This investment signifies Buffett's re-entry into UNH after liquidating his entire position back in 2010, indicating that he perceives significant value at ...

If any investor has stood the test of time, it is Warren Buffett, and with good reason. For years, the “Oracle of Omaha” has had a rock-star-like presence in the investing world, and his annual ...

The upward revision follows Warren Buffett’s Berkshire Hathaway’s (NYSE: BRK.A) recent $1.6 billion investment in UnitedHealth.