The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage. NEW YORK ( Insider Monkey) -- Martin Whitman is the founder, co-chief investment officer, and portfolio manager of the Third Avenue Management, which has nearly $5 billion in assets under management. Asset Management firms devote significant resources to researching stocks. They sometimes even cross the line to try to obtain material non-public information before investing. Additionally, corporate insiders have material non-public information and they sometimes trade based on such information. Other times they have an edge because they know their companies and industries better than almost all other investors do. We believe that by imitating the stock picks of these smartest investors in the world, investors are more likely to beat the market in the long term. Below we compiled a list of stocks both Whitman and insiders are bullish about. All stocks are in Whitman's portfolio and were purchased by at least one insider during the past three months.