ImmunoCellular Therapeutics Ltd. CEO Andrew Gengos is resigning, though he will remain on the board.
The company appointed Anthony Gringeri to replace him.
Gringeri has been working at ImmunoCellular as senior vice president of strategic resources since August 2013.
The company said the change reflects its strategy to focus on the ICT-107 program, a dendritic-cell based immunotherapy that targets brain cancer stem cells.