Caitlin O’Brien advises private equity sponsors and public and private companies on mergers and acquisitions and other complex business transactions, with a focus on private equity sponsors and their portfolio companies. Her practice also encompasses a range of corporate governance matters.

Ms. O’Brien regularly advises clients on complex corporate transactions throughout every stage of the investment life cycle, including:

  • Mergers and acquisitions
  • Leveraged buyouts and take-private transactions
  • Carve-outs
  • Joint ventures
  • Co-investments and minority investments
  • Recapitalization and restructuring transactions

Ms. O’Brien’s representative matters include:

Private Equity

  • Leonard Green & Partners in its acquisitions of, or investments in, Milan Laser, Eyemart, Epiphany Dermatology, Community Psychiatry, Mariner Wealth Advisors, Catalent, Pye-Barker and Signet
  • Madison Dearborn Partners in its acquisition of MoneyGram International, Inc.
  • Shamrock Capital in its investment in SaveLive
  • Marlin Equity in its acquisition of Lifesize
  • Weld North in its disposition of Learning House 
  • Rizvi Traverse Management, LLC in its acquisition of RealD Inc.

Strategic Transactions

  • MGM in connection with various M&A and general corporate matters, including its acquisition of EPIX
  • Teladoc Health in its acquisition of Best Doctors and InTouch Technologies
  • Nestlé Health Science in its acquisitions of Vital Proteins
  • Eventbrite in its financing with Francisco Partners 
  • Gibson Energy in connection with it disposition of OMNI 

Bar Qualification

  • California
  • Massachusetts
  • New York


  • JD, Yale Law School, 2011
  • BA, Yale University, 2008
    cum laude