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Hart-Scott-Rodino Act

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 -
Cozen O'Connor

Washington Becomes First State to Require Premerger Notification Filing

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Washington AG Nick Brown announced that Washington is the first state to require companies to file a premerger notification with the state AG’s office concurrently with the federal filing required under the Hart-Scott-Rodino...more

Cozen O'Connor

Washington and Colorado Enact Uniform Premerger Notification Laws: What Businesses Need to Know About The New Era in State AG...

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As of July 27, Washington State is now the first state to enact a uniform antitrust premerger notification law, and as of August 6, 2025, Colorado will be the second. Both new notification laws are similar, as they are...more

Vinson & Elkins LLP

“Mini-HSR Acts” Multiply in the States; Merger Enforcement Developments in Washington, Colorado and More

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Parties to transactions should be aware of new requirements for state-level merger reporting – so-called “mini-HSR Acts” – modeled on the Uniform Antitrust Pre-Merger Notification Act (“UAPNA”). Washington and Colorado have...more

Dinsmore & Shohl LLP

Make Sure to CC the AG: Colorado and Washington Require State-Level Merger Notices

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Colorado and Washington have each enacted statutes modeled after the Uniform Law Commission’s Uniform Antitrust Pre-Merger Notification Act. Soon, both states will require parties to certain mergers and acquisitions (M&A)...more

Fenwick & West LLP

Washington Becomes First State to Enact ‘Mini HSR’ Notification Requirement

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As of July 27, 2025, federal Hart-Scott-Rodino (HSR) Act filings will also need to be submitted to the Washington Attorney General (WA OAG) under Washington State’s Antitrust Premerger Notification Act (APNA) if the parties...more

Epstein Becker & Green

FTC’s Proposed Budget Trims Staff

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A review of the Federal Trade Commission’s (FTC’s) proposed budget for fiscal year 2026 may shed light on the FTC’s activities for the near future....more

Hogan Lovells

State premerger notification requirements take effect this summer

Hogan Lovells on

Washington and Colorado recently passed laws that require parties that file premerger filings pursuant to the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act) and meet certain state-specific thresholds to...more

Paul Hastings LLP

New Mini-HSR Laws Take Effect This Summer

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Starting Sunday, July 27, 2025, any party to an M&A transaction that triggers a federal Hart-Scott-Rodino (HSR) Act filing must also submit a copy to the Washington attorney general if the filing party (1) maintains a...more

EDRM - Electronic Discovery Reference Model

From Volatility to Vision: June 2025 HSR Filings Show Steady Strategic Focus

ComplexDiscovery Editor’s Note: This report examines U.S. Hart-Scott-Rodino (HSR) filings through June 2025, which reached 1,519 transactions for the fiscal year to date, including 157 filings in June. Despite GDP contraction...more

Miles & Stockbridge P.C.

Washington State Enacts First Uniform Antitrust Premerger Notification Act

On April 4, Washington became the first state to enact the Uniform Antitrust Premerger Notification Act (APNA). Under the APNA, a person making a Hart-Scott-Rodino (HSR) filing on or after July 27, 2025 must provide a copy of...more

Troutman Pepper Locke

Exclusive Licensing May Offer Biotechs a Financial Lifeline

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With volatile market conditions and recent FDA shakeups, biotech companies are increasingly focused on bolstering cash runways and accelerating R&D efforts. But fierce competition for financing has some biotechs turning to...more

HaystackID

M&A Market Shows Resilience Despite Economic Headwinds: HSR Filing Analysis Through June 2025

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The U.S. merger and acquisition landscape continues to demonstrate strategic resilience, with Hart-Scott-Rodino (HSR) premerger notification data through June 2025 revealing a market that prioritizes careful planning over...more

Ballard Spahr LLP

Washington State Merger Notification Requirements Start This Month

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Are you contemplating a merger or acquisition with a connection to Washington State? Effective July 27, 2025, any transaction requiring pre-notification under the federal Hart-Scott-Rodino Antitrust Improvements Act of 1976...more

A&O Shearman

M&A in a period of turbulence

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Macroeconomic volatility, shifting trade policies, and regulatory change continue to shape the dealmaking landscape. Here we explore the challenges and opportunities for buyers and sellers navigating uncertain markets. The...more

Stinson LLP

Colorado Joins the "Baby" HSR Trend

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State attorneys general (AGs) have a legal right to challenge anticompetitive mergers, both under the federal Clayton Act and their own state antitrust laws. And in recent years, state AGs have played increasingly larger...more

WilmerHale

Notes from the Multipolar Global Front: Navigating Multinational Antitrust Merger Reviews

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Recent developments have made navigating multinational antitrust merger reviews even more complex and replete with traps for the unwary. ...more

Bass, Berry & Sims PLC

Colorado Enacts "Mini-HSR" Law, Joining Growing State-Level Premerger Filing Trend

On June 4, Colorado became the second state to adopt the Uniform Antitrust Premerger Notification Act (Act) when Governor Jared Polis signed SB25-126 into law. Like Washington’s version of the Act, Colorado’s new law imposes...more

McGuireWoods LLP

Washington, Colorado First States to Enact Uniform Antitrust Pre-Merger Notification Act

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Washington and Colorado are the first two states to pass laws requiring certain parties to affirmatively submit their Hart-Scott-Rodino (HSR) filings to their states’ attorneys general. Both states passed laws modeled on the...more

Vinson & Elkins LLP

First 100 Days of the New HSR Rules with Antitrust Partner Kara Kuritz

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Since the FTC’s updated HSR rules took effect, merger filings have become more complex, time-consuming, and risk-sensitive. In this brief video, Antitrust Partner Kara Kuritz explains how the new framework is changing the...more

Axinn, Veltrop & Harkrider LLP

State by State, Pre-Merger Notifications Expand

In the wake of the recent major revisions to the federal merger review form, states are also getting into the act, creating broad new transaction notification requirements. Such notification requirements are not completely...more

DLA Piper

DOJ and FTC Leadership Discuss New Perspectives on Merger Enforcement

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In speeches delivered only a day apart during the first week of June, Bill Rinner, the new Deputy Assistant Attorney General in charge of merger enforcement at the Department of Justice (DOJ), and Commissioner Melissa Holyoak...more

EDRM - Electronic Discovery Reference Model

Strategic Signals: May 2025 HSR Filings Reveal Steady M&A Amid Market Shifts

ComplexDiscovery Editor’s Note: Strategic transactions in the U.S. are holding steady, even as economic pressures mount. The latest Hart-Scott-Rodino (HSR) filing data through May 2025 reveals not a retreat, but a...more

Baker Botts L.L.P.

Antitrust Scrutiny of Investors Under a New Administration

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Under the old guard of the prior administration, private equity was repeatedly under fire for alleged “flip and strip” tactics that were supposedly “at odds with competition.” Now, with new enforcers in place, a different...more

Troutman Pepper Locke

DAAG Rinner Says Merger Enforcement to Combine ‘Fairness and Robust Enforcement’

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Deputy Assistant Attorney General (DAAG) Bill Rinner’s stated goal for his June 4 speech was to provide insight into how the Department of Justice, Antitrust Division, will “handle merger review to ensure procedural fairness...more

HaystackID

Strategic Signals: May 2025 HSR Filings Reveal Steady M&A Amid Market Shifts

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Through May 2025, corporate deal activity in the United States demonstrates remarkable resilience despite mounting economic pressures. Hart-Scott-Rodino (HSR) premerger notification filings through the first eight months of...more

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