Berkshire Hathaway has quadrupled down on Domino's Pizza since first taking a position in 2024.In the third quarter of 2024, Berkshire Hathaway bought 1.28 million shares of Domino's Pizza (DPZ 1.36%) and has added to its position three times since. Berkshire now holds 2.6 million shares worth more than $1 billion. While not a big percentage of Berkshire's overall portfolio, it's notable that the conglomerate has bought shares on four different occasions over the last year, as it has been a net seller of st ...