News & Analysis as of

Merger Controls New Legislation Premerger Notifications

Skadden, Arps, Slate, Meagher & Flom LLP

Pre-Merger Notification Proliferation

What is new: Some U.S. states have enacted pre-merger notification regimes of general applicability, requiring parties making HSR filings to also notify state attorneys general, with similar legislation pending in other...more

Miles & Stockbridge P.C.

Colorado Becomes Second State to Enact Uniform Antitrust Premerger Notification Act

On Aug. 6, Colorado became the second state to enact the Uniform Antitrust Premerger Notification Act (APNA), following Washington earlier this year. ...more

Morgan Lewis

‘Mini-HSR’ Acts Take Effect in Washington and Colorado, with Similar Legislation Pending in Other States

Morgan Lewis on

Colorado and Washington state recently became the first states to adopt their own smaller versions of the Hart-Scott-Rodino Antitrust Improvements (HSR) Act. These “mini-HSR” state laws require certain parties that submit...more

K&L Gates LLP

Colorado Enacts Uniform Antitrust Pre-Merger Notification Law

K&L Gates LLP on

On 4 June 2025, Colorado became the second state—following the state of Washington—to enact a broad, state-level, industry-agnostic premerger notification regime. Under Colorado’s new law, any party that submits a 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

Latham & Watkins LLP

Premerger Notification Arrives in the Philippines

Latham & Watkins LLP on

The Philippine Competition Commission has implemented compulsory merger control, while other Philippine antitrust provisions await full application. The world’s 12th most populous nation joins the global antitrust...more

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