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US state antitrust laws poised to heighten regulatory hurdles for M&A

By Flavia Fortes ( April 25, 2025, 15:56 GMT | Comment) -- US states are ramping up antitrust enforcement, with several enacting broader antitrust laws and new requirements for companies to provide advance notice of proposed transactions. While these state-specific laws traditionally require local review of a subset of transactions — often limited to deals impacting health care in the state — regulators appear ready to broaden their focus to other industries. Washington state was the first to make a move, enacting this month a general premerger notification regime that isn't industry specific. US states are ramping up antitrust enforcement, with several enacting broader antitrust laws and new requirements for companies to provide advance notice of proposed transactions....

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