Buffett first invested in Verisign ( VRSN -0.27%) in 2012, and at the time of this writing, the shares have gone on to increase by at least 325% since then. He continued to buy shares in 2013 and 2014, but it has been more than 10 years since he added to the position. Here's why he's coming back to Verisign now.

Whenever the great Warren Buffett makes a move, some of his many followers are sure to scramble to follow in his footsteps. Indeed, Buffett and Berkshire Hathaway (NYSE:BRK-B) have been major net sellers of stock of late.

Investors can often benefit from following the recent movements and decisions made by the biggest names in the market, especially if they can work through reverse engineering some of the reasoning behind these decisions.

Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) owns about 45 stocks in its $300 billion portfolio, many of which were hand-selected by CEO and legendary investor Warren Buffett himself. While there's a solid case to be made in favor of pretty much every stock Berkshire owns,