TABLE OF CONTENTS
As filed with the Securities and Exchange
Commission on January 9, 2018March 27, 2020
SCHEDULE 14A
(Rule 14a-101)
INFORMATION REQUIRED IN PROXY STATEMENT
SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934
Filed by the Registrant
Filed by a Party other than the Registrant
Check the appropriate box:

Preliminary Proxy Statement

Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

Definitive Proxy Statement

Definitive Additional Materials

Soliciting Material Pursuant to §240.14a-12
Northwest Biotherapeutics, Inc.
(Name of Registrant as Specified in its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box):

No fee required.

Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
(1)
Title of each class of securities to which transaction applies:
(2)
Aggregate number of securities to which transaction applies:
(3)
Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
(4)
Proposed maximum aggregate value of transaction:
(5)
Total fee paid:

Fee paid previously with preliminary materials.

Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
(1)
Amount Previously Paid:
(2)
Form, Schedule or Registration Statement No.:
(3)
Filing Party:
(4)
Date Filed:

TABLE OF CONTENTS
NORTHWEST BIOTHERAPEUTICS, INC.
NOTICE OF THE ANNUAL MEETING OF STOCKHOLDERS
TO BE HELD ON JANUARY 21, 2018APRIL 18, 2020
Dear Stockholder:
You are hereby cordially invited to attend the 2017 Annual Meeting of Stockholders (the “Annual Meeting”) of Northwest Biotherapeutics, Inc., (the “Company”), which will be held on January 21, 2018April 18, 2020 at 1:3000 p.m. (local time) at the offices of Gibson, Dunn & Crutcher LLP, 1050 Connecticut Avenue NW, Washington, DC 20036,(Eastern Time), and any adjournments or postponements of the Annual Meeting. Due to the emerging public health impact of the coronavirus outbreak (COVID-19), and to support the health and well-being of our employees, stockholders and community, the Annual Meeting of Stockholders will be held online and not in person. To make this meeting format as efficient as possible, we ask and encourage all stockholders to vote their proxy prior to the meeting either by phone, online or by proxy card.
To follow the Annual Meeting audio, registered stockholders will need to log on to a special Annual Meeting website described in your proxy. The website is www.meetingcenter.io/227204437, and the password is NWBO2020. Registered stockholders may vote prior to or during the meeting. As distinguished from registered stockholders, a beneficial stockholder whose shares are held through an intermediary has two voting options: The first voting option is to vote prior to the meeting through their bank, broker or proxy solicitor. The second voting option is to fill out the Voter Information Form (VIF) included in the proxy materials, submit the VIF to Broadridge, receive a legal proxy from Broadridge and then submit such proxy to Computershare before Tuesday, April 14, 2020. We recommend the first voting option as much easier and more efficient than the second voting option. All stockholders may also vote when contacted by the Company’s proxy solicitation agent, Georgeson LLC. Beneficial stockholders who have voted before the meeting, may listen to the meeting by logging into the meeting link provided above and clicking on the guest registration tab. This proxy statement provides more details and numbers to call with any questions concerning all of these procedures occasioned by the current requirement to avoid an in person meeting. The Company also stands ready to help in any way.
We are holding the Annual Meeting for the following purposes:
1.
To elect one membertwo members to our Board of Directors to serve as Class II directorI Directors for a term of three years;
2.
To hold an advisory vote on executive compensation;
3.
To ratify the appointment of Marcum LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2017;2020;
3.
To hold an advisory vote on the frequency with which future advisory votes to approve executive compensation should be held; and
4.
To act upon such other matters as may properly come before the meeting or any adjournmentadjournments or postponements thereof.
These matters are more fully described in the attached proxy statement (the “Proxy Statement”), which is made a part of this notice. At this point, we are not aware of any other business to be transacted at this Annual Meeting.
Only stockholders of record on our books at the close of business on January 9, 2018February 21, 2020 will be entitled to vote at the Annual Meeting and any adjournments or postponements of the Annual Meeting. For 10 days prior
The items to be considered are summarized in this Notice of the Annual Meeting a list of stockholders entitledStockholders and more fully described in the Proxy Statement. The Notice of the Annual Meeting of Stockholders, the Proxy Statement and the enclosed proxy card are first being mailed and made available starting on or about March 30, 2020 to voteall record holders of shares of our common stock as of the close of business on February 21, 2020. Shares of our common stock represented by proxies will be available for inspection at our principal executive offices located at 4800 Montgomery Lane, Suite 800, Bethesda, Maryland 20814. This list also will be available for inspection atvoted as described in the Annual Meeting. If you would like to view the stockholder list, please call our executive offices at (240) 497-9024 to schedule an appointment.Proxy Statement or as specified by each stockholder.
A copy of our Annual Report on Form 10-K as amended, for the fiscal year ended December 31, 20162019 (the “2019 Annual Report”), which contains our consolidated financial statements for the fiscal year ended December 31, 2016,2019, and other information of interest to stockholders, accompanies this notice and the attached proxy statement.Proxy Statement. This notice, the attached proxy statementProxy Statement and our 20162019 Annual Report on Form 10-K for the fiscal year ended December 31, 2016 isare also available, free of charge, in PDF and HTML format at http://www.edocumentview.com/NWBO and will remain posted on this website at least until the conclusion of the meeting.

TABLE OF CONTENTS
If you have any questions or need assistance voting your shares, please contact our proxy solicitation agent, Okapi PartnersGeorgeson LLC:
1290 Avenue of the Americas, 9th Floor
New York, NY 10104
Stockholders, Banks and Brokers Call Toll-Free (877) 566-1922
Or via Email at info@okapipartners.com(866) 821-2550
Monday through Friday, 9:00 AM EDT – 11:00 PM EDT
Saturday, 12:00 PM EDT – 6:00 PM New York City TimeEDT
By Order of the Board of Directors,
/s/ Linda F. Powers
Chairperson of the Board of Directors
January 9, 2018March 27, 2020
WHETHER OR NOT YOU PLAN TO ATTEND THE ANNUAL MEETING, PLEASE PROMPTLY VOTE ONLINE, BY PHONE, OR COMPLETE, SIGN, DATE AND RETURN THE ENCLOSED PROXY CARD IN THE ACCOMPANYING ENVELOPE. NO POSTAGE NEED BE AFFIXED IF THE PROXY CARD IS MAILED IN THE UNITED STATES.
IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR
THE MEETING TO BE HELD ON APRIL 18, 2020:
The Notice of Annual Meeting and Proxy Statement and 2019 Annual Report is available at:
http://www.edocumentview.com/NWBO

TABLE OF CONTENTS
TABLE OF CONTENTS
1
4
7
8
9
11
14
15
1920
2021
22
i

TABLE OF CONTENTS
NORTHWEST BIOTHERAPEUTICS, INC.
4800 Montgomery Lane
Suite 800
Bethesda, Maryland 20814
PROXY STATEMENT
FOR THE ANNUAL MEETING OF STOCKHOLDERS
TO BE HELD ON JANUARY 21, 2018APRIL 18, 2020
This proxy statement is being furnished in connection with the solicitation of proxies by the Board of Directors of Northwest Biotherapeutics, Inc. (“we,” “us,” “our” or the “Company”), for use at the 2017 Annual Meeting of Stockholders (the “Annual Meeting”), to be held on January 21, 2018April 18, 2020 at 1:3000 p.m. (local time) at the law firm of Gibson, Dunn & Crutcher LLP, 1050 Connecticut Avenue NW, Washington, DC 20036,(Eastern Time), and any adjournments or postponements of the Annual Meeting. Due to the emerging public health impact of the coronavirus outbreak (COVID-19), and to support the health and well-being of our employees, stockholders and community, the Annual Meeting of Stockholders will be held online and not in person. To make this meeting format as efficient as possible, we ask and encourage all stockholders to vote their proxy prior to the meeting either by phone, online or by proxy card.
To follow the Annual Meeting audio, registered stockholders will need to log on to a special Annual Meeting website described in your proxy. The website is www.meetingcenter.io/227204437, and the password is NWBO2020. Registered stockholders may vote prior to or during the meeting. As distinguished from registered stockholders, a beneficial stockholder whose shares are held through an intermediary has two voting options: The first voting option is to vote prior to the meeting through their bank, broker or proxy solicitor. The second voting option is to fill out the Voter Information Form (VIF) included in the proxy materials, submit the VIF to Broadridge, receive a legal proxy from Broadridge and then submit such proxy to Computershare before Tuesday, April 14, 2020. We recommend the first voting option as much easier and more efficient than the second voting option. All stockholders may also vote when contacted by the Company’s proxy solicitation agent, Georgeson LLC. Beneficial stockholders who have voted before the meeting, may listen to the meeting by logging into the meeting link provided above and clicking on the guest registration tab. This proxy statement provides more details and numbers to call with any questions concerning all of these procedures occasioned by the current requirement to avoid an in person meeting. The Company also stands ready to help in any way.
The Board of Directors, or the Board,“Board,” is soliciting proxies for the purposes set forth in the accompanying Notice of the Annual Meeting of Stockholders.
Record Date and Share Ownership
Only stockholders of record on our books at the close of business on January 9, 2018February 21, 2020 will be entitled to vote at the Annual Meeting and any adjournments or postponements of the Annual Meeting. As of the close of business on January 9, 2018,February 21, 2020, we had 329,711,560630,252,281 shares of common stock outstanding 9,825,883and no shares of Series A Preferred Stock outstanding (the “Series A Preferred”) and 5,581,944 shares of Series B Preferred Stock outstanding (the “Series B Preferred”, and with the Series A Preferred, the “preferred stock”).preferred stock outstanding. Each share of common stock entitles the record holder to one vote on each matter to be voted upon at the Annual Meeting. Each share of preferred stock entitles the record holder to ten votes on each matter to be voted upon at the Annual Meeting. Copies of the Notice of the Annual Meeting of Stockholders, this proxy statement, the enclosed proxy card and our Annual Report on Form 10-K as amended, for the fiscal year ended December 31, 2016,2019 (the “2019 Annual Report”) will be mailed to stockholders of record on or about January 10, 2018.March 30, 2020. Exhibits to the 2019 Annual Report will be provided to any stockholder at no charge upon written or oral request to our corporate secretary at the address set forth under “CommunicationCommunication with the Board of Directors”Directors below.
Attending the Online Annual Meeting and Voting in Person
If you plan to attendDuring the Annual Meeting and vote in person, we will provide a ballot to you when you arrive. However, if you hold your shares
To participate in the name of a broker, bank or other nominee,online Annual Meeting, registered stockholders will need the 16-digit control number included on the enclosed proxy card. The Annual Meeting will begin promptly at 1:00 p.m., Eastern Time. We encourage you must bringto access the meeting prior to the start time to allow ample time for the check-in procedures.
1

TABLE OF CONTENTS
While the website for the meeting will have an account statement or letter from the nominee indicating that you were the beneficial owner of the shares on January 9, 2018, the record dateoption for voting. If you plan to vote in personvoting at the meeting, please bring valid identification. Even if you currently plan to attendtime of the meeting, we recommend that you also submit yourask and encourage all stockholders to vote their proxy as described below so that your vote will be counted if you later decide notprior to attend the meeting.meeting either by phone, online or proxy card.
Voting by Proxy
Shares represented by a properly executed proxy in the form that accompanies this proxy statement will be voted at the Annual Meeting and, if you provide instructions on the proxy, will be voted in accordance with those instructions. If you hold shares in your own name, you may vote by proxy online, by telephone using the toll-free number listed on the enclosed proxy card, or by marking, dating, signing and mailing the enclosed proxy card in the prepaid envelope provided. If you vote online or by telephone, please do not also mail the enclosed proxy card. If you do notreturn your proxy to the Company, but fail to provide instructions with your proxy as to how your shares should be voted, your shares will be voted according to the recommendations of our Board as follows:

FOR the election of Jerry Jasinowski,Dr. Alton L. Boynton and Ambassador J. Cofer Black, as Class II Director;

FOR, on an advisory basis, the Company’s executive compensation; andI Directors;

FOR the ratification of the appointment of Marcum LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2017.
2020; and
1


TABLE OF CONTENTSFOR, on an advisory basis, every three years as the frequency with which stockholders are provided an advisory vote to approve executive compensation.
If other matters come before the Annual Meeting, the persons named as proxyproxies will vote on such matters in accordance with his or hertheir best judgment. We have not received any notice of other matters that may properly be presented at the Annual Meeting. We bear the expense of soliciting proxies. Our directors, officers or employees may also solicit proxies personally or by telephone, email, facsimile or other means of communication. We do not intend to pay additional compensation for doing so. The Company has retained Georgeson LLC to solicit proxies for the Annual Meeting, and may use the services of other third-parties to solicit proxies for the Annual Meeting (in which case the Company may also compensate such other third-parties for services rendered). We might reimburse banks, brokerage firms and other custodians, nominees and fiduciaries representing beneficial owners of our common stock for their expenses in forwarding soliciting materials to those beneficial owners.
Revoking a Proxy
You may revoke your proxy at any time prior to the start of the Annual Meeting by delivering written instructions to our corporate secretary at the address set forth under “CommunicationCommunication with the Board of Directors” Directorsbelow. Attendance online at the Annual Meeting will not itself be deemed to revoke your proxy unless you give notice atvote online during the Annual Meeting that you intend to revoke your proxy and vote in person.Meeting. If you are a beneficial owner of shares of common stock held in “street name,” you may submit new voting instructions by contacting your broker, bank or other nominee.
Quorum Required
A quorum of stockholders is necessary to hold a valid meeting.meeting of stockholders. A majority of shares entitled to vote generally in the election of directors at the Annual Meeting which are present in persononline at the Annual Meeting or represented by proxy shall constitute a quorum at the Annual Meeting. Shares which abstain from voting on a particular matter and “broker non-votes,” or shares held in “street name” by brokers, banks or other nominees who indicate on their proxies that they do not have discretionary authority to vote such shares on a particular matter, are counted for purposes of determining whether a quorum exists.
Votes Required for Approval; Broker Non-Votes
Each holder of common stock is entitled to one vote for each share of common stock held on all matters to be voted on at the Annual Meeting. Each holderAs of preferredFebruary 21, 2020, there were 630,252,281 shares of our common stock isoutstanding and entitled to ten votes for each share of preferred stock held on all matters to be voted onvote at the Annual Meeting. As of January 9, 2018,February 21, 2020, there were 329,711,560no shares of our common stock and 15,407,827 shares of our preferred stock outstanding and entitled to vote at the Annual Meeting. With respect to “routine” matters, such as
2

TABLE OF CONTENTS
For Proposal No. 1, the ratificationdirectors will be elected by a plurality of all votes properly cast online, by telephone or proxy, at the Annual Meeting, assuming a quorum is present. For Proposal No. 2, the affirmative vote of a majority of the selectionvotes cast at the meeting is required to ratify the appointment of Marcum as our independent registered public accounting firm for the fiscal year ending December 31, 2020. For Proposal No. 3, the frequency receiving the greatest number of votes cast at the meeting (i.e., receiving a plurality of the votes cast at the Annual Meeting) shall be deemed the recommendation of the stockholders for the frequency of future advisory votes to approve executive compensation.
With respect to “routine” matters, a bank, brokerage firm, or other nominee has the authority (but is not required), to vote its clients’ shares if the clients do not provide instructions. When a bank, brokerage firm, or other nominee votes its clients’ shares on routine matters without receiving voting instructions, these shares are counted both for establishing a quorum to conduct business at the meeting and in determining the number of shares voted “for,” “against” or “abstaining” with respect to such routine matters. Proposal No. 2, the ratification of the selection of our independent registered public accounting firm, is the only “routine” matter that is being presented at the Annual Meeting.
With respect to “non-routine” matters, such as the election of directors, a bank, brokerage firm, or other nominee is not permitted under the rules governing self-regulatory organizations, or SRO rules, to vote its clients’ shares if the clients do not provide instructions. The bank, brokerage firm, or other nominee will so note on the voting instruction form and this constitutes a “broker non-vote.” “Broker non-votes” will be counted for purposes of establishing a quorum to conduct business at the Annual Meeting, but not for determining the number of shares voted “for,” “against,” “abstaining” or “withheld from” with respect to such non-routine matters.
Proxy Solicitation
The Company has retained the services of Okapi PartnersGeorgeson LLC, and may retain the services of other third-parties, to solicit the proxies of certain stockholders for the Annual Meeting. The cost of such services to be rendered by Georgeson LLC is estimated to be $9,000.00,$40,000, plus reimbursement of reasonable out-of-pocket expenses. In addition, certain of the Company’s officers and employees (who will receive no extra compensation for their services) may solicit proxies.
Householding
Stockholders of record who reside at the same address will receive a single copy of our 2019 Annual Report, Proxy Statement and Notice of the Annual Meeting. Each stockholder in the household, however, will receive a separate proxy card. This process, known as “householding,” reduces the volume of duplicate information
2

TABLE OF CONTENTS
received at your household and helps to reduce our expenses. If you would like to receive a separate copy of any of these materials, please call or write us at the address set forth under Communication with the Board of Directors” Directorsbelow, and we will promptly deliver the requested materials to you.
If you receive multiple copies of our 2019 Annual Report, Proxy Statement and Notice of the Annual Meeting and wish to receive a single copy in the future, please contact us at the address set forth under Communication with the Board of Directors”Directors below.” below, and we will modify our future mailings in accordance with your request. If you hold your shares in street“street name, you should contact your broker or nominee regarding combining mailings.
3

TABLE OF CONTENTS
PROPOSAL NO. 1 — ELECTION OF DIRECTORDIRECTORS
Directors and NomineeNominees for Director
We have a classified Board of Directors currently consisting of two Class I directorsDirectors (Dr. Alton L. Boynton and Ambassador J. Cofer Black), one Class II director (JerryDirector (Mr. Jerry Jasinowski), and two Class III directors (LindaDirectors (Ms. Linda F. Powers and Dr. Navid Malik). Mr. Jasinowski was appointedDr. Alton L. Boynton and Ambassador J. Cofer Black were elected in December 20142016 as a Class II DirectorI Directors to serve for a three-year term that expires at the approximately three-year term.Annual Meeting.
At each annual meeting of stockholders, the applicable Class directors are elected to succeed those whose terms are expiring. This year, onetwo Class II directorI Directors will be presented to the stockholders for election to a three-year term that expires at the 2020 Annual Meeting.term. The Class III directors haveII Director was elected to a three-year term that expires at thein January 2018 Annual Meeting and the Class I directors haveIII Directors were elected to a three-year term that expires at the 2019 Annual Meeting.in February 2019.
The persons named in the enclosed proxy will vote to elect Mr. JasinowskiDr. Alton L. Boynton and Ambassador J. Cofer Black as Class II directorI Directors unless your proxy is marked otherwise. Mr. Jasinowski hasDr. Boynton and Ambassador Black have indicated histheir willingness to serve, if elected. If Mr. Jasinowskieither should be unable to serve, the person acting under the proxy may vote the proxy for a substitute nominee. We have no reason to believe that Mr. JasinowskiDr. Boynton and Ambassador Black will be unable to serve if elected.
Set forth below is the name and age of each member of our Board (including Mr. Jerry Jasinowski,Dr. Boynton and Ambassador Black, the nomineenominees for election as Class II director)I Directors), and the positions and offices held by him or her, his or her principal occupation and business experience during at least the past five years, the names of other publicly held companies of which he or she serves as a director and the year of the commencement of his or her term as a member of our Board.
Vote Required for Approval
Directors are elected by a plurality of the votes cast at the Annual Meeting. This means that the Class II nomineeI nominees receiving the highest number of votes cast will be elected.
Voting by the Proxies
The proxies will vote your shares of common stock in accordance with your instructions. If you are a stockholder of record, and you return a signed and dated proxy card, unless you mark your proxy card to withhold authority to vote, your common stock will be voted for the election of the nomineenominees named in this proxy statement.
If you are a beneficial owner of shares of common stock held in street name and you do not provide your broker with voting instructions, under the SRO rules governing brokers, your broker may not vote your shares on the election of directors.
Recommendation
We recommend that you vote FORMr. Jerry Jasinowski Dr. Alton L. Boynton and Ambassador J. Cofer Black as Class II director.I Directors.
Family Relationships
There are no family relationships between any of our directors or executive officers.
4

TABLE OF CONTENTS
Directors
Information with respect to the number of shares of common stock beneficially owned by each director, directly or indirectly, as of January 9, 2018March 25, 2020 appears below under the heading “SecuritySecurity Ownership of Certain Beneficial Owners and Management.
NameAgePosition
Linda F. Powers6264Class III Director, Chairperson, President and Chief Executive Officer
J. Cofer Black70Class I Director
Dr. Alton L. Boynton7375Class I Director, Chief Scientific Officer
J. Cofer BlackJerry Jasinowski6781Class III Director
Dr. Navid Malik4851Class III Director
Jerry Jasinowski78Class II Director
Director Biographies
Linda F. Powers.   Ms. Powers has served as the Chairperson of our Board of Directors since her appointment on May 17, 2007 and Chief Executive Officer and President since June 8, 2011. Ms. Powers served as a managing director of Toucan Capital Fund II from 2001 to 2010, and Toucan Capital Fund III thereafter. She also has over 15 years’ experience in corporate finance and restructurings, mergers and acquisitions, joint ventures and intellectual property licensing. Ms. Powers is or was previously a Board member of the Rosalind Franklin Society, M2GEN (an affiliate of Moffitt Cancer Center), and the Chinese Biopharmaceutical Association, and the Rosalind Franklin Society.Association. She was the Chair of the Maryland Stem Cell Research Commission for the first two years of the state’s stem cell funding program, and has served an additional eighteleven years on the Commission. Ms. Powers served for several years on a Steering Committee of the National Academy of Sciences, evaluating government research funding, and has beenwas appointed to three Governors’ commissions created to determine how to build the respective states’ biotech and other high-tech industries. For more than six years, Ms. Powers taught an annual internal course at the National Institutes of Health for the bench scientists and technology transfer personnel on the development and commercialization of medical products. Ms. Powers serves on the boards of several private biotechnology companies. Ms. Powers holds a B.A. from Princeton University, where she graduated magna cum laude and Phi Beta Kappa. She also earned a J.D., magna cum laude, from Harvard Law School. We believe Ms. Powers’ background and experience make her well qualified to serve as a Director.
J. Cofer Black.   Ambassador Black was appointed to the Board of Directors in January 2016. Ambassador Black is an internationally renowned U.S. government leader and expert in cybersecurity, counterterrorism and national security. Since 2009, he has served as Vice President for Global Operations at Blackbird Raytheon Technologies, a division of Raytheon Company, a NYSE-listed security company. From 2004 until 2008, he provided strategic guidance and business development as Vice Chairman of Blackwater Worldwide and as Chairman of Total Intelligence Solutions. During 2002 – 2005, he was appointed by the President of the United States to serve as the Ambassador, Coordinator for Counterterrorism, reporting directly to the Secretary of State for developing, coordinating and implementing American counterterrorism policy. Prior to his role as Ambassador, he served a 28-year career in the Central Intelligence Agency, reaching Senior Intelligence Service (SIS-4) level as Director, Counterterrorist Center (D/CTC), where he managed 1,300 professional personnel and an annual operational budget of more than one billion dollars. Ambassador Black is experienced representing the United States at the Head of State level, managing media as a diplomatic spokesperson and in public speaking as keynote speaker both as a senior U.S. Government official and business leader. Ambassador Black has received numerous awards and recognitions throughout his career, including the Distinguished Intelligence Medal (the CIA’s highest award for achievement). Ambassador Black received a B.A. in International Affairs from the University of Southern California in 1973 and an M.A. in International Affairs from the University of Southern California in 1974. We believe Ambassador Black’s background and experience make him well qualified to serve as a Director.
Alton L. Boynton, Ph.D.   Dr. Boynton co-founded our Company, has served as our Chief Scientific Officer and a Director since our inception in 1998, was appointed our Chief Operating Officer in August 2001, was appointed President in May 2003, and served as Chief Executive Officer from June 2007
5

TABLE OF CONTENTS
to June 2011. Prior to founding our Company, Dr. Boynton headed the Molecular Oncology research lab at the Pacific Northwest Research Foundation (the original foundation of Bill Hutchinson, from which the Fred Hutchinson Cancer Center was spun off). Dr. Boynton also served as Director of the Department of Molecular Medicine of Northwest Hospital from 1995 to 2003 where he coordinated the establishment of a program centered on carcinogenesis. Prior to joining Northwest Hospital, Dr. Boynton was Associate Director of the Cancer Research Center of Hawaii, The University of Hawaii, where he also held the positions of Director of Molecular Oncology of the Cancer Research Center and Professor of Genetics and Molecular Biology. Dr. Boynton received his Ph.D. in Radiation Biology from the University of Iowa in 1972. We believe Dr. Boynton’s background and experience make him well qualified to serve as a Director.
Jerry Jasinowski.   Mr. Jasinowski was appointed to the Board of Directors in April 2012. Mr. Jasinowski retired in 2007. Mr. Jasinowski currently serves on the boards of directors of Procurian and the Washington Tennis and Education Foundation and has held directorships in several other companies since 1990. From 2004 through 2007, Mr. Jasinowski served as the President of the Manufacturing Institute, an organization dedicated to improving and expanding manufacturing in the United States, of which he was a founder. Mr. Jasinowski was also the President and CEO of the National Association of Manufacturers, a trade association with 13,000 corporate members from 1990 to 2004. Mr. Jasinowski holds an A.B. in Economics from Indiana University and an M.A. in Economics from Columbia University. We believe that Mr. Jasinowski’s extensive experience across a wide range of manufacturing, technology, and financial firms, including Fortune 1000 and Fortune 500 companies, make him well qualified to serve as a Director.
5

TABLE OF CONTENTS
Dr. Navid Malik.   Dr. Malik was appointed to the Board of Directors in April 2012. Dr. Malik was previously the Head of Life Sciences Research at Cenkos Securities Plc. in the U.K., an institutional stockbroking securities firm. From September 2011 through January 2012, Dr. Malik was the Head of Life Sciences Research at Sanlam (Merchant Securities), a global financial services firm. Dr. Malik was Partner and Head of Life Sciences at Matrix Investment Banking Division, Matrix Group, a financial services firm in London, from December 2008 through September 2011. Dr. Malik was a Senior Pharmaceuticals and Biotechnology Analyst at Wimmer Financial LLP from September 2008 through December 2008, and was the Senior Life Sciences Analyst at Collins Stewart Plc from January 2005 through September 2008. In 2011, Dr. Malik was awarded two StarMine Awards (awarded each year by Thomson Reuters and the Financial Times): Number One Stock Picker in the European Pharmaceutical Sector, and Number Two Stock Picker in the U.K. and Ireland Healthcare Sector. Dr. Malik holds a Ph.D. in Drug Delivery within Pharmaceutical Sciences, as well as degrees in Biomedical Sciences Research (M.Sc.) and Biochemistry and Physiology (B.Sc., joint honors). Dr. Malik also holds an MBA in finance from the City University Business School, London. We believe that Dr. Malik’s extensive experience in the life sciences fields and investment banking sector make him well qualified to serve as a Director.
J. Cofer Black. Ambassador Black was appointed to the Board of Directors in January 2016. Ambassador Black is an internationally renowned U.S. government leader and expert in cybersecurity, counterterrorism and national security. Since 2009, he has served as Vice President for Global Operations at Blackbird Raytheon Technologies, a division of Raytheon Company, a NYSE-listed security company. From 2004 until 2008, he provided strategic guidance and business development as Vice Chairman of Blackwater Worldwide and as Chairman of Total Intelligence Solutions. During 2002–2005, he was appointed by the President of the United States to serve as the Ambassador, Coordinator for Counterterrorism, reporting directly to the Secretary of State for developing, coordinating and implementing American counterterrorism policy. Prior to his role as Ambassador, he served a 28-year career in the Central Intelligence Agency, reaching Senior Intelligence Service (SIS-4) level as Director, Counterterrorist Center (D/CTC), where he managed 1,300 professional personnel and an annual operational budget of more than one billion dollars. Ambassador Black is experienced representing the United States at the Head of State level, managing media as a diplomatic spokesperson and in public speaking as keynote speaker both as a senior U.S. Government official and business leader. Ambassador Black has received numerous awards and recognitions throughout his career, including the Distinguished Intelligence Medal (the CIA’s highest award for achievement). Ambassador Black received a B.A. in International Affairs from the University of Southern California in 1973 and an M.A. in International Affairs from the University of Southern California in 1974. We believe Ambassador Black’s background and experience make him well qualified to serve as a Director.
6

TABLE OF CONTENTS
PROPOSAL NO. 2 — ADVISORY VOTE ON EXECUTIVE COMPENSATION
As required under the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, or Dodd-Frank Act, the Board of Directors is submitting a “say on pay” proposal for stockholder consideration. While the vote on executive compensation is nonbinding and solely advisory in nature, the Board and the Compensation Committee value the opinion of our stockholders and will review and consider the voting results.
Our executive officers are compensated based on performance, and in a manner consistent with our strategy, competitive practice, sound corporate governance principles, and Company and stockholder interests. We believe our compensation program is strongly aligned with the long-term interests of the Company and our stockholders. Compensation of our executive officers is designed to enable us to attract and retain talented and experienced senior executives to lead our Company successfully in a competitive environment.
The compensation of the “Named Executive Officers” (as defined in Item 402(a)(3) of Regulation S-K) is described on pages 16-18 of this proxy statement.
We are asking stockholders to vote on the following resolution:
RESOLVED, that the stockholders of Northwest Biotherapeutics, Inc. approve, on an advisory basis, the compensation paid to the Named Executive Officers as disclosed pursuant to Item 402 of Regulation S-K, including the Summary Compensation Table for fiscal year 2017, and the other related tables and disclosures.”
As indicated above, the stockholder vote on this resolution will not be binding on our Company or the Board of Directors, and will not be construed as overruling or determining any decision by us or by the Board. The vote will not be construed to create or imply any change to our fiduciary duties or those of the Board, or to create or imply any additional fiduciary duties for our Company or the Board.
Vote Required
The affirmative vote of the holders of a majority of the shares of our common stock present or represented and entitled to vote at the meeting is required to approve the compensation of our Named Executive Officers, as disclosed in this proxy statement.
Recommendation
The Board of Directors unanimously recommends stockholders vote, on an advisory basis, FOR the Company’s 2017 executive compensation.
7

TABLE OF CONTENTS
PROPOSAL NO. 3 — RATIFICATION OF APPOINTMENT OF INDEPENDENT
REGISTERED PUBLIC ACCOUNTING FIRM
Pursuant to its charter, the Audit Committee of our Board has appointed the firm Marcum LLP (“Marcum”), to serve as our independent registered public accounting firm for the fiscal year ending December 31, 2017.2020. Marcum served as our independent registered public accounting firm for the fiscal year ended December 31, 2016.2019. While the Audit Committee is solely responsible for the appointment, compensation, retention and oversight of the independent registered public accounting firm, the Committee and the Board are requesting that the stockholders ratify this appointment.appointment for the fiscal year ending December 31, 2020. If the stockholders ratify this appointment, the Audit Committee, in its discretion, may appoint a different independent registered public accounting firm at any time if it believes that doing so would be in the best interests of our Company. If the stockholders do not ratify this appointment, the Audit Committee may reconsider, but might not change, its appointment. If the stockholders do ratify this appointment, the Audit Committee may nevertheless decide to change our accounting firm.
Representatives of Marcum are not expected to be present at the Annual Meeting of Stockholders.Meeting.
Vote Required for Approval
Ratification of the appointment of Marcum as our independent registered public accounting firm requires the affirmative vote of a majority of the votes cast at the meeting.Annual Meeting.
Voting by the Proxies
The proxies will vote your shares of common stock in accordance with your instructions. If you are a stockholder of record and you return a signed and dated proxy card, unless you give specific instructions to the contrary, your shares of common stock will be voted for the ratification of the appointment of Marcum as our independent registered public accounting firm for the fiscal year ending December 31, 2017.2020.
Recommendation
The Board unanimously recommends that you vote FOR the ratification of the appointment of Marcum as our independent registered public accounting firm for the fiscal year ending December 31, 2017.2020.
7

TABLE OF CONTENTS
PROPOSAL NO. 3 — ADVISORY VOTE REGARDING THE FREQUENCY OF FUTURE ADVISORY VOTES TO APPROVE EXECUTIVE COMPENSATION
In accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and more specifically, Section 14A of the Exchange Act which was added under the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”), we are required to seek a nonbinding advisory stockholder vote regarding the frequency of submission to stockholders of a “say on pay” advisory vote to approve executive compensation. The Dodd-Frank Act specifies that stockholders be given the opportunity to vote on our executive compensation programs either every three years, every two years, or every year. Although this vote is advisory and nonbinding, the Board of Directors will review voting results and give consideration to the outcome of such voting.
In accordance with the stockholders’ recommendation at the Company’s annual meeting of stockholders held in 2014, the current frequency of the advisory vote of stockholders to approve executive compensation is once every three years. Unless the Board of Directors modifies its policy regarding the frequency of future “say on pay” advisory votes, the next such advisory vote will occur at the Company’s next annual meeting of stockholders, which is expected to be held in 2021.
Our Company is a clinical stage company involved in multiple clinical trials, which involve multi-year activities. Accordingly, as indicated below, the Board recommends that you vote in favor of holding an advisory vote to approve our executive compensation program once every three years.
Stockholders will be able to specify one of four choices for this proposal on the proxy card: three years, two years, one year, or abstain from voting.
As indicated above, the stockholder vote on the frequency of future nonbinding stockholder votes to approve executive compensation will not be binding on our Company or the Board of Directors, and will not be construed as overruling or determining any decision by us or the Board. The vote will not be construed to create or imply any change to our Company’s fiduciary duties or those of the Board, or to create or imply any additional fiduciary duties for our Company or the Board. Notwithstanding the foregoing, the Board will review the results of this proposal and consider such results in determining the frequency on which to hold future “say on pay” advisory votes.
Vote Required for Approval
The frequency — every three years, two years or one year — receiving the greatest number of votes cast (i.e., receiving a plurality of the votes cast at the Annual Meeting) shall be deemed the recommendation of the stockholders for the frequency of future advisory votes to approve executive compensation.
Voting by the Proxies
The proxies will vote your shares of common stock in accordance with your instructions. If you are a stockholder of record, and you return a signed and dated proxy card, unless you mark your proxy card to withhold authority to vote, your common stock will be voted for the option of every three years as the frequency with which stockholders are provided an advisory vote to approve executive compensation.
Recommendation
We recommend that you vote FOR the option of every three years as the frequency with which stockholders are provided an advisory vote to approve executive compensation, as disclosed pursuant to the compensation disclosure rules of the Securities and Exchange Commission (the “SEC”).
8

TABLE OF CONTENTS
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
The following table presents information regarding the beneficial ownership of our common stock as of January 9, 2018March 25, 2020 by:

each person, or group of affiliated persons, who is known by us to own beneficially orown more than 5% of any class of our equity securities;

our directors and nominees for director;

each of our “Named Executive Officers,”named executive officers, as defined in Item 402(a)(3) of Regulation S-K; and

our directors and executive officers as a group.
Shares of common stock beneficially owned and the respective percentages of beneficial ownership of common stock assume the exercise of all options, warrants and other securities convertible into common stock beneficially owned by such person or entity currently exercisable or exercisable within 60 days of January 9, 2018.March 25, 2020. Shares issuable pursuant to the exercise of stock options and warrants exercisable withinon or prior to the date 60 days after March 25, 2020 are deemed outstanding and held by the holder of such options or warrants for computing the percentage of outstanding common stock beneficially owned by such person, but are not deemed outstanding for computing the percentage of outstanding common stock beneficially owned by any other person.
Except as indicated by the footnotes below, we believe, based on the information furnished to us, that the persons and the entities named in the table have sole voting and investment power with respect to all shares of common stock that they beneficially own, subject to applicable community property laws, if any. The table below is based upon the information supplied by our executive officers, directors and principal stockholderstransfer agent, Computershare Trust Company, N.A., the Company’s records and from Schedules 13D and 13G filed with the Securities and Exchange Commission (the “SEC”).SEC.
Except as otherwise noted, the address of the individuals in the following table is c/o Northwest Biotherapeutics, Inc., 4800 Montgomery Lane, Suite 800, Bethesda, MD 20814.
Name of Beneficial OwnerNumber of
Shares
Beneficially
Owned
Percentage(1)
Officers and Directors
Alton L. Boynton, Ph.D.(2)
2,280,808*%
Marnix L. Bosch, Ph.D., M.B.A.(3)
5,444,4941.6%
Linda F. Powers(4)
107,205,13525.6%
Leslie J. Goldman(5)
294,661*%
Dr. Navid Malik10,000*%
Jerry Jasinowski(6)
2,007,888*%
All executive officers and directors as a group (6 persons)35,822,57610.4%
5% Security Holders
Cognate BioServices, Inc.(7)
4600 East Shelby Drive
Suite 108, Memphis, TN
102,024,50524.4%
Woodford Investment Management LLP(8)
9400 Garsington Road
Oxford OX4 2NH, UK
24,815,0287.5%
CF Woodford Equity Income Fund(9)
40 Dukes Place
London EC3A 7NH, UK
18,316,6795.6%
9

TABLE OF CONTENTS
Name of Beneficial OwnerNumber of
Shares
Beneficially
Owned
Percentage(1)
Officers and Directors
Alton L. Boynton, Ph.D.(2)
11,034,9371.6%
Marnix L. Bosch, Ph.D., M.B.A.(3)
7,997,3791.2%
Linda F. Powers(4)
107,983,32914.6%
Leslie J. Goldman(5)
24,672,7423.6%
Dr. Navid Malik(6)
9,075,0001.4%
Jerry Jasinowski(7)
7,444,2041.1%
J. Cofer Black(8)
1,715,000*%
Jean M. Davis(9)
643,055*%
All executive officers and directors as a group (eight persons)170,565,64621.3%
*
Less than 1%.
(1)
Percentage represents beneficial ownership percentage of common stock calculated in accordance with SEC rules and does not equate to voting percentages. Based upon 328,857,140660,005,257 shares of common stock issued and outstanding as of January 3, 2017.March 25, 2020. Beneficial ownership is determined in accordance with the rules of the Securities and Exchange Commission.SEC. In computing the number of shares of common stock beneficially owned and the percentage of ownership of such person, we deemed to be outstanding all shares of common stock and preferred stock subject to options and warrants currently exercisable or convertible, or exercisable or convertible within 60 days of the filing date of this proxy statement.March 25, 2020. However, we did not deem such shares outstanding for the purpose of computing the percentage ownership of any other person.
9

TABLE OF CONTENTS
(2)
Consists of  (i) 12,189 shares of common stock held by Dr. Boynton and (ii) 2,268,61911,022,748 shares of common stock underlying options that are currently exercisable.
(3)
Consists of  (i) 9,802 shares of common stock held by Dr. Bosch and (ii) 5,434,6927,987,577 shares of common stock underlying options that are currently exercisable.
(4)
Consists of  (i) 1,572,20029,411,759 shares of common stock held by Ms. Powers;Powers, (ii) 804,145 shares of common stock held by Toucan Capital Fund III, L.P.; (iii) 2,211,784 shares of common stock held by Toucan Partners, LLC; (iv) 13,684,294 shares of common stock held by Cognate BioServices, Inc.; (v) 13,684,294 shares of common stock underlying warrants held by Cognate BioServices, Inc.; (vi) 2,941,176 shares of Series A Preferred Stock held by Cognate BioServices, Inc. and (vii) 5,200,865 shares of Series B Preferred Stock held by Cognate BioServices, Inc. Ms. Powers has voting and dispositive power over the securities owned by the Toucan entities and Cognate BioServices, Inc. Ms. Powers’ beneficial ownership excludes an aggregate of 81,420,410 warrants held by Cognate BioServices, Inc., subject to certain beneficial ownership limitations.
(5)
Consists of  (i) 172,742 shares held by Mr. Goldman, (ii) 28,38439,371,570 shares of common stock underlying currently exercisable warrants, and (iii) 93,53539,200,000 shares of common stock underlying currently exercisable options.
(5)
Consists of  (i) 172,742 shares of common stock held by Mr. Goldman and (ii) 24,500,000 shares of common stock underlying currently exercisable options.
(6)
Consists of  (i) 1,365,03110,000 shares of common stock held by Mr. JasinowskiDr. Malik and (ii) 642,8579,065,000 shares of common stock underlying currently exercisable warrants.options.
(7)
Consists of  (i) 13,684,2941,891,347 shares of common stock andheld by Mr. Jasinowski, (ii) 6,919,801652,857 shares of common stock underlying currently exercisable warrants. Linda Powers holds the votingwarrants, and dispositive power over the shares held by Cognate BioServices, Inc. Cognate’s beneficial ownership excludes an aggregate of 81,420,410 warrants owned by Cognate, subject to certain beneficial ownership limitations.
Cognate and the Company have entered into a voting agreement pursuant to which Cognate has agreed to vote its(iii) 4,900,000 shares of common stock and preferred stock owned during the term of such voting agreement, in accordance with the recommendations of the Company’s Board with respect to any amendment of the Company’s certificate of incorporation as the Board may deem necessary or appropriate to increase the Company’s authorized common stock or preferred stock.underlying currently exercisable options.
(8)
Upon information and belief, Neil Woodford holds the voting and dispositive power over theConsists of 1,715,000 shares of common stock underlying currently exercisable options held by Woodford Investment Management LLP.Ambassador Black.
(9)
CF Woodford Equity Income Fund beneficially owns 18,316,679Consists of 643,055 shares of common stock.stock underlying currently exercisable options held by Ms. Davis.
10

TABLE OF CONTENTS
CORPORATE GOVERNANCE MATTERS
Board Leadership Structure
The Board believes that Ms. Powers’ service as both Chairperson of the Board and Chief Executive Officer is in the Company’s best interest and our stockholders’ best interests. Ms. Powers possesses detailed and in-depth knowledge of the issues, opportunities and challenges facing us, and is thus, we believe, best positioned to develop Company strategies, business plans and priorities, and corresponding Board agendas that ensure that the Board’s time and attention are focused on the most critical matters. The Company has multiple major programs under way, with operations and infrastructure on two continents, which require heightened efficiency and involvement between the Board and management. Ms. Powers’ combined role enables decisive leadership, and, we believe, facilitates this efficiency and involvement. Our Board appointed lead independent director is Mr. Jerry Jasinowski.
Board of Directors’ Role in Risk Oversight
The Board plays an active role in risk oversight of our Company. The Board does not have a formal risk management committee, but administers this oversight function through various standing committees of the Board of Directors.Directors and/or through the full Board. The Audit Committee maintains responsibility for oversight of financial reporting-related risks, including those related to our accounting, auditing and financial reporting practices. The Audit Committee also reviews reports and considers any material allegations regarding potential violations of our Company’s Code of Conduct. The Compensation Committee oversees risks arising from our compensation policies and programs. This Committeeprograms and has responsibility for evaluating and approving our executive compensation and benefit plans, policies and programs. The Company also performed an enterprise-wide risk assessment as well as an enterprise-wide fraud risk assessment during 2019 and will update such assessments on an annual basis.
Director Independence
Our Board of Directors has undertaken a review of the independence of our directors and has determined that a majority of the Board consists of members who are currently “independent” as that term is defined within the meaning of Section 5605(a)(2) of the NASDAQ MarketplaceNasdaq Stock Market Rules. The Board of Directors has determined that each of Messrs. Malik and Jasinowski, and Ambassador Black to be independent.
Audit Committee
The Audit Committee has responsibility for recommending the appointment of our independent accountants, supervising our finance function (which includes, among other matters, our investment activities), reviewing our internal accounting control policies and procedures, and providing the Board such additional information and materials as it may deem necessary to make the Board aware of significant financial matters which require the attention of the Board. The Audit Committee discusses the financial statements with management, approves filings made with the SEC and maintains the necessary discussions with the Company’s independent accountants. The Audit Committee acts under a written charter.charter, which is posted on our website at www.nwbio.com/board-committee-charters/.
The Audit Committee currently consists of Messrs. Malik and Jasinowski. Our Board of Directors has determined that Jerry Jasinowski, the Chairman of the Audit Committee, qualifies as an “audit committee financial expert” as defined by the SEC. Our Board has undertaken a reviewdetermined that each member of the independence of our directors and has determined that Messrs. Malik and Jasinowski are independentAudit Committee is “independent” within the meaning of Section 5605(a)(2) of the NASDAQ MarketplaceNasdaq Stock Market Rules as well as pursuant to the additional test for independence for audit committee members imposed by SEC regulation and Section 5605(c)(2)(A) of the NASDAQ MarketplaceNasdaq Stock Market Rules. The Audit Committee is established in accordance with Section 3(a)(58)(A) of the Exchange Act.
Compensation Committee
The Compensation Committee is responsible for determining the overall compensation levels of our executive officers and administering our equity compensation plans. Ms. Powers, our Chairperson, PresidentThe Compensation Committee currently consists of Messrs. Malik and Chief Executive Officer, participated in discussions regarding salaries and incentive compensation for allJasinowski. Our Board of our executive officers, exceptDirectors has determined that she was and is excluded from discussionseach
11

TABLE OF CONTENTS
regarding her own salary and incentive compensation.member of the Compensation Committee is “independent” under the current listing standards of Nasdaq. The Board has adoptedCompensation Committee acts under a written charter, for the Compensation Committee, and its current members are Messrs. Malik and Jasinowski.which is posted on our website at www.nwbio.com/board-committee-charters/​. The Compensation Committee does not delegate its authority pursuant to its written charter.
Conflicts Committee
The Conflicts Committee is responsible for review and evaluation of related party matters including related party transactions. The Conflicts Committee currently consists of Ambassador Black, Mr. Jasinowski and Dr. Malik. Our Board of Directors has determined that alleach member of the membersConflicts Committee is “independent” within the meaning of Section 5605(a)(2) of the CompensationNasdaq Stock Market Rules. The Conflicts Committee are “independent”acts under the current listing standards of NASDAQ.a written charter, which is posted on our website at www.nwbio.com/board-committee-charters/​. The Conflicts Committee does not delegate its authority pursuant to its written charter.
Nominations Committee
The Nominations Committee is responsible for assisting the Board of Directors in, among other things, effecting Board organization, membership and function, including: identifying qualified Board nominees; and effecting the organization, membership and function of Board committees, including composition and recommendation of qualified candidates and reviewing the Company’s Corporate Governance Guidelines. The Nominations Committee shall identify and evaluate the qualifications of all candidates for nomination for election as directors. Potential nominees are identified by the Board of Directors based on the criteria, skills and qualifications that have been recognized by the Nominations Committee. While our nomination policy does not prescribe specific diversity standards, the Nominations Committee and its independent members seek to identify nominees who have a variety of perspectives, professional experience, education, difference in viewpoints and skills, and personal qualities that will result in a well-rounded Board of Directors. The Nominations Committee operates under a written charter. Given the size and ownership of the Company, the committee has a policy for consideration of director candidates recommended by shareholders.charter, which is posted on our website at www.nwbio.com/board-committee-charters/.
The Nominations Committee currently consists of Messrs. Malik and Jasinowski. The Board of Directors has determined that all of the memberseach member of the Nominations Committee areis “independent” under the current listing standards of NASDAQ.Nasdaq. The Board of Directors has adopted a written charter setting forth the authority and responsibilities of the Nominations Committee.
Special Committee
As previously reported, the Company appointed a Special Committee, and the Special Committee has undertaken an inquiry into the allegations of various lawsuits filed against the Company, and an anonymous internet report raising criticisms of the Company and its Board and management, including with respect to the reasonableness of the transactions with Cognate. The Committee has retained experts to help analyze some of these issues. Currently, the Special Committee is composed of independent Directors Mr. Jerry Jasinowski and Ambassador J. Cofer Black.
Information Regarding Meetings of the Board and Committees
The business of our Company is under the general oversight of our Board, as provided by the laws of Delaware and our bylaws. During the fiscal year ended December 31, 2016,2019, the Board held at least eighteen meetingsmet 14 times and also conducted business by written consent,consent. During the fiscal year ended December 31, 2019, the Audit Committee held at least four4 meetings, the Compensation Committee held at least4 meetings, the Conflicts Committee held one meeting and the Nominations Committee held at least threedid not hold any meetings. Each person who was a director during 20162019 attended at least 75% of the Board meetings and the meetings of the committee on which he or she served.meetings. We do not have a formal written policy with respect to Board members’ attendance at our annual meeting of stockholders. FiveAll five of our directors attended the 2016 Annual Meeting.our last annual meeting of stockholders.
Code of Conduct
We have an established Code of Conduct applicable to all Board members, executive officers and employees. We are in the process of updating ourOur Code of Conduct and will be posting the updated policyis posted on our website at www.nwbio.com.
NominationRecommendation of DirectorsDirector Candidates
The Nominations Committee is responsible for annually reviewing with the Board the requisite skills and criteria for prospective directors and the structure, size and composition of the Board as a whole. Although there are no set criteria considered by the Nominations Committee in evaluating potential director nominees, the committee does consider the skills and expertise that need to be represented on the Board, succession planning and the time commitments required of directors.
12

TABLE OF CONTENTS
For a stockholder to submit a candidate for the consideration of the Nominations Committee, the stockholder must timely notify our corporate secretary at the address set forth under “CommunicationCommunication with the Board of Directors”Directors below. To make such a nominationrecommendation in advance of the next year’s Annual Meeting, a stockholder must provide written notification to our corporate secretary not less than 120 days nor more than 150 days in advance of the first anniversary of the date on which the proxy statement in connection with the previous year’s Annual Meeting was first mailed. However, if we do not hold an annual meeting or the date of such annual meeting has been changed by more than 30 days from the date first contemplated by the previous year’s proxy statement, we must receive the stockholder’s notice at least 80 days prior to the date on which we distribute the proxy statement with respect to the upcoming meeting.
The notice must include the information specified in our bylaws, including the following: (a) as to each proposed nomineecandidate, (i) such person’s exact name, (ii) such person’s age, principal occupation, business address and telephone number, and residence address and telephone number, (iii) the number of shares (if any) of each class of our capital stock owned directly or indirectly by each such nominee, and (iv) any other information concerning the nominee that must be disclosed as to nominees in proxy solicitations pursuant to Regulation 14A under the Securities Exchange Act of 1934, as amended, or the Exchange Act (including such person’s notarized written acceptance of such nomination, consent to being named in the proxy statement as a nominee and statement of intention to serve as a director if elected); and (b) as to the stockholder giving the notice, (i) the name and address, as they appear in our records, of such stockholder;stockholder, (ii) such stockholder’s principal occupation, business address and telephone number, and residence address and telephone number, (iii) the class and number of our shares which are held of record or beneficially owned by such stockholder;stockholder, and (iv) the dates upon which such stockholder acquired such shares of stock and documentary support for any claims of beneficial ownership. In addition, notices must include a description of all arrangements or understandings between the stockholder giving the notice and each nominee and any other person or persons (naming such person or persons) pursuant to which the nomination or nominationnominations are to be made by such stockholder.
Communication with the Board of Directors
We have established a procedure by which our stockholders may communicate directly with our Board. All communications should be in written form and directed to our corporate secretary at the following address: Northwest Biotherapeutics, Inc., 4800 Montgomery Lane, Suite 800, Bethesda, Maryland 20814, Attention: Secretary, phone: (240) 497-9024.
13

TABLE OF CONTENTS
EXECUTIVE OFFICERS
The following table sets forth information regarding the Company’s current executive officers.
NameAgePosition
Linda F. Powers6264Class III Director, Chairperson, President and Chief Executive Officer
Alton L. Boynton, Ph.D.7375Class I Director, Chief Scientific Officer
Leslie J. Goldman7274Senior Vice President, Business DevelopmentGeneral Counsel
Marnix L. Bosch, Ph.D.5961Chief Technical Officer
Jean M. Davis48Chief Financial Officer, Chief Accounting Officer and Interim Chief Information Officer
Linda F. Powers. Please see Director Biographies”Biographies above.
Alton L. Boynton, Ph.D. Please see Director Biographies”Biographies above.
Leslie J. Goldman joined us in June 2011, and serves as Senior Vice President.President and General Counsel. In this capacity, Mr. Goldman has responsibility for legal matters, investor relations and financing activities. Prior to joining us, Mr. Goldman was a partner at the law firm of Skadden, Arps for over 30 years, specializing in a wide array of advanced technologies and their commercialization. Mr. Goldman also serves as an advisor to a number of other technology companies. In addition, for eight years, Mr. Goldman served as Chairman of the Board of a group of TV stations in four mid-size cities across the country. Mr. Goldman received a B.A. from the University of Michigan in 1967 and a J.D. from the University of Michigan in 1970.
Marnix L. Bosch, Ph.D. joined us in 2000, and serves as our Chief Technical Officer. In this capacity, Dr. Bosch plays a key role in the preparation and submission of our regulatory applications, as well as ongoing development of our product lines, and ongoing development and/or acquisition of new technologies. Dr. Bosch led the process of designing the protocols, and managed the successful preparation and submission of our Investigational New Drug (IND) applications for FDA approval to conduct clinical trials for prostate cancer, brain cancer, ovarian cancer and multiple other cancers. He also led the processes for other regulatory submissions in both the U.S. and abroad (including the successful applications for orphan drug status in both the U.S. and Europe for DCVax-L for brain cancer). He spearheaded the development of our manufacturing and quality control processes, and is working with Cognate BioServices, Inc. and Advent BioServices Ltd. on next-generation further development of these processes. Prior to joining us in 2000, Dr. Bosch worked at the Dutch National Institutes of Health (RIVM) as head of the Department of Molecular Biology, as well as in academia as a professor of Pathobiology. He has authored more than 40 peer-reviewed research publications in immunology and virology, and is an inventor ofon several patent applications on dendritic cell product manufacturing.
Jean M. Davis joined us in December 2019, and serves as our Chief Financial Officer, Chief Accounting Officer and Interim Chief Information Officer. Ms. Davis is a Certified Public Accountant, Certified Sarbanes-Oxley Expert, Certified Internal Auditor and Certified Project Management Professional. Ms. Davis brings to the Company over 24 years of experience assisting both national and multi-national, public and private companies with their finance and accounting functions, financial reporting, compliance with financial, industry-specific and federal regulations and related matters. Ms. Davis obtained her Master of Science in Business with a concentration in Finance and Accounting from Johns Hopkins University. Prior to joining the Company, Ms. Davis served as a Risk Advisory Senior Manager of BDO USA LLP, focused on assisting public national and multi-national companies to comply with Sarbanes-Oxley requirements and the remediation of identified internal control deficiencies. While at BDO in 2019, Ms. Davis assisted the Company with its SOX Section 404 evaluation of internal controls. From 2001 to 2018, Ms. Davis performed as an Audit Senior Manager and Project Manager at Cotton & Company LLP. Prior to Cotton & Company, Ms. Davis served as the Risk Management and Internal Audit Director at a public telecommunications company. Ms. Davis also worked previously at Deloitte & Touche LLP.
14

TABLE OF CONTENTS
EXECUTIVE COMPENSATION
Summary Compensation Table
The following table sets forth certain information concerning compensation paid or accrued to our executive officers, referred to as our Named Executive Officers, during the years ended December 31, 2017, 20162019 and 2015.2018.
Name and Principal PositionYearSalary
($)
Bonus
($)
Option
Awards
($)
Total
($)
Linda F. Powers
Chairperson, President & Chief Executive Officer
2017$502,000$   —$—   $502,000
2016$502,000$$—   $502,000
2015$500,000$$—   $500,000
Alton L. Boynton, Ph.D.
Chief Scientific Officer and Secretary
2017$325,000$$216,228$541,228
2016$325,000$$—   $325,000
2015$325,000$$—   $325,000
Leslie J. Goldman
Senior Vice President, Business Development
2017$375,000$$—   $375,000
2016$375,000$$—   $375,000
2015$375,000$$—   $375,000
Marnix L. Bosch, Ph.D.
Chief Technical Officer
2017$375,000$$504,532$879,532
2016$375,000$$—   $375,000
2015$375,000$$—   $375,000
Other
Susan Goldman*2017$120,000$$—   $120,000
2016$118,000$$—   $118,000
The dollar values listed in the table for option awards are a non-cash accounting measure (based on the Black Scholes formula, under which high volatility of share price contributes to high valuations) and do not constitute intrinsic or exercise value for the options. The options generally had no intrinsic or exercise value when they were awarded, and they currently still have limited intrinsic or exercise value.
The options were awarded at prices that were generally at or above the market price or the price paid by unrelated investors for the Company’s shares at the time of the award ($0.22 per share in 2019 and $0.23 or $0.25 per share in 2018). As such, the options have no meaningful value to the recipients unless and until the market price of the Company’s shares rises significantly above the exercise price of the options.
Name and Principal PositionYearSalary
($)
Bonus
(S)
Option
Awards
($)(1)
Total
($)
Linda F. Powers
Chairperson, President
& Chief Executive Officer
2019$502,000$100,000$$602,000
2018$502,000$$6,698,000$7,200,000
Alton L. Boynton, Ph.D.
Chief Scientific Officer and
Secretary
2019$325,000$20,000$$345,000
2018$325,000$$1,528,000$1,853,000
Leslie Goldman
Senior Vice President,
General Counsel
2019$375,000$67,000$$442,000
2018$375,000$$4,186,000$4,561,000
Marnix L. Bosch, Ph.D.(2)
Chief Technical Officer
2019$397,000$$$397,000
2018$375,000$$260,000$635,000
Jean M. Davis(3)
Chief Financial Officer, Chief
Accounting Officer and Interim Chief Information Officer
2019$16,000$$500,000$516,000
*(1)
Susan Goldman isRepresents the wifeaggregate grant date fair value of Leslie J. Goldman. She is a former nurse who serves as Directorstock options granted during the fiscal year, calculated in accordance with Accounting Standards Codification, 718, Compensation-Stock Compensation. Certain assumptions used to calculate the valuation of Patient Affairs, handling compassionate use cases. Mrs. Goldman was paid $120,000the awards are set forth in Management’s Discussion and $118,000 for the years ended December 31, 2017 and 2016, respectively, for services performed, respectively.Analysis in our 2019 Annual Report.
(2)
Dr. Bosch was relocated to our subsidiary in Netherlands effective August 1, 2019. His new annual salary is approximately $420,000 (EUR 375,000).
(3)
Ms. Davis’ annual salary is $265,000 effective December 9, 2019.
15

TABLE OF CONTENTS
Outstanding Equity Awards at Fiscal Year-End
The following table shows outstanding stock option awards classified as exercisable and un-exercisable as of December 31, 2017:2019:
Option AwardsStock Awards
NameNumber of
Securities
Underlying
Unexercised
Options (#)
Exercisable
Number of
Securities
Underlying
Unexercised
Options (#)
Unexercisable
Equity
Incentive
Plan
Awards:
Number of
Securities
Underlying
Unexercised
Unearned
Options (#)
Option
Exercise
Price
($)
Option
Expiration
Date
Number of
Shares or
Units of
Stock That
Have Not
Vested
(#)
Market
Value of
Shares or
Units of
Stock That
Have Not
Vested
($)
Equity
Incentive
Plan Awards:
Number of
Unearned
Shares,
Units or
Other Rights
That Have
Not Vested
(#)
Equity
Incentive
Plan 
Awards:
Market or
Payout
Value of
Unearned
Shares,
Units or
Other Rights
That Have
Not Vested
($)
Linda F. Powers
Chief Executive Officer and President
592,500(1)296,25010.566/21/2018
Alton Boynton
Chief Scientific Officer and Secretary
2,268,619(2)1,134,3160.256/13/2022
Leslie J. Goldman Senior Vice President, Business Development93,535(3)46,87510.566/21/2018
Marnix L. Bosch
Chief Technical Officer
5,293,451(4)2,646,7310.256/13/2022
15

TABLE OF CONTENTS
NameNumber of
Securities
Underlying
Unexercised
Options (#)
Exercisable
Number of
Securities
Underlying
Unexercised
Options (#)
Unexercisable
Option
Exercise
Price
($)
Option
Expiration
Date
Linda F. Powers
Chief Executive Officer and President
37,495,653(1)1,704,3470.235/28/2028
Alton Boynton
Chief Scientific Officer and Secretary

   
3,402,935(2)
0.256/13/2027
4,686,959(3)213,0410.235/28/2028
2,472,557(4)494,5080.238/31/2028
Leslie J. Goldman
Senior Vice President and General Counsel
23,434,776(5)1,065,2240.235/28/2028
Marnix L. Bosch
Chief Technical Officer

   
31,770(6)
21,35511.206/23/2022
15,625(7)8.808/20/2022
7,940,182(8)0.256/13/2027
Jean M. Davis
Chief Financial Officer, Chief Accounting Officer and
Interim Chief Information Officer
(9)3,000,0000.2212/9/2029
(1)
In conjunction with the employment agreement entered into between us and Ms. Powers on June 8, 2011, and in recognition of Ms. Powers’ service to our Company while serving as Chair during the preceding four years,On May 28, 2018, we granted 39,200,000 stock options to Ms. Powers an option to purchase 870,637 shares of our stock with an exercisePowers. The options are exercisable at a price of  $10.56$0.23 per share. One-thirdshare, and have a 10-year exercise period. 50% of the options vested on the grant date, and upon50% have been vesting becameover a 24-month period in equal monthly installments, provided that the recipient continues to be employed by the Company, subject to acceleration upon the occurrence of certain achievement milestones. During the year ended December 31, 2018, a lock-up which extendedperformance milestone was achieved and the Company accelerated vesting on 9,800,000 of the stock options granted to the earlier of 18 months or our reaching the primary endpoint of our Glioblastoma Multiforme (“GBM”) brain cancer clinical trial. One-thirdMs. Powers. The remaining unvested portions of the options vested in equal monthly portions over the termare subject to accelerated vesting upon (i) a change of effective control of the employment agreement. The remaining one-third will vestCompany, (ii) the filing of the first Biologics License Application or other application for product approval in portions tied to material milestonesany jurisdiction, (iii) completion of any randomized clinical trial that meets its endpoint(s) (Phase II or Phase III), (iv) a decision by the Board, in multiple programs, if and toits discretion or (v) the extent those milestones are achieved, or may vest indeath of the Board’s discretion.recipient.
(2)
On June 13, 2017, the Companywe granted 3,402,935 stock options to acquire shares of the Company’s common stock to Dr. Alton Boynton the Chief Scientific Officer of the Company. The options were granted pursuant tounder the Second Amended and Restated Northwest Biotherapeutics, Inc. 2007 Stock Plan (the “2007 Stock Option Plan”). The 2007 Stock Option Plan provided for awards of various types of equity securities (including common stock, restricted stock units, options and/or other derivative securities) to employees and directors of the Company. On June 13, 2017, Dr. Boynton received options exercisable for approximately 3.4 million shares of common stock. The options are exercisable at a price of $0.25 per share, and havehad a 5-year exercise period. The optionsperiod when originally granted (which was subsequently extended to Dr. Boynton are subject to vesting requirements.10 years). 50% of the options vested on the grant date, and 50% will vestvested over a 24-month period in equal monthly installments, provided that the recipient continued to be employed by the Company. On January 14, 2018, we extended the term of the options from 5-year to 10-year.
(3)
On May 28, 2018, we granted 4,900,000 stock options to Dr. Boynton. The options are exercisable at a price of  $0.23 per share, and have a 10-year exercise period. 50% of the options vested on the grant date, and 50% have been vesting over a 24-month period in equal monthly installments, provided that the recipient continues to be employed by the Company.
(3)
In conjunction withCompany, subject to acceleration upon the employment agreement entered into between usoccurrence of certain achievement milestones. During the year ended December 31, 2018, a performance milestone was achieved and Mr. Goldmanthe Company accelerated vesting on June 8, 2011, we issued Mr. Goldman an option1,225,000 of the stock options granted to purchase 137,750 shares of our stock with an exercise price of  $10.56 per share. One-thirdDr. Boynton. The remaining unvested portions of the options vested on the grant date, and upon vesting becameare subject to accelerated vesting upon
16

TABLE OF CONTENTS
(i) a lock-up which extended to the earlierchange of 18 months or our reaching the primary endpoint of our GBM brain cancer clinical trial. One-third vested in equal monthly portions over the termeffective control of the employment agreement. The remaining one-third will vestCompany, (ii) the filing of the first Biologics License Application or other application for product approval in portions tied to material milestonesany jurisdiction, (iii) completion of any randomized clinical trial that meets its endpoint(s) (Phase II or Phase III), (iv) a decision by the Board, in multiple programs, if and toits discretion or (v) the extent those milestones are achieved, or may vest indeath of the Board’s discretion.
recipient.
(4)
On June 13, 2017, the CompanyAugust 31, 2018, we granted 2,967,065 stock options to acquire shares of the Company’s common stock to Dr. Bosch. The options were granted pursuant to the 2007 Stock Option Plan. The 2007 Stock Option Plan provided for awards of various types of equity securities (including common stock, restricted stock units, options and/or other derivative securities) to employees and directors of the Company. On June 13, 2017, Dr. Bosch received options exercisable for approximately 7.9 million shares of common stock.Boynton. The options are exercisable at a price of $0.25$0.23 per share, and have a 5-year10-year exercise period. The vesting terms are the same as for the options granted on May 28, 2018.
(5)
On May 28, 2018, we granted 24,500,000 stock options to Dr. BoschMr. Goldman. The options are subject to vesting requirements.exercisable at a price of  $0.23 per share, and have a 10-year exercise period. 50% of the options vested on the grant date, and 50% will vesthave been vesting over a 24-month period in equal monthly installments, provided that the recipient continues to be employed by the Company.Company, subject to acceleration upon the occurrence of certain achievement milestones. During the year ended December 31, 2018, a performance milestone was achieved and the Company accelerated vesting on 6,125,000 of the stock options granted to Mr. Goldman. The remaining unvested portions of the options are subject to accelerated vesting upon (i) a change of effective control of the Company, (ii) the filing of the first Biologics License Application or other application for product approval in any jurisdiction, (iii) completion of any randomized clinical trial that meets its endpoint(s) (Phase II or Phase III), (iv) a decision by the Board, in its discretion or (v) the death of the recipient.
(6)
The options were granted under the 2007 Stock Option Plan. 1,250 options vested each month until May 31, 2013. In addition, 6,250 options vest upon each of Swiss Approval, full Enrollment in Phase II Glioblastoma Multiforme clinical study and FDA approval of NDA.
(7)
The options were granted under the 2007 Stock Option Plan. This option grant vested over the balance of 2009 with 7,813 options vesting on the grant date and the remainder of the options vesting on December 31, 2009.
(8)
On June 13, 2017, we awarded 7,940,182 options to Dr. Bosch under the 2007 Stock Plan. The options are exercisable at a price of  $0.25 per share, and have a 5-year exercise period. 50% of the options vested on the grant date, and 50% vested over a 24-month period in equal monthly installments. On January 14, 2018, we extended the term of the options from 5-year to 10-year.
(9)
On December 9, 2019, we granted 3,000,000 stock options to Ms. Davis pursuant to her employment agreement. The options are exercisable at a price of $0.22 per share, and have a 10-year exercise period. 1,750,000 stock options are vesting on a pro-rata monthly basis over the first 36 months of employment, and 1,250,000 stock options will vest based upon performance-based milestones.
Employment Agreements
The Company entered into employment agreements with its Named Executive Officerseach of Ms. Powers, Dr. Boynton, Mr. Goldman and Dr. Bosch in 2011. Those2011 and with Ms. Davis in 2019. The 2011 agreements have expired and the Company intends to enter into new employment agreements with itssuch executives. Pursuant to Ms. Davis’s employment agreement, which became effective December 9, 2019, she was appointed Chief Financial Officer, Chief Accounting Officer and Interim Chief Information Officer of the Company. The agreement provides that she will earn a salary of  $265,000 per year, payable in accordance with the Company’s standard payroll practices. The compensation package also includes the right to receive an award of 1,750,000 stock options that vest on a pro-rata monthly basis over the first 36 months of employment and 1,750,000 stock options that will vest based on the achievement of performance-based milestones mutually agreed by the Company and Ms. Davis. As of the filing date of this proxy statement, the Company has not yet granted to Ms. Davis 500,000 of the 1,750,000 performance-based stock options because management has yet to assign the relevant performance metrics to such stock options. None of the named executive officers is entitled to severance payments or other benefits upon the termination of employment or following a change of control of the Company except for the accelerated vesting of outstanding equity awards described in the footnotes to the Outstanding Equity Awards at Fiscal Year-End table above for Ms. Powers, Dr. Boynton and Mr. Goldman.
17

TABLE OF CONTENTS
DIRECTOR COMPENSATION
The following table sets forth certain information concerning compensation paid or accrued to our non-executive directors during the year ended December 31, 2017.2019.
NameYearFees Earned or
Paid in Cash ($)
All Other
Compensation ($)
Total ($)YearFees Earned
or Paid in Cash
($)
All Other
Compensation
($)
Option
Awards
($)(1)
Total
($)
Dr. Navid Malik2017$150,000$   —$150,0002019150,000150,000
Jerry Jasinowski2017$150,000$$150,0002019150,000150,000
J. Cofer Black2017$150,000$$150,0002019150,000150,000
16

(1)
TABLE OF CONTENTSAs of December 31, 2019, our non-executive directors held the following number of stock options: Dr. Malik: 9,065,000, Mr. Jasinowski: 4,900,000 and Ambassador Black: 1,715,000.
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
Advent BioServices, Ltd.
Advent BioServices, Ltd. (“Advent”) is a related party based in the U.K. and owned by Toucan Capital Fund III in 2018. Our Chairperson and Chief Executive Officer, Linda F. Powers, is a managing director of Toucan Capital Fund III. Advent was previously the U.K. branch of Cognate BioServices, Inc.
The Companyuntil it was spun off from Cognate in late 2016. Since then, Advent has operated independently of Cognate, providing manufacturing and Cognate BioServices, Inc., an affiliaterelated services for production of DCVax-L products for Europe. On May 14, 2018, the Company (collectively, “Cognate”), entered into a DCVax-LDCVax®-L Manufacturing and Services Agreement a DCVax-Direct Manufacturing Services Agreement, an Ancillary Services Agreement and a Manufacturing Expansion Agreement, each effective as of January 17, 2014, and those agreements followed and superseded Manufacturing Services Agreements in 2011 and 2007. The Company’s agreements with Cognate, and payments and stock issuances to Cognate, as well as vesting, lock-up and other restrictions on the shares, accounts payable to Cognate, and loans made by Cognate to the Company, areAdvent, which is described in Note 910 of the financial statements included in the Company’s 2019 Annual Report on Form 10-KReport. On November 8, 2019, the Company entered into an Ancillary Services Agreement with an eight month term for the fiscal year ended December 31, 2016.U.K. Facility Development Activities and Compassionate Use Program Activities, which is described in Note 10 of the financial statements included in the Company’s 2019 Annual Report. The total amount paid by the Company to Advent during 2019 was $6,089,385.
Related-Party Transaction Approval Policy
Under SEC rules, related-party transactions are those transactions to which we are or may be a party in which the amount involved exceeds the lesser of  $120,000 or one percent of the average of our total assets at year-end for the last two completed fiscal years, and in which any of our directors or executive officers or any other related person had or will have a direct or indirect material interest, excluding, among other things, compensation arrangements with respect to employment or board membership. Any transactions with any person who is, or at any time since the beginning of the Company’s fiscal year was, a director or executive officer or a nominee to become a director of the Company, any person who is known to be the beneficial owner of more than 5% of any class of the Company’s voting securities, any immediate family member or person sharing the household of any of the foregoing persons, any firm, corporation or other entity in which any of the foregoing persons is a partner or principal, is subject to approval or ratification in accordance with the procedures of the Company’s Related-Party Transaction Policy. Any transactions with officers, directors or 5% stockholders are on market-based terms, and are approved by a majority of our independent and disinterested directors.
Conflicts Committee
With respect to reviewing and approving related-party transactions, theThe Conflicts Committee of the Board reviews and approves all related-party transactions in advance of entry into suchmatters and transactions for potential conflicts of interests and other improprieties, reasonableness, and that such transactions be disclosedas described in accordance with applicable legal and regulatory requirements.the Corporate Governance Matters section above. The Conflicts Committee’s one-time review and approval of any series of similar related-party transactions (such as a series of transactions governed by a single contract) suffices to satisfy this policy with respect to each and every transaction in the series.
The Conflicts Committee considers allReport of the material relevant facts and circumstances available to the Conflicts Committee, including, but not limited to, the purpose of and potential benefits of the transaction to the Company and its subsidiaries, the nature and extent of the related-party’s interest in the transaction, the impact on a director’s independence and his or her judgment to act in the best interests of the Company and its stockholders in the event the related-party is a director or immediate family member of a director, whether the transaction is ordinary course, and any other information that is reasonably believed to be material to investors in light of the circumstances of the particular transaction. As set forth in its charter, the Conflicts Committee may, in its sole discretion and at the expense of the Company, engage independent legal, accounting or other advisors to review certain related-party transactions.
The Conflicts Committee currently consists of Messrs. Jasinowski and Black. The Conflicts Committee must include at least one “audit committee financial expert” as defined by the Securities and Exchange Commission. Our Board of Directors has determined that all of the members of the Compensation Committee are “independent” under the current listing standards of NASDAQ.
Audit Committee Report
As part of its specific duties, the Audit Committee reviews our Company’s financial reporting process on behalf of the Board; reviews the financial information issued to stockholders and others, including a
18

TABLE OF CONTENTS
discussion of the quality, acceptability and clarity of the information, and monitors our systems of internal control and the audit process. Management is responsible for the preparation, presentation and integrity of
17

TABLE OF CONTENTS
our financial statements, accounting and financial reporting principles, and disclosure controls and procedures designed to ensure compliance with accounting standards and applicable laws and regulations. Management also is responsible for objectively reviewing and evaluating the adequacy, effectiveness, and quality of our own system of internal control. Our independent registered public accounting firm is responsible for performing an independent audit of the consolidated financial statements and expressing an opinion on the conformity of those financial statements with generally accepted accounting principles.
The Audit Committee has reviewed and discussed with management our audited financial statements for the fiscal year ended December 31, 2016.2019. The Audit Committee has discussed with Marcum LLP, our Company’s independent registered public accounting firm for the fiscal year ended December 31, 2016,2019, the matters required to be discussed by the statement on Auditing Standards No. 61, as amended (AICPA, Professional Standards, Vol. 1 AU Section 380), as adopted byapplicable requirements of the Public Company Accounting Oversight Board or PCAOB, in Rule 3200T.(the “PCAOB”) and the SEC. The Audit Committee has received the written disclosures and letter from Marcum LLP, our independent registered public accounting firm required by applicable requirements of the PCAOB regarding the independent registered public accounting firm’s communications with the Audit Committee concerning independence, and has discussed with the independent registered public accounting firm the independent registered public accounting firm’s independence. The Audit Committee has also considered whether the provision of services other than the audit of our financial statements werewas compatible with maintaining Marcum LLP’s independence.
Based on the review and discussions referred to in the foregoing paragraph, the Audit Committee recommended to the Board of Directors that the audited financial statements be included in our Annual Report on Form 10-K for the fiscal year ended December 31, 20162019 for filing with the SEC.
THE AUDIT COMMITTEE
Jerry Jasinowski
Dr. Navid Malik​
1819

TABLE OF CONTENTS
PRINCIPAL ACCOUNTANT FEES AND SERVICES
Fees Paid to Marcum LLP
Marcum LLP was engaged in 2017 and served as our independent public accounting firm for the fiscal years ended December 31, 2014, 20152016, 2017 and 2016.2018 and was engaged to serve in such capacity for 2019.
Audit Fees
The aggregate fees billed and unbilled for the fiscal years ended December 31, 20162019 and 2015billed for 2018 for professional services rendered by Marcum for the audit of our annual financial statements, the review of our financial statements included in our quarterly reports on Form 10-Q and consultations and consents were approximately $725,000$608,000 and $538,000,$654,050, respectively.
Audit-Related Fees
There were no fees billed in the fiscal years ended December 31, 20162019 and 20152018 for assurance and related services rendered by Marcum related to the performance of the audit or review of our financial statements.
Tax and Other FeesNon-Audit Professional Services
There were no fees billed in the fiscal years ended December 31, 20162019 and 20152018 for professional services rendered by Marcum for tax related services or other non-audit professional services fees.
Policy on Audit Committee Pre-Approval of Audit and Permissible Non-Audit Services
Consistent with SEC policies and guidelines regarding audit independence, the Audit Committee is responsible for the pre-approval of all audit and permissible non-audit services provided by our principal accountants on a case-by-case basis. Our Audit Committee has established a policy regarding approval of all audit and permissible non-audit services provided by our principal accountants. Our Audit Committee pre-approves these services by category and service. Our Audit Committee pre-approved all of the services provided by our principal accountants during the fiscal years ended December 31, 20162019 and 2015.2018.
1920

TABLE OF CONTENTS
OTHER MATTERS
Delinquent Section 16(a) Beneficial Ownership Reporting ComplianceReports
Section 16(a) of the Exchange Act requires our directors, executive officers and persons who own more than 10% of our stock, or “Reporting Persons,” to file with the SEC initial reports of ownership and changes in ownership of our stock. Reporting Persons are required by SEC regulations to furnish us with copies of all Section 16(a) reports they file. To our knowledge, based solely on our review of the copies of such reports received, we believe that during our fiscal year ended December 31, 20162019 all Reporting Persons timely complied with all applicable filing requirements.
Employee Equity Compensation
Following discussions with investors,requirements, except that one Form 3 to report the initial beneficial ownership of securities for Jean M. Davis was not filed on November 19, 2017 the Company’s Board of Directors approved a new plan for equity awards of fifteen percent of the authorized shares at present,timely basis due to take account of employee and director performance over the last approximately 6 years and anticipated performance over the next approximately 2 years. The awards are subject to various vesting provisions, forfeiture and acceleration provisions tied to milestones over the next 2 years. The Company is now undertaking the steps for implementation.administrative error.
Stockholder Proposals for the 2018Next Annual Meeting of Stockholders
We have not yet determined when we will hold the 2018 Annual Meeting of Stockholders, but we anticipate issuing a press release announcing such date when it is determined. Proposals of stockholders intended to be presented atincluded in our proxy materials for the 2018 Annual Meetingnext annual meeting of stockholders pursuant to Rule 14a-8 under the Exchange Act must be received by us no later than the close120th day prior to the first anniversary of businessthe date on September 13, 2018 in order that they may be included in thewhich this proxy statement and form of proxy relatingwas first mailed to that meeting.our stockholders. Proposals should be addressed to Northwest Biotherapeutics, Inc., 4800 Montgomery Lane, Suite 800, Bethesda, Maryland 20814, Attention: Secretary.
In addition, our bylaws require that we be given advance notice of stockholder nominations for election to our Board and of other business that stockholders wish to present for action at an annual meeting of stockholders (other than matters included in our proxy statement in accordance with Rule 14a-8). Our corporate secretary must receive such notice not lessno earlier than 120150 days nor moreand no later than 150120 days prior to the first anniversary of the date on which this proxy statement was first mailed to our stockholders. If the date on which the 2018 Annual Meetingnext annual meeting of stockholders will be held is changed by more than 30 calendar days from the date of the 2017 Annual Meeting, we must receive the notice at least 80 days prior to the date on which we intend to distribute the corresponding proxy statement.
The notice for any stockholder proposal must contain certain information set forth in our bylaws. In addition, stockholder proposals made under Rule 14a-8 under the Exchange Act are required to contain certain information. Therefore, we strongly encourage stockholders interested in submitting a proposal to contact legal counsel with regard to the detailed requirements of applicable securities laws. Copies of our bylaws can be obtained without charge from our corporate secretary.
Submitting a stockholder proposal does not guarantee that we will include it in our proxy statement.
THE BOARD HOPES THAT STOCKHOLDERS WILL ATTEND THE MEETING IN PERSON.
21

TABLE OF CONTENTS
ADDITIONAL INFORMATION
Communication with the Board of Directors
All communications should be in written form and directed to our corporate secretary at the following email address: corpsecretary@nwbio.com.
WHETHER OR NOT YOU PLAN TO ATTEND THE ANNUAL MEETING, YOU ARE URGED TO VOTE BY PHONE, ONLINE, OR COMPLETE, SIGN, DATE AND RETURN THE ENCLOSED PROXY CARD IN THE ACCOMPANYING ENVELOPE. PROMPT RESPONSES WILL GREATLY FACILITATE ARRANGEMENTS FOR THE MEETING AND YOUR COOPERATION IS APPRECIATED. STOCKHOLDERS WHO ATTEND THE MEETING MAY VOTE THEIR STOCK PERSONALLY EVEN THOUGH THEY HAVE SENT IN THEIR PROXY CARDS.
By Order of the Board of Directors,
/s/ Linda F. Powers
Chairperson of the Board of Directors
March 27, 2020
20

TABLE OF CONTENTS
By Order of the Board of Directors,
/s/ Linda F. Powers
Chairperson of the Board of Directors
January 9, 2018
2122

TABLE OF CONTENTS
[MISSING IMAGE: c482596_pc1.jpg][MISSING IMAGE: tm2013863_1-pc1.jpg]
UsingNorthwest Biotherapeutics, Inc.Using a black ink pen, mark your votes with an X as shown inthisin this example. Please do not write outside the designated areas. XNorthwest Biotherapeutics, Inc.02QHZF1 U P X +Annualareas.Annual Meeting Proxy Card.CCardq IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. qProposals — The Board of Directors recommends a vote FOR the nominees listed in Proposal 1, FOR Proposal 2 and for 3 YEARS onAProposal 3.1. To elect two members to our Board of Directors to serve as Class I directors for a term of three years: +For WithholdFor Withhold01 - Dr. Alton L. Boynton02 - J. Cofer Black 2. To ratify the appointment of Marcum LLP as our independent registered public accounting firm for the fiscal year ended December 31, 2020. For Against Abstain 3. To approve, on an advisory basis, of the frequency with which future advisory votes on executive compensation should be held. 3 Years 2 Years 1 Year Abstain 4. To act upon such other matters as may properly come before the meeting or any adjournments or postponements thereof.B Authorized Signatures — This section must be completed for your vote to be counted. — Date and Sign BelowPlease sign exactly as name(s) appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian, or custodian, please givefull title.Dategive full title. Date (mm/dd/yyyy) — Please print date below. Signature 1 — Please keep signature within the box. Signaturebox.Signature 2 — Please keep signature within the box.+Change of Address — Please print your new address below. Comments — Please print your comments below.B Non-Voting ItemsMeeting AttendanceMark the box to the rightif you plan to attend theAnnual Meeting.IMPORTANT ANNUAL MEETING INFORMATIONA Proposals — The Board of Directors recommends a vote FOR the nominee listed in Proposal 037OCE 1 and FOR Proposals 2 and 3.4. To act upon such other matters as may properly come beforethe meeting or any adjournment thereof.01 - Jerry Jasinowski1. Election of Class II Director: For WithholdFor Against Abstain2. Approval, on an advisory basis of NorthwestBiotherapeutics, Inc.'s 2017 executive compensation.For Against Abstain3. Ratification of the appointment of Marcum LLP as ourregistered public accounting firm for the fiscal year endedDecember 31, 2017.qIF YOU HAVE NOT VOTED VIA THE INTERNET OR TELEPHONE, FOLD ALONG THE PERFORATION,U P X 4 5 5 9 8 0 +

TABLE OF CONTENTS
[MISSING IMAGE: tm2013863_1-pc2.jpg]
q IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.qElectronic Voting InstructionsAvailable 24 hours a day, 7 days a week!InsteadENVELOPE. qProxy — Northwest Biotherapeutics, Inc.Notice of mailing your proxy, you may choose one of the votingmethods outlined below to vote your proxy.VALIDATION DETAILS ARE LOCATED BELOW IN THE TITLE BAR.Proxies submitted by the Internet or telephone must be received by1:00 a.m., Central Time, Sunday, January 21, 2018.Vote by Internet• Go to www.investorvote.com/NWBO• Or scan the QR code with your smartphone• Follow the steps outlined on the secure websiteVote by telephone• Call toll free 1-800-652-VOTE (8683) within the USA, US territories &Canada on a touch tone telephone• Follow the instructions provided by the recorded message

TABLE OF CONTENTS
[MISSING IMAGE: c482596_pc2.jpg]
.Notice of 2017 Annual Meeting of ShareholdersSunday, January 21, 2018StockholdersSaturday, April 18, 2020 at 1:30 p.m. (local time) at the law firm of Gibson, Dunn and Crutcher LLP,1050 Connecticut Avenue, NW, 2nd floor, Washington, DC 20036Proxy00 P.M. Eastern TimeProxy Solicited by Board of Directors for Annual MeetingLinda F. Powers and Leslie J. Goldman, or any of them, each with the power of substitution, are hereby authorized to represent and vote the shares of theundersigned,the undersigned, with all the powers which the undersigned would possess if personally present, at the Annual Meeting of Stockholders of NorthwestBiotherapeutics,Northwest Biotherapeutics, Inc. to be held at 1:00 p.m. Eastern Time on Sunday, January 21, 2018,Saturday, April 18, 2020 via the Internet at www.meetingcenter.io/227204437, or at any postponement or adjournment thereof.Sharesthereof  (including, if applicable, on any matter which the Board of Directors did not know would be presented at the Annual Meeting by a reasonable time before the proxy solicitation was made or for the election of a person to the Board of Directors if any nominee named in Proposal 1 becomes unable or unavailable to serve).Shares represented by this proxy, when properly executed, will be voted byin the stockholder.manner directed herein. If a properly executed proxy is returned and no such directions are indicated, the Proxies will have authority to vote FOR theClass IIthe Class I Director nomineenominees listed, FOR approvalProposal 2 and for 3 YEARS on an advisory basis of the 2017 executive compensation, and FOR the ratification of the appointmentof Marcum LLP as the Corporation’s registered public accounting firm.In their discretion, the Proxies are authorized to vote upon such other business as may properly come before the meeting.Proposal 3.(Items to be voted appear on reverse side.)Proxy — Northwest Biotherapeutics, Inc.qIF YOU HAVE NOT VOTED VIA THE INTERNET OR TELEPHONE, FOLD ALONG THE PERFORATION, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.