Profile
John M.
Duffey served as the President, Chief Executive Officer & Director of Six Flags Entertainment Corp.
from 2016 to 2017.
Prior to that, he was the Chief Financial Officer of Dade Behring Holdings, Inc. from 1995 to 2011 and the Chief Financial Officer & Executive Vice President of Dade Behring, Inc. from 2001 to 2007.
He also served as the Chief Integration Officer & Executive VP of Siemens Healthcare Diagnostics, Inc. from 2007 to 2010.
Before his career in the private sector, Duffey received an undergraduate degree from Michigan State University.
Former positions of John M. Duffey
| Companies | Position | End |
|---|---|---|
| SIX FLAGS ENTERTAINMENT CORPORATION | Chief Executive Officer | 2017-07-17 |
Dade Behring Holdings, Inc.
 Dade Behring Holdings, Inc. Medical SpecialtiesHealth Technology Dade Behring Holdings, Inc. manufactures medical diagnostic equipment. It develops and markets equipment and consumable supplies and provides maintenance services to clinical laboratories to perform diagnostic tests. The company's customers include hospitals and reference laboratories. The company was founded in 1994 and is headquartered in Deerfield, IL. | Director of Finance/CFO | 2011-04-05 |
Siemens Healthcare Diagnostics, Inc.
 Siemens Healthcare Diagnostics, Inc. Medical/Nursing ServicesHealth Services Siemens Healthcare Diagnostics, Inc. engages in the vitro diagnostics. It provides healthcare professionals in hospital, reference, and physician office laboratories and point-of-care settings with the vital information required to accurately diagnose, treat, and monitor patients. The company is headquartered in Tarrytown, NY. | Corporate Officer/Principal | 2009-12-31 |
Dade Behring, Inc.
 Dade Behring, Inc. Medical SpecialtiesHealth Technology Dade Behring, Inc. provides clinical diagnostic services. The firm's solutions include consulting & real time solutions, customer service support and streamCARE. The company is located in Deerfield, IL. | Director of Finance/CFO | 2007-10-31 |
PricewaterhouseCoopers LLP
 PricewaterhouseCoopers LLP Miscellaneous Commercial ServicesCommercial Services PricewaterhouseCoopers LLC provides assurance, tax and advisory services. Its services include audit and assurance, consulting, deals, human resources, legal, tax, and family business. The firm also offers accountability, risk management, structuring, mergers and acquisitions, and performance and process improvement. The company was founded in 1998 and is headquartered in Buffalo, NY. | Corporate Officer/Principal | - |
Training of John M. Duffey
| Michigan State University | Undergraduate Degree |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 1 |
|---|---|
| SIX FLAGS ENTERTAINMENT CORPORATION | Consumer Services |
| Private companies | 4 |
|---|---|
PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP Miscellaneous Commercial ServicesCommercial Services PricewaterhouseCoopers LLC provides assurance, tax and advisory services. Its services include audit and assurance, consulting, deals, human resources, legal, tax, and family business. The firm also offers accountability, risk management, structuring, mergers and acquisitions, and performance and process improvement. The company was founded in 1998 and is headquartered in Buffalo, NY. | Commercial Services |
Dade Behring Holdings, Inc.
Dade Behring Holdings, Inc. Medical SpecialtiesHealth Technology Dade Behring Holdings, Inc. manufactures medical diagnostic equipment. It develops and markets equipment and consumable supplies and provides maintenance services to clinical laboratories to perform diagnostic tests. The company's customers include hospitals and reference laboratories. The company was founded in 1994 and is headquartered in Deerfield, IL. | Health Technology |
Siemens Healthcare Diagnostics, Inc.
Siemens Healthcare Diagnostics, Inc. Medical/Nursing ServicesHealth Services Siemens Healthcare Diagnostics, Inc. engages in the vitro diagnostics. It provides healthcare professionals in hospital, reference, and physician office laboratories and point-of-care settings with the vital information required to accurately diagnose, treat, and monitor patients. The company is headquartered in Tarrytown, NY. | Health Services |
Dade Behring, Inc.
Dade Behring, Inc. Medical SpecialtiesHealth Technology Dade Behring, Inc. provides clinical diagnostic services. The firm's solutions include consulting & real time solutions, customer service support and streamCARE. The company is located in Deerfield, IL. | Health Technology |
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