 Sinclair Broadcast Group Inc NASDAQ:SBGI shares traded up 13.1 during mid-day trading on Thursday after an insider bought additional shares in the company. The company traded as high as 16.22 and last traded at 14.36, 3,692,148 shares changed hands during mid-day trading. An increase of 74 from the average session volume of 2,124,844 shares. The ... 