Lockheed Martin Closes $3.45B Ultra Maritime Acquisition, Adding Sonobuoys and Torpedo Defense to Its Portfolio

Lockheed Martin completed its $3.45 billion acquisition of Ultra Maritime on October 26, 2026, adding the undersea warfare specialist to its Rotary and Mission Systems business area. Ultra supplies sonobuoys, hull-mounted and towed sonar systems, torpedo defense equipment, radar, electronic warfare technologies and autonomous maritime sensing platforms for allied navies. The transaction follows a definitive agreement signed in July to purchase the business from Cobham Ultra, an Advent International portfolio company. Its product lines will complement Lockheed Martin's existing anti-submarine warfare portfolio, including naval helicopters and shipboard sonar and combat-system integration.