Lockheed Martin (NYSE:LMT) has agreed to acquire Ultra Maritime, a supplier of undersea warfare and anti-submarine systems, from private equity firm Advent International for $3.45 billion. The transaction, announced on July 6, 2026, is subject to regulatory approvals and marks a strategic push into faster-growing naval segments for the largest U.S. defense contractor.
Ultra Maritime will be integrated into Lockheed's Rotary and Mission Systems (RMS) unit, which has faced headwinds. RMS reported 2025 sales of $17.31 billion, roughly flat year-over-year, while operating profit dropped 31% to $1.32 billion. In contrast, Ultra's annual revenue grew by approximately 17% during Advent's ownership, driven by investments in advanced product development and manufacturing capacity.
Deal Metrics and Investor Math
The purchase price represents about 2.8% of Lockheed's current market value of $124.2 billion and roughly half of its 2025 free cash flow. Relative to RMS, the deal equals about 20% of the unit's 2025 sales and 2.6 times its operating profit. Based on Financial Times estimates, the price-to-2026 revenue multiple is approximately 4.4 times, reflecting confidence in Ultra's growth trajectory.
Advent said it invested roughly $170 million into Ultra over the past three years, focusing on next-generation technologies. Ultra's product portfolio includes sonar systems, sonobuoys, torpedo defense, radar, and autonomous maritime sensing platforms. Earlier this year, Ultra secured a U.S. Navy development contract for an underwater acoustic decoy designed to protect ships and submarines from torpedoes.
Strategic Rationale and Partnerships
The acquisition bolsters Lockheed's exposure to allied undersea programs, including the AUKUS unmanned undersea vehicle initiative, with deliveries set to start in 2027. Ultra also maintains partnerships with Anduril Industries for autonomous ocean sensing and General Atomics Aeronautical Systems for unmanned airborne anti-submarine warfare, broadening Lockheed's ecosystem.
Stephanie C. Hill, president of Lockheed Martin Rotary and Mission Systems, stated, “Undersea superiority belongs to those who move fastest and work together best.” Shonnel Malani, managing partner at Advent and chair of Ultra Electronics, noted that Ultra had become a “stronger, more innovative partner to allied navies.”
Market Reaction and Context
Lockheed shares fell 1.3% in early trading to $538.87, bringing its market value to roughly $124.2 billion. Peer defense stocks also traded lower, with Northrop Grumman (NYSE:NOC) down 1.3%, General Dynamics (NYSE:GD) off 0.3%, and RTX (NYSE:RTX) near flat. The mild negative reaction suggests investors view the deal as manageable but not transformative, given Lockheed's $194 billion backlog and other capital demands, such as the potential THAAD procurement award worth up to $35 billion.
Regulatory risks remain, as the deal requires customary approvals. Lockheed's next investor event is its second-quarter earnings webcast on July 23 at 8:30 a.m. EDT, where management may provide details on funding, timing, and integration plans.
