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

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

After the Federal Reserve announced its latest interest-rate decision, financial markets sold off as the pace of future rate cuts appears that it will be slower than most had expected. During the sell-off, Warren Buffett-led Berkshire Hathaway bought shares of three stocks:

Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) has been one of the most successful stock investments of all time. Plus, many people reading this aren't old even enough to have bought Berkshire stock in the 1960s.

Warren Buffett's Berkshire Hathaway has added to its holdings of Occidental Petroleum and SiriusXM, sending shares of both companies higher Friday.

Despite Buffett overseeing stakes in nearly four-dozen securities, the lion's share of Berkshire's invested assets have been put to work in seven top ideas.