Complex sentence: A shareholder filed a lawsuit against InfoSpace and many of its executives, including Jain, in 2001, for allegedly misleading shareholders about the company's financials, then profiting by selling their own shares at their peak.
Split into simpler sentences: A shareholder filed a lawsuit against InfoSpace and many of its executives, including Jain, in 2001. He alleged Jain misled shareholders about the company's financials, then profiting by selling their own shares at their peak.