Aeropostale, Under Pressure, Adopts Poison Pill

Struggling teen clothing retailer Aeropostale, under pressure from some investors to sell itself, adopted a poison pill that would be triggered if a stockholder buys 10 percent of the company. Shareholder Crescendo Partners urged Aéropostale last week to sell itself, joining a list of investors expressing frustration about the fading fortunes of the retailer, which has lost money for three quarters in a row. Aéropostale, which has warned of another quarterly loss when it reports next week, has been hit along with rivals by heavy discounting going into the holiday shopping season.