BlackRock CEO Larry Fink is officially a billionaire, Bloomberg reports. : Larry Fink, the chairman and CEO of investment management company BlackRock, is one of the latest Wall Street investors to surpass $1 billion in personal wealth, according to the Bloomberg Billionaires Index. BlackRock, the world's largest money manager, has $6.3 trillion in assets. It dominates the market in passive-investments, according to a Bloomberg report. First quarter results beat estimates despite a cooling off in the amount of money flowing into low-fee exchange-traded funds. Revenue rose 16 percent from last year's first quarter.