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Shannon D. McGowan

Shannon McGowan is an associate in the Litigation department.  Shannon's practice focuses on assisting clients navigate a range of antitrust issues.  In addition to her experience on wide-ranging antitrust litigations, Shannon works with clients on general antitrust compliance and litigation issues.  In connection with historic restructuring of Puerto Rico’s debts, Shannon advises the Financial Oversight and Management Board for Puerto Rico on a variety of issues related to Puerto Rico Oversight, Management, and Economic Stability Act.

Shannon maintains an active pro bono practice, including assisting non-profit organizations with research into immigration and refugee law and representing individual clients in litigation to improve housing conditions in the Washington D.C. area.

Shannon earned her J.D. from the University of Virginia School of Law, where she captained the school's Philip C. Jessup International Law Moot Court team.  As an alumnae, she is active in advising the current UVA Jessup Team throughout the year-long competition.

Prior to law school, Shannon served as a legislative assistant to state representatives at the Oklahoma State House of Representatives, where she researched and advised on legislation and policy issues, including government transparency, education, and financial accountability.

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The Federal Trade Commission (“FTC”) released a shutdown plan dated September 29, 2025, outlining how it will operate during this lapse in appropriations.

FTC Commissioners are presidential appointees and are excepted from furlough during the shutdown. According to the shutdown plan, furloughs will be issued on a rolling basis for the staff to properly address…

After a bit of hiatus on aggressively challenging vertical mergers, regulators both here in the United States and abroad have resumed initiated actions to challenge vertical mergers. Traditionally a difficult lift for the FTC, vertical vergers involve companies above and below each other in the supply chain. Instead of directly competing, an upstream company acquires…

With antitrust enforcement of the technology sector making headlines daily, and as lawmakers focus on strengthening and potentially reforming antitrust laws as a tool to regulate the tech industry, we anticipate a significant increase in scrutiny by US federal antitrust authorities of vertical mergers,[1] including merger of complements and so–called “diagonal mergers” in the technology sector.  Notwithstanding the current challenges of vertical merger enforcement,[2] on June 30, 2020, the Federal Trade Commission (“FTC”) and the Department of Justice (“DOJ”) issued guidelines (the “Vertical Merger Guidelines”)[3] describing the practices, techniques and enforcement policies the agencies use to evaluate vertical mergers, and on December 22, 2020, the FTC issued additional guidance on Vertical Merger Enforcement (the “Commentary”).[4]  Tech companies and dealmakers should be aware of the type of technology related M&A transactions that may potentially be captured under the Vertical Merger Guidelines and Commentary, along with current enforcement priorities at the agencies. 

The Sherman Act was passed in 1890. The Clayton Act in 1914. And they have hardly changed since. Last month, Senator Amy Klobuchar, the new chair of the Senate Judiciary Committee’s Subcommittee on Antitrust, Competition Policy and Consumer Rights, proposed an overhaul of the antitrust laws: CLERA, the Competition and Antitrust Law Enforcement Reform Act.  If passed, CLERA would constitute the most significant change to antitrust law in a least a generation. In particular, it would also pose substantial new antitrust concerns for technology companies seeking to engage in what have been standard mergers and acquisitions.