Key Takeaways Insider buys are often watched closely among investors. Insider purchases shouldn't be seen as an explicit buy signal, as many strict rules apply to them. CHD, LLY, and VTRS have all seen their respective CEOs buy shares over the past month. Investors closely monitor insider buys, as they can give hints surrounding the long-term picture.But it’s critical to note that insiders have a longer holding period than most, and many strict rules apply to their transactions.Recently, CEOs of several com ...