 ANDOVER, Mass., Sept. 27, 2021 GLOBE NEWSWIRE -- Mercury Systems, Inc. NASDAQ: MRCY, a leader in trusted, secure mission-critical technologies for aerospace and defense, today announced that it has signed a definitive agreement to acquire Avalex Technologies Corporation Avalex. Based in Gulf Breeze, Fla., Avalex is a provider of mission-critical avionics, including rugged displays, integrated communications management systems, digital video recorders, and warning systems. 