| Jan Reed | |
Director/Board Member
|
20/10/2015
|
27/07/2026
| |
Independent Dir/Board Member
|
20/10/2015
|
27/07/2026
|
|
| Jason Keiper | |
Chief Tech/Sci/R&D Officer
|
01/06/2019
|
01/01/2026
|
|
| Samuel Hinrichsen | |
Director of Finance/CFO
|
30/10/2024
|
15/07/2025
| |
Investor Relations Contact
|
15/07/2025
|
31/10/2025
| |
Corporate Officer/Principal
|
01/01/2022
|
30/10/2024
|
|
| Edward Wehmer | |
Director/Board Member
|
01/01/2003
|
29/04/2025
| |
Independent Dir/Board Member
|
01/01/2003
|
29/04/2025
|
|
| Sharon Purnell | |
Human Resources Officer
|
01/09/2023
|
07/04/2025
|
|
| David Kabbes | |
Human Resources Officer
|
03/04/2023
|
17/09/2023
| |
General Counsel
|
01/07/2019
|
14/03/2025
| |
Corporate Secretary
|
01/07/2019
|
14/03/2025
|
|
| Scott Behrens | |
Director/Board Member
|
-
|
30/10/2024
| |
Chief Executive Officer
|
25/04/2022
|
30/10/2024
| |
Chief Operating Officer
|
01/01/2021
|
25/04/2022
| |
Corporate Officer/Principal
|
01/01/1993
|
01/01/2021
| |
President
|
01/01/2021
|
30/10/2024
|
|
| Arthur Mergner | |
Corporate Officer/Principal
|
01/04/2014
|
03/07/2023
|
|
| Janet Catlett | |
Human Resources Officer
|
01/04/2018
|
01/04/2023
|
|
| Debra Stefaniak | |
Corporate Officer/Principal
|
01/10/2018
|
01/02/2023
|
|
| Michael Ross Boyce | |
Director/Board Member
|
27/04/2010
|
26/04/2022
| |
Independent Dir/Board Member
|
20/04/2010
|
26/04/2022
|
|
| Frank Pacholec | |
Corporate Officer/Principal
|
01/04/2003
|
01/01/2020
|
|
| F. Quinn Stepan | |
Director/Board Member
|
01/01/1967
|
30/04/2019
|
|
| Kimberly Portnoy | |
General Counsel
|
01/06/2016
|
01/11/2018
|
|
| Jennifer Ansbro Hale | |
Compliance Officer
|
01/01/2016
|
30/09/2018
| |
General Counsel
|
01/01/2016
|
30/09/2018
| |
Corporate Secretary
|
01/01/2016
|
30/09/2018
|
|
| Brian Bichkoff | |
General Counsel
|
-
|
-
| |
Corporate Secretary
|
01/02/2018
|
-
|
|
| Scott Beamer | |
Director of Finance/CFO
|
15/08/2013
|
12/01/2018
| |
Investor Relations Contact
|
15/08/2013
|
12/01/2018
|
|
| Scott C. Mason | |
Corporate Officer/Principal
|
30/06/2010
|
16/08/2017
|
|
| John V. Venegoni | |
Corporate Officer/Principal
|
01/02/1999
|
05/09/2014
|
|
| James E. Hurlbutt | |
Director of Finance/CFO
|
01/02/2002
|
15/08/2013
| |
Investor Relations Contact
|
01/11/2011
|
15/08/2013
| |
Public Communications Contact
|
30/06/2010
|
15/08/2013
|
|
| James Voss | |
Director/Board Member
|
03/08/2011
|
11/08/2011
|
|
| Gary Hendrickson | |
Director/Board Member
|
21/04/2009
|
01/08/2011
|
|
| Thomas F. Grojean | |
Director/Board Member
|
01/01/1977
|
03/05/2011
|
|
| Robert G. Potter | |
Director/Board Member
|
01/01/1995
|
20/04/2010
|
|
| Anthony J. Zoglio | |
Corporate Officer/Principal
|
01/07/2001
|
15/02/2010
|
|
| Anne Delprat | |
Corporate Officer/Principal
|
01/01/2009
|
-
|
|
| H. Edward Wynn | |
General Counsel
|
09/01/2007
|
-
| |
Corporate Secretary
|
09/01/2007
|
-
|
|
| Gregory Lawton | |
Director/Board Member
|
25/04/2006
|
-
| |
Independent Dir/Board Member
|
25/04/2006
|
-
|
|
| Paul H. Stepan | |
Director/Board Member
|
-
|
14/02/2006
|
|
| Nick J. Nedeau | |
General Counsel
|
-
|
31/12/2005
| |
Corporate Secretary
|
-
|
31/12/2005
|
|
| Walter J. Klein | |
Comptroller/Controller/Auditor
|
01/04/2002
|
01/04/2002
|
|
| Gregory Servatius | |
Human Resources Officer
|
01/04/2003
|
-
|
|
| Robert D. Cadieux | |
Director/Board Member
|
01/01/1992
|
-
|
|
| Robert John Wood | |
Corporate Officer/Principal
|
01/01/2001
|
-
|
|
| Robert Slone | |
Chief Tech/Sci/R&D Officer
|
-
|
-
|
|
| Floyd Eberts | |
General Counsel
|
-
|
-
| |
Corporate Secretary
|
-
|
-
|
|
| Robert Victor Slone | |
Chief Tech/Sci/R&D Officer
|
-
|
-
|
|
| Rick L. Tabor | |
Corporate Officer/Principal
|
-
|
-
|
|
| Paul L. Neill | |
Corporate Officer/Principal
|
-
|
-
|
|
| Kevin J. Knutsen | |
Corporate Officer/Principal
|
-
|
-
|
|
| John Hall | |
Corporate Officer/Principal
|
30/06/2010
|
-
|
|
| Edmund A. Perreault | |
Corporate Officer/Principal
|
-
|
-
|
|
| Kevin M. McMinn | |
Corporate Officer/Principal
|
-
|
-
|
|
| Kathleen O. Sherlock | |
Corporate Officer/Principal
|
-
|
-
|
|
| Edward T. C. Hyer | |
Corporate Officer/Principal
|
25/03/2009
|
-
|
|
| Stephen Newlin | |
Director/Board Member
|
-
|
-
|
|
| James M. Butterwick | |
Corporate Officer/Principal
|
30/06/2010
|
-
|
|
| Richard S. Brennan | |
General Counsel
|
-
|
-
| |
Corporate Secretary
|
-
|
-
|
|
| Kathleen M. Owens | |
Corporate Officer/Principal
|
-
|
-
|
|
| Kyle Montgomery | |
Corporate Officer/Principal
|
30/06/2010
|
-
|
|
| Robert S. Mangold | |
Corporate Officer/Principal
|
-
|
-
|
|
| Charles A. Brown | |
Corporate Officer/Principal
|
25/03/2009
|
-
|
|
| Richard H. Wehman | |
Corporate Officer/Principal
|
-
|
-
|
|
| Matthew I. Levinson | |
Corporate Officer/Principal
|
-
|
-
|
|
| Edward H. Buening | |
| Anthony Martin | |
Corporate Officer/Principal
|
-
|
-
|
|
| James S. Pall | |
Corporate Officer/Principal
|
-
|
-
|
|
| Jeffrey E. Grahn | |
Corporate Officer/Principal
|
25/03/2009
|
-
|
|
| Alfred C. Stepan | |