Defense Department Review of Large Investments

Summary#

This bill would require the Department of Defense (DoD) to review certain investments by investment companies that seek a controlling interest in companies that supply the Defense Department. The main change is a new premerger notification and DoD review for any investment company acquiring 25% or more equity or otherwise gaining control of a major defense supplier. The broad goal is to protect the defense industrial base and national security by giving DoD visibility into and a formal role in large investment deals affecting defense suppliers.

Key changes:

• Investment companies must get a DoD review before completing any covered transaction that gives them at least 25% equity or control of a major defense supplier.
• Parties must file a premerger notification to DoD following the notification process set in a recent law (section 857 of the 2024 NDAA).
• DoD must assess national security, competition for DoD contracts, risks to critical supplies or technologies, financial stability, and the investment company’s financial plans.
• Within 30 days of receiving the notification, DoD must send a written report of its review to the Federal Trade Commission or the Antitrust Division of the Justice Department.
• The DoD must do a triennial (every three years) review of merger and acquisition activity affecting major defense suppliers and report findings to congressional defense committees beginning by December 31, 2027.

What it means for you#

• Investment companies / Private equity funds

  • Must submit a premerger notification to DoD before completing deals that give them 25%+ equity or practical control of a major defense supplier.
  • Could face an extra government review step before closing a planned investment.

• Major defense suppliers (contractors and subcontractors)

  • Transactions that change ownership or give an investor control will trigger DoD review.
  • Potential buyers or owners may need to share financial plans and other information with DoD.

• Department of Defense

  • Must carry out case-by-case reviews of covered transactions and prepare reports to antitrust authorities.
  • Must perform a triennial review and report to Congress on merger and acquisition trends and risks to the defense industrial base.

• Antitrust authorities (FTC / DOJ Antitrust Division)

  • Will receive DoD’s written review within 30 days of DoD getting the premerger notification. They retain their own legal review authority.

• Businesses and lawyers involved in M&A

  • Should expect an additional compliance step and possible delay in deal timelines for affected transactions.
  • May need to provide information on how a planned investment affects DoD contracts, critical supplies, and the target company’s finances.

• Taxpayers / general public

  • The bill aims to protect supply chains and defense capabilities. Any direct public impact depends on how DoD acts on reviews and follows up on identified risks.

Expenses#

No publicly available information.

• The bill would likely increase DoD administrative costs to review notifications, prepare written reports to antitrust authorities, and produce triennial reports. No cost estimate is included in the bill text.
• Investment companies and target firms may face compliance costs for preparing and submitting required materials and for possible delays.
• Any additional staffing, analysis, or information systems the DoD needs to carry out reviews are not specified or costed in the bill text.

Proponents' View#

• The bill appears intended to give DoD formal oversight of large investment transactions that could affect the defense industrial base and national security.
• Supporters may argue that requiring premerger notifications and DoD review will help identify risks to critical supplies, technologies, and the financial stability of key defense suppliers.
• The triennial review could improve DoD’s ability to spot trends in consolidation or investment activity that harm competition or readiness.
• Sending DoD’s findings to antitrust authorities could improve coordination between defense and competition policy.

Opponents' View#

• One concern is that the bill does not clearly say whether DoD can approve, condition, or block a transaction; the text requires a prior review but leaves approval authority unclear.
• The bill may duplicate or overlap with existing antitrust or national security review processes (the bill itself refers DoD reports to FTC/DOJ), which could create coordination or timing issues.
• The 25% equity threshold and a broad definition of “major defense supplier” could capture many transactions, creating uncertainty and extra costs for both investors and companies.
• Confidential business information and financial plans would need to be shared with DoD, raising questions about how that information is protected.
• The bill does not include a budget estimate, so it is unclear how much additional staff or resources DoD would need to carry out detailed reviews and triennial reports.