The U.S. Department of Justice has expanded its antitrust review of Fox Corporation’s planned acquisition of Roku after requesting additional information from both companies, a move that could extend the regulatory process for the $22 billion transaction.

The DOJ issued what is known as a “second request” on Sept. 8, requiring Fox and Roku to provide additional data and documents about the proposed merger. Such requests are part of the federal antitrust review process and indicate that regulators want more information before deciding whether the transaction can proceed.

Fox announced in June that it had agreed to acquire Roku in a cash-and-stock transaction valued at approximately $22 billion in enterprise value. Under the agreement, Fox would pay $96 in cash and 0.9693 shares of Fox Class A stock for each Roku share.

The proposed combination would bring Fox’s news, sports and entertainment programming together with Roku’s connected-TV platform, which reaches more than 100 million global streaming households. Fox also owns the Tubi streaming service. The companies have said the combination would create one of the largest streaming businesses in the United States.

The expanded review is focused in part on how the combined company could affect competition in streaming and connected television. Critics of the transaction have raised concerns that Fox could give preferential treatment to its own programming or services once it controls Roku’s platform.

Roku operates a platform that connects consumers with content from numerous providers, giving the company an important position in the connected-TV market. Fox, meanwhile, has been expanding its streaming presence through Tubi and other digital services while maintaining major sports and news operations.

The companies previously said they expected the transaction to close during the first half of 2027. The additional DOJ review could lengthen that timeline, although the second request does not mean regulators have decided to block the merger.

The transaction has already attracted scrutiny from lawmakers. In July, Democratic Sen. Elizabeth Warren and Rep. Becca Balint urged federal antitrust officials to closely examine the proposed acquisition and ensure the review was conducted independently.

Fox and Roku have said they intend to cooperate with the government's review as the companies work toward completing the proposed acquisition.