shares dropped in the extended session Thursday after the toy maker’s quarterly results fell short of Wall Street estimates. Mattel shares fell 6.8% to $23.50 after hours. The company reported an adjusted first-quarter loss of 32 cents a share on revenue of $735.6 million. Analysts surveyed by FactSet had forecast a loss of 17 cents a share on revenue of $793.8 million. The company said sales of Barbie products fell 13% worldwide, while other brands of its toys for girls dropped 34%.