A spokesperson for the IOOF-controlled group told InvestorDaily Mr Bearman made the announcement in April, with relevant parties informed by letter and a follow-up meeting.
IOOF is currently undertaking a review of Perennial's operation structure, said the spokesperson.
As part of the review, IOOF will make a decision about Mr Bearman's duties going forward, she said.
"The appropriate governance is in place, with suitable delegations and authorisations passing to the experienced management team who continues to run the business on a day-to-day basis," said the spokesperson.