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Antitrust Violations › Sherman Act › California

DLA Piper

Three State-Level Developments Could Change the US Criminal Antitrust Enforcement Landscape

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State attorneys general (AGs) have recently signaled a more aggressive stance toward their own criminal antitrust enforcement. If they realize their ambitions, this could presage a notable shift in the US enforcement...more

A&O Shearman

California District Court Grants Software Company’s Motion To Dismiss In Algorithmic Price Fixing Case

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On March 21, 2025, Judge Jeffrey S. White of the United States District Court for the Northern District of California granted defendant software company’s motion to dismiss plaintiffs’ claims of price-fixing under the Sherman...more

Zelle LLP

Judge Donato Excludes Expert Opinion Testimony, Denies Class Certification in Klein V. Meta

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On January 24, 2025, Judge Donato granted Meta’s motion to exclude the opinions of user plaintiffs’ expert on antitrust injury. Finding that the class certification motion depended on the expert opinions offered by Dr....more

Mogin Law LLP

Does California Need a Bigger Antitrust Hammer?

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California Attorney General Rob Bonta and State Democratic Senator Melissa Hurtado want a bigger hammer to enforce California’s Cartwright Act, a key tool in prosecuting antitrust cases. The bill, SB 763, would raise the...more

Vinson & Elkins LLP

California Poised to Sharpen Antitrust Enforcement with New Penalties

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California continues to ramp up recent efforts to ferret out anticompetitive conduct in the Golden State through oversight and enforcement. In 2023, the state appointed an antitrust prosecutor to head up its new Division of...more

Troutman Pepper Locke

California DOJ to Ramp Up Criminal Antitrust Enforcement

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On March 6, the California Department of Justice’s (California DOJ) Antitrust Chief Paula Blizzard, announced at the American Bar Association’s National Institute on White Collar Crime that her office is planning to...more

Ballard Spahr LLP

California federal court denies arbitration motion in Ticketmaster case

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We previously wrote about a Ninth Circuit appeal dealing with the use of bellwether procedures to resolve mass arbitration claims brought by thousands of customers against Verizon Wireless. That appeal remains pending and is...more

Sheppard Mullin Richter & Hampton LLP

Ninth Circuit Denies Sherman Act Challenge To No-Poach Provision

Sheppard Mullin Richter & Hampton LLP on

In an important decision on August 19, 2021, the Ninth Circuit Court of Appeals in Aya Healthcare Services, Inc. v. AMN Healthcare, Inc. affirmed the grant of summary judgment in favor of AMN, finding that the...more

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