Sundar Pichai became CEO of Google on August 10, 2015, when the company underwent a major restructuring, becoming a subsidiary of Alphabet Inc., the newly created holding company. As part of the restructuring, Larry Page stepped down as CEO of Google and became CEO of Alphabet, while Sundar Pichai took over as CEO of Google.

It wasn't a case of Sundar Pichai usurping the previous CEO, but rather a planned transition as part of a larger restructuring of the company. Pichai had been with Google for many years, and was a well-respected executive, having played a key role in the development of Google's Chrome browser and Android operating system. His appointment as CEO was widely seen as a positive step for the company, as he was seen as a capable leader with a strong track record of delivering results.
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