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Hart-Scott-Rodino Act › Premerger Notifications

The Hart-Scott Rodino Antitrust Improvements Act is a United States federal statute enacted in 1976 establishing the federal premerger notification program. Under the Act, parties contemplating mergers or... more +
The Hart-Scott Rodino Antitrust Improvements Act is a United States federal statute enacted in 1976 establishing the federal premerger notification program. Under the Act, parties contemplating mergers or acquisitions must notify the Department of Justice and the Federal Trade Commission prior to completing the transaction. Once notified, the DOJ and FTC investigate and make a determination as to whether the proposed transaction will adversely impact U.S. commerce and competition within the market. less -
Cadwalader, Wickersham & Taft LLP

Washington State Adopts First Broad State Antitrust Premerger Notification Act and Filing Requirement

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Effective July 27, 2025, any person that files a Hart-Scott-Rodino (HSR) Act Notification and Report Form (HSR Form) with the Federal Trade Commission (FTC) and the Department of Justice (DOJ) must also submit an electronic...more

Latham & Watkins LLP

Washington Introduces State-Level Merger Notification Rules

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States’ merger review and enforcement initiatives continue to expand as Washington adopts the nation’s first “mini-HSR” rule. On April 4, 2025, the State of Washington passed the Antitrust Premerger Notification Act...more

Bass, Berry & Sims PLC

Washington Enacts “Mini-HSR” Law, Expanding State-Level Premerger Filing Requirements

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On April 4, Washington became the first state to adopt the Uniform Premerger Notification Act (Act) when Washington Governor Jay Inslee signed the bill into law. The new statute imposes state-level premerger filing...more

Goodwin

Washington Becomes First State to Adopt Filing Requirements for HSR-Reportable Transactions Outside of Healthcare

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On April 4, 2025, Washington became the first state to enact a law requiring a general pre-merger notification of HSR-reportable deals to state enforcers, regardless of industry....more

White & Case LLP

Washington Becomes First State to Enact “Uniform Antitrust Pre-Merger Notification Act”

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On April 4, 2025, Gov. Bob Ferguson of Washington state signed S.B. 5122, making Washington the first state to enact the Uniform Law Commission’s “Uniform Antitrust Pre-Merger Notification Act.” Overview of the New...more

McCarter & English, LLP

Mo’ Data, Mo’ Problems: Antitrust Risk in the Age of Big Data

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New Hart-Scott-Rodino premerger notification rules, which took effect in February, require that companies now provide more information than ever before about their prospective mergers. Meanwhile, both federal and state...more

WilmerHale

Washington Enacts Broad Premerger Notification Law: The Cutting Edge of State Merger Review

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On April 4, 2025, Washington became the first state to enact the Uniform Antitrust Premerger Notification Act (Model Act), requiring parties to certain notifiable transactions under the Hart-Scott-Rodino Antitrust...more

Jenner & Block

Premerger Enforcement Actions Highlight Importance of HSR Compliance

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Cases involving premerger enforcements under the Hart-Scott-Rodino (HSR) Act are relatively rare. So far in 2025, however, we have seen two such cases involving potentially record-breaking penalties. The timing is notable, as...more

Stinson LLP

Washington State First to Adopt "Baby HSR" Act

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Legislatures in several states have recently introduced bills that would require certain parties who submit Hart-Scott-Rodino (HSR) premerger filings to the federal government to provide that same information to the state. On...more

EDRM - Electronic Discovery Reference Model

HSR Filings Fall Sharply in March 2025, Lowest Monthly Total Since Early Pandemic

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ComplexDiscovery Editor’s Note: The March 2025 Hart-Scott-Rodino (HSR) filings dropped to 89 transactions, marking the lowest monthly total since the early months of the COVID-19 pandemic in April and May 2020. This...more

HaystackID

March 2025 HSR Filings Hit Five-Year Low Amid Regulatory Overhaul and Legal Challenge

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The federal premerger notification program administered under the Hart-Scott-Rodino (HSR) Act recorded just 89 transactions in March 2025, marking the lowest monthly filing total in nearly five years. This downturn is the...more

BakerHostetler

Live Updates #2 - ABA Antitrust Spring Meeting 2025, Washington, D.C.

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The members of BakerHostetler’s Antitrust and Competition Team are pleased to present these brief updates from the conference sessions on Day 2 at this week’s ABA Antitrust Spring Meeting in Washington, D.C....more

Kramer Levin Naftalis & Frankel LLP

Strategies for Preparing the New Hart-Scott-Rodino Forms

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On Feb. 10, 2025, the new premerger notification and report forms under the Hart-Scott-Rodino (HSR) Act became effective. The new HSR forms make significant changes to the reporting obligations of both acquiring and acquired...more

Ballard Spahr LLP

Business Better Podcast Episode: Bridging Campuses: Legal Insights on Education Industry Consolidation – Mergers, Acquisitions,...

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This episode is part of our “Bridging Campuses: Legal Insights on Education Industry Consolidation” series, where we discuss trends in consolidation and closures in higher education, and outline common characteristics of...more

Frost Brown Todd

Antitrust Developments Update for March 2025

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The Federal Trade Commission (FTC) adjusts the minimum dollar jurisdictional thresholds that determine reportability under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act) based on changes to gross national...more

Epstein Becker & Green

Revised HSR Thresholds Now in Effect

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Each year, the minimum jurisdictional thresholds associated with the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR) are adjusted by the Federal Trade Commission (FTC). The 2025 adjustments went into effect on...more

K&L Gates LLP

HSR Overhaul Takes Effect: A New Era For Dealmakers

K&L Gates LLP on

On 10 February 2025, the Federal Trade Commission’s (FTC) overhaul of the rules implementing the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR) became effective. The new rules now apply to all reportable...more

Robinson Bradshaw

New HSR Rule: Practical Guidance for Corporate Counsel

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The FTC’s new Hart-Scott-Rodino rule, which we described in a previous publication, took effect earlier this month. Below are five key takeaways for corporate counsel...more

Epstein Becker & Green

New HSR Premerger Notification Requirements Take Effect

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The new Hart-Scott-Rodino (HSR) Premerger Notification and Report Form (the “Form”) went into effect on February 10, 2025....more

Whiteford

Client Alert: Winter 2025 Antitrust M&A Law Developments

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The Federal Trade Commission, the agency that administers the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (“HSR Act”), has announced the annual adjustments to its coverage, filing fee, and other dollar-denominated...more

Axinn, Veltrop & Harkrider LLP

Global Antitrust Shifts: How New U.S. and Australian Policies Will Impact Merger Review and Government Enforcement

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We’re excited to be visiting Sydney next week to catch up with competition law colleagues on our way to the ABA 2025 Asia-Pacific Conference. This is a time of unprecedented activity and change in antitrust law and policy...more

McCarter & English, LLP

KKR Countersues DOJ for Confusing and Contradictory HSR Rules

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Not every investment firm countersues the acting assistant attorney general of the United States for the Antitrust Division, the United States Department of Justice (Antitrust Division), the Federal Trade Commission (FTC),...more

Epiq

Artificial Intelligence Invigorates the HSR Filing Process

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In October 2024, the Federal Trade Commission (FTC) issued its final rules governing pre-merger notification protocols under the Hart-Scott-Rodino Act (HSR Act). The Antitrust Division of the US Department of Justice quickly...more

McGuireWoods LLP

The New HSR Rule Is Effective, Increasing Filing Obligations

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The much-anticipated new rule expanding the requirements for Hart-Scott-Rodino Act (HSR) filings went into effect Feb. 10, 2025. The rule, which is projected to lead to a substantial increase in the time and effort required...more

Sheppard Mullin Richter & Hampton LLP

Navigating the Matrix of State Healthcare Approvals

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The outlook for federal antitrust enforcement remains murky, at best, with uncertainty about whether the new federal HSR rules, merger guidelines, and existing enforcement actions. The forecast for state antitrust...more

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