Securities regulators concluded their investigation into significant investments Barry Diller, Alexander von Furstenberg, and David Geffen made in Activision Blizzard shortly before Microsoft Corp (NASDAQ:MSFT) acquired the company in 2022. The Securities and Exchange Commission (SEC) and the Justice Department investigated these options purchases for potential insider trading but found no grounds for charges, the Wall Street Journal reports. Microsoft completed its $75 billion acquisition of Ac