
Corporate/M&A
USA Guide 2026 : Massachusetts
Rankings

Ranked Individual
Ranked Individual
About
Provided by WilmerHale
Market leaders in life sciences, technology, financial services/FinTech, industrials, and many other sectors turn to WilmerHale for legal advice and business advantage in “bet the company” M&A transactions. In 2021, we advised clients on more than 90 M&A transactions with an aggregate value of approximately $100 billion, drawing on the firm’s preeminence in adjacent practice areas including intellectual property and licensing, corporate governance, securities, antitrust and tax. Since 2011, we have participated in more than 850 mergers and acquisitions with a total value of more than $450 billion, ranging from transactions involving VC- and PE-backed portfolio companies to acquisitions and sales of multibillion dollar global public companies. We also routinely advise clients on hostile transactions and activist investors, represent investment banks serving as financial advisors in M&A transactions, and represent participants in SPAC (special purpose acquisition company) business combinations.
Chambers Review
Provided by Chambers
Work Highlights
Provided by Chambers
WilmerHale represented Thermo Fisher Scientific in its acquisition of the Purification & Filtration business of Solventum for $4 billion.
Notable Practitioners
Provided by Chambers
Band 2 
Band 2 
Hal J Leibowitz
Clients call upon Hal Leibowitz for his wide-ranging expertise in corporate law, which includes strengths in M&A, securities issues and broader governance matters. He is particularly well-versed in advising businesses in the technology and life sciences sectors. He's very knowledgeable and absolutely trusted by the board.
Corporate/M&A respondentUSA
Ranked Individuals at WilmerHale (1)
Members
Provided by WilmerHale

Hal J Leibowitz
View profile of Hal J Leibowitz
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