The two co-founders of Google continued to remain as controlling shareholders, board members, and employees at Alphabet. Alphabet is the world's fourth-largest technology company by revenue and one of the world's most valuable companies.
The establishment of Alphabet Inc. was prompted by a desire to make the core Google business "cleaner and more accountable" while allowing greater autonomy to group companies that operate in businesses other than Internet services. Page and Brin announced their resignation from their executive posts in December 2019, with the CEO role to be filled by Sundar Pichai, also the CEO of Google. Page and Brin remain co-founders, employees, board members, and controlling shareholders of Alphabet Inc.
Google là Larry Page and Sergey Brin
On August 10, 2015, Google Inc. announced plans to create a new public holding company, Alphabet Inc. Google CEO Larry Page made this announcement in a blog post on Google's official blog. Alphabet would be created to restructure Google by moving subsidiaries from Google to Alphabet, narrowing Google's scope. The company would consist of Google as well as other businesses including X Development, Calico, Nest, Verily, Fiber, Makani, CapitalG, and GV. Sundar Pichai, Product Chief, became the new CEO of Google, replacing Larry Page, who transitioned to the role of running Alphabet, along with Google co-founder Sergey Brin.
According to Wikipedia