PROMONTORY, Utah, May 31, 2012 /PRNewswire/ -- ATK (NYSE: ATK) and United Launch Alliance (ULA) conducted a successful cold-temperature ground test today of a Graphite Epoxy Motor (GEM-60)

ARLINGTON, Va., May 30, 2012 /PRNewswire/ -- ATK (NYSE: ATK) will participate as an exhibitor at the 2012 Eurosatory Land, Naval & Internal Security Systems International Exhibition

LOS ANGELES and ARLINGTON, Va., May 9, 2012 /PRNewswire/ -- ATK (NYSE: ATK) announced today it has developed Liberty into a complete commercial crew transportation system, including the spacecraft,

ARLINGTON, Va., May 3, 2012 /PRNewswire/ -- ATK (NYSE: ATK) today reported operating results for Fiscal Year 2012, which ended March 31, 2012.

ARLINGTON, Va., May 1, 2012 /PRNewswire/ -- ATK (NYSE: ATK) today announced that its Board of Directors has declared a quarterly cash dividend of $0.20 per share.