Mr Tarnok has served on Keryx’s board of directors since September 2007. He spent the majority of his career at Pfizer, which he joined in 1989 as finance director for US manufacturing. From 2000 to 2007, Mr Tarnok served as senior vice president of finance in Pfizer’s US pharmaceuticals division.
Prior to joining Pfizer, Mr Tarnok worked primarily in financial disciplines for ITT Rayonier, Celanese Corporation and Olivetti Corporation of America.