Warren Buffett's Berkshire Hathaway sold over 116 million shares of Apple stock in the first quarter, worth over $21 billion. Berkshire is taking advantage of historically low 21% corporate tax rates to realize significant gains on its Apple investment. Berkshire's average purchase price of Apple shares was just under $40, and it sold at more than $180 per share, representing a profit of more than 350%. Apple's revenue growth peaked and began declining in mid-2022.