Harbinger Capital Partners, the investment fund led by Philip Falcone, has sold its stake in Clearwire and reduced its stake in Sprint Nextel, filings made to the US Securities and Exchange Commission revealed – although the reason for the disposals was not disclosed. Harbinger is also behind LightSquared, the US venture set to deploy a wholesale LTE network in North America, and is an investor in satellite/terrestrial hybrid operator TerreStar.