Meet the executive team responsible for leading our 47,000 forward-thinking employees towards our shared mission of making the world safer, healthier, and more efficient through technology, engineering, and science.

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Board of Directors

CEO and Director Since April 2023

Tom Bell is Chief Executive Officer of Leidos. With approximately $14.4 billion in annual revenue and 47,000 employees worldwide, Leidos is a recognized global leader in solving important problems in the defense, intelligence, homeland security, civil, and health markets. With a customer-focused and innovative approach, Bell’s strategic vision for Leidos focuses on promoting healthy growth while advancing the company’s overall strategy. 

Before becoming CEO in May 2023, Bell held leadership roles across prominent aerospace organizations for nearly 40 years. He was previously President of Rolls-Royce Defense where he led a global team of 10,000 professionals providing cutting-edge power, propulsion, and service solutions for aerospace, naval, and nuclear submarine applications to customers in more than 100 countries. In addition, Bell was Chairman and CEO of Rolls-Royce North America, Inc., overseeing all North American business and U.S-based employees, facilities, and customers. 

Bell began his career at Martin Marietta (now Lockheed Martin) in human space flight. He then joined McDonnell Douglas (now The Boeing Company) and held varied positions in manufacturing engineering, contracts and pricing, sales and marketing, and program management. He became Boeing’s Senior Vice President of Global Sales & Marketing for Defense, Space & Security, securing major wins in aircraft, rotorcraft, services, space, missile systems, and satellites. Bell has also served as Strategy Lead for Boeing Defense and Space, where he was responsible for research & development prioritization, merger and acquisition playbook, and market analysis. Other former roles at Boeing include living and working in Helsinki and President, U.K. Operations.  

Bell holds a Bachelor of Arts degree from Louisiana State University and a Master of Business Administration from the Florida Institute of Technology. He currently serves on the Executive Committee for the Aerospace Industries Association.

Director Since August 2016

Mr. Dahlberg has nearly 40 years of experience in federal budgeting, congressional legislation, executive management and military affairs with congressional committees, federal agencies, and private industry. As Lockheed Martin Corporation’s Senior Vice President for Washington Operations between 2009 and 2015, he was responsible for devising and implementing advocacy, marketing, and legislative strategies for the corporation’s largest programs and for directing the corporation’s liaison activities with Congress, the White House, federal departments, industry associations, state governments and foreign embassies. Mr. Dahlberg also served for over 20 years as a senior House Appropriations Committee staff member, including seven years as Minority Staff Director of the House Appropriations Defense Subcommittee with jurisdiction over programs of the Department of Defense and intelligence agencies. Mr. Dahlberg also was confirmed as the 26th Under Secretary of the Army, serving as the principal advisor to the Secretary of the Army on all matters related to the management and operation of the United States Army, including programming and budgeting, weapons systems, manpower, personnel, reserve affairs, installations and logistics. He was appointed Acting Secretary of the Army in early 2001.

Mr. Dahlberg brings to our Board executive management background in government and industry, and his expertise in federal budgeting and congressional affairs provides the Board with experience that is highly relevant and valuable to our business as a government contractor.

Director Since September 2013
Mr. Fubini is a Senior Lecturer at Harvard Business School and a Director Emeritus at McKinsey & Company, a global management consulting company. Previously, he was a Senior Director at McKinsey, where he worked for over 33 years. He was McKinsey’s Managing Director of the Boston Office, the past leader of the North American Organization Practice and the founder and leader of the Firm’s Worldwide Merger Integration Practice.

Mr. Fubini brings to our Board expertise in architecting and executing organizational transformations. His extensive involvement in a wide array of corporate transactions and his executive management experience at McKinsey offer valuable insights to our Board.
Director Since September 2013

Ms. Geer is the retired President of HCA Information Technology & Services, Inc., a wholly-owned subsidiary of Nashville-based Hospital Corporation of America. Ms. Geer has over 35 years of experience in healthcare IT. She spent 30 years in HCA’s Information Service Department in a variety of positions. Ms. Geer has previously served on the boards of Franklin Road Academy, the United Way of Middle Tennessee, The Nashville Alliance for Public Education, the National Alliance for Health Information Technology, The HCA Foundation and the American Hospital Association Working Group for Health IT Standards. Ms. Geer is an emeritus member of the Vanderbilt University School of Engineering Committee of Visitors and a member of the Leadership Nashville class of 2010. She also served as an adjunct professor in the Owen School of Management of Vanderbilt University for several years.

Ms. Geer brings to our Board extensive leadership experience in healthcare information technology. She provides insights and perspectives that our Board views as important to us as a provider of information technology services and solutions.

Director Since June 2007

Dr. John retired from Sandia National Laboratories, a science and engineering laboratory, after serving since 1982 in a number of managerial and technical roles, most recently of which was as Vice President of Sandia’s California Division. Dr. John has been a long-time member of the Department of Defense’s Defense Science Board. She is the past Chair of the National Academies’ Naval Studies Board and a member of its Intelligence Community Studies Board and has served on the Board on Chemical Sciences and Technology and the Board on Army Science and Technology. She also serves on the boards of a number of federally funded national security laboratories, including MIT Lincoln Lab and Lawrence Livermore National Laboratory. She is a Senior Fellow and past Chair of the California Council on Science and Technology. She has also been elected a National Associate of the National Academies and is the recipient of the Department of Defense’s prestigious Eugene G. Fubini Award and the Navy’s Superior Public Service Award for her advisory contributions. Dr. John is a member of the National Academy of Engineering and recently has been awarded the John S. Foster Award for contribution to national security and the nuclear weapons enterprise.

Dr. John is a highly respected scientist, speaker and consultant on both technical and leadership topics. She brings to our Board her diverse experience managing multi-disciplinary science and engineering organizations supporting national security, energy and defense. Our Board believes that Dr. John’s scientific background and leadership experience enable her to provide critical perspectives on technical, cybersecurity, national security and organizational issues important to our business.

Director Since June 2018

Mr. Kovarik has held various leadership positions at companies and globally recognized accounting and consulting firms. Mr. Kovarik served on the CareFirst, Inc. Board of Trustees from 2014 to 2021, as the Chair of its Investment and Finance Committee and as a member of its Audit and Compliance Committee. He also served as a member of the Alliance Bankshares Corporation Board of Directors from 2011 to 2012, where he served as its Audit Committee Chair. Mr. Kovarik served as a partner at Ernst & Young LLP (E&Y) from 2002 to 2008, and was part of the E&Y National Professional Practice group from 2005 to 2008, serving as a practice director for the Mid-Atlantic Area. From 2002 to 2005, Mr. Kovarik was an engagement partner for a wide range of corporate clients operating in both the government services and commercial markets. Prior to E&Y, Mr. Kovarik was with Arthur Andersen, LLP for over 25 years. At Andersen he held a variety of leadership positions and served as engagement partner for many large public and private companies with operations in the United States and around the world. Mr. Kovarik has served as an adjunct professor at both the University of Maryland and the University of Virginia.


Mr. Kovarik brings to our Board broad experience advising government and commercial clients, and his financial and accounting expertise, is important to our Board in fulfilling its oversight responsibilities. Mr. Kovarik is an “audit committee financial expert,” as defined by SEC rules.

Director Since April 1997

Mr. Kraemer has been an executive partner of Madison Dearborn Partners, LLC, a private equity investment firm, since April 2005, and has served as a professor at the Kellogg School of Management at Northwestern University since January 2005. Mr. Kraemer previously served as the Chairman of Baxter International, Inc., a healthcare products, systems and services company, from 2000 until 2004, as Chief Executive Officer of Baxter from 1999 until 2004, and as President of Baxter from 1997 until 2004. Mr. Kraemer also served as the Senior Vice President and Chief Financial Officer of Baxter from 1993 to 1997.

Mr. Kraemer brings comprehensive executive management experience to our Board as a former Chairman, Chief Executive Officer and Chief Financial Officer of a major global corporation. His investment and health expertise, background in commercial and international business, qualification as an “audit committee financial expert” as defined by SEC rules and thought leadership as a distinguished educator at a leading business school provide valuable contributions to our Board.

Director Since February 2015

Dr. May has served as the 7th Chancellor of the University of California at Davis since August 2017. He previously served as the Dean of the College of Engineering at the Georgia Institute of Technology from 2011 to 2017. Prior to this, Dr. May served as the Chair of the School of Electrical and Computer Engineering from 2005 to 2011 and was the executive assistant to Georgia Tech President G. Wayne Clough from 2002 to 2005. Dr. May was a National Science Foundation graduate fellow and an AT&T Bell Laboratories graduate fellow and worked as a member of the technical staff at AT&T Bell Laboratories. He is a former member of the National Advisory Board of the National Society of Black Engineers.

Dr. May is a distinguished researcher in the field of computer-aided manufacturing of integrated circuits (IC). He has authored over 200 articles and technical presentations in the area of IC computer-aided manufacturing and has been honored with numerous awards and distinctions for his work. As an accomplished engineer with leadership experience at a prominent academic institution and expertise in areas relevant to our business, including technology and cybersecurity, Dr. May brings to our Board special insight and perspectives that the Board views as important to us as a leading science and technology company.

Director Since August 2016
Surya N. Mohapatra, Ph.D., has held senior leadership positions in the health care industry for more than 30 years, most recently as the Chairman, President and Chief Executive Officer of Quest Diagnostics Incorporated, the world’s leading provider of diagnostic testing, information and services where he had been a senior executive since 1999. Dr. Mohapatra’s experience as CEO brings deep and relevant expertise in innovation, resource allocation and risk management to our Board. Dr. Mohapatra is a past Board member of the ITT Corporation and is currently a member of the Board of Directors of Xylem Inc., a leading global water technology and transport company. He is also a Trustee of The Rockefeller University and an Executive in Residence at the Columbia Business School. Dr. Mohapatra holds a BS in Electrical Engineering from the Regional Engineering College, Rourkela, India; a Master of Science in Medical Electronics from the University of Salford, England; and a Doctorate in Medical Physics from the University of London and the Royal College of Surgeons of England.
Director Since January 2024

Vice Admiral Norton is the retired Director of the Defense Information Systems Agency (DISA), a U.S. Department of Defense combat support agency, and commander, Joint Force Headquarters Department of Defense Information Network, positions she held from February 2018 through February 2021 after serving as Vice Director of DISA from August 2017 through February 2018. Vice Admiral Norton served over 34 years of active duty service as an officer in the U.S. Navy. She served as the director, Command, Control, Communications and Cyber Directorate, U.S. Pacific Command; director of Warfare Integration for Information Warfare; and held commands and posts in multiple international locations. She is the recipient of numerous personal and campaign awards, including the National Security Agency’s Frank B. Rowlett Award for individual achievement in information security.

Director Since February 2022

Mr. Shanahan served as the 33rd Deputy Secretary of Defense. He served as Acting Secretary of Defense from January 1, 2019, to June 23, 2019. Mr. Shanahan helped lead the development of several key Department of Defense policies and strategies. Mr. Shanahan also championed several digital and technological advancements for the Department, including modernization in cybersecurity, artificial intelligence, cloud computing and command, control and communication. In June 2018, Mr. Shanahan established the Joint Artificial Intelligence Center and published the Department’s Artificial intelligence Strategy. Mr. Shanahan was previously at The Boeing Company, where he served for over 30 years in various senior roles, including as Senior Vice President, Supply Chain & Operations, Senior Vice President of Commercial Airplane Programs, Vice President and General Manager of the 787 Dreamliner, Vice President and General Manager of Boeing Missile Defense Systems and Vice President and General Manager of Boeing Rotorcraft Systems.

Mr. Shanahan brings to our Board extensive experience as a senior leader in government, strategic planning background, extensive and in-depth knowledge of our industry, deep operational experience in aerospace and defense, significant public company board experience and broad expertise in cybersecurity, information technology, artificial intelligence, cyber operations and global security issues. He provides our Board with unique insights into key areas of our business as a provider of services and solutions to U.S. government customers, as well as international governments and broader commercial markets.

Director Since September 2013

Mr. Shapard currently serves as Chairman of the Board of Directors of Oncor Electric Delivery Company LLC, where he also served as Chief Executive Officer from April 2007 until March 2018. He previously served as a strategic advisor to Oncor, helping to implement and execute growth and development strategies. Between March and October 2005, he served as Chief Financial Officer of Tenet Healthcare Corporation, one of the largest for-profit hospital groups in the United States, and was Executive Vice President and Chief Financial Officer of Exelon Corporation, a large electricity generator and utility operator, from 2002 to February 2005. Before joining Exelon, Mr. Shapard was Executive Vice President and Chief Financial Officer of Ultramar Diamond Shamrock, a North American refining and marketing company. Previously, from 1998 to 2000, Mr. Shapard was CEO and Managing Director of TXU Australia Pty. Ltd., a subsidiary of the former TXU Corp., which owned and operated electric generation, wholesale trading, retail, and electric and gas-regulated utility businesses.

As an experienced executive in the energy industry, Mr. Shapard brings to our Board a unique perspective on issues that are important to our business. In addition, his previous experience as a Chief Financial Officer provides expertise critical to his role as a member of our Board’s Audit & Finance Committee. He is an “audit committee financial expert,” as defined by SEC rules.

Independent Director
Director Since August 2016

Susan M. Stalnecker was employed by E.I. du Pont de Nemours & Co. from 1977 to 2016, serving in numerous senior roles during her tenure, including 10 years as Vice President and Treasurer and most recently as Vice President, Corporate Productivity and Hospitality. Ms. Stalnecker previously served on the board of directors of PPL Corporation, a public holding company of PPL Electric Utilities Corporation from December 2001 to January 2009, and on the board of trustees of Duke University from 2003 to 2015. She currently serves on the board of directors and audit committee at Duke University Health System, Inc. Ms. Stalnecker received her undergraduate degree from Duke University and an MBA from The Wharton Graduate School of Business.