Shares of Apple Inc. fell less than 1% in late trading following the announcement of Tim Cook's resignation after nearly 15 years as CEO. Cook, who is 65 years old, will transition to the role of executive chairman, while John Ternus, currently 50, takes over as CEO. This leadership change has raised concerns among investors regarding Apple's future growth, particularly in the area of artificial intelligence (AI), where the company has lagged behind competitors. During Cook's tenure, Apple's annual profit grew to over $110 billion, and its market value increased to about $4 trillion. Ternus, who has been with Apple since 2001, is optimistic about the company's future and aims to uphold its values. However, he faces challenges including the lack of new product categories and recent executive departures, which have raised questions about the company's leadership depth. Despite these uncertainties, analysts remain positive about Apple's strong sales and cash flow, projecting potential stock prices to reach around $300 by September.