Three key members of the management team of 452 Capital, including the wife of co-founder Peter Morgan, have resigned without explanation leaving a question mark over the future of one of Australia’s most successful boutique fund managers.

The board told clients and major shareholders on Tuesday that its management team comprising Suellen Morgan, Mary Feros and Lyndsey Hancock did “not intend to continue to participate in the management of 452 Capital’s business after a period yet to be agreed with the board".