At Stockpickr.com we keep track of the Top 10 Insider Purchases and Buybacks each week.Despite the stock market's strong move higher, we continue to see boards of directors of various companies initiate stock-buyback programs, whereby they are publicly hinting that they believe their stocks offer the best value for idle cash. The same can be said for insider purchases. Whether it's CEOs or directors who are putting up their own cash to buy shares of stock in their respective companies, they are signaling to the public that they are confident there is upside value to be found. These types of purchases, on top of piggybacking other smart investors, offer a nice starting point for finding your next buying opportunity. ConAgra ( CAG) makes this week's portfolio because the packaged food supplier recently added $500 million to its stock-buyback plan. And in another recent move to return capital to shareholders, the company bumped its quarterly dividend to 19 cents a share from 18 cents a share.