Management Executive Committee

Comprised of our CEO, CFO and the individuals responsible for our segments, regions and select functions, this team is responsible for the management of the company as a whole.

Our management executive committee sets our strategic direction and implements strategies both to maximize long-term shareholder value and achieve shorter-term objectives, defines priorities, establishes corporate-wide policy and manages governance and enterprise-level decisions. The individual members of the Management Executive Committee are responsible for the management and operations of our businesses, functions and regional operations.


Sean KeohaneSean D. Keohane

President and Chief Executive Officer

Sean Keohane is president and chief executive officer of Cabot Corporation and a member of the Board of Directors. Since joining Cabot in 2002, Sean has held numerous key management positions including president of the Reinforcement Materials segment, president of the Performance Chemicals segment and president of the Asia Pacific region. Prior to joining Cabot, Sean worked for Pratt & Whitney, a division of United Technologies, in a variety of general management positions. Sean earned his MBA from Harvard University and a BS in Finance from Providence College. Sean also serves on the Board of Directors of The Chemours Company (NYSE: CC) the American Chemistry Council and is a Trustee of Dexter Southfield School and the Boston Latin School Association.


Jay DoubmanJay Doubman

Senior Vice President and President, Performance Additives

Jay Doubman joined Cabot in 2006, and his most recent position was as senior vice president, corporate strategy and development, and president, Specialty Fluids segment. Since joining the company, he has held several commercial and business positions including vice president and general manager of the tire and elastomer composites product lines within the Reinforcement Materials segment, vice president of the Europe, Middle East and Africa region for the Reinforcement Materials segment, director of corporate strategy, and commercial director for the inkjet business. Prior to joining Cabot, he worked for Saint Gobain, as well as Bain and Company. Jay earned his MBA from The Wharton School, University of Pennsylvania and has a BS in Mechanical Engineering from Bucknell University.


Patricia HubbardPatricia Hubbard

Senior Vice President and Chief Technology Officer

Patricia Hubbard joined Cabot in 2018. Prior to joining Cabot, Patricia worked for Avery Dennison as vice president of R&D for the Label and Graphic Materials division in North America. Prior to Avery Dennison, she worked for PolyOne Corporation and General Electric. Throughout her career, she has garnered extensive knowledge of materials science and formulated solutions that have driven new product development and technology innovation. Patricia is a certified Lean Six Sigma Black Belt, and earned her PhD in polymer science from the University of Akron and a BS in Chemistry from Case Western Reserve University.


Aaron JohnsonAaron Johnson

Senior Vice President and President, Purification Solutions Segment

Aaron Johnson joined Cabot in 2005 and has held a variety of leadership positions, most recently as vice president and general manager of Cabot’s specialty carbons business within the Performance Additives segment. He was also vice president and general manager for the EMEA specialty compounds business, vice president for business development in the Asia Pacific (AP) region, and vice president for the AP region for the Purification Solutions segment. Before joining Cabot, Aaron worked for The Boston Consulting Group. He earned his MBA from the Massachusetts Institute of Technology’s Sloan School of Management and a BS in Geology from Bates College.


Brian BerubeKaren Kalita

Senior Vice President, General Counsel

Karen Kalita joined Cabot in 2008, and has since held several key positions in the law department, including chief legal counsel to our Reinforcement Materials and Purification Solutions segments and senior legal counsel to our previous Advanced Technologies segment. Before joining Cabot, Karen was a corporate attorney at WilmerHale LLP in Boston, a global law firm. Karen earned her JD degree from Harvard Law School and a BA from the University of Arizona.


Bart KalksteinBart Kalkstein

Senior Vice President and President, Reinforcement Materials Segment; President, Americas Region

Bart Kalkstein joined Cabot in 2005. Since joining the company, Bart has held several key management positions within the company, most recently as vice president of corporate strategy and development. He was also vice president of global business operations and general manager of global emission control solutions for the Purification Solutions segment, vice president of business operations and executive director of marketing and business strategy for the Performance Chemicals segment, and general manager of the aerogel business. Prior to joining Cabot, Bart worked for Boston Consulting Group. Bart earned his MBA from Harvard University and a BSE in Civil Engineering and Operations Research at Princeton University.


Erica McLaughlinErica McLaughlin

Senior Vice President and Chief Financial Officer

Erica McLaughlin joined Cabot in 2002 and has held a variety of roles within the finance organization and Cabot’s global businesses, most recently as vice president of business operations for the Reinforcement Materials segment and general manager of the tire business. Since joining the company, she has held a number of senior leadership positions including vice president of investor relations and corporate communications, as well as global director of strategy, planning and finance for Cabot’s core segment. Prior to joining Cabot, Erica worked for KPMG, LLP in their audit services division. She is a Certified Public Accountant and earned an MBA and a BS in accounting from Boston College.


Martin O'Neill

Martin J. O'Neill

Senior Vice President, Safety, Health and Environment (SH&E) and Government Affairs

Martin O'Neill joined Cabot in 2000. Since joining Cabot, Martin has held several key positions including director of SH&E for the former Cabot supermetals business, plant general manager for the company's tantalum manufacturing operations in Boyertown, Pennsylvania, USA and general manager of the TANCO mining operation in Manitoba, Canada. Prior to joining Cabot, Martin was director of SH&E for North and South America with AMP Incorporated/Tyco Electronics and worked in consulting for 15 years. Martin earned his MS in Environmental Science from Drexel University and a BA in Ecology from Rutgers College. He is a member of the American Industrial Hygiene Association and serves on the Board of Trustees for Boston Harbor Now. In addition, he is a member of the Advisory Board for HomeStart, Inc. and the Norwell Visiting Nurses Association (NVNA).


Nicholas CrossAled Rees

Senior Vice President and President, Formulated Solutions; President, Specialty Fluids; President, Europe, Middle East and Africa (EMEA) Region

Aled Rees joined Cabot in 2000 and most recently held the position of vice president and general manager for the Specialty Fluids segment. Prior to that, he had held a variety of business, finance, and regional roles, including vice president and regional business director for our Reinforcement Materials segment in Europe, Middle East, and Africa (EMEA) as well as finance director for the Asia Pacific region. He is a Fellow member of the Institute of Chartered Management Accountants in the UK and holds a BA in Accounting and Finance from the University of South Wales.


Art Wood

Arthur (Art) T. Wood

Senior Vice President and Chief Human Resources Officer

Art Wood joined Cabot in 2017. Prior to joining Cabot, Art worked for Thermo Fisher Scientific as group vice president of Human Resources, Specialty Diagnostics Group. During his tenure at Thermo Fisher Scientific he held several senior human resources (HR) leadership roles of increasing responsibility, overseeing large teams of HR professionals globally. In addition to Thermo Fisher Scientific, Art has garnered experience building and leading strategic HR organizations at large, multinational corporations including Progress Software and Sun Microsystems. Art earned his MBA from the University of Colorado Denver and his BA from the University of Maryland.


Jeff ZhuJeff Zhu

Senior Vice President and President, Asia Pacific Region

Jeff Zhu joined Cabot in 2012. Prior to joining the company, he spent 18 years with Rhodia (and its predecessor Rhone-Poulenc) where he served in a variety of regional and global business leadership roles, including Asia Pacific regional commercial director, regional vice president and general manager of Novecare, and vice president and global director of electronics and catalysis. He serves on the Board of Directors of the Association of International Chemical Manufacturers (AICM) and he also serves on the Senior International Advisory Board to ShaanXi Province. Jeff's most recent experience before joining Cabot was with Asia Pacific Resources International Holding Limited (APRIL), a multi-billion USD privately owned global paper and pulp company, where he served as head of global sales. Jeff earned his M.Sc in Chemistry from National University of Singapore and a distinction MBA from the University of Hull, UK.