EL SEGUNDO, Calif.--(BUSINESS WIRE)--Mattel, Inc. (Nasdaq: MAT) today announced that it plans to release its second quarter 2015 financial results on Thursday, July 16, 2015 at approximately 4:05 p.m. Eastern time. Following this, the company will host a conference call and webcast at 5:00 p.m. Eastern time. The second quarter financial results conference call will be webcast on the "Investors" section of Mattel’s corporate website, http://investor.shareholder.com/mattel/events.cfm. To listen t