Antitrust Today

Constantine Cannon Files Amicus Brief Supporting Anthropic in AI Copyright Case

By the Constantine Cannon Antitrust Team On April 27, 2026, Constantine Cannon partner Seth Greenstein filed an amicus brief[1] on behalf of technology innovation advocacy groups Chamber of Progress[2] and Engine Advocacy[3] in support of leading AI developer Anthropic PBC in a copyright suit brought by major music publishers.  The case, Concord Music Group, Inc. v. Anthropic PBC, Case 5:24-cv-03811-EKL, alleges...

Constantine Cannon Wins Summary Judgment, then $14 Million Settlement for HDMI Licensing Administrator Inc. in License and Antitrust Dispute

By the Constantine Cannon Antitrust Team Constantine Cannon successfully defended the licensor of the HDMI interface technology, HDMI Licensing Administrator, Inc. (“HDMI LA”), against a challenge under U.S. antitrust law to their licensing program, and won a $14 million settlement for breach of contract against semiconductor chip manufacturer, Availink, Inc.

Victory on Summary Judgment on Three Key Issues

On...

Three Constantine Cannon Partners Named in The 2026 Lawdragon 500 Leading Plaintiff Financial Lawyers Guide

By the Constantine Cannon Whistleblower and Antitrust Teams Constantine Cannon is delighted to announce that three of our firm’s partners, Jean Kim, Marlene Koury, and Taline Sahakian, were selected for The 2026 Lawdragon 500 Leading Plaintiff Financial Lawyers guide.[1] The 500 Leading Plaintiff Financial Lawyers on this year’s list were chosen through submissions, editorial vetting from peers, and...

Lawyers for Sutter Health Patients Will Receive Over $100M in Fees and Costs

By the Constantine Cannon Antitrust Team November 12, 2025 - On November 6, California U.S. magistrate Judge Laurel Beeler announced her intention to grant final approval for a $228.5 million settlement in a 13-year healthcare antitrust lawsuit. The case involved allegations that Sutter Health, one of the nation’s largest and most powerful hospital chains, increased costs by imposing all-or-nothing networks on...

Two Constantine Cannon Lawyers Recognized in Global Competition Review Lexology Index: Competition 2025 Report

Constantine Cannon LLP is pleased to announce that Chairman of Constantine Cannon LLP and Managing Partner of Constantine Cannon’s Washington, D.C. office Steve Cannon and partner Ankur Kapoor have been recognized in the Global Competition Review Lexology Index: Competition 2025 Report.

The Comprehensive Guide

The publication, formerly known as “Who’s Who Legal,” is identified as “a comprehensive guide to...

Seven Constantine Cannon Lawyers Recognized in Super Lawyers 2025

Every year, Super Lawyers selects the top 5% of attorneys through a multi-phase, peer-influenced, and research-driven method that highlights professional achievements. Constantine Cannon LLP is delighted to announce that seven of our firm’s lawyers have been recognized this year. ¹

The Selection Process

This directory is a resource featuring detailed profiles of attorneys who have demonstrated excellence in...

Four Constantine Cannon Lawyers Recognized In 2026 Best Lawyers Awards

Constantine Cannon LLP is delighted to announce that four lawyers from our firm have been included in the 32ⁿᵈ edition of The Best Lawyers in America®, 2026 Edition, showcasing the top 5% of the nation’s attorneys through a comprehensive peer-review survey process.¹ Best Lawyers is committed to its process for lawyers identifying their most outstanding peers “at the highest level.” This time around,...

Three Constantine Cannon Attorneys Selected to “2025 Lawdragon 500 Leading Plaintiff Financial Lawyers” 

(NEW YORK) June 6, 2025 -- Constantine Cannon is pleased to announce that three of the firm’s lawyers, Jean Kim, Marlene Koury, and Taline Sahakian, were named in the 2025 Lawdragon 500 Leading Plaintiff Financial Lawyers guide.¹ This announcement follows Ms. Sahakian’s selection to Lawdragon’s 2025 Leading Global Antitrust and Competition Lawyers guide.  

Lawdragon’s Announcement  

The 500 Leading...

Constantine Cannon, Lead Class Counsel, Submits Settlement Agreement for Preliminary Approval in Sutter Health Antitrust Class Action Lawsuit

March 25, 2025 - Upon submission of a settlement agreement for preliminary approval by the Court, Plaintiffs and Sutter have issued the following joint press release regarding the Settlement: "Sutter Health and Plaintiffs Djeneba Sidibe, Jerry Jankowski, Susan Hansen, David Herman, Optimum Graphics, Inc., and Johnson Pool & Spa, on behalf of themselves and a certified class of similarly situated persons, have...

Constantine Cannon, Lead Class Counsel, Agrees to Settle on Behalf of Premium Payers with Sutter Health in Long-Running Antitrust Class Action Lawsuit

We are pleased to announce that Constantine Cannon, on behalf of a California premium paying class, has reached an agreement in principle to settle a long-running healthcare antitrust case against California’s Sutter Health, one of the nation’s largest and most powerful hospital chains. The parties’ settlement is subject to Court approval.  The certified class included roughly 3 million health insurance...