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  1. Capabilities

Antitrust Transactions

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  • Overview
  • Related Insights & News
  • Key Contacts

    Peter CrowtherRichard FalekConor Reidy
    View Our Full Team

    Resources

    Competition Corner

    We have helped clients consummate market-shaking mergers and joint ventures successfully—across multiple jurisdictions worldwide—while navigating the entire merger-review and antitrust-clearance process. We manage international filings on multi-billion-dollar mergers, address third-party complaints, and facilitate the divestiture of assets, when necessary. We handle all aspects of the competition law issues associated with a transaction, including obtaining regulatory clearances, providing pre-transactional counsel and antitrust advice throughout the diligence and integration planning stages, and allocating antitrust risk during deal negotiations.

    Key Contacts

    Peter CrowtherRichard FalekConor Reidy
    View Our Full Team

    We provide clients with a strategic advantage by leveraging our decades of practical experience, deep agency knowledge and mutual respect, and sound judgment, and applying it to the unique circumstances of each matter. Our accomplished lawyers routinely obtain regulatory approval of transactions from the DOJ, FTC, and competition agencies worldwide. We advise clients on handling Hart-Scott-Rodino filings, responding to FTC and DOJ Second Requests, and employing proactive measures to prevent the issuance of Second Requests in many transactions.

    Although our primary objective is to achieve swift resolutions to merger reviews without court challenge, we recognize that litigation may sometimes become necessary. When parties are prepared to litigate, we develop our strategy from day one based on our uniquely extensive experience litigating merger challenges against the FTC and DOJ through trial and appeals.

    We have deep experience litigating merger challenges, brought by both antitrust regulators and private plaintiffs, seeking to enjoin or unwind mergers. When necessary, we litigate FTC and DOJ merger challenges in federal court proceedings and represent clients in related administrative proceedings, ensuring our clients receive robust support throughout the entire process.

    We regularly advise our clients on the antitrust implications involved in establishing and structuring joint ventures and other collaborative relationships and alliances. We offer guidance both during the formation phase and through ongoing compliance. We also provide comprehensive advice on competition law aspects of commercial contracts, including joint-venture agreements; transfers of intellectual property rights and connected licenses; distribution, agency, and franchising agreements; and sales and long-term supply agreements.

    When multiple global filings are required, we understand the importance of speaking with a single voice, given that agencies across jurisdictions often cooperate with one another. Leveraging our well-established network of trusted local firms, we effectively coordinate consistent worldwide merger-clearance positions. In one recent deal, we successfully coordinated with competition authorities in the United States, European Union, Australia, Brazil, China, Mexico, South Korea, Turkey, and Ukraine. Whether remedies are required or not, this close coordination, coupled with our deep understanding of our clients’ legal and business objectives, has proven to be substantially beneficial to our clients.

    Our internationally renowned lawyers have deep experience providing antitrust counseling and compliance advice involving joint venture formation and approval, mergers and acquisitions—including pre-transactional counseling to identify targets and minimize the chance of antitrust challenges—as well as contracting practices, distribution restrictions, and pricing practices.

    Our pre-transactional antitrust counseling services enable clients to identify potential antitrust risks associated with their transactions at the earliest opportunity, use that information to assess the relative risk of potential bidders or targets, and effectively price and allocate that risk among the parties. When a strategic transaction is expected to face regulatory scrutiny, we develop proactive strategies to anticipate and quickly address agencies’ concerns. Our approach involves helping clients create a strong documentary record of the procompetitive rationales for a transaction, developing customer outreach strategies to communicate the deal’s benefits, preparing materials for enforcer engagement, and—when necessary—exploring transaction structures and potential remedies that resolve agency concerns.

    Related Capabilities

    Antitrust/Competition
    Technology Antitrust
    Mergers & Acquisitions
    Private Equity
    Healthcare
    Life Sciences

    Resources

    Competition Corner

    Notable

    Ranked Nationally in Antitrust Law

    Best Law Firms® 2025

    “Highly Recommended”

    Global Competition Review 2023

    Ranked in Antitrust: Merger Control

    The Legal 500 US 2024
    Best Law Firms® 2025

    Ranked Nationally in Antitrust Law

    Global Competition Review 2023

    “Highly Recommended”

    The Legal 500 US 2024

    Ranked in Antitrust: Merger Control

    ResourceSurvey of State Transaction Notification Requirements
    This survey provides a comprehensive overview of Baby HSR laws throughout the United States, identifying which states have adopted premerger notification requirements and summarizing key details such as the types of transactions covered, the content of required notices, and the timing of the review. 
    Learn More
    ResourceSurvey of State Transaction Notification Requirements
    This survey provides a comprehensive overview of Baby HSR laws throughout the United States, identifying which states have adopted premerger notification requirements and summarizing key details such as the types of transactions covered, the content of required notices, and the timing of the review. 
    Learn More
    INDUSTRY FOCUSTechnology Antitrust Group

    Winston’s Technology Antitrust Group assists clients with M&A, joint venture, and strategic alliance issues where technology, antitrust/competition, and IP converge.

    Learn More
    INDUSTRY FOCUSTechnology Antitrust Group

    Winston’s Technology Antitrust Group assists clients with M&A, joint venture, and strategic alliance issues where technology, antitrust/competition, and IP converge.

    Learn More

    Related Insights & News

    View All Insights & News
    Recognitions
    Winston Merits 99 Tier 1 Rankings in the 2026 Edition of Best Law Firms®

    November 6, 2025

    Blog
    Colorado Becomes Second State to Enact a Broad Premerger Notification Requirement Covering All Industries

    July 15, 2025

    Sponsorship
    Winston Sponsors The Corporate Dealmakers Forum 2025

    June 4, 2025

    In the Media
    Conor Reidy Discusses Oppositions to Indiana Hospital Merger with Law360

    May 9, 2025

    Blog
    Washington State Enacts a Broad Premerger Notification Requirement for All Industries

    May 2, 2025

    Blog
    From Pricing to Platforms: What Shifting U.S. Antitrust Enforcement Means for Retail and Consumer-Facing Businesses

    May 1, 2025

    Blog
    New, More Burdensome HSR Form Now in Effect

    February 13, 2025

    Webinar
    Antitrust Merger Review Under a Second Trump Administration

    February 12, 2025

    Blog
    DOJ Files Unprecedented Suit Challenging Allegedly Deficient HSR Filings

    January 17, 2025

    In the Media

    Richard Falek Discusses Merger Enforcement Under Trump’s FTC Pick with The Economist

    December 17, 2024

    Blog
    A Second Trump Presidency: How Will It Impact Antitrust Merger Review?

    November 14, 2024

    Recognitions
    Winston Merits 98 Tier 1 Rankings in the 2025 Edition of Best Law Firms®

    November 7, 2024

    Recognitions
    Winston Merits 99 Tier 1 Rankings in the 2026 Edition of Best Law Firms®
    November 6, 2025
    Blog
    Colorado Becomes Second State to Enact a Broad Premerger Notification Requirement Covering All Industries
    July 15, 2025
    Sponsorship
    Winston Sponsors The Corporate Dealmakers Forum 2025
    June 4, 2025
    In the Media
    Conor Reidy Discusses Oppositions to Indiana Hospital Merger with Law360
    May 9, 2025
    Blog
    Washington State Enacts a Broad Premerger Notification Requirement for All Industries
    May 2, 2025
    Blog
    From Pricing to Platforms: What Shifting U.S. Antitrust Enforcement Means for Retail and Consumer-Facing Businesses
    May 1, 2025
    Blog
    New, More Burdensome HSR Form Now in Effect
    February 13, 2025
    Webinar
    Antitrust Merger Review Under a Second Trump Administration
    February 12, 2025
    Blog
    DOJ Files Unprecedented Suit Challenging Allegedly Deficient HSR Filings
    January 17, 2025
    In the Media

    Richard Falek Discusses Merger Enforcement Under Trump’s FTC Pick with The Economist

    December 17, 2024
    Blog
    A Second Trump Presidency: How Will It Impact Antitrust Merger Review?
    November 14, 2024
    Recognitions
    Winston Merits 98 Tier 1 Rankings in the 2025 Edition of Best Law Firms®
    November 7, 2024
    View All Insights & News
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