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Antitrust Provisions Premerger Notifications State Attorneys General

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

McDermott Will & Emery

Washington State Enacts Merger Review Regime

McDermott Will & Emery on

Washington is the first state to enact the Uniform Antitrust Premerger Notification Act, which requires merging parties that submit a federal filing under the Hart-Scott-Rodino (HSR) Act (15 U.S.C. Sec. 18(a)) to also submit...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

Sheppard Mullin Richter & Hampton LLP

State Antitrust Enforcement Roundup: New Laws; New Potential Legislation; and New (and Broader) Areas of Focus

The number of U.S. states implementing or considering new antitrust laws (or supplementing existing laws) targeting proposed transactions continues to grow. As detailed in our healthcare merger matrix, many states have...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

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

Wilson Sonsini Goodrich & Rosati

States Expand Premerger Filings Family by Adopting “Baby-HSR” Laws to Review More Transactions

In a growing trend, states are requiring more premerger filings by enacting “baby-HSR” laws modeled after the federal Hart-Scott-Rodino (HSR) Act. These state-level statutes require parties to certain mergers and acquisitions...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

Sheppard Mullin Richter & Hampton LLP

Amending New York’s Donnelly Act: If at First You Don’t Succeed, Try, Try, and Try Again

A proposed amendment to New York’s Donnelly Act, introduced earlier this month, would significantly broaden the scope of the antitrust statute enacted in 1899. New York Senate Bill 335, titled the “Twenty-First Century...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

WilmerHale

Developments in Antitrust Law: Keep an Eye on New York

WilmerHale on

Although much attention recently has been focused upon debates in Congress, potential legislative changes to U.S. antitrust law are not limited to proposals at the federal level. Many states are considering changes to their...more

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