Moshe Spinowitz represents clients on a range of tax matters related to corporate transactions, including public and private company mergers and acquisitions, with a particular emphasis on international tax matters, cross-border acquisitions, and post-acquisition integration and restructuring transactions.


Mr. Spinowitz advises clients on a range of tax controversy matters during all phases of IRS audits and appeals.

Mr. Spinowitz’s experience includes advising a multinational pharmaceutical company in connection with the integration and restructuring of its operations following a large cross-border acquisition, advising pharmaceutical and technology companies in connection with the structuring of their intellectual property holdings, and successfully representing several multinational corporations before IRS appeals in connection with intercompany financing transactions.

Select representations include:

  • Annapurna Therapeutics in its combination with Avalanche Biotechnologies for $106 million;
  • Gilead Sciences in its acquisition of Nimbus Apollo for up to $1.2 billion;
  • J.W. Childs in its sale of Esselte Group Holdings AB for $333 million;
  • Konecranes plc in its acquisition of Terex Corporation’s material handling and port solutions unit for $1.28 billion;
  • Merrimack Pharmaceuticals, Inc. in its sale of cancer treatment drugs Onivyde and generic Doxil to Ipsen S.A. for up to $1.025 billion;
  • PMC-Sierra, Inc. in its acquisition by Microsemi Corporation for $2.5 billion;
  • Qlik Technologies in its sale to Thoma Bravo for $3 billion;
  • Spectra Energy Corp. in its combination with Enbridge Inc. for $28 billion;
  • Tobira Therapeutics in its pending sale to Allergan for up to $1.7 billion; and
  • Biogen, Inc. in the spin-off of its hemophilia business as an independent public company, Bioverativ.

Prior to joining Skadden, Mr. Spinowitz served as a law clerk to Judge Michael Boudin on the United States Court of Appeals for the First Circuit, and Justice Antonin Scalia on the United States Supreme Court.



  • J.D., Harvard Law School, 2006 (magna cum laude; Articles Editor, Harvard Law Review)
  • B.A., Harvard College, 2002 (summa cum laude)


  • Massachusetts
  • District of Columbia


  • Law Clerk to Judge Michael Boudin, U.S. Court of Appeals for the First Circuit
  • Law Clerk to Associate Justice Antonin Scalia, U.S. Supreme Court