Pinnacle Investment Management

Navigator, an investment house backed by one of the hottest firms on Wall Street, has an unusual backstory. That hasn't stopped Australian investing royalty from piling into it.

The company will look to add more private market affiliates and its managing director Ian Macoun says Metrics Credit Partners has a lot more room to grow.

As insiders get the green light to trim their lucrative stakes, short sellers are circling the hot Mexican fast food chain.