The tax-advantaged specialty finance company will target middle-market companies with pre-tax earnings of $5 million to $75 million.
The Spanish-language media company's public listing could raise as much as $1 billion and value the company at $20 billion.
The fund manager sold investors on pre-IPO shares of Twitter and Uber, but couldn't deliver the promised shares and profits.
Wittman's hiring could mean that Dropbox is getting closer to an initial public offering.
Box had delayed an earlier IPO that had been filed last March partly because of doubt about its big sales and marketing spend.
Shake Shack now has more than 63 outlets in 30-plus cities from London to Dubai.
Six technology IPOs priced last week, with mixed results.
An early backer of Alibaba, Yahoo could make as much as $9 billion before taxes from selling shares. But what will CEO Marrisa Mayer do with the cash?
The NYSE tends to delay the start of trading by at least 15 minutes, but Alibaba's IPO might begin later than usual due to size and investor interest.
Set to debut Sept. 19 on the New York Stock Exchange under the ticker symbol "BABA," Alibaba's IPO is poised to be the largest ever.