Katharine Moir, Global Chair of the firm’s Tax Department, advises leading private equity firms and companies on tax issues arising in their largest and most complex transactions.

Katharine provides comprehensive tax counsel in connection with a range of domestic and international transactions and is widely recognized as a leading private equity tax lawyer. Her work includes advising on tax issues related to complicated US and international transactions, including:

  • Mergers and acquisitions
  • Joint ventures
  • Recapitalizations
  • Structured investments
  • Formation of private equity funds
  • Securities offerings

Katharine regularly represents leading private equity firms, as well as top technology and other companies. Her experience spans a number of landmark and high-value deals — including advising Dell in the largest technology deal to date.

Prior to joining Latham, Katharine served as a tax partner and head of the West Coast tax practice at a leading international law firm.

Katharine’s experience includes advising:

  • KKR in its acquisition of Marmic Fire & Safety
  • CPPIB and IKAV Capital Partners in the US$2.1 billion sale of Aera Energy to California Resources Corporation
  • TPG Capital in its:
    • Establishment of a new talent representation business and simultaneous investment in Untitled Entertainment
    • Majority investment in Confluent Medical Technologies 
  • Apollo Hybrid Value Fund in its minority interest in GI Alliance Holdings
  • Cerevel Therapeutics in its US$8.7 billion sale to AbbVie Inc.
  • Blackstone Infrastructure Partners in its US$2.15 billion acquisition of a minority equity interest in NIPSCO 
  • Silverlake in its US$12.5 billion take-private acquisition of Qualtrics
  • Madison Dearborn Partners in its US$1.8 billion take-private acquisition of MoneyGram
  • Mediawan in its acquisition of Plan B Entertainment 
  • KKR in its US$1.1 billion acquisition of Kobalt Capital’s KMR Music Royalties II portfolio
  • Headspace in its acquisition of Ginger.io, developer of a platform for on-demand mental healthcare
  • Dell in its US$67 billion acquisition of EMC, the largest technology deal to date*

*Matter handled prior to joining Latham

Bar Qualification

  • California

Education

  • JD, University of Chicago Law School, 1996
  • AB, Princeton University, 1992

Practices

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October 26, 2023 Recognition

Tax MVP: Latham’s Katharine Moir

Global Chair of the Transactional Tax Practice honored for advising industry-leading clients on the tax aspects of recent M&A transactions, often involving multiple stakeholders and complex tax-related carve-out issues.