News & Analysis as of

State Attorneys General Antitrust Provisions Hart-Scott-Rodino Act

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

Latham & Watkins LLP on

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

Bass, Berry & Sims PLC on

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”

White & Case LLP on

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

WilmerHale on

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

Stinson LLP on

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

Goodwin

States Continue to Pursue and Expand Healthcare Market Oversight at an Unprecedented Pace, with Significant Implications for...

Goodwin on

In recent years, states have shown an increased interest in regulating healthcare markets. The trend has accelerated further since the start of 2025, with a flurry of proposals in at least 12 states. ...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

BakerHostetler

Trump 2.0 - What To Expect In Antitrust Enforcement

BakerHostetler on

In his return to the White House, President-elect Trump inherits an aggressive antitrust enforcement regime from the Biden administration – an enforcement regime that was born and developed in many respects during Trump’s...more

McDermott Will & Emery

States Want in on the Merger Review Fun

While they have long taken a back seat to federal merger reviews, US states are becoming increasingly involved in merger reviews, including potentially requiring premerger notifications on a broad scale. On July 24, 2024, the...more

Stevens & Lee

Louisiana’s COPA Exempts Hospital Acquisitions from Federal Antitrust Laws

Stevens & Lee on

As explained in prior posts, the Federal Trade Commission (“FTC”) filed suit in April of this year in Federal District Court for the District of Columbia seeking to enjoin Louisiana Children’s Medical Center (“LCMC”) from...more

Cozen O'Connor

NAAG Hosts Antitrust Bootcamp: State/Federal Cooperation Is Key

Cozen O'Connor on

The National Association of Attorneys General (NAAG)’s Eastern Region Meeting, held August 1-3, 2023 in Connecticut in conjunction with the Attorney General Alliance, included an “Antitrust Bootcamp” that surveyed the history...more

Morrison & Foerster LLP

Congress Increases Merger Filing Fees for Large Deals and Makes Other Significant Changes

Congress passed the Consolidated Appropriations Act of 2023 (the “Act”) on December 22, 2022, and President Biden signed it into law on December 29, 2022. The Act significantly amends the Hart-Scott-Rodino Act (the “HSR Act”)...more

Orrick - Antitrust Watch

State Attorneys General Ramping up Merger Enforcement

Last month, Colorado Governor Jared Polis signed a law repealing a provision of the Colorado Antitrust Act that prohibited challenging a merger under state law where the federal antitrust agencies did not also challenge the...more

Wilson Sonsini Goodrich & Rosati

2019 Antitrust Year in Review

Wilson Sonsini Goodrich & Rosati (Wilson Sonsini) is pleased to present its 2019 Antitrust Year in Review, which summarizes the most significant antitrust matters and developments of the past year. Over the past few years,...more

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