Musk Faces FTC Antitrust Review on Twitter Alongside Stock Probe

The U.S. Federal Trade Commission is reviewing Elon Musk’s $44 billion Twitter Inc. takeover, a person familiar with the deal said, setting up a deadline in the next month for the agency to decide whether to conduct an in-depth review of the transaction.

Under U.S. merger law, Musk is required to notify the FTC and the Justice Department of the transaction and wait at least 30 days before closing to allow an investigation into potential antitrust concerns. The FTC can ask for additional information, issuing what’s known as a second request, which would further delay closing.

An FTC spokesman declined ...