https://www.cnbc.com/2018/05/04/apple-aapl-stock-warren-buffett-is-keeping-shares-above-water.html

Apple briefly surpassed its previous high of $183.50 Friday.

The stock was pushed higher by news that Warren Buffett's Berkshire Hathaway had bought 75 million shares in the first quarter.

Apple CEO Tim Cook said the company is "thrilled" to have Buffett and Berkshire as a major investor