Lockheed Martin agrees to buy Ultra Maritime for $3.45 billion to expand undersea warfare portfolio

Lockheed Martin has agreed to acquire Ultra Maritime Solutions for $3.45 billion in a move designed to deepen its position in undersea and anti-submarine warfare, according to multiple reports published July 6.

The transaction, described as a definitive agreement, is intended to bring Ultra Maritime’s portfolio of naval defense technologies into Lockheed Martin. Reporting around the deal said the technologies include sonar systems, sonobuoys, and torpedo defense-related capabilities, products that are used to detect submarines and improve defenses against torpedo threats.

The target is described as serving allied navies, and the acquisition fits a broader pattern in defense procurement where ship and aircraft operators increasingly look for integrated undersea detection and counter-attack solutions rather than standalone sensors. Sonobuoys, for example, are expendable underwater sensors dropped from aircraft or helicopters to help locate and track submarines, while sonar systems and related processing are central to anti-submarine warfare.

According to Reuters, Ultra Maritime is owned by private equity firm Advent, tying the deal to ongoing consolidation in specialized defense technology. Yahoo Finance similarly described the purchase as a $3.45 billion transaction and highlighted the undersea and torpedo-defense technology focus.

Ultra Maritime’s products and systems are expected to enhance Lockheed Martin’s ability to sell capabilities across navies that rely on sea-based and air-delivered sensing for submarine operations. While the reported details emphasize the technology categories, the public reporting in these early posts did not outline specific contract backlogs, customer programs, or the portion of revenue tied to any single platform such as submarines, surface ships, or patrol aircraft.

Lockheed Martin has multiple business units spanning air, land, sea, and space, and undersea warfare capabilities are part of its broader defense exposure. The company has not, in the early reporting around this transaction, described how Ultra Maritime would be integrated organizationally, nor did it provide guidance on expected timing for closing or the types of regulatory approvals required.

The companies also did not publish, in the material available in these initial reports, a breakdown of whether the purchase price includes earn-outs, contingent consideration, or other deal-structure elements. That absence matters for investors watching the defense sector because deal economics and closing risk can shift once financing terms, government reviews, or divestiture conditions are made public.

For now, the key watch items are what Lockheed Martin will disclose as it moves from a signed agreement toward closing, including deal timing, regulatory approvals, and how it expects the acquisition to affect revenue and margins over the next several quarters. In the near term, defense buyers will also be watching whether the combined technology stack can be packaged into new undersea warfare proposals for allied procurement cycles.