VeriSign shares fell on Tuesday after Warren Buffett's Berkshire Hathaway sold nearly one-third of its stake in the internet infrastructure and domain name registry company for $1.23 billion.

Its stock is still reasonably valued relative to its growth potential. Image source: . Berkshire hasn't bought or sold any shares of American Express since 2012. Let's see why Buffett considered it to be such a reliable long-term investment -- and why it's a great place to park a fresh $1,

Warren Buffett’s Legacy at Berkshire Hathaway For over six decades, Warren Buffett has transformed Berkshire Hathaway (NYSE:BRK-A)(NYSE:BRK-B) from a struggling textile company into a global investment powerhouse.