A Connecticut venture capital executive accused of insider trading and of cheating his clients out of tens of millions of dollars has fled the country, the U.S. Securities and Exchange Commission said. Iftikar Ahmed, a former general partner at Oak Investment Partners, left the United States some time before May 18 in violation of a judge’s order in the criminal insider trading case restricting his travel to three U.S. states, the SEC said in a court filing last week.