The Paul, Weiss Antitrust Practice advises clients on a full range of global antitrust matters, including antitrust regulatory clearance, government investigations, private litigation, and counseling and compliance. The firm represents clients before antitrust and competition authorities in the United States, the European Union, the United Kingdom and other jurisdictions around the world.
Client News
Intuitive Surgical Wins High-Stakes Antitrust Trial Regarding da Vinci Surgical System
Paul, Weiss achieved a significant victory at trial for surgical robot maker Intuitive Surgical, Inc., in a high-stakes antitrust suit brought by Surgical Instrument Service Company, Inc., (SIS) in the Northern District of California.
» moreClient News
IBM Completes $6.4 Billion Acquisition of HashiCorp
See Also
- Steven J. Williams
- Dotun Obadina
- John C. Kennedy
- Scott A. Barshay
- David E. Sobel
- Joshua H. Soven
- Nicole Kar
- Christopher M. Wilson
- Rich Pepper
- Katharine R. Haigh
- Marta P. Kelly
- J. Todd Hahn
- Christopher Gonnella
- Jarrett R. Hoffman
- Katherine B. Forrest
- Gregory F. Laufer
- Geoffrey R. Chepiga
- John P. Carlin
- Ariane Rockoff-Kirk
- Pietro J. Signoracci
- Peter Carey
- Jonathan H. Ashtor
- Brianna van Kan
- Sohail Itani
- Scott M. Sontag
- Peter E. Fisch
- Mergers & Acquisitions
- Artificial Intelligence
- Digital Technology
- Corporate
- Executive Compensation
- IP & Technology Transactions
- Tax
- Litigation
- Real Estate
- Antitrust
Paul, Weiss advised IBM on its all-cash acquisition of HashiCorp Inc. for $35 per share, representing an enterprise value of $6.4 billion.
» moreClient News
Faire Wholesale Wins Dismissal With Prejudice of Monopolization Claims
Paul, Weiss won a major victory for Faire Wholesale, Inc., an AI-powered online wholesale marketplace platform, in an antitrust suit brought by competitor Tundra, Inc., obtaining the dismissal of the case with prejudice.
» moreAwards & Recognition
Nicole Kar Named a Top Advisor by Foreign Investment Watch
Foreign Investment Watch named antitrust partner Nicole Kar to its “Top Advisors 2025” list, which recognizes the world’s leading foreign investment and national security advisors.
» moreAWARDS & RECOGNITION
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Three Paul, Weiss Partners Named to Washingtonian’s List of Washington D.C.’s Top Antitrust Lawyers
Washingtonian magazine featured partners Bill Isaacson, Scott Sher and Josh Soven on its “Washington D.C.’s Top Lawyers: Antitrust” list, which biennially recognizes the city’s top legal talent in antitrust, as voted by area lawyers.
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Paul, Weiss “Highly Recommended” Across Multiple Regions in Global Competition Review’s GCR 100 2025
Global Competition Review (GCR) ranked Paul, Weiss as “highly recommended” in the publication’s 2025 “GCR 100” lists in the New York, Washington and UK jurisdictions.
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Meredith Dearborn Named a Top Antitrust Lawyer by the Daily Journal
The Daily Journal recognized litigation partner Meredith Dearborn as one of its 2024 “Top Antitrust Lawyers.”
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Paul, Weiss Newly Ranked Among the Premier UK Firms by The Legal 500 UK
The Legal 500 UK has ranked Paul, Weiss among the leading UK law firms in the 2025 edition of its directory, with the firm ranking highly in five practice areas.
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Paul, Weiss Receives Top Rankings in Chambers UK 2025
Paul, Weiss is recognized as a leading firm across three practice areas and received 15 individual lawyer rankings in the 2025 edition of Chambers UK, including new rankings in the “Banking & Finance: Sponsors (London)” and “Capital Markets: High-Yield Products (UK-wide)” practices, as well as top-tier partner rankings in the firm’s banking, competition and capital markets practices.
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Karen Dunn, Jeannie Rhee and Amy Mauser Recognized by The American Lawyer for Pretrial Win in Google Ad Tech Case
Litigation partners Karen Dunn and Jeannie Rhee and counsel Amy Mauser were recognized in The American Lawyer’s “Litigation Daily” column for their major pretrial victory for Google in the government’s landmark civil antitrust case over the company’s alleged monopolization of advertising technology.
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Annie Herdman and Brette Tannenbaum Named to GCR’s 40 Under 40 List
Paul, Weiss partners Annie Herdman and Brette Tannenbaum were named to the Global Competition Review’s 2024 “40 Under 40” list, which recognizes the next generation of leading antitrust practitioners worldwide at a time of increasing global focus on competition enforcement and policy.
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Paul, Weiss “Highly Recommended” in Global Competition Review’s GCR 100 2024
Global Competition Review (GCR) once again ranked Paul, Weiss as “highly recommended” in the publication’s 2024 “GCR 100” lists in the New York and Washington, D.C., regions.
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Paul, Weiss Named D.C. Antitrust Litigation Department of the Year by National Law Journal
The National Law Journal recognized Paul, Weiss and its D.C. team as Washington’s “Litigation Department of the Year – Antitrust” at its 2024 Legal Awards.
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Twenty-Two Paul, Weiss Partners Named Among Lawdragon’s 500 Leading Global Antitrust & Competition Lawyers
Lawdragon recognized 22 Paul, Weiss partners on its inaugural “Lawdragon 500 Leading Global Antitrust & Competition Lawyers” list, which recognizes the elite lawyers parrying for an equal playing field for corporations and consumers worldwide.
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Paul, Weiss Shortlisted for Several Global Competition Review Awards
Global Competition Review shortlisted Paul, Weiss in several categories in its annual GCR Awards, which recognize the cases, law firms, lawyers and enforcers who excelled in the competition and antitrust space over the past year.
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Karen Dunn and Jessica Phillips Named Among Daily Journal’s Leading Commercial Litigators
The Daily Journal named litigation partners Karen Dunn and Jessica Phillips to its 2025 “Leading Commercial Litigators” list, which annually spotlights the top performing bet-the-company litigators across the country.
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Paul, Weiss Named a Finalist Across Two Categories in Concurrences’ Antitrust Writing Awards
Concurrences recently shortlisted articles written by Paul, Weiss lawyers as some of last year’s best business articles in two categories, part of the publication’s annual Antitrust Writing Awards.
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Annie Herdman Named to The Lawyer’s 2025 “Hot 100” List
The Lawyer featured antitrust partner Annie Herdman as one of its 2025 “Hot 100” lawyers.
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Karen Dunn, Bill Isaacson, Catherine Nyarady and Erin Morgan Recognized by The American Lawyer for Qualcomm Trial Win
Litigation partners Karen Dunn, Bill Isaacson, Catherine Nyarady and Erin Morgan were recognized in The American Lawyer’s “Litigation Daily” column for winning a decisive jury verdict for Qualcomm Incorporated.
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Three Paul, Weiss Partners Named to Washingtonian’s List of Washington D.C.’s Top Antitrust Lawyers
Washingtonian magazine featured partners Bill Isaacson, Scott Sher and Josh Soven on its “Washington D.C.’s Top Lawyers: Antitrust” list, which biennially recognizes the city’s top legal talent in antitrust, as voted by area lawyers.
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Paul, Weiss “Highly Recommended” Across Multiple Regions in Global Competition Review’s GCR 100 2025
Global Competition Review (GCR) ranked Paul, Weiss as “highly recommended” in the publication’s 2025 “GCR 100” lists in the New York, Washington and UK jurisdictions.
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Meredith Dearborn Named a Top Antitrust Lawyer by the Daily Journal
The Daily Journal recognized litigation partner Meredith Dearborn as one of its 2024 “Top Antitrust Lawyers.”
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Paul, Weiss Newly Ranked Among the Premier UK Firms by The Legal 500 UK
The Legal 500 UK has ranked Paul, Weiss among the leading UK law firms in the 2025 edition of its directory, with the firm ranking highly in five practice areas.
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Paul, Weiss Receives Top Rankings in Chambers UK 2025
Paul, Weiss is recognized as a leading firm across three practice areas and received 15 individual lawyer rankings in the 2025 edition of Chambers UK, including new rankings in the “Banking & Finance: Sponsors (London)” and “Capital Markets: High-Yield Products (UK-wide)” practices, as well as top-tier partner rankings in the firm’s banking, competition and capital markets practices.
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Karen Dunn, Jeannie Rhee and Amy Mauser Recognized by The American Lawyer for Pretrial Win in Google Ad Tech Case
Litigation partners Karen Dunn and Jeannie Rhee and counsel Amy Mauser were recognized in The American Lawyer’s “Litigation Daily” column for their major pretrial victory for Google in the government’s landmark civil antitrust case over the company’s alleged monopolization of advertising technology.
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Annie Herdman and Brette Tannenbaum Named to GCR’s 40 Under 40 List
Paul, Weiss partners Annie Herdman and Brette Tannenbaum were named to the Global Competition Review’s 2024 “40 Under 40” list, which recognizes the next generation of leading antitrust practitioners worldwide at a time of increasing global focus on competition enforcement and policy.
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Paul, Weiss “Highly Recommended” in Global Competition Review’s GCR 100 2024
Global Competition Review (GCR) once again ranked Paul, Weiss as “highly recommended” in the publication’s 2024 “GCR 100” lists in the New York and Washington, D.C., regions.
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Paul, Weiss Named D.C. Antitrust Litigation Department of the Year by National Law Journal
The National Law Journal recognized Paul, Weiss and its D.C. team as Washington’s “Litigation Department of the Year – Antitrust” at its 2024 Legal Awards.
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Twenty-Two Paul, Weiss Partners Named Among Lawdragon’s 500 Leading Global Antitrust & Competition Lawyers
Lawdragon recognized 22 Paul, Weiss partners on its inaugural “Lawdragon 500 Leading Global Antitrust & Competition Lawyers” list, which recognizes the elite lawyers parrying for an equal playing field for corporations and consumers worldwide.
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Paul, Weiss Shortlisted for Several Global Competition Review Awards
Global Competition Review shortlisted Paul, Weiss in several categories in its annual GCR Awards, which recognize the cases, law firms, lawyers and enforcers who excelled in the competition and antitrust space over the past year.
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Karen Dunn and Jessica Phillips Named Among Daily Journal’s Leading Commercial Litigators
The Daily Journal named litigation partners Karen Dunn and Jessica Phillips to its 2025 “Leading Commercial Litigators” list, which annually spotlights the top performing bet-the-company litigators across the country.
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Paul, Weiss Named a Finalist Across Two Categories in Concurrences’ Antitrust Writing Awards
Concurrences recently shortlisted articles written by Paul, Weiss lawyers as some of last year’s best business articles in two categories, part of the publication’s annual Antitrust Writing Awards.
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Annie Herdman Named to The Lawyer’s 2025 “Hot 100” List
The Lawyer featured antitrust partner Annie Herdman as one of its 2025 “Hot 100” lawyers.
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Karen Dunn, Bill Isaacson, Catherine Nyarady and Erin Morgan Recognized by The American Lawyer for Qualcomm Trial Win
Litigation partners Karen Dunn, Bill Isaacson, Catherine Nyarady and Erin Morgan were recognized in The American Lawyer’s “Litigation Daily” column for winning a decisive jury verdict for Qualcomm Incorporated.
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Three Paul, Weiss Partners Named to Washingtonian’s List of Washington D.C.’s Top Antitrust Lawyers
Washingtonian magazine featured partners Bill Isaacson, Scott Sher and Josh Soven on its “Washington D.C.’s Top Lawyers: Antitrust” list, which biennially recognizes the city’s top legal talent in antitrust, as voted by area lawyers.
Awards & Recognition
Annie Herdman Named a Law.com International Rising Star
Law.com International named antitrust partner Annie Herdman to its “Rising Stars: The UK Legal Industry's Best Up-And-Coming Women, 2025” list, which annually recognizes the most exceptional up-and-coming women lawyers from the nation’s top law firms.
» morePUBLICATIONS
Meredith Dearborn, Tee St. Matthew-Daniel, Russell Wirth and Mark Laramie Publish Article in Daily Journal
Partners Meredith Dearborn and Tee St. Matthew-Daniel, associate Russell Wirth and practice management attorney Mark Laramie co-wrote an article for the Daily Journal on the potential consequences of a new antitrust policy shift in California.
Publications
Update on Trump Administration Antitrust Enforcement
See Also
- Paul D. Brachman
- Katherine B. Forrest
- Martha L. Goodman
- Katharine R. Haigh
- Marta P. Kelly
- Jessica E. Phillips
- Jacqueline P. Rubin
- Scott A. Sher
- Yuni Yan Sobel
- Joshua H. Soven
- Eyitayo “Tee” St. Matthew-Daniel
- Aidan Synnott
- Brette Tannenbaum
- Christopher M. Wilson
- Charles E. Crandall IV
- Chad de Souza
- J. Todd Hahn
- Zuzanna Knypinski
- John W. Magruder
- Mark R. Laramie
- Antitrust
In the weeks since Inauguration Day, the Trump administration has taken several significant actions related to antitrust enforcement. We discuss senior DOJ and FTC leadership appointments, developments in merger review, statements related to labor markets and potential non-compete enforcement, and changes intended to expand presidential power over the FTC.
» moreClient News
TPG to Acquire Altus Power in Take-Private Deal Valued at $2.2 Billion
See Also
Paul, Weiss advised TPG on the antitrust aspects of its take-private acquisition of Altus Power, Inc., one of the largest owners of commercial-scale solar power generation in the U.S., valued at approximately $2.2 billion, including outstanding debt.
» morePublications
Scott Sher Discusses Upcoming Changes to Merger Review Requirements With Law360
Global Antitrust Practice Group Co-Chair Scott Sher spoke with Law360 about the impending updates to merger notification requirements set to take effect on February 10.
» moreEvents
Tee St. Matthew-Daniel Discusses Criminal Antitrust Enforcement at ABA’s White Collar Crime Institute
Litigation partner Tee St. Matthew-Daniel participated in a panel, “Recent Trends in Criminal Antitrust Enforcement,” as part of the American Bar Association’s 40th White Collar Crime Institute on March 5.
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20 Years of Antitrust Remedies in Review: Lessons for the Future?
The European Commission recently published its report on the implementation and effectiveness of remedies in antitrust behavioral cases between 2003-2022. We summarize the report’s key findings and recommendations.
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The Robinson-Patman Act Explained: FTC Files First Government Enforcement Price Discrimination Complaint in Nearly 25 Years
For the first time in nearly a quarter century, the FTC has brought an enforcement action alleging violations of the Robinson-Patman Act, a law prohibiting price discrimination passed in 1936. We discuss the law, the FTC’s lawsuit, and the implications of enforcing the law for certain industries.
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Nicole Kar, Fynn Dewald and Timothy Noelanders Publish Article on New EU Antitrust Report in Law360
Antitrust partner Nicole Kar and associates Fynn Dewald and Timothy Noelanders co-wrote an article in Law360 on the European Commission’s recent report on the implementation and effectiveness of remedies in antitrust behavioral cases.
» morePublications
A turning point? Merger Control, Foreign Direct Investment and Foreign Subsidies Regulation in 2025
See Also
- John P. Carlin
- Ross Ferguson
- Katharine R. Haigh
- Annie Herdman
- Nicole Kar
- Marta P. Kelly
- Henrik Morch
- Rich Pepper
- Scott A. Sher
- Yuni Yan Sobel
- Joshua H. Soven
- Eyitayo “Tee” St. Matthew-Daniel
- Aidan Synnott
- Christopher M. Wilson
- Sophie Chen
- Charles E. Crandall IV
- Lisa Danzig
- Chad de Souza
- J. Todd Hahn
- Zuzanna Knypinski
- John W. Magruder
- Nathan Mitchell
- Lauren O'Brien
- James Parkinson
- Mark R. Laramie
- Alexander Wathan
- Antitrust
- Foreign Direct Investment Regulation
With 2025 set to be a year of tensions and reckonings among competition, FDI and FSR agencies around the world, we highlight five key developments and trends impacting global deal-making.
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