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Hart-Scott-Rodino Act Premerger Notifications State Attorneys General

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

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

Goodwin on

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

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

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

Sheppard Mullin Richter & Hampton LLP

Navigating the Matrix of State Healthcare Approvals

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

Allen Matkins

Bill Would Require Filing Of HSR Notifications With California's Attorney General

Allen Matkins on

In September, the Uniform Law Commission adopted the Uniform Antitrust Pre-Merger Notification Act.  The ULC does not, of course, actually enact any laws, it merely drafts and promotes laws that it would like to see made...more

Orrick, Herrington & Sutcliffe LLP

State AGs May Play a Bigger Role in Merger Review

Republished with permission from, The Threshold, a publication of the Mergers and Acquisitions Committee of the American Bar Association Antitrust Law Section. This edition of the Threshold discusses the current and proposed...more

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