Matthew O'Brien is a corporate partner in the Firm's Chicago office. Matthew represents private equity sponsors and public and private company clients in mergers and acquisitions, leveraged buyouts, going-private transactions, joint ventures, divestitures, private financings, recapitalizations and restructurings, and in related corporate governance, executive compensation and general corporate matters. Matthew joined Kirkland in 2006, has been a partner since 2012 and was selected by The Deal as a “Rising Star” M&A attorney in 2019.

Matthew has handled such matters on behalf of, among others, private equity sponsors Apax Partners, Bain Capital, BC Partners, Beecken Petty O'Keefe & Company, Chicago Growth Partners, CHS Capital, CPPIB, Golden Gate Capital, GTCR, Hellman & Friedman, Lee Equity Partners, Madison Dearborn Partners, New Mountain Capital, Partners Group, Platinum Equity, Sycamore Partners, The Riverside Company, Vista Equity Partners and Willis Stein & Partners, as well as many of their portfolio companies, in addition to handling acquisition, divestiture and investment transactions for CME Group, ConvergEx, Duff & Phelps and The Royal Bank of Scotland.


Thought Leadership


Tilling the Cram Down Landscape: Using Securitization Data to Expose the Fundamental Fallacies of Till, 59 Vand. L. Rev. 257 (2006)


Recognized as a "Rising Star" in The Dealmaker Quarterly, 2019


Admissions & Qualifications

  • 2006Illinois


  • Vanderbilt Law SchoolJ.D.2006

    Order of the Coif

    Senior Managing Editor, Vanderbilt Law Review

    Myron Penn Laughlin Award

    Vanderbilt University Law School and Owen School of Management's Law and Business Certificate

  • The Ohio State UniversityB.S.B.A., Finance2003