Antitrust and Hart-Scott-Rodino (HSR) Clearance for M&A

Strategic legal guidance on Antitrust and Hart-Scott-Rodino (HSR) clearance for M&A. Anthony, Linder & Cacomanolis provides expert analysis on HSR filing thresholds, Item 4(c)/4(d) compliance, and FTC/DOJ agency engagement.

Antitrust and HSR Clearance: Navigating the Hart-Scott-Rodino Compliance Framework

In the execution of strategic acquisitions and high-value mergers, antitrust clearance represents a primary hurdle to deal certainty. The Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the “HSR Act”) mandates that parties to certain large transactions notify the Federal Trade Commission (FTC) and the Department of Justice (DOJ) before closing. Anthony, Linder & Cacomanolis provides sophisticated counsel to domestic and international issuers, ensuring that HSR filings are executed with technical precision to minimize the risk of “Second Requests” and facilitate a timely path to closing.

The HSR Jurisdictional Thresholds (Section 7A)

The requirement to file an HSR Notification and Report Form is determined by a set of objective, annually adjusted thresholds. A transaction is reportable if it meets both the “Size of Transaction” and, in most cases, the “Size of Person” tests.

1. Size of Transaction Test

This test measures the value of the voting securities, non-corporate interests, or assets that the “Acquiring Person” will hold as a result of the transaction.

• The Absolute Threshold: As of 2025, transactions valued at more than $478 million (adjusted annually) are reportable regardless of the size of the persons involved.
• The Lower Threshold: Transactions valued above $119.5 million (the 2025 base threshold) are reportable only if the “Size of Person” test is also met.

2. Size of Person Test

This test evaluates the total assets or annual net sales of the ultimate parent entities (UPEs) of both the acquiring and acquired parties.

• Generally, one UPE must have at least $239 million in assets or sales, and the other must have at least $23.9 million (based on 2025 adjusted figures).

The Filing Process: Technical Precision and the 2024 Rule Changes

The 2024 overhaul of the HSR filing requirements has significantly expanded the volume of information required in the initial notification. Parties must now provide deeper insights into their corporate structures, subsidies, and competitive overlaps.

Item 4(c) and 4(d) Documents: The “Smoking Guns”

The most sensitive component of any HSR filing is the production of “4(c)” and “4(d)” documents. These include all studies, surveys, analyses, and reports prepared by or for any officer or director for the purpose of evaluating the transaction with respect to market shares, competition, competitors, or markets.

Strategic Risk: Documents that characterize the deal as “eliminating a competitor” or “increasing pricing power” are primary catalysts for a Second Request. We conduct rigorous document reviews early in the process to ensure that the regulatory narrative is consistent with the commercial reality of the transaction.

Disclosure of Subsidies and Foreign Interests

Under the new rules, parties must disclose certain subsidies received from “countries of concern.” This adds a layer of geo-political diligence to the filing, particularly for outbound acquisitions by U.S. firms or inbound deals involving foreign-backed entities.

The Waiting Period and “Second Requests”

Once the HSR filing is submitted and the filing fee is paid, a mandatory 30-calendar day waiting period begins (15 days for certain cash tender offers or bankruptcy sales).

• Early Termination: While the parties can request “Early Termination” of the waiting period, the agencies have frequently suspended the granting of early terminations during periods of high deal volume or increased scrutiny.
• Pull-and-Refile: In cases where the agencies need a short amount of additional time to review the filing without issuing a formal Second Request, the acquiring person may “pull and refile” the notification once without paying an additional fee.
• The Second Request: If the FTC or DOJ identifies significant competitive concerns, they may issue a “Request for Additional Information and Documentary Material.” This effectively stalls the transaction for several months as the parties must produce massive amounts of data and documents to prove the transaction is not anti-competitive.

Gun-Jumping Prohibitions and Pre-Clearance Conduct

A critical area of risk for strategic acquirers is “gun-jumping”—the premature transfer of control or the integration of business operations before the HSR waiting period has expired.

• Prohibited Conduct: Parties must remain separate and independent entities until clearance is granted. This includes prohibitions on coordinating prices, sharing sensitive competitive data, or consolidating sales forces.
• Due Diligence vs. Integration: While “clean teams” can be used to facilitate pre-closing integration planning, the actual execution of that plan is prohibited until the 30-day clock expires or is terminated. Violations can result in civil penalties exceeding $50,000 per day.

Strategic Provisions in the Merger Agreement

The definitive merger or asset purchase agreement must align with the HSR strategy. We assist in negotiating:

• Efforts Covenants: Defining the level of effort the parties must exert to obtain clearance (e.g., “Reasonable Best Efforts” vs. “Hell-or-High-Water” clauses requiring divestitures).
• Drop-Dead Dates: Ensuring the “End Date” provides sufficient buffer for a potential Second Request or litigation with the agencies.
• Reverse Break Fees: Negotiating fees payable by the buyer if the transaction fails specifically due to the inability to obtain antitrust approval.

Authority Through Technical Depth

Our expertise in antitrust compliance and the nuances of the HSR Act is grounded in years of professional analysis. We invite executive leadership to explore our extensive library of insights at our corporate website and our specialized blog site, www.securitieslawblog.com, for detailed discussions on the 2024 HSR rule changes and the evolution of vertical merger enforcement.

Schedule an Executive Strategy Consultation

Navigating the complexities of HSR clearance requires an authoritative partner who understands the intersection of deal economics and antitrust policy. Anthony, Linder & Cacomanolis invites you to engage in a high-level strategy consultation to evaluate your transaction’s reportability and competitive risk profile.

Schedule an executive strategy consultation with our senior partners to discuss your HSR and antitrust needs by calling 844-529-9523 or visiting our contact page.