Mattel (NASDAQ:MAT) stock is a hot topic on Friday after activist investor Barrington Capital expressed interest in making changes at the family entertainment company. Barrington Capital takes issue with the fact that MAT stock is down 13.2% over the last two years. The activist investor notes that this has the company’s shares lagging 22.3%. Barrington Capital has presented Mattel Executive Chairman and CEO Ynon Kreiz with a few measures to overcome this problem and create shareholder value. That includes ...