Yuni Yan Sobel

Drawing on experience advising multinational corporations, private equity sponsors, venture capital funds, and hedge funds on hundreds of transactions across industries, Yuni brings a strategic, solutions-oriented approach to navigating complex structures and driving deal certainty. She has developed robust HSR compliance systems that help clients manage filings efficiently and adapt quickly as the rules evolve—she was among the first practitioners to file under the expanded HSR form in February 2025, and again under the reinstated prior form in March 2026.

She also represents clients in merger reviews before the FTC, DOJ, and non-U.S. authorities and advises on information exchange, gun-jumping, and general antitrust compliance.

Yuni sits on the Executive Committee of the New York State Bar Association’s Antitrust Section and is a member of the board of the Dartmouth Asian Pacific American Alumni Association.

During law school, Yuni was elected to the Order of the Coif and received both the Bernard A. Chertcoff Prize in taxation and the Frank H. Gelman Prize in real estate. She was also a member of the University of Pennsylvania Law Review and an articles editor of the East Asia Law Review.

Yuni’s experience includes representing: *

• Altor Equity Partners in its acquisition of CCM Hockey, a Canada-based hockey equipment brand, from Birch Hill Equity Partners
• ANV Group Holdings, a global insurance intermediary platform, in its acquisition of Open Lending through an all-cash tender offer
• Carnival Corporation & plc in the $43 billion unification of its dual-listed company structure
• Cenovus Energy in its $5.7 billion (C$7.9 billion) acquisition of MEG Energy
• Equinox Gold, a Canada-based mining company, in its $1.8 billion acquisition of Calibre Mining, another Canada-based mining company
• General Atlantic in various acquisitions and investments including KAYALI, Liftoff, Gravie, Flo Health, Legent Health, OSEA Malibu, Kyriba, and Actis
• Gemspring Capital in its financial backing of FORM’s merger with Trax
• HEICO Corporation, a technology-driven aerospace company, in its $2.05 billion acquisition of Wencor Group, a Georgia-based commercial and military aircraft aftermarket company
• IonQ, a commercial quantum computing and networking company, in its acquisition of SkyWater Technology, Elisity, Oxford Ionics, Skyloom Global, and Capella Space Corporation
• KPS Capital Partners in its various acquisitions and divestitures in Life Fitness, Howden, Tower International, Metra, Primary Products, Oldcastle Building Products, Catalyst Acoustics Group, INEOS, Hussey Copper, Innomotics, Eviosys, Ketjen, Jennmar, The Wells Companies, Crane Composites, IKG, and C&D Technologies
• Oak Hill Capital Partners in its various acquisitions and divestitures in Mercer Advisors, Telesoft, Trinity Consultants, Technimark, and Safe Fleet
• Brighton Park Capital in its investments in TickPick, Storyblok, PortSwigger, LucidLink, and Coralogix
• Kohlberg & Co. in its acquisitions of two packaging companies, Nelipak and Bemis, in an investigation before the UK Competition and Markets Authority (CMA)
• Maiden Holdings, a Bermuda-based reinsurance company, in its $167.5 million combination with Kestrel Group
• QXO in its $17 billion acquisition of TopBuild, its $2.25 billion acquisition of Kodiak Building Partners, and its successful $11 billion unsolicited bid to acquire Beacon Roofing Supply
• Teladoc in its $18.5 billion acquisition of Livongo
• Rite Aid in connection with its chapter 11 bankruptcy proceedings and sale of certain assets to CVS. The transaction included CVS’s purchase of the prescription files of 625 Rite Aid pharmacies located in 15 states within CVS’s service areas, as well as CVS’s acquisition and continued operation of 64 Rite Aid stores in Idaho, Oregon, and Washington
• Spirit Airlines in its proposed sale to Frontier Airlines and subsequently to JetBlue Airways
• Dollar Tree in its $9 billion acquisition of Family Dollar, a combination of two of the largest dollar store operators, in an investigation by the FTC, and in successfully defending against a hostile bid from Dollar General
• Steris in its successful $1.9 billion acquisition of Synergy Health, a transaction that combined two of the largest sterilization providers, in an investigation by the FTC
• C.R. Bard in its $24 billion sale to Becton, Dickinson, a combination of two top medical device providers, in an investigation by the FTC
• Danone in its $12 billion acquisition of WhiteWave, a transaction that combined two of the top purchasers of organic milk, in an investigation by the DOJ
• Publicis in its proposed merger with Omnicom, in an investigation by the Chinese Ministry of Commerce (MOFCOM)
• Dell Inc. in its $67 billion acquisition of EMC
• XO Group in its sale to WeddingWire, a transaction that combined the two largest online wedding marketplace websites, in an investigation by the DOJ

* Includes matters handled prior to joining Weil