Investors closely monitor insider buys, as they can give hints surrounding the long-term picture.An insider is an officer, director, 10% stockholder, or anyone who possesses internal information because of their relationship with the company. It’s critical to note that insiders have a longer holding period than most, and many strict rules apply to their transactions.Several large-cap companies – Bristol-Myers Squibb (BMY) , Pfizer (PFE) , and Centene (CNC) – have seen recent insider activity. Let’s take a c ...