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Yonaton M. Rosenzweig

Partner

T 213.655.9642 Los Angeles
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Yoni Rosenzweig is a proven litigator and trial attorney with an extensive track record of success, having secured favorable outcomes as lead counsel in matters with nine- and ten-figure dollar amounts at stake. From the beginning of litigation, Yoni immerses himself in the details of the matter in order to leverage the strongest aspects of the case and best position his clients for success.

Yoni is the co-chair of the firm's antitrust group. His experience includes litigating on behalf of clients in disputes concerning antitrust, unfair competition, entertainment, intellectual property, and complex commercial matters. In addition to handling cases in state and federal court, Yoni also has significant experience in private arbitration.

Practice Highlights

Fifteen years of antitrust experience

Yoni has represented clients as an antitrust litigator for over fifteen years, seeking to enforce or defend claims under federal and state antitrust law. He has litigated claims for price fixing, supply restriction, exclusive dealing, predatory pricing, patent traps, and other claims. His practice extends to counseling corporate clients on antitrust compliance and ethics programs, as well.

Entertainment litigation

In the hard-fought world of entertainment and sports litigation, Yoni has achieved measurable success for clients in distribution matters, copyright disputes, employee mobility, and other entertainment matters.

Emphasis on technology

Technology often outstrips the state of the law, and that presents a challenge to companies on the leading edge. Much of Yoni's experience relates to emerging or complex technologies that require a simple explanation to a judge, arbitrator, or a jury. Yoni has worked on significant cases in the arenas of computer technology, smartphones, cellular communication, medical devices, SaaS (software as a service), and aviation technology. For any dispute where the technology presents a learning curve, Yoni can efficiently and effectively understand it and apply existing law to benefit the client's goals.

RealPage pricing antitrust litigation

Defending accused artificial intelligence pricing tool against claims of collusion by virtue of using a software pricing advisory tool. (Ongoing)

In re Generic Pharmaceutical Price Fixing Antitrust Litig.

Represented major pharmacy in connection with price-fixing dispute regarding generic pharmaceuticals. (2023)

In re Replacement Tire Antitrust Litg.

Represented foreign tire manufacturer and its domestic affiliate accused of price fixing replacement tires for passenger cars. (2024)

Gibson v. National Association of Realtors / Batton v. National Association of Realtors

Defending major brokerage firms against claims of price fixing via participation in National Association of Realtors' rules concerning broker compensation. (2024)

Scharpf, et al. v. General Dynamics Corp., et al.

Defended defense contractor accused of entering no-poach agreement. Successfully moved to dismiss all claims. (E.D. Va. 2024)
*Denotes an attorney's experience prior to joining Davis Wright Tremaine
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Admitted to Practice

  • California, 2006
  • U.S. Court of Appeals, 9th Circuit
  • U.S. District Court, Central District of California
  • U.S. District Court, Northern District of California
  • U.S. District Court, Southern District of California

Education

  • J.D., Harvard Law School, 2005
    • Sheldon Fellow, 2005-2006
  • B.A., Politics & Economics, University of Pennsylvania, 2002, summa cum laude
    • Phi Beta Kappa

Memberships & Affiliations

    • Antitrust Section, American Bar Association, 2010-present
    • Antitrust and Litigation Sections, Los Angeles County Bar Association, 2010-present

Professional Recognition

    • Selected to "Southern California Super Lawyers," in Antitrust Litigation, 2016-2022

Background

    • Partner, Katten Muchin Rosenman LLP, Los Angeles, 2015-2022
    • Senior Associate, Katten Muchin Rosenman LLP, Los Angeles, 2010-2015
    • Associate, Quinn Emanuel Urquhart & Sullivan, LLP, Los Angeles, 2006-2010
    • Summer Law Clerk, U.S. Attorney's Office, District of Massachusetts, Boston, 2004
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©1996-2025 Davis Wright Tremaine LLP. ALL RIGHTS RESERVED. Attorney Advertising. Not intended as legal advice. Prior results do not guarantee a similar outcome.