CEO Bunch sold 100,000 PPG shares ($13.8 million) and EVP J. Rich Alexander sold 56,800 shares ($7.8 million). Each exercised options on January 16 and sold them the same day, with Alexander adding another 10,000 shares to his sell order. According to http://seekingalpha.com/article/1123781-ppg-executives-actions-wave-red-flag-time-to-sell?source=yahoo
Why would they sell now and is this a major red flag?