If you invested $10,000 in Berkshire Hathaway (NYSE: BRK.A) (NYSE: BRK.B) 30 years ago, how much money would you have today? You couldn't have invested only $10,000 in Berkshire in 1995 for three simple reasons: (1) Only Class A shares traded at the time, (2) the Class A share price was much higher than $10,000, and (3) fractional shares weren't available yet. A hypothetical investment of $10,000 in Berkshire Hathaway 30 years ago would be worth a whopping $14.2 million today, assuming you never sold.