Board of Directors

Our Board members have extensive knowledge of the chemical industry and experience in the areas of strategic planning, domestic and international markets and business, management, accounting and finance, risk management, corporate governance, and public company leadership and oversight.

The Board is elected by our stockholders and provides a valuable resource to management. To ensure long-term value for our stockholders, the Board reviews the overall strategic direction of the company, selects the chief executive officer (CEO), provides for succession planning, monitors the performance of both the company and the CEO, and approves the annual operating plan and long-term strategy.

Our Board members also work with management to encourage entrepreneurship, appropriate risk-taking and investment to promote our long-term success. Our Board actively cultivates a corporate culture that gives high priority to ethical standards, principles of fair dealing, professionalism, integrity, compliance with legal requirements and ethically sound strategic goals.


Cynthia Arnold

Cynthia A. Arnold

Committee memberships: SHE and Sustainability

Director since: 2018

Term of office expires: 2024

Dr. Arnold was Chief Technology Officer of The Valspar Corporation, a global paint and coatings company, from 2011 until her retirement in 2017. During her tenure with Valspar she was responsible for technology strategy, project portfolio and organizational development of the global technology function across eight Valspar businesses. Prior to joining Valspar in 2011, Dr. Arnold served as Chief Technology Officer at Sun Chemical Corporation. Dr. Arnold is a member of the Advisory Board for the Department of Chemical Engineering and Materials Science at the University of Minnesota, as well as the Materials Advisory Board for Carbon 3D, Inc. She is also a member of the Board of Directors and Co-chair of the Technology Task Force for the Minnesota Zoo..

Douglas G. Del Grosso

Doug Del Grosso

Committee memberships: Audit

Director since: 2020

Term of office expires: 2024

Mr. Del Grosso is president and chief executive officer of Adient plc, an automotive seating manufacturer. Prior to joining Adient, Mr. Del Grosso was president and chief operating officer of Chassix Inc., a privately held automotive parts supplier, from 2016 until 2018, and president and chief executive officer of Henniges Automotive, a manufacturer of automotive sealing and anti-vibration systems, from 2012 until 2015. Prior to that, Mr. Del Grosso spent five years at TRW Automotive, where he last served as vice president and general manager for the company’s global braking and suspension operations. Prior to joining TRW Automotive, Mr. Del Grosso spent more than 20 years at Lear Corporation in a variety of operational roles, the last being president and chief operating officer. Mr. Del Grosso holds a Bachelor of Science degree with a major in mechanical engineering from Lawrence Technological University, and a Master of Business Administration degree from Michigan State University. He also serves on the Board of Directors/Executive Committee for the Reggie Jackson Foundation.

Juan Enriquez

Juan Enriquez

Committee memberships: SHE and Sustainability (Chair), Governance and Nominating

Director since: 2005

Term of office expires: 2023

Mr. Enriquez has served as Chairman of the Board of Directors and Chief Executive Officer of Biotechonomy Ventures, a life sciences research and investment firm, since 2003 and Managing Director of Excel Venture Management, a life sciences investment company, since March 2008. Prior to that, Mr. Enriquez served as Director of the Life Science Project at Harvard Business School from 2001 to 2003. He is also a member of the Board of Directors of various start-up companies.

Sean Keohane

Sean D. Keohane

Committee memberships: Executive

Director since: 2016

Term of office expires: 2023

Mr. Keohane became President and Chief Executive Officer of Cabot Corporation in March 2016. Mr. Keohane joined Cabot in 2002 in the carbon black business. Since joining the company, he has held several key management positions including general manager of the Performance Product business group, global marketing director for the carbon black businesses, senior vice president and president of the Performance Materials Segment, and president of the Reinforcement Materials segment. Prior to joining Cabot, Mr. Keohane worked for Pratt & Whitney, a division of United Technologies in a variety of general management positions. Mr. Keohane is also a member of the Board of Directors of the American Chemistry Council, a trade association representing the business of chemistry at the global, national and state levels. Mr. Keohane earned his MBA from Harvard University and a BS in Finance from Providence College.

William Kirby

William C. Kirby

Committee memberships: Compensation

Director since: 2012

Term of office expires: 2023

Mr. Kirby is the Spangler Family Professor of Business Administration at the Harvard Business School and T.M. Chang Professor of China Studies at Harvard University, positions he has held since July 2008. Since July 2006, he has also been a Harvard University Distinguished Service Professor and Chairman of the Harvard China Fund. A Harvard faculty member since 1992, Mr. Kirby has served as Chair of Harvard’s History Department, Director of the Harvard University Asia Center, Dean of the Faculty of Arts and Sciences, and Director of the Fairbank Center for Chinese Studies. Mr. Kirby also serves on the Board of Directors of The China Fund, Inc., a non-diversified closed-ended management investment company, and The Taiwan Fund, Inc., a diversified closed-ended management investment company.


Michael M. Morrow

Committee memberships: Audit (Chair), Compensation, Governance and Nominating, Executive

Director since: 2017

Term of office expires: 2022

Mr. Morrow joined PricewaterhouseCoopers (PwC), a public accounting firm, in 1977 and retired from the partnership in June 2016. Mr. Morrow was a consultant to PwC from the time of his retirement until June 2017. During his tenure, he served as both an audit and overall relationship partner, and also held a variety of leadership positions as well as significant governance roles. Mr. Morrow was a member of PwC’s Global Board of Partners and served as the Lead Director for PwC’s U.S. Board of Partners. He also previously served as a member of the Boards of the business schools at Wake Forest University and the University of Rhode Island. 

Sue Rataj

Sue H. Rataj

Committee memberships: Executive (Chair), Governance and Nominating (Chair)

Director since: 2011

Term of office expires: 2022

Mrs. Rataj was elected as Cabot's Non-Executive Chairman of the Board in March 2018.

Ms. Rataj was Chief Executive, Petrochemicals for BP, a global energy company, from April 2008 until her retirement in April 2011, with global responsibility for BP’s petrochemicals operations. Prior to that, Ms. Rataj held a variety of senior management positions with BP, most recently serving as Group Vice President, Refining and Marketing from July 2007 until April 2008. Ms. Rataj is also a member of the Board of Directors of Agilent Technologies, Inc., a global leader providing instruments, software and consumables to laboratories in the life sciences, diagnostics and applied chemical markets. Ms. Rataj was previously a member of the Supervisory Board of Bayer AG, a global life sciences enterprise, serving a five-year term that ended in 2017.

Andy Wilson

Frank A. Wilson

Committee memberships: Audit

Director since: 2018

Term of office expires: 2022

Mr. Wilson was Chief Financial Officer and Senior Vice President of PerkinElmer, Inc., a life sciences diagnostics, discovery and analytical solutions company, from 2009 until his retirement in 2018. Prior to joining PerkinElmer, he held key business development and finance roles over 12 years at the Danaher Corporation, the life sciences and industrial conglomerate, including Corporate Vice President of Investor Relations. Previously, Mr. Wilson worked for several years at AlliedSignal, Inc., now Honeywell International Inc., where he served as Vice President of Finance and Chief Financial Officer for Commercial Aviations Systems. His earlier experience included financial and controllership positions of increasing responsibility at PepsiCo Inc., as well as roles at E.F. Hutton and Company, and KPMG Peat Marwick. Mr. Wilson is a member of the Board of Directors for Alkermes, a fully integrated, global biopharmaceutical company, and Novanta, a global supplier to medical and advanced industrial OEMS of core components and subsystems that deliver extreme precision and performance. He previously served as member of the Board of Directors and Chair of the Audit Committee of Sparton Corporation, a provider of complex and sophisticated electromechanical devices, which was acquired by Cerberus. He is a Certified Public Accountant.

Matthias Wolfgruber

Matthias Wolfgruber

Committee memberships: Governance and Nominating, Compensation (Chair)

Director since: 2014

Term of office expires: 2022

Dr. Wolfgruber was Chief Executive Officer of Altana AG, a global specialty chemicals company, a position he held from 2007 until his retirement in January 2016. He joined Altana in 2002, as President and Chief Executive Officer of Altana Chemie AG and a member of the management board of Altana AG. Prior to joining Altana, he held a number of management positions at Wacker-Chemie in the United States and Europe from 1985 through 2002. Dr. Wolfgruber is a member of the Supervisory Board of Altana AG, a member of the Supervisory Board of Grillo-Werke AG, a manufacturer and supplier of zinc alloy products and chemicals, and a member of the Supervisory Board of Lanxess AG, a leading global manufacturer of synthetic rubber and chemical intermediates. 

Christine Yan

Christine Y. Yan

Committee memberships: SHE and Sustainability

Director since: 2019

Term of office expires: 2024

Ms. Yan retired in 2018 from the role of vice president of integration at Stanley Black & Decker where she led the company’s successful integration of Nelson Fastener Systems. Prior to this role, Ms. Yan served as President – Asia for Stanley Black & Decker based in Shanghai, China and President – Stanley Storage and Workspace Systems. She started her career at Black & Decker as an engineering intern in 1989 and progressed to be the first female business unit president for the company in 2006 when she became President of Global Automotive for the Engineered Fastening Business. Ms. Yan also serves as a director of Modine Manufacturing Company, ON Semiconductor and Ansell Limited and serves on the advisory board for Goldman Sach’s China-US Industrial Cooperation Partnership. She holds a Bachelor of Science degree from Shandong University in Shandong, China, a Master of Science in Mechanical Engineering degree from Wayne State University in Detroit, Michigan, and a Master of Business Administration degree from the University of Michigan’s Ross School of Business in Ann Arbor, Michigan.