Michael Gilligan is an accomplished corporate lawyer and trusted business advisor who is exceptionally skilled at helping private and public companies navigate through the complex transactions they face throughout their business lifecycle. Mr. Gilligan has built a substantial practice over the past 24 years, with national and multinational company clients turning to him for strategic legal counsel, including in connection with domestic and cross-border mergers, acquisitions, dispositions, private placements and restructurings.

As part of his corporate, private equity, and mergers and acquisitions practice, Mr. Gilligan represents clients in a wide variety of transactions and across industries. In particular, he has exceptional experience handling buy-side and sell-side M&A transactions, joint ventures, proxy contests and general corporate governance matters.

Drawing upon his deep knowledge and experience, Mr. Gilligan advises large corporations, financial sponsors and financial advisors. He represents these clients in a range of matters involving corporate finance, corporate governance and disclosure, mergers and acquisitions, and other corporate and financial transactions.

Before joining WilmerHale, Mr. Gilligan was a partner in the New York City office of another international law firm, where he focused on public and private merger and acquisition transactions.


    • AdoreMe, Inc., a direct-to-consumer lingerie and apparel brand, in its sale to Victoria’s Secret & Co. for an upfront $400 million cash payment and further cash consideration.
    • Cybrexa Therapeutics, a biotechnology company focused on developing the next generation of cancer therapeutics, in its exclusive collaboration agreement with Exelixis.
    • Dedrone, a startup offering security solutions addressing airspace vulnerabilities exploited by the advances in consumer and commercial drone technology, in its acquisition of Aerial Armor, another leading provider of drone detection security services.
    • Priority Technology Holdings, a leading payments technology company in its $407 million acquisition of Finxera Holdings, a fintech company that launched and operated one of the first Banking as a Service platforms.
    • Robinhood Markets, a U.S. consumer investing and trading service, in its $140 million acquisition of Say Technologies, a venture-backed investor communication platform.
    • Spectris PLC, a supplier providing high-tech instruments, test equipment and software for many of the world's most technically demanding industrial applications, in the sale of its NDC Technologies unit to global precision technology company Nordson Corporation.
    • Teamport Inc. (d/b/a Around), an AI-based camera framing designed for video calls, in its acquisition by Realtimeboard, Inc. (d/b/a Miro) for approximately $102.3 million in aggregate merger consideration.

    Before joining WilmerHale, Mr. Gilligan also advised on the following matters:

    • Represented one of the largest commercial property and casualty insurance organizations in the US, in the disposition of its payout annuities business to a leading provider of in force and reinsurance solutions in the North American life insurance industry.
    • Represented a leading private equity investor in connection with its sale of an innovative fintech company that provides cross-border remittance services, to one of the top credit card networks.
    • Represented the financial services division of an S&P 100 multinational in the $9 billion disposition of its healthcare financial services business.
    • Represented a hedge fund operated by a global private equity investor in connection with the sales of an industry leader in the sustainable manufacturing of automotive parts, and a manufacturer of high-quality, custom single and barrier layer polyethylene films.


  • Named a leading lawyer for Corporate/M&A by Chambers USA with sources saying he “is a ‘very smart guy’ who is well thought-of by peers for his broad-based M&A practice, including acting for private equity clients and financial advisors”
  • Recommended by The Legal 500 United States for M&A and corporate law

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  • Education

    • JD, Fordham University School of Law, 1997

    • BS, Biomedical Engineering, Johns Hopkins University, 1992

  • Admissions

    • New York



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