(Bloomberg) -- Two Sigma Investments waited four years to address vulnerabilities that hedge fund employees noticed in its investment models and violated a rule protecting whistleblowers ...

Two Sigma will pay $255 million to settle charges that the company ignored vulnerabilities in its investment models for years, the Securities and Exchange Commission said Thursday. The agency ...

Hedge Fund Two Sigma's Billionaire Founders Head to Arbitration, Bloomberg News Reports (Reuters) - Two Sigma Investments' billionaire founders, John Overdeck and David Siegel, are heading to ...