When did Elon Musk become CEO of Twitter after acquiring the company?

Elon Musk became Twitter’s chief executive in October 2022 after completing the acquisition.

Musk agreed to buy Twitter in April 2022 for $44 billion. After months of disputes over the number of spam and bot accounts on the platform, he completed the transaction on October 27, 2022.

The acquisition immediately changed Twitter’s ownership and leadership. Musk dismissed chief executive Parag Agrawal and other senior executives and took the company private. He later announced major changes to the platform’s policies, verification system, and business direction.

Twitter was subsequently rebranded as X in 2023. The month in this answer refers to Musk’s assumption of the chief executive role after closing the deal, not to the earlier announcement that he had agreed to purchase the company.