Elon Musk’s artificial-intelligence startup xAI has acquired X, the social-media platform he also owns, in an all-stock deal ...

However, four large ad agencies—WPP, Omnicom, Interpublic Group and Publicis—have recently agreed deals, or are in talks, to ...

Elon Musk has officially announced the sale of X in an "all-stock transaction" — but not to a competitor. Instead, the ...

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