Lockheed Martin agrees to buy Ultra Maritime Solutions for $3.45 billion to deepen undersea and anti-submarine warfare capabilities

Lockheed Martin said on Monday it has signed a definitive agreement to acquire Ultra Maritime Solutions, a defense company focused on undersea warfare and anti-submarine warfare (ASW), in a deal valued at $3.45 billion. The announcement positions Lockheed Martin to expand its portfolio of detection and defense technologies used by naval forces, at a time when maritime sensing and undersea threat response are central to procurement priorities among allied countries.

Ultra Maritime makes mission-critical systems for undersea and ASW missions, including sonar technologies, sonobuoys, torpedo defense systems, radar solutions, and autonomous maritime sensing platforms, according to the deal announcement carried by multiple outlets. Lockheed Martin said the acquisition reinforces its undersea domain expertise and would broaden the ways it can deliver sonar-related capability to U.S. and allied partners.

In the company statement, Lockheed Martin’s Rotary and Mission Systems business, led internally by Stephanie C. Hill, is expected to absorb Ultra Maritime’s operations after the transaction closes. Rotary and Mission Systems is the unit within Lockheed Martin that covers a range of defense electronics and mission payloads, including sensors and undersea-related technologies.

Lockheed said the combination would accelerate delivery of “advanced undersea and anti-submarine warfare capabilities,” with the acquirer pointing to Ultra Maritime’s technology and international footprint. The announcement described Ultra Maritime’s exportable ASW products, including product lines such as sonobuoys, towed sonar arrays, and hull mounted sonar systems, as intended to complement and expand Lockheed’s offering to allied navies.

The seller’s perspective in the announcement tied the acquisition to Ultra Maritime’s evolution under ownership by Advent, which had invested in the business in 2022. It said Ultra Maritime had moved toward improved execution, greater industrial capacity, and next-generation autonomous solutions, and that the technology and customer relevance were strengthened over the prior four years.

Outside the Lockheed statement, Reuters reported that Lockheed will buy Ultra Maritime from Advent for $3.45 billion, aligning with the figure published in the deal communications. Neither Reuters nor the deal release, in the text carried by outlets, disclosed detailed timeline guidance for when the transaction would close beyond noting that it is a definitive agreement subject to standard conditions.

For investors watching acquisition-driven portfolio shifts, the announcement also implies near-term work on integration and capacity scaling. Lockheed did not provide in the published excerpts any specific annual revenue, cost synergy targets, or detailed breakdown of how Ultra Maritime’s product lines would translate into future bookings. What comes next will likely include regulatory reviews, final closing conditions, and any supplemental disclosures in filings once the transaction timetable becomes clearer.