(Reuters) - Asset manager BlackRock's ( BLK ) top executive Mark Wiedman, who was touted to be a potential successor to CEO Larry Fink, is departing the firm, the Financial Times reported on Tuesday, citing four people close to the company.

BlackRock's ( BLK ) board described Wiedman in a regulatory filing last year as one of the three "senior leaders who we believe will play critical roles in BlackRock's ( BLK ) future", the report added.

BlackRock ( BLK ) did not immediately respond to a Reuters request for comment.