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Aerojet Rocketdyne Holdings, Inc. is a holding company of Aerojet Rocketdyne, an American manufacturer of rocket, hypersonic, and electric propulsive systems for space, defense, civil and commercial applications. The El Segundo, California company traces its origins to the General Tire and Rubber Company established in 1915, later becoming GenCorp in 1984, and adopting its current name in April 2015.
In addition to Aerojet Rocketdyne, the holding company also owns the real estate firm Easton Development Company, LLC through which it owns over 12,000 acres of land near Sacramento, California originally utilized for Aerojet's operations in testing and manufacturing dating back to the 1950s, however due to the evolution of the firm and propulsion technology, about half of this land is now being redeveloped for residential use by the company.
On December 20, 2020, Lockheed Martin announced plans to acquire Aerojet Rocketdyne for $4.4 billion; however in January 2022, the FTC sued to block this deal on a 4-0 vote on grounds that this would eliminate the largest independent maker of rocket motors.
