FTC Releases Proposed Changes to Premerger Notification Form and Process


The Federal Trade Commission (FTC) has proposed, for comment, significant changes to the information and documents to be submitted with premerger filings—even in transactions that do not raise significant antitrust issues. The changes proposed may not take effect and may be different when finalized. But if promulgated as proposed, every Hart-Scott-Rodino (HSR) filing will be more difficult and time-consuming, and transactions that might raise even marginal antitrust issues will require significant up-front work. We summarize below the most significant proposed changes and actions to take now to prepare for the changes if they are issued as proposed.

IN DEPTH

WHAT HAPPENED

The FTC published proposed rules that, if promulgated as proposed, will extensively—and fundamentally—alter the HSR Antitrust Improvements Act filing regime. The proposed rules will create a more burdensome, intrusive filing system, which will add significant cost and time to M&A reviews.

As part of the initial filing for every transaction, the proposed rules will require information and document production that the FTC previously would have sought only if it chose to open a preliminary investigation and issue a voluntary request letter or similar request, or to issue a second request. Parties will also need to make strategic decisions about product markets and present written responses and advocacy on core competitive issues as part of their initial filings.

The proposed rules were published in the Federal Register on June 29, 2023, triggering a 60-day comment period. The FTC will consider any comments and can then publish final rules. We expect that a new filing regime may begin in 2024.

CHANGES PROPOSED IN THE FTC RULES 

The proposed rules and explanations are more than 130 pages long. Here, we set out a roadmap to guide you through the most important points:

WHAT THIS MEANS

It is hard to overstate the significance of these proposed changes to the HSR filing regime.

WHAT’S NEXT

Interested parties may file comments to the proposed rulemaking by August 28, 2023. The FTC may hold listening forums or other opportunities for public input. There is no mandatory timeline for finalization of new federal rules.

Even if the FTC reduces the scope of its proposed modifications, the revised HSR rules will dramatically increase the time and cost to prepare the HSR filing and increase the likelihood that US antitrust regulators will investigate all horizontal and vertical issues in transactions, regardless of the size of the overlap.

Because the revised HSR rules require buyers and sellers to identify all transactions of any size completed within the last 10 years, companies will need to establish a system to assess any regulatory issues for non-HSR-reportable transactions—and to better understand the antitrust agencies’ potential views on competitive issues associated with serial transactions, some of which might not appear to raise concerns when considered in isolation.

Finally, it will be more important than ever for companies to take a strategic, holistic view of key documents, investing in sophisticated antitrust training for those who create such documents and the business leaders and decision-makers who use them.


© 2025 McDermott Will & Emery
National Law Review, Volume XIII, Number 181