Arthur Lahr website
Arthur Lahr

Chief Executive Officer

Arthur Lahr is Chief Executive Officer of Kiadis Pharma. Prior to joining Kiadis Pharma, he was Chief Strategy Officer and member of the Management Committee at Crucell from 2001 until its acquisition by Johnson & Johnson in 2011. Before that he was consultant at McKinsey & Company and engineer at Unilever. At present, Mr. Lahr also serves as a member of the supervisory board of Sanquin, the Dutch national plasma and blood product supplier. Mr. Lahr holds a Masters degree in Applied Physics from the University of Delft, The Netherlands, and an MBA from INSEAD, France.

Scott A. Holmes

Chief Financial Officer (from January 2019)

Mr. Holmes, who currently serves as Senior Vice President and CFO at Keryx Biopharmaceuticals, will join the Company following the completion of Keryx Biopharmaceuticals merger with Akebia Therapeutics, which is expected to close by the end of 2018. Prior to Keryx he was Senior Vice President of finance, investor relations and treasurer at AMAG Pharmaceuticals, during a period of high growth driven by acquisitions and public financings.


Prior to this he held senior roles at Molecular Biometrics, On-Q-ity and Dynogen. Mr. Holmes started his career at Ernst & Young, in both the Assurance and Transaction Services practices, and while at Ernst & Young he earned his Certified Public Accountant certificate in the Commonwealth of Massachusetts.  He holds a MS/MBA degree from Northeastern University and a BA in History from Middlebury College.

Mark Schaefer

Chief HR Officer

Mr. Mark Schaefer has 25 years of HR experience and joins from Aenova Holding, where he was Senior Vice President of Global HR. The Aenova Group is a global leader in the pharmaceutical and healthcare industries and one of the leading contract manufacturers in Europe. Prior to this Mr. Schaefer worked in senior global HR roles at West Pharmaceuticals, 3M, Sony and GE. He holds a Honors BA in Economics and Commerce as well as a Master’s degree in Industrial Relations from the University of Toronto. Mr. Schaefer is a Canadian citizen.

Jan Feijen

Chief Operations Officer

Jan Feijen is Chief Operations Officer of Kiadis Pharma. Prior to joining Kiadis Pharma, he was Vice President Manufacturing and Technical Operations, Platform Lead Vaccines and Advanced Therapies at Janssen (Pharmaceutical Companies of Johnson & Johnson). Prior to that he held various executive positions at Crucell, Avebe and Gist Brocades. Mr. Feijen holds a Masters degree in Applied Physics from the University of Delft, The Netherlands. 

Andrew Sandler Website
Andrew Sandler

Chief Medical Officer

Andrew Sandler is the Chief Medical Officer at Kiadis Pharma. Prior to joining the company, he was Senior Vice President, Medical Affairs, at Medivation (now part of Pfizer). Prior to that he was CMO at Dendreon Pharmaceuticals and Spectrum Pharma. He has also held senior-level positions with several other leading biotechnology and pharmaceutical companies, including Bayer Healthcare, Berlex and Seattle Genetics. Dr. Sandler obtained his MD from Mount Sinai School of Medicine, New York and completed a fellowship in medical oncology at University of California San Francisco. A US citizen, Dr. Sandler is a board certified medical oncologist and has treated many patients with hematologic malignancies, including bone marrow transplant patients.

Karl Hard Website
Karl Hård 

Head of IR and Communications

Karl Hård is the Head of IR and Communications. Before joining our team, he has spent almost 20 years at AstraZeneca PLC based in Sweden and the UK. Over a period of 10 years, he held senior roles within Investor Relations, latterly as head of IR. Prior to that, he worked as Global Program Director, establishing new external collaborations, and as Director in Biological Chemistry, leading research into novel pharmacological targets. Karl’s scientific experience covers numerous fields, including oncology and immunology, as evidenced by over 40 published scientific articles in peer-reviewed international journals.

James Joy
James Joy

General Counsel and Company Secretary

James Joy is General Counsel and Company Secretary of Kiadis Pharma.  Mr. Joy has over twenty years of blue chip experience as an international corporate lawyer advising multinational businesses in a variety of industries, having served as General Counsel at C-Map AS, TomTom NV and Navigator Asset Management and VP Legal at Royal Ahold NV.  Previously, Mr. Joy practiced law in New York and London with Latham & Watkins and Norton Rose Fulbright where he advised technology, media and industrial clients on corporate finance and mergers and acquisitions.  Mr. Joy holds a bachelor’s degree in Economics from Heriot-Watt University and a Juris Doctor degree from Tulane Law School.  Mr. Joy is a member of the New York State Bar.