Let the good times roll, Mr. Musk later tweeted after writing “the bird is liberated.”
According to reports, several senior employees, including the boss, Parag Agrawal, have been let go.
According to Reuters, Mr. Agrawal and two other executives were led out of Twitter’s San Francisco offices on Thursday night.
Months of legal fighting have come to an end with the completion of the purchase, but it has raised concerns about the platform’s future course.
The takeover was confirmed in a document submitted with the US Securities and Exchange Commission on Thursday.
On Friday, the New York Stock Exchange said that trade in Twitter’s shares had been halted, citing the “merger effective” as the cause.
According to US media sources, chief financial officer Ned Segal and the company’s top legal and policy leader, Vijaya Gadde, are going with Mr. Agrawal.
The resignation of the executives seems to be confirmed by Twitter co-founder Biz Stone. He called all three of them “huge talents” and “wonderful humans” in a tweet in which he congratulated them for their “combined contribution to Twitter.”
Bret Taylor, who had been the chairman of Twitter since last November, updated his LinkedIn profile to reflect his resignation from the position.
Mr. Musk, who calls himself a “free speech absolutist,” has criticised Twitter’s leadership and its moderating practises.
They argued over the acquisition’s terms, and Mr. Musk accused Twitter of giving false information about the company’s user base.