LightSquared in Trouble?

Prominent hedge fund manager Phil Falcone's $7 billion Harbinger Capital Management has been hit by a series of high profile departures in the past few weeks, according to people familiar with the fund.

While some departures were voluntary, others were part of an effort to cut the fund's staff, as the firm's assets have shrunk from a peak of $26.5 billion in 2008, the sources said.

Those moves could have an impact on Harbinger's ability to secure additional funding for its satellite-plus-terrestrial Long Term Evolution wholesale network. About 40 percent of Harbinger's total capital is tied to LightSquared.

Whether the departures are related to perceptions about the chances of success, or not, LightSquared faced big challenges from the start. Mobile satellite networks have lost investors lots of money in the past.

Shrinking hedge fund Harbinger faces staff exits | Reuters