Lockheed Martin has dropped its $4.4bn bid to buy the rocket engine maker Aerojet Rocketdyne after the US Federal Trade Commission sued to block the deal, claiming it would reduce competition and raise prices in the defence sector.
The collapse of the takeover is the second significant victory for the FTC in a week after SoftBank abandoned its proposed $66bn sale of UK-based chip business Arm to Nvidia in the face of resistance from the agency and other national competition regulators.
Lina Khan, FTC chair, has vowed to oversee much tougher enforcement of US competition rules as part of an effort by Joe Biden’s administration to tackle concentrations of corporate power across the economy.
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