve.

The following is a brief biography of each nominee and each director whose term will continue after the Annual Meeting.

Nominees for Election for a Three-year Term Expiring at the 2024 Annual Meeting

Eric L. Dobmeier, 52, has served as a member of the Board since March 2015. Mr. Dobmeier has served as President and Chief Executive Officer, and as a member of the board of directors, of Chinook Therapeutics, Inc., a biotechnology company, since April 2019. From January 2018 to June 2018, Mr. Dobmeier was President and Chief Executive Officer of Silverback Therapeutics, Inc., a biotechnology company. Prior to that, he was at Seattle Genetics, Inc., a biotechnology company, from 2002 to 2017, where he held positions of increasing responsibility, most recently as Chief Operating Officer from June 2011 to December 2017. Prior to joining Seattle Genetics, Mr. Dobmeier was an attorney with the law firms of Venture Law Group and Heller Ehrman LLP, where he represented technology companies in connection with public and private financings, mergers and acquisitions and corporate partnering transactions. Mr. Dobmeier formerly served on the board of directors of Stemline Therapeutics, Inc. from 2012 to 2018, Versartis, Inc. from 2017 to 2018 and Adaptive Biotechnologies Corporation from 2016 to 2021. Mr. Dobmeier received a J.D. from the University of California, Berkeley School of Law and an A.B. in History from Princeton University. We believe that Mr. Dobmeier’s legal, business development and operating experience, years of senior management experience at a public biotechnology company and his service as a director of other biopharmaceutical companies provide him with the qualifications and skills to serve as a director of our Company.

William K. Heiden, 61, has served as a member of the Board since November 2015. Mr. Heiden served as the President and Chief Executive Officer, and as a member of the board of directors, of AMAG Pharmaceuticals, Inc., a pharmaceutical company, from May 2012 until April 2020. Prior to joining AMAG, Mr. Heiden served as President and Chief Executive Officer of GTC Biotherapeutics, Inc. (now part of LFB, S.A.), a biotherapeutics company, from June 2010 to May 2012. From September 2004 until December 2008, Mr. Heiden served as President and Chief Executive Officer of Elixir Pharmaceuticals, Inc., a biopharmaceutical company. Prior to joining Elixir Pharmaceuticals, Mr. Heiden served as President and Chief Operating Officer of Praecis Pharmaceuticals Incorporated (which was acquired by GlaxoSmithKline), from 2002 to 2004. From 1987 to 2002, Mr. Heiden progressed through various positions of increasing responsibility at Schering-Plough Corporation (which was acquired by Merck & Co.), including managing a number of businesses in the United States, Europe and Canada. Mr. Heiden holds an M.B.A. from Cornell University’s Johnson Graduate School of Management, a M.I.M. degree from the University of Louvain and a B.A. degree from the University of Florida. We believe that Mr. Heiden’s extensive experience as a pharmaceutical and biotechnology executive provide him with the qualifications and skills to serve as a director of our Company.

Beth Seidenberg, M.D., 64, has served as a member of the Board since our founding in August 2012. Dr. Seidenberg is the managing director of Westlake Village BioPartners, a venture capital firm that focused on life sciences that she founded in September 2018. Dr. Seidenberg is also a General Partner at Kleiner Perkins Caufield & Byers, a venture capital firm, where she has primarily focused on life sciences investing since May 2005. Dr. Seidenberg was previously the Senior Vice President,

Head of Global Development and Chief Medical Officer at Amgen, Inc., a biotechnology company. In addition, Dr. Seidenberg was a senior executive in research and development at Bristol Myers Squibb Company, a biopharmaceutical company, and Merck. Dr. Seidenberg received a B.S. from Barnard College and an M.D. from the University of Miami School of Medicine and completed her post-graduate training at The Johns Hopkins University, George Washington University and the National Institutes of Health. Dr. Seidenberg has served on the board of directors of Progyny, Inc., since 2010. Dr. Seidenberg formerly served on the board of directors of TESARO from 2011 to 2018, ARMO BioScience from 2012 to 2018, and Epizyme, Inc. from 2008 to 2019. We believe that Dr. Seidenberg’s extensive experience in the life sciences industry as a senior executive and venture capitalist, as well as her training as a physician, provide her with the qualifications and skills to serve as a director of our Company.

THE BOARD OF DIRECTORS RECOMMENDS

A VOTE IN FAVOR OF EACH NAMED NOMINEE.

Directors Continuing in Office Until the 2022 Annual Meeting

Roy Baynes, M.D., Ph.D., 66, has served as a member of the Board since September 2018. Dr. Baynes has served as Senior Vice President and Head of Global Clinical Development at Merck Research Laboratories, the research division of Merck and Co., Inc., since December 2013 and as Chief Medical Officer of Merck and Co, a global healthcare company, since July 2016. Prior to his roles at Merck, Dr. Baynes served as Senior Vice President of Oncology, Inflammation and Respiratory Therapeutics at Gilead Sciences, Inc., a biopharmaceutical company, from January 2012 to December 2013. Prior to Gilead, Dr. Baynes held positions of increasing responsibility at Amgen Inc., a biotechnology company, from August 2002 to January 2012, most recently as Vice President of Global Clinical Development and Therapeutic Area Head for Hematology/Oncology. Before joining Amgen, Dr. Baynes was the Charles Martin Professor of Cancer Research at the Barbara Ann Karmanos Cancer Institute, a National Cancer Institute-designated Comprehensive Cancer Center, at Wayne State University. Dr. Baynes serves on the board of directors of Natera, Inc. and Travere Therapeutics, Inc. Dr. Baynes has authored more than 150 publications and is a member or fellow of several international medical societies. Dr. Baynes received his medical degree and doctorate in philosophy from the University of the Witwatersrand in South Africa and completed his medical training in the Department of Hematology and Oncology at Johannesburg Hospital. We believe that Dr. Baynes is qualified to serve on our Board due to his extensive executive experience in the life sciences industry, his leadership and management experience, and his service as a director of other biopharmaceutical companies.

Matthew K. Fust, 56, has served as a member of the Board since March 2014. Mr. Fust is a board member and advisor to life sciences companies. Mr. Fust has served on the board of directors of Crinetics Pharmaceuticals, Inc. since February 2018, and Ultragenyx Pharmaceutical, Inc. since January 2014. Mr. Fust formerly served of the board of directors of Sunesis Pharmaceuticals, Inc. from 2005 to 2017, MacroGenics, Inc. from March 2014 through May 2020, and Dermira, Inc. from April 2014 through February 2020. Mr. Fust was previously Executive Vice President and Chief Financial Officer of Onyx Pharmaceuticals, Inc., a biopharmaceutical company, from January 2009 through its acquisition by Amgen in October 2013. Mr. Fust continued as an employee of Amgen until January 2014. From May 2003 to December 2008, Mr. Fust served as Chief Financial Officer at Jazz Pharmaceuticals, Inc., a specialty pharmaceutical company. From 2002 to 2003, Mr. Fust served as Chief Financial Officer at Perlegen Sciences, a biopharmaceutical company. Previously, he was Senior Vice President and Chief Financial Officer at ALZA Corporation, a pharmaceutical company, where he was an executive from 1996 until 2002. From 1991 until 1996, Mr. Fust was a manager in the healthcare strategy practice at Andersen Consulting. Mr. Fust received a B.A. from the University of Minnesota and an M.B.A. from the Stanford Graduate School of Business. We believe that Mr. Fust is qualified to serve on our Board due to his extensive experience as a chief financial officer in the life sciences industry, his leadership and management experience, and his service as a director of other biopharmaceutical companies.

Ronald C. Renaud, Jr., 52, has served as a member of the Board since April 2020. Mr. Renaud serves as chief executive officer of Translate Bio, Inc., where he also serves as a member of the board of directors, positions he has held since November 2014. Formerly, Mr. Renaud served as president and chief executive officer of Idenix Pharmaceuticals, Inc., a biopharmaceutical company, from 2010 until Idenix was acquired by Merck & Co., Inc. in August 2014. He was previously chief financial officer and chief business officer of Idenix from 2007 until his appointment as chief executive officer. Prior to joining Idenix, he served as senior vice president and chief financial officer of Keryx Biopharmaceuticals, Inc. Mr. Renaud served as a member of the boards of directors of Akebia Therapeutics, Inc. from September 2014 to December 2018, PTC Therapeutics from June 2014 to June 2017 and Chimerix, Inc. from December 2014 to June 2020. Since March 2018, he has served on the board of directors of Ikena Oncology, Inc., and currently serves as Chairman. Mr. Renaud received a B.A. from St. Anselm College and an M.B.A. from the Marshall School of Business at the University of Southern California. We believe that Mr. Renaud is qualified to serve on our Board because of his service on the boards of other private and public life sciences companies, his leadership and management experience and his extensive knowledge of our industry.

Directors Continuing in Office Until the 2023 Annual Meeting

Pascal Touchon, D.V.M., 58, has served as our President and Chief Executive Officer and a member of the Board since June 2019. Prior to joining the Company, Dr. Touchon has served in roles of increasing responsibility at Novartis Oncology, a business unit of Novartis International AG, a global pharmaceutical company, since August 2015, most recently as Global Head Cell & Gene Therapies Oncology and a member of the Oncology Executive Committee. Previously, Dr. Touchon was Global Head Strategy, Business Development & Licensing, Oncology and a member of the Oncology Executive Committee. Prior to joining Novartis, Dr. Touchon spent nearly 30 years in the pharmaceutical industry in various companies, countries and leadership roles, including with Servier SAS, a privately owned French pharmaceutical company, as Senior Executive Vice President, member of the company Executive Committee and Head of Business Development and Licensing. Dr. Touchon holds a Doctorate in Veterinary Medicine from Paul Sabatier University (Toulouse, France), a Diplôme d’Etudes Supérieures Spécialisées (DESS) in Management from Institut d’Administration des Entreprises (Toulouse, France) and an MBA from INSEAD (Fontainebleau, France). We believe that Dr. Touchon is qualified to serve on our Board due to his role as our President and Chief Executive Officer, his extensive experience in the pharmaceuticals industry and his leadership and management experience.

Carol Gallagher, Pharm.D., 56, has served as a member of the Board since January 2013. Since October 2014, Dr. Gallagher served as a partner with New Enterprise Associates, a venture capital firm, and she now serves as a venture partner, a part-time role. Prior to joining New Enterprise Associates, Dr. Gallagher served as a venture partner with Frazier Healthcare, a venture capital firm, from October 2013 to September 2014. Dr. Gallagher served as the President and Chief Executive Officer of Calistoga Pharmaceuticals, a biopharmaceutical company, from 2008 to 2011, when the company was acquired by Gilead Sciences. From 2007 to 2008, Dr. Gallagher was the President and Chief Executive Officer of Metastatix, Inc., a biopharmaceutical company. Prior to that time starting in 1989, she served in various roles at pharmaceutical companies Eli Lilly, Amgen, Agouron Pharmaceuticals, Pfizer, Biogen Idec Pharmaceuticals, CancerVax and Anadys Pharmaceuticals. In addition to our Board, Dr. Gallagher serves as a director at the following public companies: Millendo Therapeutics, Inc., a biotechnology company, where she has served as a member of the board of directors since 2012; Turning Point Therapeutics, Inc., a biotechnology company, where she has served since August 2019, and Frazier Life Sciences Acquisition Corp, a special purpose acquisition company, since October 2020. She previously served on the boards of directors at Anaptys Bio Inc. from 2011 until 2018 and Metacrine, Inc. from 2018 until April 2021. Dr. Gallagher attended Vanderbilt University and received B.S. and Doctor of Pharmacy degrees from the University of Kentucky. We believe that Dr. Gallagher is qualified to serve on our Board due to her extensive experience in the pharmaceuticals industry, her leadership and management experience, and her service as a director of other biopharmaceutical companies.

Maria Grazia Roncarolo, M.D., 66, has served as a member of the Board since May 2020. Dr. Roncarolo serves as the Professor of Pediatrics and Medicine at Stanford University, and Codirector of the Stanford Institute for Stem Cell Biology and Regenerative Medicine, positions she has held since June 2014. From 2007 to 2014 Dr. Roncarolo served as Professor of Pediatrics at the School of Medicine and Surgery, San Raffaele Vita-Salute University, in Milan. From 2008 to 2013, Dr. Roncarolo served as the Scientific Director of the San Raffaele Scientific Institute in Milan. From 2000 to 2007, she served as the Director of the San Raffaele Telethon Institute for Gene Therapy in Milan. Prior to joining San Raffaele, she was a scientific staff member of the DNAX Research Institute of Molecular and Cellular Biology. In 2005, Dr. Roncarolo was elected member of the Academia Europea of Sciences. In 2000, she was awarded the honor of Ufficiale dell’Ordine “Al Merito della Repubblica Italiana” for scientific merits. Leading up to that, Dr. Roncarolo actively collaborated in the development of research programs for industry and biotechnology companies, including service as Co-Chair of the Scientific Advisory Board of Glaxo Smith Kline for cell and gene therapy from 2016 to 2018, as Consultant for Novartis Pharmaceutical in the areas of immunology, transplantation and gene transfer from 1997 to 2002, as a founding member of the scientific advisory board for Kinetix Pharmaceutical from 1997 to 2000. Dr. Roncarolo has served on the board of directors of Cosmo Pharmaceuticals NV since April 2012. Dr. Roncarolo received her medical degree from the University of Torino. We believe that Dr. Roncarolo is qualified to serve on our Board due to her deep industry knowledge and experience leading research efforts in the field.

INFORMATION REGARDING THE BOARD OF DIRECTORS AND CORPORATE GOVERNANCE

Independence of the Board of Directors

Generally, under the listing requirements and rules of The Nasdaq Stock Market (“Nasdaq”), independent directors must comprise a majority of a listed company’s board of directors. The Board has undertaken a review of its composition, the composition of its committees and the independence of each director. The Board has determined that, other than Dr. Touchon, by virtue of his position as President and Chief Executive Officer, none of our directors has a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director and that each is “independent” as that term is defined under the listing requirements and rules of Nasdaq. Accordingly, a majority of the members of the Board is independent, as required under applicable Nasdaq rules. In making this determination, the Board considered the current and prior relationships that each non-employee director has with the Company and all other facts and circumstances the Board deemed relevant in determining their independence, including the beneficial ownership of our capital stock by each non-employee director.

Board Leadership Structure

Mr. Renaud, an independent director, currently serves as the chair of the Board. As chair of the Board, Mr. Renaud establishes the agenda for regular Board meetings, presides over Board meetings, presides over periodic meetings of the Board’s independent directors, serves as a liaison between our Chief Executive Officer and the independent directors and performs such additional duties as the Board may otherwise determine and delegate. Accordingly, the chair of the Board has substantial ability to shape the work of the Board. We believe that separation of the positions of the chair of the Board and Chief Executive Officer reinforces the independence of the Board in its oversight of the business and affairs of the Company. In addition, we believe that having an independent chair of the Board creates an environment that is more conducive to objective evaluation and oversight of management’s performance, increasing management accountability and improving the ability of the Board to monitor whether management’s actions are in the best interests of the Company and its stockholders. As a result, we believe having an independent chair of the Board can enhance the effectiveness of the Board as a whole.

Role of the Board in Risk Oversight

One of the Board’s key functions is informed oversight of our risk management process. The Board does not have a standing risk management committee, but rather administers this oversight function directly through the Board as a whole, as well as through various Board standing committees that address risks inherent in their respective areas of oversight. In particular, the Board is responsible for monitoring and assessing strategic risk exposure, including a determination of the nature and level of risk appropriate for the Company. The Audit Committee has the responsibility to consider and discuss our major financial and cybersecurity risk exposures and the steps management has taken to monitor and control these exposures, including guidelines and policies designed to mitigate risks identified. The Audit Committee also monitors compliance with legal and regulatory requirements, in addition to oversight of the performance of our internal audit function. The Nominating and Corporate Governance Committee monitors the effectiveness of our corporate governance guidelines, including whether they are successful in preventing illegal or improper liability-creating conduct. The Compensation Committee assesses and monitors whether any of our compensation policies and programs has the potential to encourage excessive risk-taking. The Audit Committee meets with management at least annually to review corporate risk management and plans to mitigate risks, including insurance coverage. It is the responsibility of the committee chairs to report findings regarding material risk exposures to the Board as quickly as possible. The Board has delegated to the chair of the Board the responsibility of coordinating between the Board and management with regard to the determination and implementation of responses to any problematic risk management issues.

Meetings of the Board of Directors

The Board met seven times during 2020. Each Board member attended 75% or more of the aggregate number of meetings of the Board and of the committees on which they served held during the portion of the last fiscal year for which they were a director or committee member. In addition, in 2020, our non-employee directors met four times in regularly scheduled executive sessions at which only non-employee directors were present. Mr. Renaud served as chair for Board meetings and presided over the executive sessions while he was a member of the Board. Prior to Mr. Renaud joining the Board, Dr. Gallagher served as our lead independent director and presided over the executive sessions.

Information Regarding Committees of the Board of Directors

The Board has four standing committees: an Audit Committee, a Compensation Committee, a Nominating and Corporate Governance Committee, and a Research and Development Committee. The following table provides membership and meeting information for each of the Board committees in 2020:

Name	Audit	Compensation	Nominating and Corporate Governance	Research and Development
Pascal Touchon, D.V.M.				X*
Roy Baynes, M.D., Ph.D.		X		X
Eric L. Dobmeier	X	X*
Matthew K. Fust	X*		X
Carol Gallagher, Pharm.D.		X	X
William K. Heiden	X
Beth Seidenberg, M.D.			X*	X
Ronald C. Renaud Jr. (1)
Maria Grazia Roncarolo, M.D. (2)				X
Total meetings in 2020	5	5	1	2

*	Committee Chair.

(1)	In April 2020, Mr. Renaud joined the Board as chair of the Board.

(2)	In May 2020, Dr. Roncarolo joined the Board.

Audit Committee

The Board has determined that each member of the Audit Committee is independent under Nasdaq listing standards and Rule 10A-3(b)(1) promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The Board has also determined that Mr. Fust is an “audit committee financial expert” within the meaning of SEC regulations. Each member of the Audit Committee has the requisite financial expertise required under the applicable requirements of Nasdaq. In arriving at this determination, the Board examined each Audit Committee member’s scope of experience and the nature of their employment in the corporate finance sector. The primary functions of this committee include:

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reviewing and pre-approving the engagement of our independent registered public accounting firm to perform audit services and any permissible non-audit services;

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evaluating the performance of our independent registered public accounting firm and deciding whether to retain its services;

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monitoring the rotation of partners on the engagement team of our independent registered public accounting firm;

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reviewing our annual and quarterly financial statements and reports and discussing the statements and reports with our independent registered public accounting firm and management, including a review of disclosures under “Management’s Discussion and Analysis of Financial Condition and Results of Operations”;

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considering and approving or disapproving of all related party transactions;

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reviewing, with our independent registered public accounting firm and management, significant issues that may arise regarding accounting principles and financial statement presentation, as well as matters concerning the scope, adequacy and effectiveness of our financial controls;

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assessing our financial risks and management of those risks;

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establishing procedures for the receipt, retention and treatment of complaints received by us regarding financial controls, accounting or auditing matters; and

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reviewing and evaluating, at least annually, the performance of the Audit Committee and the adequacy of its charter.

The Audit Committee has authority to engage legal counsel or other experts or consultants, as it deems appropriate to carry out its responsibilities. The Board has adopted a written Audit Committee charter that is available to stockholders on our website at http://investors.atarabio.com/corporate-governance.

Report of the Audit Committee of the Board of Directors¹

The Audit Committee has reviewed and discussed the audited financial statements for the fiscal year ended December 31, 2020 with our management. The Audit Committee has discussed with the independent registered public accounting firm the matters required to be discussed by the applicable requirements of the Public Company Accounting Oversight Board (“PCAOB”) and the SEC. The Audit Committee has also received the written disclosures and the letter from the independent registered public accounting firm required by applicable requirements of the PCAOB regarding the independent accountants’ communications with the Audit Committee concerning independence and has discussed with the independent registered public accounting firm the accounting firm’s independence. Based on the foregoing, the Audit Committee has recommended to the Board that the audited financial statements be included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

Matthew K. Fust

Eric L. Dobmeier

William Heiden

Compensation Committee

The Board has determined that each member of the Compensation Committee is independent under Nasdaq listing standards and Rule 10c-1 promulgated under the Exchange Act, and a “non-employee director” as defined in Rule 16b-3 promulgated under the Exchange Act. The primary functions of this committee include:

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determining the compensation and other terms of employment of our Chief Executive Officer and other executive officers and reviewing and approving corporate performance goals and objectives relevant to such compensation;

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determining the compensation of our non-employee directors;

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evaluating, adopting and administering the equity incentive plans, compensation plans and similar programs advisable for Atara, as well as reviewing and recommending to the Board the adoption, modification or termination of our plans and programs;

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establishing policies with respect to equity compensation arrangements;

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reviewing with management any required disclosures under the caption “Compensation Discussion and Analysis” and recommending to the Board its inclusion in our periodic reports to be filed with the SEC;

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periodically review with the Chief Executive Officer the plans for succession for the Company’s executive officers; and

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reviewing and evaluating, at least annually, the performance of the Compensation Committee and the adequacy of its charter.

The material in this report is not “soliciting material,” is being furnished and shall not be deemed “filed” with the Commission and is not to be incorporated by reference in any filing of Atara under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.

The Compensation Committee has authority to engage legal counsel or other experts or consultants, as it deems appropriate to carry out its responsibilities. The Board has adopted a written Compensation Committee charter that is available to stockholders on our website at http://investors.atarabio.com/corporate-governance.

Compensation Committee Processes and Procedures

The Compensation Committee met five times during 2020. The agenda for each meeting is usually developed by our Chief Executive Officer, Chief People Officer and General Counsel in consultation with the Chair of the Compensation Committee and our outside compensation consultants, if applicable. The Compensation Committee meets regularly in executive session. However, from time to time, various members of management and other employees as well as outside advisors or consultants may be invited by the Compensation Committee to make presentations, to provide financial or other background information or advice or to otherwise participate in Compensation Committee meetings. The Chief Executive Officer does not and will not participate in, or be present during, any deliberations or determinations of the Compensation Committee regarding his compensation. The charter of the Compensation Committee grants the Compensation Committee full access to all of our books, records, facilities and personnel. In addition, under the charter, the Compensation Committee has authority to engage legal counsel or other experts or consultants, as it deems appropriate to carry out its responsibilities. The Compensation Committee has the authority to retain compensation consultants to assist in its evaluation of executive and director compensation, including the authority to approve the consultant’s reasonable fees and other retention terms. Under the charter, the Compensation Committee may select, or receive advice from, a compensation consultant, legal counsel or other advisor to the Compensation Committee (other than in-house legal counsel and certain other types of advisors), only after assessing their independence in accordance with, and to the extent required by, applicable law and the listing requirements of Nasdaq; however, there is no requirement that any advisor be independent.

During 2020, the Compensation Committee engaged the Radford advisory team of the Rewards Solution practice at Aon (“Radford”) as independent compensation consultant. After considering all of the factors required by applicable Nasdaq rules, the Compensation Committee was satisfied with Radford’s independence and requested that Radford evaluate and help us refine our employee and non-employee director compensation strategies and practices. As part of its engagement, Radford was requested by the Compensation Committee to develop a comparative group of companies and to perform analyses of competitive performance and compensation levels for that group. With respect to the compensation of the Chief Executive Officer, Radford developed recommendations that were presented to the Compensation Committee for its consideration. Following an active dialogue with Radford, the Compensation Committee considered the recommendations in addition to corporate performance and approved the recommendations subject to certain modifications deemed appropriate by the Compensation Committee. With respect to the executive officers, the Chief Executive Officer in consultation with Radford developed recommendations that were presented to the Compensation Committee for its consideration. Following an active dialogue with the Chief Executive Officer and with Radford, the Compensation Committee considered the recommendations in addition to corporate and individual performance and approved the recommendations subject to certain modifications deemed appropriate by the Compensation Committee.

Historically, the Compensation Committee has made most of the significant adjustments to annual compensation and determined bonus and equity awards at one or more meetings held during the first quarter of the year. The Compensation Committee also considers matters related to individual compensation, such as compensation for new executive hires, as well as high-level strategic issues, such as the efficacy of our compensation strategy, potential modifications to that strategy, risks created by that strategy and new trends, retention concerns and plans or approaches to compensation, at various meetings throughout the year. For executives other than the Chief Executive Officer, the Compensation Committee solicits and considers evaluations and recommendations submitted to the Committee by the Chief Executive Officer. In the case of the Chief Executive Officer, the evaluation of his performance is conducted by the Compensation Committee with feedback from the Board as well as the executives, which determines any adjustments to Chief Executive Officer’s compensation as well as awards to be granted. For all executives and directors as part of its deliberations, the Compensation Committee may review and consider, as appropriate, materials that it deems relevant. These materials may include financial reports and projections, operational data, tax and accounting information, tally sheets that set forth the total compensation that may become payable to executives in various hypothetical scenarios, executive and director stock ownership information, company stock performance data, analyses of historical executive compensation levels and current compensation levels across our Company and recommendations of the Compensation Committee’s compensation consultant, including analyses of executive and director compensation paid at the comparative group of companies (with such group of companies developed by Radford and agreed upon by the Compensation Committee).

Compensation Committee Interlocks and Insider Participation

None of the members of the Compensation Committee is currently or has been at any time one of our officers or employees. None of our executive officers currently serves, or has served during the last year, as a member of the board of directors or compensation committee of any entity that has one or more executive officers serving as a member of the Board or the Compensation Committee.

Report of the Compensation Committee of the Board of Directors²

The Compensation Committee, consisting solely of independent directors, has reviewed and discussed with management the Compensation Discussion and Analysis (“CD&A”) contained in this Proxy Statement. Based on this review and discussion, the Compensation Committee has recommended to the Board that the CD&A be included in this Proxy Statement and incorporated into the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

Eric L. Dobmeier

Roy Baynes

Carol S. Gallagher

Nominating and Corporate Governance Committee

The Board has determined that each member of the Nominating and Corporate Governance Committee is independent under the Nasdaq listing standards. The primary functions of this committee include:

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periodically reviewing and evaluating director performance on the Board and its committees, and recommending to the Board and management areas for improvement;

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interviewing, evaluating, nominating and recommending individuals for membership on the Board and its committees;

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reviewing and recommending to the Board any amendments to our corporate governance policies; and

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reviewing and assessing, at least annually, the performance of the Nominating and Corporate Governance Committee and the adequacy of its charter.

The Nominating and Corporate Governance Committee has authority to engage advisors or consultants (including legal counsel and search firms), as it deems appropriate to carry out its responsibilities. The Board has adopted a written Nominating and Corporate Governance Committee charter that is available to stockholders on our website at http://investors.atarabio.com/corporate-governance.

The Nominating and Corporate Governance Committee believes that candidates for director should have certain minimum qualifications, including the ability to read and understand basic financial statements, being over 21 years of age and having the highest personal integrity and ethics. In evaluating director nominee candidates, the Nominating and Corporate Governance Committee typically also considers factors such as: possessing relevant expertise upon which to be able to offer advice and guidance to management, having sufficient time to devote to our affairs, demonstrated excellence in their field, having the ability to exercise sound business judgment and having the commitment to rigorously represent the long-term interests of our stockholders and other factors is deems appropriate given then-current needs of the Board and Atara, to maintain a balance of knowledge, experience and capability. However, the Nominating and Corporate Governance Committee retains the right to modify the above qualifications from time to time.

The Board believes that diversity of viewpoints, background, experience and other characteristics, such as race, gender, ethnicity, sexual orientation, culture and nationality, are an important part of its makeup, and the Nominating and Corporate Governance Committee and the Board actively seek these characteristics in identifying director candidates.

Candidates for director nominees are reviewed in the context of the current composition of the Board, our operating requirements, Nasdaq listing standards, applicable law and regulations and the long-term interests of stockholders. The Nominating and Corporate Governance Committee also determines whether a nominee is independent for Nasdaq purposes based upon Nasdaq listing standards, SEC rules and regulations and the advice of counsel, if necessary. The Nominating and Corporate Governance Committee conducts any appropriate and necessary inquiries into the backgrounds and qualifications of potential director candidates. The Nominating and Corporate Governance Committee meets to discuss and consider the candidates’ qualifications and ultimately recommend director nominees to the Board.

In the case of incumbent directors whose terms of office are set to expire, the Nominating and Corporate Governance Committee reviews these directors’ overall service to Atara during their terms, including the number of meetings attended, level of participation, quality of performance and any other relationships and transactions that might impair the directors’ independence.

The Nominating and Corporate Governance Committee will consider director candidates recommended by stockholders. The Nominating and Corporate Governance Committee does not intend to alter the manner in which it evaluates candidates, including the minimum criteria set forth above, based on whether or not the candidate was recommended by a stockholder. Stockholders who wish to recommend individuals for consideration by the Nominating and Corporate Governance Committee to become nominees for election to the Board may do so by delivering a written recommendation to the Nominating and Corporate Governance Committee at the following address: 611 Gateway Blvd., Suite 900, South San Francisco, CA 94080 not less than six months prior to any meeting at which directors are to be elected. Submissions must include the full name of the proposed nominee, a description of the proposed nominee’s business experience for at least the previous five years, complete biographical information, a description of the proposed nominee’s qualifications as a director and a representation that the nominating stockholder is a beneficial or record holder of our common stock and has been a holder for at least one year. Any such submission must be accompanied by the written consent of the proposed nominee to be named as a nominee and to serve as a director if elected.

Research and Development Committee

The Research and Development Committee provides advice and support to the Company in relation to the Company’s research and development activities and strategy. The primary function of this committee is to confer with the Chief Executive Officer and the Company’s research and development leadership team regarding:

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the Company’s research and development activities and strategy;

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significant emerging regulatory, research, scientific, and medical trends and developments relevant to the Company’s research and development activities and strategy, including their potential impact on the Company’s programs or plans;

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infrastructure and resources made available by the Company for its research and development activities and clinical trial programs; and

•

research and development, scientific, medical and intellectual property aspects of any proposed material transactions such as significant investments, acquisitions and licenses.

The Board has adopted a written Research and Development Committee charter that is available to stockholders on our website at http://investors.atarabio.com/corporate-governance.

Stockholder Communications with the Board

The Board has adopted a formal process by which stockholders may communicate with the Board or any of its directors. This information is available on our website at http://investors.atarabio.com/corporate-governance. Any interested person may also communicate directly with the chair of the Board or the independent or non-employee directors. Persons interested in communicating directly with the independent or non-employee directors regarding their concerns or issues are referred to the procedures for such communications on our website at http://investors.atarabio.com/contact-board.

Code of Conduct

The Board has adopted a code of conduct that applies to all of our corporate employees, officers and directors, including those officers and employees responsible for financial reporting. Our code of conduct is available on our website at http://investors.atarabio.com/corporate-governance. We intend to disclose any amendments to this policy, or any waivers of its requirements, on our website or in public filings to the extent required by applicable SEC rules or exchange requirements.

Corporate Governance Guidelines

The Board has adopted Corporate Governance Guidelines to assure that the Board will have the necessary authority and practices in place to review and evaluate our business operations as needed and to make decisions that are independent of our management. The guidelines are also intended to align the interests of directors and management with those of our stockholders. The Corporate Governance Guidelines set forth the practices the Board intends to follow with respect to board composition and selection, board meetings and involvement of senior management, Chief Executive Officer performance evaluation and succession planning, and board committees and compensation. The Corporate Governance Guidelines also formalize the Board’s belief that a diversity of viewpoints, background, experience and other characteristics, such as race, gender, ethnicity, sexual orientation, culture and nationality, are an important part of its makeup, and that it actively seeks these characteristics in identifying director candidates.

Our Corporate Governance Guidelines are available on our website at http://investors.atarabio.com/corporate-governance.

Stock Ownership Guidelines

In December 2020, the Board approved Stock Ownership Guidelines for our directors and named executive officers to further align their financial interests with those of our stockholders, as well as promote sound corporate governance. For a detailed description of our Stock Ownership Guidelines see “Other Compensation Policies and Guidelines – Stock Ownership Guidelines” below.

Hedging Policy

The Company’s policies prohibit all employees (including executive officers) and directors from engaging in short sales, transactions in put or call options, hedging transactions or similar inherently speculative transactions with respect to our stock at any time.

Clawback Policy

In December 2020, the Board adopted an Incentive Compensation Recoupment Policy (“Clawback Policy”). For a detailed description of our Clawback Policy see “Other Compensation Policies and Guidelines – Clawback Policy” below.

Environmental, Social and Governance

Our approach to Environmental, Social and Governance (“ESG”) factors is consistent with our mission and our corporate values. We are committed to conducting our business in a safe and environmentally sustainable manner that promotes the health of our employees, our customers, our community and the environment.

Governance

We are committed to good corporate governance and to conduct our business in an ethical manner. We have adopted numerous policies and guidelines to facilitate legal and ethical conduct and to further align the interests of our employees and directors with our stockholders and other key stakeholders, including the patients we serve. For a detailed description of several of these policies and guidelines, see “Information Regarding the Board of Directors and Corporate Governance” above.

Environmental Sustainability

We are committed to operating our facilities in an environmentally responsible way to reduce environmental impacts and protect our people, our business, the environment and the communities where we operate. In light of the potential impact our business may have on the environment, we have set goals and adopted a number of internal policies and management systems designed to eliminate, reduce, or substitute hazardous materials and waste and reduce water and energy consumption. For

example, our Thousand Oaks, CA manufacturing facility: (i) is LEED certified (LEED V.3 BD+C Certified Core & Shell); (ii) is California Energy Commission Title 24 compliant for building and interior improvements; and (iii) has equipment and systems in place designed to ensure operational and energy efficiency.

Supplier Code of Conduct

We are committed to maintaining the highest standards of legal and ethical conduct and to reflect our corporate values of transparency, respect, accountability, integrity and trust (“TRAIT”). We expect our suppliers to demonstrate a similar commitment to legal and ethical business practices. In 2020, we developed and implemented the Atara Supplier Code of Conduct to convey our minimum expectations for our suppliers, and their respective subcontracts and suppliers, to: (i) operate in full compliance with all laws, rules and regulations; (ii) conduct business ethically and act with integrity; (iii) uphold the human rights of workers and to treat workers with dignity and respect; (iv) provide a safe and healthy working environment; and (v) operate in an environmentally responsible and efficient manner.

COVID-19 Response

During the COVID-19 pandemic, to support the health, safety and engagement of our staff and to ensure business continuity, we enacted numerous safeguards, such as: (i) reduction of on-site staff presence to essential activities and implemented remote work for non-essential activities; (ii) established engineering controls and business processes to reduce risk of on-site transition and preventing “super-spreader” events through physical distancing, enhanced cleaning and hygiene, and providing our staff with personal protective equipment; (iii) created an on-site COVID-19 monitoring program and an at-home testing program; and (iv) designed and executed a rapid and transparent communication and education strategy to ensure our staff has all relevant scientific data at the local, regional and national level.

In February 2020, we established a COVID-19 Rapid Response Team (“RRT”), sponsored by two Company executives, to assess and address business risks associated with the COVID-19 pandemic. The RRT created clear and regular communications channels, ensured enhanced cleaning and sanitation at our facilities, assessed the impact to our operations, donors, vendors, and clinical trial sites globally, as well as monitored peer companies’ approaches to apply best practices to our processes and decisions.

We have established a team tasked with creating a return-to-office plan to ensure staff safety and business continuity for the transition back to our offices and facilities. We intend to adopt several new work arrangement models to facilitate, where appropriate, workplace flexibility and to support our return-to-office plan safely and effectively. In addition to promoting productivity and efficiency, we believe these new work arrangement models will reduce the environmental impact of our business and operations.

Our continued efforts throughout the COVID-19 pandemic have reinforced our commitment to staff safety and serving patients by maintaining business continuity and executing on our commitment to develop transformative therapies for patients with serious diseases, including solid tumors, hematologic cancers and autoimmune diseases. We believe going above and beyond to mitigate the risk of COVID-19 to on-site staff and other stakeholders exemplifies our TRAIT values.

TRAIT Values and Diversity

We have formalized a set of corporate values to guide us in how we conduct our business and execute our corporate strategy.

Consistent with our TRAIT values, we believe a diverse and inclusive culture supports our ability to serve patients. We encourage all of our employees to participate in our diversity, inclusion and belonging initiatives to strengthen and grow our diverse and inclusive culture, which include educational webinars, cultural engagement events, fireside chats and a robust set of diversity, inclusion and belonging courses available through LinkedIn Learning. We also have an employee resource group, the Atara Women’s Alliance, the mission of which is to strengthen the leadership, voices and impact of women and to create an inclusive environment where diverse viewpoints and backgrounds are valued. In addition, our Board meets the current diversity requirements specified under California law and it is our expectation we will continue to meet such requirements in future periods.

Employee Engagement

We conduct employee feedback surveys on a regular basis that are designed to help us measure overall employee engagement. These surveys help us assess our culture and the feedback helps us in building a great company to work for and provides important insight into the areas we may need to focus on. The surveys will continue to be leveraged to support measuring our progress on the Company’s important initiatives and adherence to our TRAIT values.

PROPOSAL 2

Advisory Vote on Executive Compensation

Under the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”), and Section 14A of the Exchange Act, the Company’s stockholders are entitled to vote to approve, on an advisory basis, the compensation of the Company’s named executive officers as disclosed in this Proxy Statement in accordance with SEC rules.

This vote is not intended to address any specific item of compensation, but rather the overall compensation of the Company’s named executive officers and the philosophy, policies and practices described in this Proxy Statement. The compensation of the Company’s named executive officers subject to the vote is disclosed in the Compensation Discussion and Analysis, the compensation tables, and the related narrative disclosure contained in this Proxy Statement. As discussed in those disclosures, the Company believes that its compensation policies and decisions are designed to meet two objectives: (i) to attract and retain talented and skilled executives by paying for performance; and (ii) to align compensation of our executives with our stockholders through an appropriate mix of short-term and long-term compensation. Compensation of the Company’s named executive officers is designed to enable the Company to attract and retain talented and experienced executives to lead the Company successfully in a competitive environment.

Accordingly, the Board is asking the stockholders to indicate their support for the compensation of the Company’s named executive officers as described in this Proxy Statement by casting a non-binding advisory vote “FOR” the following resolution:

“RESOLVED, that the compensation paid to the Company’s named executive officers, as disclosed pursuant to Item 402 of Regulation S-K, including the Compensation Discussion and Analysis, compensation tables and narrative discussion that accompanies the compensation tables, is hereby APPROVED.”

Because the vote is advisory, it is not binding on the Board or the Company. Nevertheless, the views expressed by the stockholders, whether through this vote or otherwise, are important to the Board and the Compensation Committee, and accordingly the Board and the Compensation Committee intend to consider the results of this vote in making determinations in the future regarding executive compensation arrangements.

Advisory approval of this proposal requires the vote of the holders of a majority of the shares present in person, present by remote communications, if applicable, or represented by proxy and entitled to vote on the matter at the annual meeting. Unless the Board decides to modify its policy regarding the frequency of soliciting advisory votes on the compensation of the Company’s named executives, the next scheduled say-on-pay vote will be at the 2022 Annual Meeting of Stockholders.

The Board Of Directors Recommends

A Vote In Favor Of Proposal 2

PROPOSAL 3

RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Audit Committee has selected Deloitte & Touche LLP (“Deloitte & Touche”) as our independent registered public accounting firm for the fiscal year ending December 31, 2021 and has further directed that management submit the selection of its independent registered public accounting firm for ratification by the stockholders at the Annual Meeting. Deloitte & Touche has audited our financial statements since our inception in 2012. Representatives of Deloitte & Touche are expected to be present at the Annual Meeting. They will have an opportunity to make a statement if they so desire and will be available to respond to appropriate questions.

Neither our Bylaws nor other governing documents or law require stockholder ratification of the selection of Deloitte & Touche as our independent registered public accounting firm. However, the Audit Committee is submitting the selection of Deloitte & Touche to the stockholders for ratification as a matter of good corporate practice. If the stockholders fail to ratify the selection, the Audit Committee will reconsider whether or not to retain that firm. Even if the selection is ratified, the Audit Committee in its discretion may direct the appointment of different independent auditors at any time during the year if they determine that such a change would be in the best interests of Atara and our stockholders.

The affirmative vote of the holders of a majority of the shares present in person, present by remote communications, if applicable, or represented by proxy and entitled to vote on the matter at the Annual Meeting will be required to ratify the selection of Deloitte & Touche.

Principal Accountant Fees and Services

The following table represents aggregate fees billed to us for 2020 and 2019 by Deloitte & Touche.

	Fiscal Year Ended December 31,
	2020		2019
	(in thousands)
Audit fees(1)	$	1,220	$	1,041
Audit-related fees	-		-
Tax fees	-		-
All other fees	-			-
Total fees	$	1,220	$	1,041

(1)

Audit fees. Audit fees consist of fees for services rendered in connection with the audits of our annual financial statements and reviews of our interim financial statements, services rendered in connection with the filing of our registration statements, and the issuance of comfort letters and consents.

All fees described above were pre-approved by the Audit Committee.

Pre-Approval Policies and Procedures

The Audit Committee has adopted a policy and procedures for the pre-approval of audit and non-audit services rendered by Deloitte & Touche. The policy generally pre-approves specified services in the defined categories of audit services, audit-related services and tax services up to specified amounts. Pre-approval may also be given as part of the Audit Committee’s approval of the scope of the engagement of the independent auditor or on an individual, explicit, case-by-case basis before the independent auditor is engaged to provide each service. The pre-approval of services may be delegated to one or more of the Audit Committee’s members, but the decision must be reported to the full Audit Committee at its next scheduled meeting.

The Audit Committee has determined that the rendering of services other than audit services by Deloitte & Touche is compatible with maintaining the principal accountant’s independence.

THE BOARD OF DIRECTORS RECOMMENDS

A VOTE IN FAVOR OF PROPOSAL 3

SECURITY OWNERSHIP OF

CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth, as of March 31, 2021, information regarding beneficial ownership of our common stock by:

•

each person, or group of affiliated persons, known by us to beneficially own more than 5% of our common stock;

•

each of our named executive officers;

•

each of our directors and nominees for director, if any; and

•

all of our current executive officers and directors as a group.

Unless otherwise indicated, the address of each beneficial owner listed in the table below is c/o Atara Biotherapeutics, Inc., 611 Gateway Blvd., Suite 900, South San Francisco, CA 94080.

	Beneficial Ownership(1)
Beneficial Owner	Number of Shares	Percent of Total
5% Holders:
Entities managed by The Baupost Group(2)	9,108,988	10.8%
Redmile Group, LLC(3)	7,863,613	9.4%
Maverick Capital, Ltd.(4)	7,324,539	8.7%
Entities affiliated with Blackrock, Inc.(5)	6,454,415	7.7%
Entities affiliated with JPMorgan Chase & Co.(6)	6,028,503	7.2%
The Vanguard Group(7)	5,638,274	6.7%

Directors and Named Executive Officers:
Pascal Touchon, D.V.M.(8)	256,024	*
Jakob Dupont, M.D.(9)	87,693	*
Utpal Koppikar(10)	151,381	*
Joseph Newell(11)	167,757	*
Kristin Yarema, Ph.D.(12)	58,221	*
Roy Baynes, M.D., Ph.D.(13)	27,998	*
Eric L. Dobmeier(14)	100,500	*
Matthew K. Fust(15)	93,854	*
Carol Gallagher, Pharm.D.(16)	160,818	*
William K. Heiden(17)	83,500	*
Ronald C. Renaud, Jr.(18)	23,830	*
Maria Grazia Roncarolo, M.D.(19)	19,831	*
Beth Seidenberg, M.D.(20)	1,976,733	2.3%

All Executive Officers and Directors as a Group (14 persons) (21)	3,257,585	3.8%

*	Represents beneficial ownership of less than 1% of the outstanding common stock.

(1)

This table is based upon information supplied by officers, directors and certain principal stockholders and Schedules 13D and 13G filed with the SEC. Unless otherwise indicated in the footnotes to this table and subject to community property laws where applicable, we believe that each of the stockholders named in this table has sole voting and investment power with respect to the shares indicated as beneficially owned. Applicable percentages are based on 84,074,862 shares outstanding on March 31, 2021, adjusted as required by rules promulgated by the SEC. Common stock subject to stock options currently exercisable or exercisable within 60 days of March 31, 2021, or issuable upon settlement of restricted stock units (“RSUs”) within 60 days of March 31, 2021, is deemed to be outstanding for computing the percentage ownership of the person holding these options or restricted stock units and the percentage ownership of any group of which the holder is a member but is not deemed outstanding for computing the percentage of any other person.

(2)

The indicated ownership is based solely on a Schedule 13G/A filed with the SEC by the reporting person on February 12, 2021. The Schedule 13G/A provides information as of December 31, 2020 and, consequently, the beneficial ownership of the reporting person may have changed between December 31, 2020 and March 31, 2021. The Baupost Group, L.L.C. (“Baupost”) is a registered investment adviser and acts as an investment adviser and general partner to various private investment limited partnerships on whose behalf these securities were purchased. None of the investment limited partnerships owns greater than 5% of any class of voting securities. Baupost Group GP, L.L.C. (“BG GP”) is the manager of Baupost, and Mr. Seth A. Klarman is the managing member of BG GP. Each of Baupost, BG GP, and Mr. Klarman has shared voting and dispositive power over the shares. Mr. Klarman and BG GP disclaim beneficial ownership of the securities. The principal business address for Baupost, BG GP, Mr. Klarman and the investment limited partnerships is 10 St. James Avenue, Suite 1700, Boston, MA 02116.

(3)

The indicated ownership is based solely on a Schedule 13G/A filed with the SEC by the reporting person on February 16, 2021. The Schedule 13G/A provides information as of December 31, 2020 and, consequently, the beneficial ownership of the reporting person may have changed between December 31, 2020 and March 31, 2021. Redmile Group, LLC (“Redmile”) and Jeremy C. Green’s beneficial ownership of the shares is through certain private investment vehicles and/or separately managed accounts managed by Redmile, which may be deemed beneficially owned by Redmile as investment manager of such private investment vehicles and/or separately managed accounts. Each of Redmile and Mr. Green has shared voting and investment power with respect to the shares. Redmile and Mr. Green may also be deemed to beneficially own 7,796,303 shares issuable upon exercise of certain pre-funded warrants (the “Warrants”), subject to terms that the Company may not effect any exercise of any Warrant, and a holder of a Warrant does not have the right to exercise any portion of the Warrant held by such holder, to the extent that such holder, together with such holder’s affiliates, would beneficially own a number of shares in excess of 9.99% of the shares of common stock of the Company then issued and outstanding, which percentage may be changed at a holder’s election upon 61 days’ notice to the Company. According to the Schedule 13G/A, the shares reported as beneficially owned by Redmile represent 9.99% of the outstanding shares of common stock of the Company. The reported securities may also be deemed beneficially owned by Mr. Green as the principal of Redmile. The address for Redmile is One Letterman Drive, Building D, Suite D3-300, The Presidio, San Francisco, CA 94129.

(4)

(5)

The indicated ownership is based solely on a Schedule 13G/A filed with the SEC by the reporting person on January 29, 2021. The Schedule 13G/A provides information as of December 31, 2020 and, consequently, the beneficial ownership of the reporting person may have changed between December 31, 2020 and March 31, 2021. Includes shares owned by the following subsidiaries of BlackRock, Inc. (“BlackRock”): BlackRock Life Limited; BlackRock Advisors, LLC; BlackRock (Netherlands) B.V.; BlackRock Institutional Trust Company, National Association; BlackRock Asset Management Ireland Limited; BlackRock Financial Management, Inc.; BlackRock Japan Co., Ltd.; BlackRock Asset Management Schweiz AG; BlackRock Investment Management, LLC; BlackRock Investment Management (UK) Limited; BlackRock Asset Management Canada Limited; BlackRock (Luxembourg) S.A.; BlackRock Investment Management (Australia) Limited; BlackRock Fund Advisors; and BlackRock Fund Managers Ltd, and reports, as of December 31, 2020, sole voting power over 6,288,668 of such shares and sole dispositive power over 6,454,415 of such shares. The address for Blackrock is 55 East 52^nd Street, New York, NY 10055.

(6)

The indicated ownership is based solely on a Schedule 13G filed with the SEC by the reporting person on January 8, 2021. The Schedule 13G provides information as of December 31, 2020 and, consequently, the beneficial ownership of the reporting person may have changed between December 31, 2020 and March 31, 2021. Includes shares owned by the following subsidiaries of JPMorgan Chase & Co. (“JPMorgan Chase”): J.P. Morgan Investment Management Inc.; JPMorgan Chase Bank, National Association; and JPMorgan Asset Management (UK) Limited, and reports, as of December 31, 2020, sole voting power over 5,136,870 of such shares and sole dispositive power over 6,017,103 of such shares. The address for JPMorgan Chase is 383 Madison Avenue, New York, NY 10179.

(7)

The indicated ownership is based solely on a Schedule 13G/A filed with the SEC by the reporting person on February 8, 2021. The Schedule 13G/A provides information as of December 31, 2020 and, consequently, the beneficial ownership of the reporting person may have changed between December 31, 2020 and March 31, 2021. Includes shares owned by the following subsidiaries of The Vanguard Group, Inc. (“Vanguard”): Vanguard Asset Management, Limited; Vanguard

Fiduciary Trust Company; Vanguard Global Advisors, LLC; Vanguard Group (Ireland) Limited; Vanguard Investments Australia Ltd; Vanguard Investments Canada Inc.; Vanguard Investments Hong Kong Limited; and Vanguard Investments UK, Limited, and reports, as of December 31, 2020, shared voting power over 146,512 of such shares, sole dispositive power over 5,430,807 of such shares and shared dispositive power over 207,467 of such shares. The address of the Vanguard Group, Inc. is 100 Vanguard Blvd., Malvern, PA 19355.

(8)	Consists of 53,559 shares held directly by Dr. Touchon and 202,465 shares pursuant to options exercisable and RSUs expected to vest within 60 days of March 31, 2021.

(9)	Consists of 87,693 shares pursuant to options exercisable and RSUs expected to vest within 60 days of March 31, 2021.

(10)	Consists of 46,134 shares held directly by Mr. Koppikar and 105,247 shares pursuant to options exercisable and RSUs expected to vest within 60 days of March 31, 2021.

(11)	Consists of 24,737 shares held directly by Mr. Newell and 143,020 shares pursuant to options exercisable and RSUs expected to vest within 60 days of March 31, 2021.

(12)	Consists of 16,018 shares held directly by Dr. Yarema and 42,203 shares pursuant to options exercisable and RSUs expected to vest within 60 days of March 31, 2021.

(13)	Consists of 4,000 shares held directly by Dr. Baynes and 23,998 shares pursuant to options exercisable within 60 days of March 31, 2021.

(14)	Consists of 20,000 shares held directly by Mr. Dobmeier and 80,500 shares pursuant to options exercisable within 60 days of March 31, 2021.

(15)	Consists of 25,854 shares held directly by Mr. Fust and 68,000 shares pursuant to options exercisable within 60 days of March 31, 2021.

(16)	Consists of 92,818 shares held directly by Dr. Gallagher and 68,000 shares pursuant to options exercisable within 60 days of March 31, 2021.

(17)	Consists of 12,500 shares held directly by Mr. Heiden and 71,000 shares pursuant to options exercisable within 60 days of March 31, 2021.

(18)	Consists of 23,830 shares pursuant to options exercisable within 60 days of March 31, 2021.

(19)	Consists of 19,831 shares pursuant to options exercisable within 60 days of March 31, 2021.

(20)

Consists of 1,822,228 shares of common stock held by Kleiner Perkins Caufield & Byers XV, LLC (“KPCB XV”) and 54,422 shares of common stock held by KPCB XV Founders Fund, LLC (“KPCB XV FF”). All shares are held for convenience in the name of “KPCB Holdings, Inc., as nominee” for the accounts of such entities. The managing member of KPCB XV and KPCB XV FF is KPCB XV Associates, LLC (“KPCB XV Associates”). Michael Abbott, L., John Doerr, William Gordon, Wen Hsieh, Randy Komisar, Matthew Murphy, Theodore Schlein and Dr. Seidenberg, the managing members of KPCB XV Associates, exercise shared voting and dispositive control over the shares held by KPCB XV. Dr. Seidenberg disclaims beneficial ownership of all shares held by KPCB XV except to the extent of her pecuniary interest therein. The principal business address for all entities and individuals affiliated with Kleiner Perkins Caufield & Byers is 2750 Sand Hill Road, Menlo Park, CA 94025. Also includes 19,189 shares held directly by Dr. Seidenberg, 394 shares held by irrevocable trusts, of which Dr. Seidenberg is trustee, and 80,500 shares pursuant to options exercisable within 60 days of March 31, 2021.

(21)	Includes 1,065,063 shares issuable pursuant to options exercisable and RSUs expected to vest within 60 days of March 31, 2021.

EXECUTIVE OFFICERS

The following table sets forth certain information with respect to our executive officers as of April 22, 2021. Biographical information with regard to Dr. Touchon is presented under “Proposal No. 1—Election of Directors” in this Proxy Statement.

Name	Age	Position(s)
Pascal Touchon, D.V.M.	58	President, Chief Executive Officer and Director
Jakob Dupont, M.D.	56	Executive Vice President, Global Head of Research and Development
Utpal Koppikar	50	Senior Vice President, Chief Financial Officer
Amar Murugan	46	Senior Vice President, General Counsel
Joseph Newell	51	Executive Vice President, Chief Operations Officer
Kristin Yarema, Ph.D.	50	Senior Vice President, Chief Commercial Officer

Jakob Dupont, M.D., 56, has served as our Executive Vice President, Global Head of Research & Development since May 2020. From December 2018 to May 2020, Dr. Dupont served as Chief Medical Officer at Gossamer Bio, Inc. He previously served as the Vice President and Global Head of Breast and Gynecologic Cancer Development for Genentech USA, Inc. (Roche) from January 2017 to December 2018. Before that, Dr. Dupont served as the Senior Vice President and Chief Medical Officer of OncoMed Pharmaceuticals, Inc. from January 2012 to December 2016 and as the Vice President, Clinical Research from October 2011 to January 2012. From September 2006 to October 2011, Dr. Dupont held roles of increasing responsibility in early to late-stage clinical development at Genentech, most recently as its Global Medical Director, Avastin from January 2011, in which capacity he oversaw the global medical strategy and late-stage medical program for Avastin. Dr. Dupont has served as a member of the board of directors of Apexigen, Inc. since August 2020. Since February 2009, Dr. Dupont has also served as an adjunct clinical assistant professor at the Stanford University School of Medicine. Prior to joining Genentech in 2006, Dr. Dupont was a faculty member at Memorial Sloan-Kettering Cancer Center from January 2002 to September 2006. Dr. Dupont received an A.B. in Philosophy from Vassar College, received an M.A. in Philosophy from New York University, and received an M.D. from the Joan & Sanford I. Weill Medical College of Cornell University.

Utpal Koppikar, 50, has served as our Senior Vice President, Chief Financial Officer since June 2018. Prior to joining Atara, from June 2011 to June 2018, Mr. Koppikar held several senior financial leadership positions at Gilead Sciences, Inc., including as Vice President of Corporate and Operations Finance, responsible for R&D, corporate, G&A, process development and manufacturing, and strategic sourcing. Prior to Gilead, from January 2001 to June 2011, he served in multiple finance roles of increasing responsibility at Amgen, Inc. Mr. Koppikar earned his B.S. in aerospace engineering at the University of Maryland and received a M.S. in aeronautical and astronautical engineering from Stanford University. He also holds an MBA in finance and marketing from The Anderson School at UCLA.

Amar Murugan, 46, has served as our Senior Vice President, General Counsel since April 2020. From February 2013 to February 2020, Mr. Murugan held several senior legal leadership positions at Assertio Therapeutics, Inc., a specialty pharmaceutical company, including as Vice President, Legal Affairs from February 2013 to February 2016, as Vice President, Legal and Deputy General Counsel from March 2016 to June 2018, and most recently as Senior Vice President and General Counsel from July 2018 to February 2020. Prior to joining Assertio, he was a partner in the law firms of Baker Botts L.L.P. and McDermott Will & Emery LLP, where he represented technology and life sciences companies in connection with public and private financings, mergers and acquisitions and corporate securities matters. Mr. Murugan holds a B.S. from Georgetown University and a J.D. from University of California, Los Angeles.

Joseph Newell, 51, has served as our Executive Vice President and Chief Operations Officer since February 2020. From April 2017 to February 2020, Mr. Newell served as our Executive Vice President and Chief Technical Operations Officer. From July 2015 to April 2017, he was Vice President, North America Manufacturing at Alexion Pharmaceuticals, Inc., a publicly traded biotechnology company. From March 2008 to July 2015, Mr. Newell served various roles within Amgen, Inc., a publicly traded human therapeutics company, including as Executive Director and Plant Manager from August 2012 to September 2014 and Executive Director, Operations Strategic Planning from September 2014 to June 2015. He received a B.S. from California State Polytechnic University – Pomona.

Kristin Yarema, Ph.D., 50, has served as our Senior Vice President, Chief Commercial Officer since February 2020. From February 2013 to January 2020, Dr. Yarema held positions of increasing responsibility at Amgen Inc., most recently serving as Amgen’s Vice President & Therapeutic Area Head for Global Product Strategy & Commercial Innovation in Hematology and Oncology with global accountability for all hematology marketed and pipeline products, including a portfolio of innovative therapies for various hematological malignancies such as multiple myeloma, leukemia and lymphoma. From July 2007 to January 2013, she held numerous roles of increasing responsibility at Novartis AG. From September 2000 to June 2007, she held roles of increasing responsibility at McKinsey & Company. In addition, Dr. Yarema has served as a member on the board of directors of the Celiac Disease Foundation, the U.S.-based patient advocacy group, since 2017 and as a board member of the Alliance for Regenerative Medicine, an international patient advocacy organization dedicated to realizing the promise of regenerative medicines and therapies, since 2020. Dr. Yarema holds a Ph.D. in Chemical Engineering from University of California, Berkeley and a B.S. in Chemical Engineering and B.A. in English from Stanford University.

EXECUTIVE COMPENSATION

Compensation Discussion and Analysis

This Compensation Discussion and Analysis (“CD&A”) explains the strategy, design, and decision-making related to our compensation programs and practices for our principal executive officer, our principal financial officer and our three other most highly compensated executive officers, referred to collectively as our named executive officers. This CD&A is intended to provide perspective on the information contained in the tables that follow this discussion. For fiscal year 2020, our named executive officers were:


Name	Position
Pascal Touchon, D.V.M.	President and Chief Executive Officer
Jakob Dupont, M.D.¹	Executive Vice President, Global Head of Research & Development
Utpal Koppikar	Senior Vice President, Chief Financial Officer
Joseph Newell	Executive Vice President, Chief Operations Officer
Kristin Yarema, Ph.D.²	Senior Vice President, Chief Commercial Officer

¹Dr. Dupont joined the Company in May 2020.
²Dr. Yarema joined the Company in February 2020.

While the principal purpose of this CD&A is to discuss the compensation of our named executive officers, many of the programs discussed apply to other members of senior management who, together with the named executive officers, are collectively referred to as our executive officers.

Executive Summary

We are a leading allogeneic T-cell immunotherapy company pioneering the development of transformative therapies for patients with serious diseases including solid tumors, hematologic cancers and autoimmune diseases.  Using our novel allogeneic EBV T-cell platform, we intend to deliver treatments to patients with high unmet need.  Our platform aims to leverage the unique biology of EBV T cells to channel the power of the immune system and has the potential to treat a wide range of diseases.  We are applying this one platform to create a robust pipeline with the goal of developing treatments that improve the quality and longevity of patients’ lives.  Our pipeline includes tabelecleucel (tab-cel^®) in Phase 3 development for patients with EBV-driven post-transplant lymphoproliferative disease (“PTLD”) and in earlier stages of development for other EBV-associated diseases, ATA188 for the potential treatment of multiple sclerosis and next-generation CAR T therapies for the potential treatment of solid tumors and hematologic cancers.

Despite the significant headwinds created by the COVID-19 pandemic over the past year to our business, operations, people and communities, we believe the Company had a remarkable year, delivering on key milestones across the Company’s three strategic priorities. Significant accomplishments of our team in 2020 include: (i) the important progress we made on the anticipated regulatory filing package for tab-cel, both in the United States and in Europe; (ii) initiation of our Phase 2 multi-cohort study to evaluate tab-cel in other areas of high unmet medical need; (iii) initiation and continued enrollment of our Phase 2 randomized controlled study of ATA188, a product candidate with the potential to transform the treatment paradigm for multiple sclerosis; (iv) execution of a strategic collaboration with Bayer AG (“Bayer”) involving ATA2271 and ATA3271, our next-generation mesothelin-targeted CAR T program; (v) initiation of investigational new drug (“IND”) enabling studies for ATA3219, our preclinical, allogeneic CD19 CAR T we believe has the potential be a best-in-class therapy; and (vi) numerous presentations of clinical and preclinical data throughout 2020, which reflect not only the potential of our product candidates to treat patients with high unmet need, but also the perseverance and resilience of our team as well as the healthcare professionals and patients participating in our clinical development programs. The commitment and dedication of the entire Atara team in 2020 was impressive and inspiring. Through unprecedented and unpredictable circumstances, our team remained nimble, adapting to new challenges, and protecting the health and safety of Atara’s employees while remaining focused on our mission to bring transformative therapies to patients with serious diseases.

This focus and resiliency helped us deliver on key milestones across Atara’s three strategic priorities in 2020:


Strategic Priority	Select Achievements for 2020
Tabelecleucel (tab-cel^®)	✓ Conducted an interim analysis of the pivotal Phase 3 ALLELE study showing tab-cel for patients with EBV+ PTLD achieved a 50% objective response rate and safety consistent with historical data ✓ Discussions with FDA confirmed Atara may complete a Biologics License Application (“BLA”) filing with the pivotal Phase 3 ALLELE study’s currently enrolled patients with at least six-months follow-up for duration of response ✓ Completed the preclinical module 4 of the BLA filing package and made progress through active and productive discussions with FDA on the final content of the chemistry, manufacturing and control (“CMC”) module 3 ✓ Progressed enrollment in the pivotal Phase 3 ALLELE study despite challenges posed by the COVID-19 pandemic ✓ Initiated a tab-cel Phase 2 multi-cohort study in the third quarter of 2020 concurrently in the U.S. and the European Union (“EU”) ✓ Received ratification from Pediatric Committee of the European Medicines Agency of our Pediatric Investigation Plan (‘PIP”)
ATA 188	✓ Progressed enrollment in the ATA188 Phase 2 randomized, double-blind, placebo-controlled trial (“RCT”) in Progressive Multiple Sclerosis (“PMS”) following enrollment of its first patient in June 2020 despite challenges posed by the COVID-19 pandemic ✓ Presented data from the ongoing Phase 1 clinical study of ATA188 at the 8^th Joint ACTRIMS-ECTRIMS Meeting in September 2020, showing all PMS patients achieving Sustained Disability Improvement (“SDI”) at any time point maintained SDI at all future time points, with favorable safety at all dose levels ✓ Presented new data from the Open Label Extension of the Phase 1 study at the European Charcot Foundation 28^th Annual Meeting in November 2020 showing that 50% of patients in the two highest dose cohorts demonstrated SDI at 15 months
CAR T Programs	ATA2271/ATA3271 ✓ Entered into a strategic collaboration with Bayer in December 2020 through an exclusive worldwide license agreement and research, development and manufacturing collaboration ✓ Presented IND-enabling ATA2271 preclinical data at the American Association for Cancer Research (“AACR”) Virtual Meeting II in June 2020 ✓ Announced FDA clearance of the IND for ATA2271 in September 2020 ✓ Presented first preclinical data on ATA3271 at the Society for Immunotherapy of Cancer (“SITC”) 35^th Anniversary Annual Meeting in November 2020 ATA3219 ✓ An academic team presented initial clinical proof-of-principle that an EBV T-cell platform has the potential to generate off-the-shelf, allogeneic CAR T immunotherapies with high response rates, durable responses and low risk of toxicity at the 2020 Transplantation and Cellular Therapy (“TCT”) Meetings in February 2020 ✓ Initiated IND-enabling studies and held a pre-IND meeting with the FDA in October 2020, where we received feedback to guide the IND filing for ATA3219 ✓ Presented preclinical data for ATA3219 demonstrate functional persistence, polyfunctional phenotype and efficient targeting of CD19-expressing tumor cells both in vitro and in vivo at the 62nd American Society for Hematology (“ASH”) Annual Meeting and Exposition in December 2020

We believe these significant achievements helped to deliver our strong total stockholder return of over 19% in 2020.

2020 Executive Compensation Program Highlights

Throughout the past year, the Compensation Committee, in conjunction with the entire Board, monitored the evolving COVID-19 pandemic and assessed the potential impact on our business and operations, including our manufacturing operations, the timing and execution of clinical and preclinical studies, and the health and safety of our employees. Compensation decisions were designed to advance the interests of the Company, our stockholders and our employees. To further strengthen the alignment between executive and stockholder interests, the Compensation Committee also made several changes to our executive compensation program described below.

Our first two highlights are changes to our equity granting practices:

Introduction of Performance-based RSUs (“PSUs”)

Equity Value Split 50/50 RSUs / Options

• Informed by stockholder feedback, the Compensation Committee introduced PSUs to the long-term equity vehicle mix for 2020

• PSUs, which were granted to all named executive officers, vest based on tab-cel milestone achievements

• In late 2020, the Compensation Committee approved a switch to granting equity on a target value basis equally between options and RSUs in 2020, which was implemented in March 2021

Our next highlight further aligned our pay program with leading market practices:

Introduction of Stock Ownership Guidelines

• To further strengthen the alignment between executive and stockholder interests, in late 2020 the Compensation Committee approved stock ownership guidelines for executives and directors, which became effective beginning January 1, 2021

• This decision was based in part on stockholder input and was confirmed with market practice analysis

Compensation Practices and Governance Highlights

The Compensation Committee recognizes the Company operates in the highly competitive and dynamic biotechnology industry, and in particular, within the cell and gene therapy area. Therefore, to ensure that the overall compensation packages we offer to our executive officers remain competitive with the packages offered by companies with which we compete for executive talent, our Compensation Committee reviews market best practices in executive compensation to continually refine our programs. In addition, our Compensation Committee reviews our executive compensation program to ensure our practices align the interests of our directors and executive officers with our stockholders. Below are features of our compensation program which the Compensation Committee believes demonstrate our commitment to link executive compensation to performance and to incentivize the creation of stockholder value.

Pay for Performance Philosophy	❖ We link a significant proportion of the compensation of our named executive officers to the achievement of our corporate goals and stock price appreciation
Stockholder Alignment	❖ Our emphasis on long-term equity awards aligns the interests of executives and stockholders
Corporate Strategy Alignment	❖ Our Compensation Committee establishes incentive compensation programs based on metrics that are aligned with our corporate strategy and designed to grow stockholder value
Clawback Policy (new)	❖ We permit the Company to recoup variable compensation from Section 16 officers, including our named executive officers, in the event of misconduct that causes material accounting restatement
Change in Control Provisions	❖ Does not include excessive change in control or severance payments ❖ Provides “double-trigger” change in control benefits ❖ Does not include excise tax gross-ups for severance or change in control benefits
Stock Ownership Guidelines (new)	❖ In late 2020, we adopted stock ownership guidelines for our executives and directors to further align their interests with those of our stockholders
Anti-Hedging and Pledging Provisions	❖ Our Insider Trading Policy strictly prohibits hedging and pledging activities by executive officers and directors
Repricing Prohibited	❖ Our equity plan prohibits repricing of underwater stock options without prior stockholder approval
Stockholder Feedback	❖ We value the feedback of our stockholders and solicit it throughout the year, including through an annual say-on-pay proposal
Compensation Risk Assessment	❖ Our Compensation Committee assesses the risk associated with our compensation policies and practices annually, to ensure they are not reasonably likely to have a material adverse effect on the Company
No Guaranteed Annual Bonus or Salary Increase	❖ We do not guarantee executive officers annual salary increases or bonuses.
Avoid Excessive Perquisites	❖ Consistent with our pay for performance philosophy, we provide very limited perquisites to our executive officer and do not provide personal perquisites such as automobile leases
Good Standing Requirement	❖ We require executive officers and all other employees to be in good standing to be eligible for awards under our short-term cash incentive program

Result of Stockholder Advisory Vote and Stockholder Engagement

We believe that strong corporate governance should include year-round, constructive dialogue with stockholders on business strategy, operational executive, corporate governance, our executive compensation program and other critical business matters. Our engagement with stockholders allows us to better understand stockholders' views and interests, solicit their feedback and share our perspective on these and other important subjects.

In 2019 we held our first stockholder advisory vote on executive compensation (commonly referred to as a “say-on-pay” vote), which resulted in strong support. There was a decreased level of support of our say-on-pay proposal in 2020. Following the 2020 annual meeting, we initiated further engagement with stockholders aimed at eliciting a better understanding of their concerns and perspectives. The Compensation Committee considered the feedback obtained from these discussions with our stockholders in making its executive compensation decisions in 2020, and to the extent applicable, will consider such feedback for future periods. The Compensation Committee also considered issues identified by several proxy advisory firms, adopting several policies in line with peer companies to further strengthen the alignment between executive and stockholder interests and mitigate perceived compensation-related risk.

Our investor relations team and members of our senior management regularly engage and have dialogue with our stockholders throughout the year, including following our quarterly earnings calls, through participation at investor conferences and via other channels of communication. These interactions provide an opportunity to discuss the Company’s executive compensation measures and obtain feedback from stockholders to better understand investor perspectives on the Company’s strategic, operational, governance, executive compensation matters and other topics of interest.

Compensation Philosophy and Objectives

Our philosophy in setting compensation policies for executive officers has two primary objectives: (i) to attract and retain talented and skilled executives by paying for performance; and (ii) to align compensation of our executives with the interests of our stockholders through an appropriate mix of short-term and long-term compensation. Our Compensation Committee believes that executive compensation should be directly linked to corporate performance and longer-term stockholder value and our executive compensation program is appropriately designed, balanced, and appropriately links executive compensation to both continuous and longer-term improvement in corporate performance.

Our compensation program is consistently and meaningfully focused on pay for performance principles, and historically payouts have been both above and below target under our annual incentive plans to reflect Company performance in that year. In determining compensation for executive officers, the Compensation Committee does not formulaically benchmark against any one specific reference point. Instead, the Compensation Committee considers several factors, including peer group survey data, tenure, role, responsibilities, performance and local competitive market practices and trends. Our Compensation Committee focuses on the following principles to guide decisions regarding executive compensation:

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Competitive Total Compensation Package. We strive to offer a market-competitive compensation package that enables us to attract and retain highly qualified and high-performing executives. To ensure that our total compensation levels are competitive, our Compensation Committee, in consultation with independent advisors and senior management, reviews the compensation policies and practices of our peer companies. The Compensation Committee, with the assistance of an independent compensation consultant, also reviews the composition of the peer group to ensure that the peer group continues to accurately reflect comparable companies as our Company grows and evolves over time.

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Pay-for-Performance. We structure our executive compensation program to reflect individual performance as well as achievement of our annual corporate goals and longer-term business strategies and objectives. We achieve this balance by linking short-term and long-term cash and equity incentives to performance of corporate and individual performance goals and objectives.

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Alignment with Stockholders. We use equity-based awards to align executive incentives with the creation of stockholder value.

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Internal Parity, Flexibility and Simplicity. To the extent practicable, we design our compensation program to achieve the following: (i) internal parity for similarly situated executives within the Company, (ii) flexibility that allows us to adapt to rapid changes in the competitive environment for executives in the biotechnology industry and (iii) simplicity in design that allows for clear and easy to understand communication to our employees, as well as ease of administration.

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Avoidance of Excessive Perquisites. We generally intend to avoid the payment of excessive, unusual or unnecessary perquisites to executives, although from time-to-time we may offer certain perquisites that are common and appropriate for similarly situated executives of peer companies. In addition, we do not offer our executive team any substantially enhanced benefits or perquisites when compared with our overall employee population.

How We Determine Executive Compensation

Role of the Compensation Committee and Executive Officers

The Compensation Committee oversees and approves all compensation arrangements for our executive officers, including our named executive officers. While the Compensation Committee has numerous resources available to it, including input from our Board, Chief Executive Officer and independent consultants, ultimate decision-making authority rests with the Compensation Committee. The Compensation Committee retains discretion over base salaries, annual bonuses and equity compensation for executive officers and bases its decision on a careful review of performance as well as the competitive market environment.

The Compensation Committee typically meets at least four times per year, with additional meetings as necessary. The Compensation Committee met five times in 2020. The agenda for each meeting is set by the Chair of the Compensation Committee, with consultation, as appropriate with our Chief Executive Officer, Chief People Officer, General Counsel and Radford, our independent compensation consultant. Members of management and Radford may be invited to participate in meetings, but the Compensation Committee meets regularly in executive session. Our Chief Executive Officer is often present and participates in discussions regarding compensation of our other executive officers. Executives, including our Chief Executive Officer, are not present during deliberations regarding their own performance or compensation.

Role of Compensation Consultants

The Compensation Committee has retained the services of Radford, as our independent compensation consultant. Radford assists the Compensation Committee in its review of executive and director compensation practices, including the market competitiveness of compensation, executive compensation design, benchmarking with industry peers and other technical considerations including those related to tax and accounting.

For 2020 compensation matters, Radford advised and assisted with the following:

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Development of a peer group to be used in the evaluation of 2020 executive and director compensation;

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Documentary support, including peer group and industry data with respect to base salaries, target annual cash bonuses, and equity compensation;

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A market analysis of executive officer compensation compared to our peer group, which market analysis was reviewed with the Compensation Committee and used to guide 2020 base salary and bonus target decisions for our named executive officers;

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A market analysis of long-term incentive compensation of our executive officers compared to our peer group, which market analysis was reviewed with the Compensation Committee and used to guide 2020 long-term equity compensation determinations; and

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A market analysis of director compensation compared to our peer group, which market analysis was reviewed with the Compensation Committee and used to guide adjustments made to the compensation payable to our non-employee directors.

The Compensation Committee regularly evaluates the services Radford provides and has final authority to engage and terminate their services. Our Compensation Committee has assessed Radford’s independence consistent with Nasdaq listing standards and has concluded that the engagement of Radford does not raise any conflict of interest.

Competitive Assessment

A key objective of our executive compensation program is to ensure that the overall compensation packages we offer our executive officers remain competitive with the packages offered by companies with which we compete for executive talent. The Compensation Committee consults with its independent compensation consultant to develop a peer group of companies to serve as the basis for comparing our executive compensation program to the market.

2020 Peer Group

With the assistance of Radford, the Compensation Committee annually reviews the composition of the peer group to account for changes in both our business and the businesses of the companies in the peer group. While referencing the peer group compensation levels is helpful in determining market-competitive compensation for our named executive officers, the Compensation Committee does not directly tie any pay elements to particular benchmarks within the peer group. Rather, peer data is one consideration, along with employee knowledge, skills and experience, individual performance, and scope of responsibilities, among other factors.

A key change to the 2020 peer group from the previous year was to realign our peer group to target companies within a market cap range of $300 million to $3 billion. As a result, five companies were removed because they were outliers based on the new criteria or had been acquired. In developing the 2020 peer group, the Compensation Committee considered several key qualitative and quantitative elements as set out below.

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Sector and Stage—highly competitive and dynamic biotechnology industry, with an emphasis on pre-commercial biopharmaceutical companies within the cell and gene therapy area

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Stage of Business—focus on later stage (Phase 3) pre-commercial companies, with an emphasis on oncology and cell and gene therapy area

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Market Capitalization—between approximately $300 million and $3 billion

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Headcount—generally between 100 to 1,000 employees

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Geography-U.S.-based companies located in biotechnology “hub” locations

Following this analysis, the Compensation Committee identified the following 19 publicly-traded, U.S-based biotechnology/pharmaceutical companies as our peer group to be used in reviewing compensation for 2020:

2020 Peer Group
Agenus Inc.	Agios Pharmaceuticals, Inc.	Aimmune Therapeutics Inc.
Allogene Therapeutics, Inc.	Clovis Oncology, Inc.	Editas Medicine, Inc.*
Epizyme, Inc.	Fate Therapeutics, Inc.	ImmunoGen, Inc.
Iovance Biotherapeutics, Inc.	Karyopharm Therapeutics Inc.	MacroGenics, Inc.
Precision Biosciences, Inc.*	Rubius Therapeutics, Inc.	Sangamo Therapeutics, Inc.
TCR² Therapeutics Inc.*	TG Therapeutics, Inc.	Voyager Therapeutics, Inc.
Xencor, Inc.
*New additions for 2020

Elements of Executive Compensation

The Compensation Committee has developed an executive compensation program that consists of the following primary elements:

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Base salary;

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Short-term incentives in the form of an annual cash bonus opportunity; and

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Long-term incentives in the form of equity-based compensation (stock options, RSUs and PSUs).

The relative mix of these components is generally weighted towards incentive rather than fixed compensation and towards long-term incentive compared to short-term incentive compensation. We believe this relative weighting towards long-term equity-based compensation ensures that the interests of our executives are aligned with those of our stockholders.

Base Salary

Base salaries are set to be competitive within our industry and are important in attracting and retaining talented executives. Base salaries are fixed pay set with consideration for responsibilities, market data, employee knowledge, skills and experience, individual performance, and scope of responsibilities, among other factors.

Annual Cash Bonus

The annual cash incentive award plan is intended to motivate and reward our executives for the achievement of individual goals as well as the strategic goals of the Company.

In 2020, our annual incentives were based on key strategic, research, development, regulatory, clinical, financial and operational corporate objectives.

Long-Term Equity Incentives

Long-term equity awards incentivize executives to deliver long-term stockholder value, while also providing a retention vehicle for our top executive talent.

Equity awards are typically delivered as a combination of some or all of the following:

• Stock options

• RSUs

• PSUs

Target Compensation Mix

Our Compensation Committee has not established formal policies or guidelines for allocating compensation between annual and long-term incentive compensation, or between cash and non-cash compensation. Instead, through our compensation program, the Compensation Committee seeks to align pay and performance. As can be seen in the graphs below, a large percentage of executive pay in 2020 was variable and “at-risk” (89% for the Chief Executive Officer, and 79% on average for our other named executive officers), meaning that value to the executive is tied directly to corporate goals, individual goals (except for the Chief Executive Officer), and stock price performance. In this sense, we believe we have established a pay-for-performance culture and pay program. The balance between these components may change from year to year based on corporate strategy and objectives, among other considerations.

The PSUs in the chart reflect the target grant date aggregate fair value of PSUs based on the performance conditions.

Base Salary

In considering the appropriate level of base salaries for our named executive officers for 2020, the Compensation Committee employed a holistic analysis of multiple relevant factors using its professional judgment and experience, emphasizing the following:

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the individual contribution of the named executive officer to our key strategic, research, development, regulatory, clinical, financial and operational corporate objectives in 2020;

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the criticality of each named executive officer’s skill set and relative expected future contributions to our business;

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the growing complexity of our business, which results in increased workloads and responsibilities of each of our named executive officers; and

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the need to attract, retain and motivate the named executive officer in a highly competitive marketplace.

The Compensation Committee considered the base salaries of similarly situated executives at our 2020 peer group companies for an understanding of whether our compensation program is competitively positioned to retain our highly qualified named executive officers. The Compensation Committee determined that each named executive officer should receive an increase in his or her base salary for 2020 as follows:

Named Executive Officer

2019
Base Salary

2020
Base Salary

Year-over-Year
% Increase

Pascal Touchon, D.V.M.	$615,000	$650,000	5.7%
Jakob Dupont, M.D.¹	-