Stefán Jökull Sveinsson Advisor and Board Member Stefan Jokull served as the Executive Vice President of Research and Development and a Member of the Executive Board at Actavis Group ehf. He served as Executive Vice President of R&D at Actavis LLC. He joined Actavis in 2002 following the merger of Delta and Pharmaco (now Actavis). He had worked at Delta since 1993 and served as its Managing Director of Development. Previously he was an Assistant Professor of Pharmaceutics.