Orbital ATK Inc (OA) Exchange: NYSE

DELISTED - Orbital ATK, Inc. designs, builds, and delivers space, defense, and aviation-related systems in the United States and internationally. It operates through three segments: Flight Systems Group, Defense Systems Group, and Space Systems Group. The Flight Systems Group segment develops rockets that are used as small-and medium-class space launch vehicles to place satellites into Earth orbit and escape trajectories; interceptor and target vehicles for missile defense systems; suborbital launch vehicles that place payloads into various high-altitude trajectories; rocket propulsion systems for human and cargo launch vehicles; strategic missiles; missile defense interceptors and target vehicles; composite structures for military and commercial aircraft and launch structures markets; and illuminating flares and aircraft countermeasures. The Defense Systems Group segment develops and produces military ammunition; small-caliber commercial ammunition; precision weapons and munitions; high-performance gun systems; propellant and energetic materials; propulsion systems for tactical missiles and missile defense applications; strike weapons; aircraft survivability systems; fuzes and warheads; special mission aircraft; airborne missile warning systems; defense electronics; and advanced anti-radiation guided missile and multi-stage supersonic target products. The Space Systems Group segment offers small-and medium-class satellites that are used to enable global and regional communications and broadcasting; conduct space-related scientific research; and perform other activities related to national security. This segment also provides human-rated space systems for Earth-orbit and deep-space exploration, including re-supplying the international space station; and spacecraft components and subsystems, as well as specialized engineering and operations services to the United States government agencies. The company is headquartered in Dulles, Virginia.