Berkshire reported that its Apple bet was worth $135.4 billion, implying around 790 million shares. That would mark a decline of around 13% in the stake.
Artificial intelligence has both "enormous potential for good and enormous potential for harm," the investing guru said during Berkshire's annual meeting.
"Singapore will remain the best geography in the world to do business, as it has for the past 16 years," according to the EIU's business environment ranking.