EXCLUSIVE OFFER: Jim Cramer's Protégé, Dave Peltier, only buys Stocks Under $10 that he thinks could potentially double. See what he's trading today with a 14-day FREE pass.Insider activity alone isn’t enough to actually shift market prices. This day and age it’s the work of hedge funds that make it their daily business to buy, sell and move millions of shares every day that really get share prices moving. But hedge funds pay attention to insiders too, so insider activity can set a spark that puts institutional buying (or selling) in action. THE LIST So we were wondering, which companies have seen the greatest level of buying activity from insiders? To create this list, we started with a universe of 85 companies reporting significant insider buying over the last six months. To refine the list, we collected data on institutional transactions, and identified the names that have seen significant inflows during the current quarter. [Compare our final list below with the results of the same screen run on January 23, 2013. That list has an average 1-year return of 30%.] Sophisticated investors, like hedge fund managers, think these names are going higher. Insider executives seem to agree – do you? List average 1-year return at 67%.