By Jonathan Stempel (Reuters) -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.

Buffett is perhaps the world's most widely revered investor, given the staggering and market-beating returns Berkshire Hathaway has delivered during his six-decade tenure as the conglomerate's chief. As chairman and CEO, Buffett transformed the textile firm into a diversified investment powerhouse with a market cap of $1 trillion.