Warren Buffet's company, Berkshire Hathaway, just made its biggest purchase in the company's history.
According to CNN, Berkshire Hathaway brought Burlington Northern Sante Fe for $44 billion.
Burlington Northern is a railroad operation. However, they also own other businesses such as: Fruit of the Loom, and Geico.
CNN states that news of the acquisition caused Burlington Northern's stocks to rise 28% on the morning of the announcement.