Apple is trading higher by 0.63% at $160.85 early Monday after regulatory filings showed big-name money managers are buying up shares.
In an SEC filing on Monday, Buffett's Berkshire Hathaway disclosed it increased its Apple stake to $18.8 billion, or about 2.3% of the company.
Buffett wasn't the only famous investor piling into the tech giant.
David Tepper's Appaloosa Management announced it increased its Apple stake to $90 million.
Both firms may have changed their positions since the time of filing.
Shares of Apple are up 38.12% this year.
