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Matthew Eley represents clients in a variety of antitrust matters. His practice includes complex civil antitrust litigation and assisting clients with government review of mergers and acquisitions.

Before joining Arnold & Porter, Matthew worked closely with the U.S. Department of Justice Criminal Division's Money Laundering and Asset Recovery Section.


  • Pfizer in its $43 billion acquisition of Seagen Inc., a world-leader in antibody-drug conjugates (ADCs).



  • J.D., Boston University School of Law, 2019, Edward F. Hennessey Distinguished Scholar
  • B.A., Chinese, Brigham Young University, 2013


  • District of Columbia
  • New York
  • California
  • U.S. Court of Appeals for the Tenth Circuit