During Berkshire Hathaway's (BRK-A, BRK-B) annual meeting, Chairman and CEO Warren Buffett discussed the top market players and current trends the investment firm is closely monitoring. Yahoo Finance's Seana Smith breaks down three key takeaways from the meeting.

Buffett was bullish on Apple (AAPL), claiming that the tech giant will likely remain the top holding by the end of the year. However, the CEO expressed serious concern about artificial intelligence, comparing it to the development of a nuclear weapon and stressing some of the dangers the technology poses.

The investment firm also announced it no longer has a stake in Paramount (PARA), and Buffett took responsibility for the investment that lost the company "quite a bit of money."

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This post was written by Melanie Riehl