Lockheed Martin Corporation has entered into a definitive agreement to acquire Ultra Maritime for $3.45 billion from Cobham Ultra, an Advent International-affiliated defense technology holding structure. Ultra Maritime is a leading developer of anti-submarine warfare (ASW) systems, sonar technology, sonobuoys, torpedo defense systems, and autonomous undersea sensing platforms serving the U.S. Navy and allied naval forces.

The transaction will be integrated into Lockheed Martin's Rotary and Mission Systems (RMS) business segment, which encompasses maritime systems, C2BMC, Sikorsky helicopters, and a range of mission systems and training solutions. Specific closing timeline and regulatory filing details have not been disclosed in the public announcement, though the defense technology profile of the target makes multi-workstream regulatory review — including antitrust, export control, and national security — a near-certainty.

The acquisition reflects a structural shift in U.S. and allied defense procurement priorities. Undersea warfare — long a critical but relatively lower-profile domain — has moved to the center of great power competition planning. The proliferation of advanced submarine fleets, the strategic importance of undersea communication cables, and the development of autonomous undersea vehicles by near-peer competitors have driven sustained investment in ASW capabilities across the U.S. Navy and allied navies (Royal Navy, Royal Australian Navy, and other Five Eyes partners).

Ultra Maritime's product portfolio is directly aligned with this demand signal:

Sonar Systems. Ultra Maritime develops hull-mounted, towed array, and helicopter-dipping sonar systems used to detect, track, and classify submarine contacts. These systems are embedded in surface combatants, maritime patrol aircraft, and ASW helicopters operated by the U.S. and allied navies.

Sonobuoys. Sonobuoys are expendable acoustic sensors deployed from maritime patrol aircraft and helicopters to detect submarine activity. Ultra Maritime is a leading sonobuoy manufacturer, supplying systems that are consumed in large quantities during both training and operational deployments. The recurring consumable nature of sonobuoy demand creates a predictable revenue stream that is strategically attractive to Lockheed.

Torpedo Defense Systems. Ultra Maritime develops hard-kill and soft-kill torpedo defense systems that protect surface ships and submarines from incoming torpedo attacks — a capability that has gained renewed urgency as adversary torpedo technology has advanced.

Autonomous Undersea Sensing Platforms. Ultra Maritime has invested in autonomous and unmanned undersea vehicle (UUV) sensor payloads — a segment that is expected to grow significantly as navies transition toward distributed, autonomous ISR architectures.

For Lockheed Martin, the Ultra Maritime acquisition achieves several strategic objectives:

• Vertical integration in maritime systems — Lockheed already produces the MH-60R Seahawk helicopter (through Sikorsky) and various maritime C2 systems; adding Ultra Maritime's sonar and sonobuoy capabilities creates a more integrated ASW solution offering
• Recurring revenue — sonobuoy consumption and sonar maintenance contracts provide predictable, long-cycle revenue streams that complement Lockheed's program-of-record business model
• Allied navy relationships — Ultra Maritime has deep relationships with Royal Navy and other allied naval customers, supporting Lockheed's international defense sales strategy
• Private equity exit at scale — Advent's exit via a strategic sale to Lockheed at $3.45 billion validates the value creation thesis of the Cobham Ultra carve-out and consolidation strategy

Ultra Maritime's products are among the most technically sensitive in the defense sector. Due diligence in defense technology M&A differs materially from commercial technology transactions:

• Classified program access — certain Ultra Maritime programs may be classified at the SECRET or above level, requiring cleared personnel to conduct due diligence and limiting the scope of information available to non-cleared advisors
• System performance data — actual performance specifications for sonar systems, sonobuoys, and torpedo defense systems are typically classified, meaning acquirers must rely on cleared technical advisors to assess program health and technology maturity
• Obsolescence and technology refresh risk — defense electronics have long program lifecycles; assessing the technology refresh roadmap and the risk of obsolescence in key components (particularly semiconductors subject to export controls) is a critical diligence workstream

Ultra Maritime's products are almost certainly controlled under the International Traffic in Arms Regulations (ITAR) as defense articles on the U.S. Munitions List (USML). Key ITAR considerations in the acquisition include:

• ITAR compliance program assessment — Lockheed must assess the adequacy of Ultra Maritime's existing ITAR compliance infrastructure, including technology control plans, empowered official designations, and license management
• Foreign person access — any Ultra Maritime employees, contractors, or facility visitors who are foreign nationals may have had access to ITAR-controlled technical data; the acquisition must ensure that such access was properly licensed or that violations are identified and disclosed
• Re-export authorizations — Ultra Maritime's sales to allied navies are conducted under State Department licenses or exemptions; the change of ownership may require notification to or approval from the State Department's Directorate of Defense Trade Controls (DDTC)
• Cobham Ultra ownership history — Cobham was previously owned by Advent International, a U.S.-based private equity firm, but Cobham's historical ownership by a UK company and its complex carve-out history may have created ITAR compliance complexities that require careful diligence

Ultra Maritime's revenue is derived primarily from U.S. government contracts (prime contracts and subcontracts) and allied government contracts. The acquisition triggers several government contracting considerations:

• Novation requirement — under the Federal Acquisition Regulation (FAR), the transfer of government contracts to a new entity requires a formal novation agreement approved by the cognizant contracting officer. Lockheed must identify all government contracts requiring novation and initiate the novation process promptly after signing
• Change-of-control notifications — many government contracts contain clauses requiring the contractor to notify the government of a change in ownership; failure to provide timely notification can constitute a contract violation
• Organizational Conflict of Interest (OCI) — Lockheed's existing programs may create OCI issues with Ultra Maritime's programs if both companies support competing platforms or if Ultra Maritime has advisory roles that conflict with Lockheed's competitive interests. OCI mitigation plans may be required as a condition of contract novation
• Cost accounting standards — if Ultra Maritime is currently subject to Cost Accounting Standards (CAS) disclosure requirements, the acquisition will trigger a CAS change-of-ownership disclosure and potentially require cost impact submissions

Given the sensitivity of Ultra Maritime's technology and its role in U.S. and allied naval operations, the transaction may be subject to review by the Committee on Foreign Investment in the United States (CFIUS) — though both Lockheed and Cobham Ultra are U.S.-affiliated entities, making a mandatory CFIUS filing less likely. However, if any foreign persons hold interests in the Cobham Ultra structure, a voluntary CFIUS notice may be prudent to obtain clearance and avoid post-closing review.

More significantly, the Defense Contract Audit Agency (DCAA) and the relevant program executive offices will scrutinize the transaction's impact on program costs and performance commitments.

The transaction will require HSR Act pre-merger notification. The primary antitrust question is whether Lockheed and Ultra Maritime compete in any product markets — which appears limited given that Lockheed is primarily a platform integrator and Ultra Maritime is a subsystem and sensor supplier. However, the DOJ's National Security Division has increased scrutiny of defense sector consolidation, and the transaction's impact on competition for sonar and sonobuoy contracts may receive attention.

Ultra Maritime's competitive position rests on accumulated engineering know-how, proprietary signal processing algorithms, and long-standing relationships with naval program offices. Retaining key technical personnel — particularly cleared engineers with deep expertise in acoustic signal processing and undersea sensor design — is critical to preserving program performance and customer confidence post-closing.

Defense Supply Chain Positioning. Turkey's defense industrial base — including companies such as Aselsan, Roketsan, and STM — operates in several domains adjacent to Ultra Maritime's portfolio, including sonar, electronic warfare, and autonomous systems. The Lockheed / Ultra Maritime combination signals continued U.S. investment in undersea warfare capabilities and may create both competitive pressure and partnership opportunities for Turkish defense companies in allied navy programs.

ITAR Compliance for Turkish Defense Exporters. Turkish companies that export defense articles to the United States or that incorporate U.S.-origin defense technology in their products must maintain robust ITAR compliance programs. The Lockheed / Ultra Maritime transaction illustrates the complexity of ITAR in M&A contexts — a complexity that Turkish companies face whenever they acquire U.S. defense technology assets or enter into technology transfer agreements with U.S. defense contractors.

Private Equity Exit Dynamics. The Advent / Cobham Ultra exit via strategic sale to Lockheed at $3.45 billion is consistent with the broader pattern of private equity firms building defense technology platforms through carve-outs and bolt-on acquisitions, then exiting to strategic buyers at premium valuations. Turkish investors and family offices evaluating U.S. defense technology investments should understand this exit dynamic and the regulatory constraints — particularly CFIUS and ITAR — that shape the universe of potential buyers.

This alert is provided for informational purposes only and does not constitute legal advice. Transaction details are based on publicly available information as of the date of publication. For legal advice regarding M&A transactions, defense technology investments, or U.S. regulatory matters, please contact ULF New York.