HII Adds Halimar Shipyard to ROMULUS USV Production Network

Rhea-AI Summary

HII (NYSE:HII) added Halimar Shipyard to its ROMULUS unmanned surface vessel production network. Halimar will build complete ROMULUS 151 vessels alongside Breaux Brothers in Louisiana, expanding scalable Gulf Coast capacity, supporting distributed shipbuilding, and helping meet growing U.S. Navy and allied demand for autonomous maritime capabilities.

AI-generated analysis. How Rhea-AI works. Not financial advice.

News Market Reaction – HII

+0.89%

+0.89% News Effect

On the day this news was published, HII gained 0.89%, reflecting a mild positive market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

HII’s addition of Halimar to the ROMULUS network, with 5 ROMULUS 151 vessels already under construct...

Analysis

HII’s addition of Halimar to the ROMULUS network, with 5 ROMULUS 151 vessels already under construction, underscores a scaled autonomous-ship strategy. Past news often saw mixed price follow-through, while recent insider activity showed net selling, making execution and Navy demand key to watch.

Key Figures

ROMULUS 151 vessels in build: 5 vessels

1 metrics

ROMULUS 151 vessels in build 5 vessels Under construction at Breaux Brothers Enterprises

Historical Context

5 past events · Latest: Jul 01 (Positive)

Pattern 5 events

Date	Event	Sentiment	24h Move	Catalyst
Jul 01	Destroyer fabrication start	Positive	-0.3%	Began fabrication of Flight III destroyer John F. Lehman (DDG 137).
Jun 26	Facility opening	Positive	+1.0%	Opened Carrier Refueling Overhaul Workcenter to support carrier RCOH work.
Jun 22	Navy support contract	Positive	-2.8%	Awarded $418M five-year IDIQ to support fleet operational readiness.
Jun 16	UUV delivery	Positive	-0.4%	Delivered first REMUS 130 unmanned underwater vehicle to a U.S. ally.
Jun 15	Tech event	Positive	-0.4%	Hosted DefenseTech LIVE 2026 event showcasing autonomy and defense tech.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Recent operational and contract news has more often been followed by next-day share price declines than gains.

Key Terms

unmanned surface vessel, autonomous maritime systems, mine countermeasures, counter-unmanned systems, +1 more

5 terms

unmanned surface vessel technical

"supporting serial production of HII’s ROMULUS unmanned surface vessel (USV) family"

An unmanned surface vessel is a boat or ship that operates on the water without a person on board, using remote control or automated systems to navigate and carry out tasks. Investors care because these vessels can lower operating costs, open new markets (like shipping, surveillance, or data collection), and shift regulatory and competitive dynamics much like self-driving cars changed expectations for trucking and logistics.

autonomous maritime systems technical

"a global leader in autonomous maritime systems, announced today that Halimar Shipyard"

Unmanned vessels, drones, and linked sensors that operate at sea using onboard software, sensors, and remote supervision—think of self‑driving cars for ships and offshore equipment. They matter to investors because they can cut operating costs, create new service and logistics markets, and boost efficiency, while also introducing regulatory, safety and cybersecurity risks that can affect revenue, capital needs and valuation.

mine countermeasures technical

"ROMULUS is a modular family of AI-enabled unmanned surface vessels designed to support a broad range of missions, including intelligence, surveillance, and reconnaissance (ISR); mine countermeasures;"

Mine countermeasures are the tools and activities used to find, disable, remove or avoid explosive mines in water and on the seabed, protecting ships, ports and offshore operations. Think of it like a specialized cleanup crew that detects hidden hazards and clears safe passages; for investors, demand for these services and technologies affects defense contractors, marine-service providers and companies involved in shipping and port security, especially in regions with heightened naval risk.

counter-unmanned systems technical

"missions, including ... strike operations; counter-unmanned systems; and the launch and recovery"

Counter-unmanned systems are tools and technologies used to detect, track and stop unmanned vehicles like drones or robotic craft in the air, on land, or at sea. Investors care because these systems create a market for companies that supply hardware, software and services to protect critical sites and public events; like a neighborhood alarm system for skies and grounds, demand can rise quickly with new threats, regulation, or military spending.

intelligence, surveillance, and reconnaissance technical

"designed to support a broad range of missions, including intelligence, surveillance, and reconnaissance (ISR);"

Intelligence, surveillance, and reconnaissance (ISR) is the collection and analysis of information—using satellites, aircraft, drones, sensors, or data systems—to monitor people, places, or events and turn raw observations into actionable knowledge. For investors, ISR matters because it drives spending on specialized hardware, software, and services that support defense, security, and analytics; think of it as a company’s “watchtower and detective” capability that can create steady contracts, recurring revenue, or competitive advantage in technology and government markets.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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MCLEAN, Va., July 06, 2026 (GLOBE NEWSWIRE) -- HII (NYSE: HII), America’s largest military shipbuilder and a global leader in autonomous maritime systems, announced today that Halimar Shipyard of Morgan City, Louisiana, has joined the company’s growing network of strategic industrial partners supporting serial production of HII’s ROMULUS unmanned surface vessel (USV) family.

With extensive experience in commercial and government vessel construction, Halimar brings a highly skilled workforce, modern facilities, and proven production processes that will directly support full-rate manufacturing of the ROMULUS 151 platform.

Under the partnership, Halimar will construct complete ROMULUS 151 vessels and support serial production in collaboration with Breaux Brothers Enterprises in Louisiana, where five ROMULUS 151 vessels are currently under construction.

The partnership will help accelerate production schedules, expand capacity, and support growing demand from the U.S. Navy and allied maritime forces for autonomous unmanned maritime capabilities.

“Our partnership with Halimar Shipyard represents another important step in building the industrial capacity needed to deliver autonomous maritime capability at scale,” said Andy Green, executive vice president of HII and president of HII’s Mission Technologies division. “Halimar’s proven shipbuilding expertise, skilled workforce, and strategic Gulf Coast location strengthen our ability to accelerate production, improve supply chain resilience, and provide affordable, mission-ready autonomous systems.”

A photo accompanying this release is available at: https://www.hii.com/news/hii-adds-halimar-shipyard-to-romulus-usv-production-network

“We are proud to partner with HII on the ROMULUS program and contribute to the future of autonomous maritime operations,” said William Hidalgo Jr, executive vice president and chief operating officer, Halimar Shipyard. “Our team has decades of experience building high-quality vessels, and we look forward to applying that expertise to help deliver reliable, scalable production capacity that supports evolving mission needs.”

The addition of Halimar Shipyard provides several key advantages to the ROMULUS production team:

Scalable Manufacturing Capacity

Halimar’s facilities provide an established and expandable production foundation capable of producing complete ROMULUS 151 vessels while increasing output as unmanned surface vessel demand grows.

Long-Term Strategic Partnership

As a core member of the ROMULUS production team, Halimar is collaborating closely on vessel construction, manufacturing integration, and production readiness to support delivery of an affordable, reliable, and producible autonomous maritime solution.

Distributed Shipbuilding Model

Expanding HII’s Gulf Coast manufacturing footprint strengthens supply chain resilience, increases surge capacity, and supports efficient execution of the ROMULUS production schedule through multiple production locations.

The partnership with Halimar Shipyard expands HII’s distributed manufacturing, which brings together specialized shipbuilders, fabricators, designers, and technology providers to accelerate delivery of autonomous maritime capability at scale.

Working with Halimar, Breaux Brothers Enterprises, Bayou Metals, and additional strategic partners, HII is reducing lead times, streamlining fabrication, and advancing major assembly work ahead of final integration. This approach enhances throughput, supports consistent, repeatable production, and enables efficient serial delivery of ROMULUS vessels across multiple shipyards.

The ROMULUS program also benefits from the expertise of internationally recognized design and engineering partners such as Sydney-based Incat Crowther. The integration of Incat Crowther into the ROMULUS initiative exemplifies how trusted international partners strengthen the global defense ecosystem through high-performance vessel design, engineering agility, and regional expertise. Their contributions help ensure that ROMULUS platforms combine advanced operational capability with manufacturability, scalability, and lifecycle efficiency.

Collectively, these efforts strengthen the U.S. shipbuilding industrial base by expanding regional manufacturing capacity, creating new opportunities to grow and sustain a skilled workforce, and establishing a resilient production network capable of supporting future autonomous fleet requirements.

ROMULUS USV: Built for Scale and Mission Flexibility

ROMULUS is a modular family of AI-enabled unmanned surface vessels designed to support a broad range of missions, including intelligence, surveillance, and reconnaissance (ISR); mine countermeasures; strike operations; counter-unmanned systems; and the launch and recovery of unmanned underwater and aerial vehicles.

Engineered for serial, repeatable production, ROMULUS combines endurance, global reach, and modular adaptability. The platform’s common manufacturing architecture and autonomy baseline enable scalability across multiple vessel sizes while reducing production complexity and accelerating fleet fielding. Supported by a growing network of production partners across the Gulf Coast and beyond, ROMULUS is designed not only as a highly capable autonomous platform, but as a scalable maritime manufacturing program capable of delivering operational capability at the pace required by modern naval forces.

About HII

HII is America’s largest shipbuilder, delivering the world’s most powerful ships and all-domain mission technologies, including unmanned systems, to U.S. and allied defense customers. HII is the largest producer of unmanned underwater vehicles for the U.S. Navy and the world.

With a more than 140-year history of advancing U.S. national security, HII builds and integrates defense capabilities extending from the core fleet to C6ISR, AI/ML, EW and synthetic training. Headquartered in Virginia, HII’s workforce is 44,000 strong. For more information, visit:

• HII on the web: https://www.HII.com/
• HII on Facebook: https://www.facebook.com/TeamHII
• HII on X: https://www.twitter.com/WeAreHII
• HII on Instagram: https://www.instagram.com/WeAreHII
• HII on LinkedIn: https://www.linkedin.com/company/wearehii
  
  

Contact:

Greg McCarthy
(202) 264-7126
gregory.j.mccarthy@hii-co.com

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/e401d3d8-d78e-45da-82b6-09ed383fb21e

FAQ

What did HII (NYSE:HII) announce about Halimar Shipyard and the ROMULUS 151 USV on July 6, 2026?

HII announced Halimar Shipyard joined its ROMULUS 151 unmanned surface vessel production network as a core build partner. According to HII, Halimar will construct complete ROMULUS 151 vessels and collaborate with Breaux Brothers to support serial, scalable production for U.S. Navy and allied customers.

How will the Halimar Shipyard partnership affect ROMULUS USV production for HII (HII)?

The partnership is expected to expand ROMULUS USV manufacturing capacity and support faster, repeatable production cycles. According to HII, Halimar’s facilities and workforce will help increase output, strengthen supply chain resilience, and enhance distributed shipbuilding across multiple Gulf Coast shipyards.

What is the ROMULUS 151 unmanned surface vessel developed by HII (HII)?

ROMULUS 151 is part of HII’s modular, AI-enabled unmanned surface vessel family designed for multiple naval missions. According to HII, ROMULUS supports ISR, mine countermeasures, strike operations, counter-unmanned systems, and launch and recovery of unmanned underwater and aerial vehicles.

How does the Halimar Shipyard agreement support HII’s distributed shipbuilding model for ROMULUS USVs?

The agreement adds another Gulf Coast production site, reinforcing HII’s distributed manufacturing approach for ROMULUS USVs. According to HII, working with Halimar, Breaux Brothers, Bayou Metals and others helps reduce lead times, streamline fabrication, and advance major assemblies ahead of final integration.

Which partners support HII’s ROMULUS USV design and production beyond Halimar Shipyard?

ROMULUS production is supported by multiple regional and international partners across design, fabrication, and build. According to HII, partners include Breaux Brothers, Bayou Metals, additional Gulf Coast manufacturers, and design and engineering specialists such as Sydney-based Incat Crowther.

What missions can HII’s ROMULUS unmanned surface vessels perform for naval forces?

ROMULUS USVs are designed for a broad set of autonomous naval missions using a modular architecture. According to HII, missions include ISR, mine countermeasures, strike, counter-unmanned systems, and serving as a host for unmanned underwater and aerial vehicles.