U.S. arms maker Lockheed Martin Corp called off plans on Sunday to acquire rocket engine maker Aerojet Rocketdyne Holdings Inc for $4.4 billion amid opposition from U.S. antitrust enforcers.
The Federal Trade Commission sued to block the deal in late-January on the grounds that it would allow Lockheed to use its control of Aerojet to hurt other defense contractors. Missile maker Raytheon Technologies was an outspoken opponent of the proposed acquisition.
