"We allege a classic situation of the fox guarding the henhouse," said an SEC director.
The wearable technology company has sold 20.5 million devices since 2007 and recorded revenue of $745 million last year.
The online marketplace for handmade crafts raises $267 million and jumps to $30 a share by market close.
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.
Doing so puts the 128 dormant penny-stock companies out of reach of 'microcap fraudsters,' says the Securities and Exchange Commission.
A study of the effects of high-frequency trading on U.K. stock prices claims to show that HFT firms make for a more efficient market.
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.