Sijmen de Vries , MD MBA
Executive Director and Chief Executive Officer
Sijmen de Vries

Dr. De Vries has been our Chief Executive Officer since 2008, and he has also served in the capacity of interim Chief Financial Officer from May 2020 through November 16, 2020, upon the commencement of Mr. Wakkerman’s tenure as Chief Financial Officer. Dr. De Vries is responsible for daily management of the Company and the execution of the strategy. Prior to joining Pharming, Dr. De Vries was the CEO of 4-Antibody and Morphochem AG. Dr. De Vries also held senior business and commercial positions at Novartis, Novartis Ophthalmics and at SmithKline Beecham Pharmaceuticals plc. Dr. De Vries holds an MD degree from the University of Amsterdam and an MBA in General Management from Ashridge Management College (UK). Dr. De Vries is also a non-executive director of Midatech Pharma plc.

Jeroen Wakkerman
Chief Financial Officer
Jeroen Wakkerman
Mr. Wakkerman joined Pharming in 2020 as Chief Financial Officer. He joined Pharming from Nutreco N.V., a global leader in animal nutrition and aquafeed, where he was CFO for almost five years. Prior to this, Jeroen was CFO of SHV Energy N.V., Finance Director at Calor Gas (UK) and has held several financial and commercial positions at Unilever and Rabobank. Mr. Wakkerman holds a MSc degree in Business Economics from the University of Groningen (the Netherlands) and is a Chartered Treasurer (UK) and a Chartered Management Accountant (UK). 
Prof. Bruno M. Giannetti , MD PhD
Chief Medical Officer
Bruno Giannetti
Bruno M.L. Giannetti, MD PhD. Dr. Giannetti has been our Chief Medical Officer since 2019. Dr. Giannetti served as our Chief Operating Officer from 2006 until 2019. Prior to joining Pharming in 2006, Dr. Giannetti was the CEO of AM Pharma B.V., President and founder of CRM Clinical Trials GmbH (now Topcro GmbH) and President and CEO of Verigen AG. He has served as senior management consultant for pharmaceutical R&D projects at Coopers & Lybrand (in Switzerland and the UK). Dr. Giannetti was also worldwide Vice-President Marketing and Medical Information at Immuno, Austria and Head of Clinical Research at Madaus AG. Dr. Giannetti holds a PhD in Chemistry and a MD PhD degree in Medicine from the University of Bonn and has been appointed visiting Professor at the Pharmaceutical Faculty of the University of Seville (Spain).
Ruud Outersterp
Chief Ethics & Compliance Officer
Ruud van Outersterp
Ruud has been our Chief Ethics & Compliance Officer since May 2021. Ruud served as our Company Secretary from 1 April, 2020. Prior to joining Pharming, Ruud held several senior leadership positions at ABN AMRO and its predecessors, including the positions of Global Head of Legal and Company Secretary, and as senior legal counsel at former Dutch aircraft manufacturer Fokker. Ruud is also a member of the supervisory board of a healthcare institution and is a teacher at the Governance University in Driebergen (the Netherlands).
Mireille Sanders , MSc
Chief Operations Officer
Mireille Sanders
Mrs. Sanders has been our Chief Operations Officer since 2020. Prior to this Mrs. Sanders was our Senior Vice President, Operations from when she joined the company in 2019. From 2016 until 2019, Ms. Sanders served as Head of Clinical Supply Chain Strategic Management and Systems at Janssen Pharmaceuticals, a Johnson & Johnson company. Prior to Janssen, Ms. Sanders held senior positions at MSD/Merck, from 2007 until 2015. She holds a MSc in Chemical Engineering from the Technical University Eindhoven in the Netherlands.
Stephen Toor
Chief Commercial Officer & General Manager Americas
Stephen Toor
Mr. Toor has been our Chief Commerical officer & General Manager Americas since 2020. Previously he served as President and General Manager of Pharming Healthcare, our US operations from 2019 to 2020. From 2017 to the end of 2019, Mr. Toor was the Senior Vice President and General Manager, US. Prior to Pharming, Mr. Toor was Senior Director, Sales and Marketing – Immunology, Orphan and Mature Brands at Bausch Health (formerly Valeant) from 2013 to 2016. Prior to 2013, Mr. Toor held positions at Pharmacia/Pfizer and ScheringPlough/Merck. He holds a BA (Hons) in European and American History from Manchester Metropolitan University.