Warren Buffett is one of the most widely followed investment managers in the world. And there's good reason for that. His track record of market-beating returns dates back to the 1950s when he founded Buffett Limited Partners.

Warren Buffett’s Berkshire Hathaway (BRK.A) (BRK.B) has recently increased its stake in Sirius XM Holdings Inc. (SIRI), now owning over 35% of

Warren Buffett’s Berkshire Hathaway has spent another $54 million to purchase Sirius XM stock, giving it a stake of more than 35% in the satellite-radio company.

Berkshire Hathaway (NYSE: BRK.B) (NYSE: BRK.A) enables people to invest with one of the greatest investors of all time, Warren Buffett. The core of Berkshire's empire is insurance companies, such as GEICO and General Re.

Berkshire Hathaway offers a promising investment opportunity with a strong portfolio and cash reserves, despite short-term risks. Explore more details here.

Berkshire Hathaway first bought Apple ( AAPL 1.86%) shares in the first quarter of 2016. That was a wildly successful decision, as the "Magnificent Seven" stock has soared 797% since the start of that year (as of Jan. 31).

Warren Buffett says he never tried to make money on the stock market. That might sound a little strange coming from the chairman and chief executive of Berkshire Hathaway (BRK.A) , who according to the Bloomberg Billionaire Index is the world's ninth richest man 💵💰Don't miss the move: Subscribe to TheStreet's free daily newsletter 💰💵 But we'll let the Oracle of Omaha explain what he means.