Missouri Portland Cement Co. v. Cargill, Inc.

Background

A large private conglomerate, Cargill, made a cash offer to buy all of Missouri Portland Cement’s common stock. Missouri Portland sued in federal court to stop the offer, claiming the takeover would violate antitrust law. The District Court issued an injunction stopping the takeover, the Court of Appeals reversed, and Missouri Portland obtained a temporary pause of that reversal until the Supreme Court acted.

Reasoning

The narrow question before the Supreme Court was whether the temporary pause of the appeals court’s mandate should continue while the antitrust case goes to trial. The Court granted the motion to lift that pause, thereby removing the injunction that had been blocking Cargill’s takeover efforts. Lower courts disagreed on the significance of Cargill’s likely entry into cement markets, and the District Court had found substantial competitive concerns, including heavy concentration in four metropolitan markets and the prospect that Cargill’s large financial resources would increase barriers to entry.

Real world impact

Because Cargill had already acquired 18% of Missouri Portland’s stock, lifting the pause lets it seek controlling interest and influence the target before the merits are finally decided. The District Court emphasized concentrated local markets (St. Louis, Kansas City, Memphis, Omaha) where top firms control at least 88% of sales, and warned the takeover could eliminate a fringe competitor and strengthen dominance. This ruling is not a final decision on the antitrust claims and could be changed after a full trial.

Dissents or concurrances

Justice Douglas dissented, arguing corporations have no constitutional right to take over other firms and that the stay should have remained until the merits were adjudicated to preserve effective relief.