He will leave his current position on Oct. 1.
The previous CEO is staying on as President and Chairman.
He focuses on debt investment originations and capital formation.
The transaction was completed on Jan. 28.
Plan will further discuss a fee proposal with at least one firm before making a selection in a general investment consultant search.
He has served as president and ceo since April.
The fund closed with over $4.8 billion in commitments.
His fellow co-head will assume sole responsibility for the unit.
The U.S. business is rebranding as Agilis and is headquartered in Boston.
Departure follows those of two others at the firm earlier this month.