Philip Morris Cos. Inc., New York, terminated all of its active equity managers and placed the roughly $2 billion they managed into passive strategies. According to sources familiar with the workings of the $8 billion defined benefit plan, the reason was underperformance. The terminations cover all active U.S. equity managers, as well as real estate investment trust, international and emerging market equity managers, the sources said. Mark Werner, vice president benefit investments, refused to comment According to information submitted for P&Is Top 1,000 pension funds survey, the funds active domestic and international equity managers as of Sept. 30 were: Alliance; Goldman Sachs; Sanford C. Bernstein; Neuberger Berman; Wellington; Merrill Lynch Mercury; WorldInvest; Morgan Stanley; and Ardsley. Officials at the firms refused to comment or did not return phone calls by press time. State Street Global already manages indexed equities for the fund; sources said Philip Morris has added Barclays Global.