The position will not be filled.
Mr. Mauboussin is currently promoting his book, “The Success Equation” and will announce additional plans shortly, Ms. Athridge said in an e-mail. He will remain an adjunct finance and economics professor at Columbia University.
Mr. Mauboussin started at Legg Mason in 2004 and worked closely with Bill Miller, chairman and former chief investment officer and portfolio manager of the Legg Mason Capital Management Value Trust.
“Since Bill has stepped off Value Trust and pulled back, it made sense for Michael to do some new things,” Ms. Athridge said.
Mr. Mauboussin could not be reached for comment.