Darren is a partner in the Antitrust Group in Washington, DC. Darren has two decades of experience handling the largest, most complex merger and non-merger antitrust investigations, with a focus on the technology, energy, and pharmaceutical sectors.
has played key roles in many of the most prominent antitrust cases involving
the U.S. agencies, including two trials against the U.S. government (FTC v. Arch Coal (D.D.C) and FTC v. CCC (D.D.C.)) and the settlement
of a leading gun jumping case (US v. Gemstar
(D.D.C.)). He has helped obtain clearance for approximately 100 mergers and
also has extensive experience on competition matters outside the U.S., having
counseled clients on merger and non-merger antitrust matters in Europe, Canada,
Japan, China, South Korea, Taiwan, Russia, and Australia.
In 2017, Global Competition Review
recognized Darren as one of the leading antitrust lawyers under the age of 45. Other
credentialing groups recognizing Darren as a leading antitrust lawyer include
The Legal 500 and Super Lawyers. He has been part of the
leadership of the American Bar Association’s Section of Antitrust Law for over
a decade, where he currently serves on the section’s governing Council.
regularly speaks and writes on antitrust issues relevant to technology, energy,
and life science companies, as well as on competition agency practice and
procedure. He recently served as the editorial chair of Antitrust Law Developments, the leading antitrust treatise for
practitioners. He previously served as the editorial chair of the ABA’s Antitrust Source and as a member of the Law360 Competition editorial advisory
board. He has taught an advanced antitrust seminar as an adjunct professor at
Antonin Scalia Law School at George Mason University.
2009-2013, Darren served as an attorney advisor to Commissioners Joshua D.
Wright and J. Thomas Rosch at the FTC. In that role, he advised the
commissioners on staff enforcement recommendations, litigation strategy, and
policy matters, including the 2010 Merger Guidelines. This experience allows
Darren to provide valuable insights to clients regarding competition
enforcement and policy issues.
Darren is co-head of the firm’s antitrust practice group.