John Deren is Corporate Vice President and Chief Accounting Officer for Teleflex.

Prior to joining Teleflex in May 2013, John was VP & Global Controller of Trinseo, a global specialty materials company. He led the financial carve out of Trinseo from Dow Chemical Company and successfully completed the Company’s first public reporting requirements. From June 2009 to December 2010, John was the Assistant Controller of Exelon Generation, one of the world’s largest producers and wholesale marketers of power. At Exelon he provided financial leadership over the largest nuclear fleet in the United States as well as Exelon’s wholesale energy business. From 2004 to 2009, John was the Assistant Controller of Rohm and Haas Company until its acquisition by the Dow Chemical Company in 2009. At Rohm and Haas he had oversight of the Company’s global consolidation, external reporting and all technical accounting matters.

John has over 23 years of financial management and reporting experience for public companies. He began his career and obtained his CPA at PricewaterhouseCoopers in the assurance practice holding positions of increasing responsibility through Senior Manager with a focus on public debt and equity offerings and acquisitions.

He is a graduate of Drexel University and is a member of the American and Pennsylvania Institutes of Certified Public Accountants.

He is based in Wayne, PA, USA.