FTC appeals Meta antitrust win, reviving high-stakes fight over Instagram and WhatsApp deals
The FTC says it will appeal a court ruling that favored Meta in a landmark monopolization case, keeping alive an effort that could reshape how U.S. regulators challenge tech acquisitions and platform dominance.
The Federal Trade Commission has filed to appeal a November 2025 court ruling that favored Meta Platforms in the agency’s monopolization case, reigniting a legal fight that targets the tech company’s past acquisitions of Instagram and WhatsApp and its alleged dominance in personal social networking.
The appeal signals that U.S. regulators are not ready to accept defeat in one of the most closely watched tech competition battles of the decade. At trial, the FTC argued that Meta maintained power not primarily through better products but by identifying emerging rivals and buying them before they could grow into serious competitive threats. Meta has disputed the characterization, emphasizing fierce competition and consumer choice.
The underlying case matters well beyond Meta. It is a bellwether for whether U.S. antitrust agencies can use existing law to unwind major platform acquisitions years after the fact, and whether courts will accept market definitions and competitive-harm theories tailored to free, ad-supported social products where users pay with attention and data rather than cash.
While the trial court found the FTC did not meet its burden under the facts presented, the agency’s appeal keeps the controversy alive. A successful appeal could lead to new proceedings and potentially reopen the question of structural remedies—such as separating business units—although that outcome is far from guaranteed and would face additional legal hurdles.
The dispute also lands amid a broader U.S. policy push to constrain digital gatekeepers. Regulators, lawmakers, and state attorneys general have increasingly emphasized that big-tech mergers can entrench power in ways that are hard to reverse once ecosystems, data advantages, and network effects accumulate.
For the tech industry, the FTC’s move is another signal that large acquisitions will continue to face scrutiny, and that even deals completed years earlier can remain vulnerable if enforcers believe they weakened competition. For Meta, the appeal means ongoing uncertainty and legal cost, plus the reputational drag of a high-profile challenge that keeps questions about market power in the public eye.
The appeal will proceed in the U.S. Court of Appeals for the District of Columbia Circuit. The timeline for briefing and argument will determine how quickly the case returns to center stage, but the strategic message is immediate: federal enforcers intend to keep pressing a theory that platform dominance can be illegally preserved through acquisition-driven elimination of rivals.