The presumed heir apparent to Bridgewater Associates founder Ray Dalio is discussing giving up his job as co-chief executive of the world’s biggest hedge fund, creating uncertainty about the future leadership of the firm.

Greg Jensen, 42 years old, has had talks internally about whether to hand off some or all of his responsibilities as co-CEO while remaining co-chief investment officer of the $154 billion firm alongside Dalio and his long-time partner Bob Prince, a person familiar with the matter said.