"The complaint alleges that during the Class Period, defendants made false and misleading statements and/or failed to disclose adverse information regarding Mattel’s business and prospects, including that prior to and during the Class Period, Mattel’s retail customers were loaded with extremely high levels of unsold Mattel product and, as a consequence, Mattel was exposed to the heightened risk that it would have to issue its retailers financial concessions (in the form of sales adjustments, discounts and promotions) to remove such excess inventory, as well as the heightened risk that Mattel would experience slower sales growth in future periods. As a result of defendants’ false statements and/or omissions, Mattel shares traded at artificially inflated prices of more than $33 per share during the Class Period. When the true details entered the market, the lawsuit claims that investors suffered damages. "
http://www.businesswire.com/news/home/20170628005915/en/EQUITY-ALERT-Rosen-Law-Firm-Announces-Filing