Leadership Team



Boyce LT Photo  Michael R. Boyce
Former Chairman
PQ Corporation, a global specialty chemical and catalyst company 
Malvern, Pennsylvania 
Randall S. Dearth  Randall S. Dearth
President and Chief Operating Officer
GCP Applied Technologies Inc., a leading global provider of construction products technologies
Cambridge, Massachusetts
Joaquin Delgado  Joaquin Delgado
Executive Vice President
Consumer Business Group, 3M Company, a global, diversified technology company
St. Paul, Minnesota
Lawton LT Photo  Gregory E. Lawton
Former President and Chief Executive Officer
JohnsonDiversey Inc., a global provider of cleaning and hygiene solutions for institutional and industrial markets
Sturtevant, Wisconsin
Reed LT Photo  Jan Stern Reed
Former Senior Vice President, General Counsel and Corporate Secretary
Walgreens Boots Alliance, Inc., a global pharmacy-led, health and wellbeing enterprise
Deerfield, Illinois
FQ Stepan LT Photo  F. Quinn Stepan
Former Chairman 
FQ Stepan JR LT Photo  F. Quinn Stepan Jr.
Chairman, President and Chief Executive Officer 
Wehmer LT Photo  Edward J. Wehmer
President and Chief Executive Officer
Wintrust Financial Corporation, a financial services company
Rosemont, Illinois



F. Quinn Stepan Jr.
Chairman, President and Chief Executive Officer

Scott R. Behrens
Vice President and General Manager, Surfactants

Janet A. Catlett
Vice President and Chief Human Resources Officer

Arthur W. Mergner
Vice President, Supply Chain

Sean T. Moriarty
Vice President and General Manager, Polymers

Frank Pacholec
Vice President, Strategy and Corporate Development

Luis E. Rojo
Vice President and Chief Financial Officer

Robert V. Slone
Vice President, Chief Technology and Sustainability Officer

Debra A. Stefaniak
Vice President, Business Enablement

Departmental Vice Presidents


Matthew J. Eaken
Vice President and Corporate Controller

Human Resources

Greg Servatius
Vice President, Human Resources


Brian Bichkoff
Interim General Counsel and Secretary

David B. Mattingly
Chief Compliance Officer


Michael A. McCurrie
Vice President, Americas

Roger Stubbs
Vice President, Europe


Kyle Montgomery
Vice President, Procurement

Richard H. Wehman Jr.
Vice President, Strategic Purchasing

Research and Development

Matthew I. Levinson
Vice President, Global Process Development

Paul L. Neill
Vice President, Polymers Research and Development

Specialty Products

Robert J. Peacock
Vice President and General Manager

Strategy and Corporate Development

Todd A. Nelmark
Vice President, Commercial Development

Supply Chain

Thomas G. Meyer
Vice President, North American Supply Chain

Gary M. Traverso
Vice President, Corporate Engineering and Asia Supply Chain


Didier Ray
Vice President, Europe

Adriano Galimberti
Vice President and General Manager, North America

Mark F. Mydlach
Vice President, Sales