Antitrust
Notable Representations, Key Contacts
Weil’s global Antitrust team provides clients with the international reach and extensive expertise required to handle complex and rapidly shifting antitrust and foreign investment rules around the world. Our team has a proven track record of achieving successful and innovative outcomes for clients across the full range of transactional and behavioral antitrust and foreign investment matters.
“An exceptional group of attorneys with deep experience representing clients before government agencies.”
Antitrust M&A:
With our deep experience in handling complex cross-border merger review processes and our position at the forefront of shaping antitrust policy, Weil has been trusted to provide effective global strategic counseling, agency representation, and litigation defense for many of the largest, highest-profile transactions in recent years.
Antitrust Litigation:
Weil has a strong reputation for successfully defending clients in their most high-stakes civil and criminal antitrust litigations, achieving the best outcomes at trial and on appeal in respect of the full range of cutting-edge antitrust issues, with particular success in class action litigations.
Cartels & Investigations:
With our deep expertise and global reach, Weil is regularly called upon by clients across the globe to guide them through all phases of criminal and civil cartel investigations. We have consistently obtained favorable results, earning the practice recognition among the top cartel defense firms in the world.
Global Recognition
50
Speaking Engagements, Latest Thinking, Firm News & Announcements
Speaking Engagements
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Antitrust Enforcement Under the Trump Administration – The First 100 Days: Reading Between the Headlines & What Lies Ahead
Speaker(s):
Meagan Bellshaw,
Jasmine Rosner and
Mark Seidman
May 8, 2025 — Weil Antitrust partners Meagan Bellshaw, Jasmine Rosner, and Mark Seidman hosted a webcast discussing the antitrust enforcement landscape over the first 100 days of President Trump's second administration and predictions on what to expect in the future.
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The Revival of the Robinson-Patman Act: Understanding the New Landscape
Speaker(s):
Yehudah L. Buchweitz
May 1, 2025 — New York, NY — Complex Commercial Litigation partner Yehudah L. Buchweitz led a discussion titled “The Revival of the Robinson-Patman Act: Understanding the New Landscape” at Practising Law Institute’s 2025 Developments in Antitrust Law & Regulation conference. Yehudah discussed the history of the Robinson-Patman Act, key considerations in bringing and defending against a Robinson-Patman Act claim, and understanding new enforcement actions by the Federal Trade Commission.
Latest Thinking
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Protected: WorthWeil By The Numbers: Closing Your Complex Global Deal 2025
Blog Post — WorthWeil Antitrust Blog
— By
Jenine Hulsmann,
Chris Chapman,
Mehjabin Ahmed and
Jayati Handa
— May 06, 2025
There is no excerpt because this is a protected post. ...
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Can’t take my AIs off you: The CMA’s review of AI partnerships
Blog Post — WorthWeil Antitrust Blog
— By
Jenine Hulsmann,
Chris Chapman and
Lucy Chambers
— April 15, 2025
On 15 April 2025, the UK Competition and Markets Authority (“CMA”) published its long-awaited decision on the Microsoft / OpenAI partnership, marking the end of a cycle of five merger investigations launched into partnerships between AI developers and big tech companies since December 2023. The Microsoft / OpenAI case potentially marks a turning point in ...
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Don’t fake it ‘til you make it: The CMA’s enhanced consumer enforcement powers
Blog Post — WorthWeil Antitrust Blog
— By
Nafees Saeed,
Lucy Chambers and
Jayati Handa
— April 07, 2025
On 6 April 2025, significant new direct consumer protection powers for the UK’s Competition and Markets Authority (CMA) came into force. With the CMA having set out its early enforcement priorities and approach, in this post we explore what the new regime means for consumer-facing businesses in the UK and strategies to ensure compliance. New ...
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Catch me if you can: what next for EU merger policy towards below threshold transactions?
Blog Post — WorthWeil Antitrust Blog
— By
Niklas Maydell,
Annagiulia Zanazzo,
Chris Chapman and
Clémence Coppin
— March 14, 2025
On 10 January 2025, Nvidia brought an action against the European Commission (“EC”)’s decision to review Nvidia’s acquisition of Run:ai, following a referral request from the Italian competition authority under Article 22 of the EU Merger Regulation (“EUMR”). The deal failed to meet both the EUMR and the Italian merger thresholds, and was ‘called in’ ...
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Labor Harms Remain a Focus for Trump’s Antitrust Enforcers
Blog Post — WorthWeil Antitrust Blog
— By
Jasmine Rosner,
Joe Ehrenkrantz,
Katie Rider and
Mia Smutny
— March 06, 2025
On February 26, 2025, Federal Trade Commission (FTC) Chairman Andrew Ferguson announced a Directive Regarding Labor Markets Task Force (Directive) to create a task force to investigate and prosecute activity that harms workers in violation of the antitrust or consumer protection laws. As one of the first actions by the Trump FTC, Chairman Ferguson’s Directive ...
Firm News & Announcements
- Weil Advises KLAR Partners on the Acquisition of Ventro Group Deal Brief — May 12, 2025
- Weil Advises WhiteHawk in Acquisition of PHX Minerals Deal Brief — May 08, 2025
- Weil Advises TPG in Acquisition of Peppertree Capital Management Deal Brief — May 07, 2025
- Weil Advises Sunoco LP in its $9.1B Acquisition of Parkland Corporation Deal Brief — May 05, 2025
- Weil Advises Brookfield and Portfolio Company Schoeller Allibert on its Merger with IPL Deal Brief — May 01, 2025
- Weil Advises PSG Equity on its Strategic Growth Investment in Glasswall Deal Brief — April 24, 2025