 BlackRock Inc NYSE:BLK is set to become the latest financial heavyweight to cut its workforce with 500 employees, around 3 of its payroll, to be laid off according to an internal email seen by Yahoo Finance. This week, after meaningful headcount growth in recent years, we are making some changes to the size and shape of our workforce, CEO Larry Fink and BlackRock president Rob Kapito said in a memo sent to staff on Wednesday. 