Mercury Systems reported fourth quarter and fiscal year 2026 results ending July 3, 2026. Q4 revenue reached approximately $290 million, up 6.1% year-over-year, with record bookings of $660 million (up 93.1%) yielding a book-to-bill ratio of 2.28 and a record backlog exceeding $1.9 billion. GAAP net income was $1 million ($0.01 per share), while adjusted EBITDA was $49 million with a margin of 16.7%. For the full fiscal year, revenue totaled $984 million against a GAAP net loss of $30 million; adjusted EPS improved to $1.06 from an adjusted loss of $0.64 in the prior year. The company raised its FY27 organic revenue growth outlook to low double digits and increased total revenue expectations to approaching $1.1 billion, citing strong demand signals and enhanced visibility into fiscal 2028. Mercury Systems operates as a global leader in aerospace and defense electronics, providing signal and data processing solutions.