Updated with correction
Robert Manning, executive chairman at MFS Investment Management, plans to retire from the firm effective March 1, 2022, a spokeswoman said Thursday in an email.
Mr. Manning joined MFS in 1984 as a fixed-income research analyst and had several roles before ascending to the roles of CEO and chief investment officer in 2004.
He has been executive chairman since 2017.
CEO Michael W. Roberge will take on the additional role of executive chairman upon Mr. Manning's departure. Mr. Roberge became CIO in 2010 and co-CEO, along with Mr. Manning, in 2015 before becoming sole CEO in 2017.
As of Aug. 31, MFS Investment Management had $557 billion in assets under management.