VeriSign is ranked 5th in the S&P 500 for the highest profit margin, at about 56%, tied with Nvidia, according to third-quarter financial data.

Warren Buffett’s Berkshire Hathaway Inc. has been busy over the past week buying stock in an internet domain-name registry company, to extend its stature as the company’s largest shareholder.

Warren Buffett has invested more than $74 million in a Reston company best known for controlling internet domains for organizations across the globe.

Warren Buffett reportedly manages about 90% of Berkshire Hathaway's (NYSE: BRK.A) (NYSE: BRK.B) equity securities portfolio, while understudies Todd Combs and Ted Weschler handle the rest. The company does not disclose which investment manager makes each individual trade,

Warren Buffett, the iconic investor and chairman of Berkshire Hathaway (NYSE:BRK), is renowned for his timeless advice on wealth-building. What Happened: With a net worth of approximately $142 billion,

Geico, and pension plans of other Berkshire Hathaway units bought nearly $30 million of shares of domain-name registry firm VeriSign.