Star Scientific Inc. announced that it CEO and founder Jonnie R. Williams Sr. and president Paul Perito will step down after its shareholder meeting Dec. 27, 2013. Dr. Michael Mullan, CEO of Roskamp Institute, is expected to replace Williams following a shareholder vote at the annual meeting.

He also heads Archer Pharmaceuticals Inc. Dr. Christopher Chapman, who runs a pharmaceutical consulting firm, is expected to serve as president.