Julie Xiang, former federal sales manager at IBM (NYSE: IBM), has been named vice president of sales at cybersecurity and information

Jeremy Wensinger, James Winner and Robert Giannetta have been appointed to leadership positions at MHVC Acquisition Corp. — formerly known as the government information

Rick Mastracchio, a former NASA astronaut, has joined Orbital ATK (NYSE: OA) as senior director of operations for the Commercial Resupply

Charlie Sowell, a retired U.S. Navy commander and a former senior vice president at Salient CRGT, has joined Reston, Virginia-based

  David Dacquino, senior vice president of defense business at Serco Group‘s Americas division, has been promoted to chief executive in a

John Hays, a former chief technology officer at the Department of Veterans Affairs, has joined Merlin International as director of

Laurence Grayer, a former senior vice president, general counsel and corporate secretary of DynCorp International, has been named VP, general counsel

Boeing (NYSE: BA) will divide the network and space systems and military aircraft segments within its defense, space and security business

Amy Miller Feehery, formerly principal director of strategic growth and business development at STS International, has been named vice president

  Chico Moline, formerly senior vice president and general manager of Vectrus’ (NYSE: VEC) information technology and network communication service