Executive Committee
Executive Committee

Sijmen de Vries, MD MBA
Executive Director and Chief Executive Officer
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
Mr. Wakkerman has been our Chief Financial Officer since November 2020. From 2015 to 2020, Mr. Wakkerman served as Chief Financial Officer of Nutreco N.V., a global leader in animal nutrition and aquafeed. Prior to that, Jeroen served as Chief Financial Officer of SHV Energy N.V., as finance director at Calor Gas (UK) and has also held several financial and commercial positions at Unilever and Rabobank. Jeroen holds an MSc degree in Business Economics from the University of Groningen and is a Chartered Treasurer (UK) and a Chartered Management Accountant (UK).


Prof. Bruno M. Giannetti, MD PhD
Chief Medical Officer
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).
Anne-Marie de Groot
Chief Ethics & Compliance Officer
Prior to being appointed Chief Ethics & Compliance Officer on 15 December 2020, Ms. De Groot served as our Senior Vice President, Organizational Development since 2016. From 2014 to 2015, Ms. De Groot was our Director of Corporate Development. Prior to 2014, Ms. De Groot held various positions at Randstad, Janssen Pharmaceuticals and Pharming. She holds a Bachelor in Social Work and a Bachelor in Human Resources Management from Hogeschool Leiden.


Mireille Sanders, MSc
Chief Operations Officer
Prior to being appointed Chief Operations Officer on 15 December 2020, Mrs. Sanders served as our Senior Vice President, Operations since 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 an MSc in Chemical Engineering from the Technical University Eindhoven in the Netherlands.
Stephen Toor
Chief Commercial Officer and General Manager Americas
Prior to being appointed Chief Commercial Officer and GM Americas on 15 December 2020, Mr. Toor served as President and General Manager of Pharming Healthcare, our US operations, since 2020. From 2017 to 2020, 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.
