Luke Sullivan

Associate Washington, D.C.

Biography

Luke Sullivan
Luke Sullivan is a generalist litigator. His broad-ranging practice covers all aspects of litigation, from trials to appeals to government investigations. He has played a key role in litigating some of the most high stakes and closely watched litigations over the past few years.

Recently, Luke’s practice has primarily focused on the following areas:

Antitrust Litigation: Luke has deep experience litigating antitrust cases. He has served in leading roles on teams litigating against federal and state regulators in litigation challenging mergers, as well as in private antitrust litigation under the Sherman and Clayton Acts. Some of Luke’s recent experiences include:

  • Representing a major food retailer in multiple bench trials against federal and state regulators challenging a proposed merger;
  • Representing a major healthcare company in a federal bench trial challenging a proposed merger;
  • Representing a major technology company in a federal bench trial challenging a proposed merger; and
  • Representing companies in private antitrust litigation under the Sherman and Clayton Acts.

False Claims Act Litigation and Investigations: Luke regularly works on False Claims Act litigation and investigations, including working on teams:

  • Representing a telecommunications company in multiple cases in trial court and on appeal;
  • Representing companies facing Department of Justice investigations into alleged False Claims Act violations.

Other Commercial Litigation and Government Investigations: Luke’s other cases span a wide variety of subject matters. Some of Luke’s recent experience includes serving on teams:

  • Representing companies in the energy, technology, and retail industries facing class actions and mass actions, including MDLs;
  • Representing companies in federal court and before arbitration tribunals in disputes involving breach of contract claims, fraud claims, state tort claims, and alleged consumer protection violations;
  • Representing individuals bringing a constitutional challenge to a D.C. law;
  • Representing a major Class I railroad in a petition for certiorari to the U.S. Supreme Court; and
  • Representing companies facing government and congressional investigations, including companies facing parallel criminal, civil, and regulatory proceedings.*

After law school, Luke served as a law clerk to the Honorable Timothy M. Tymkovich, Chief Judge of the United States Court of Appeals for the Tenth Circuit. He then practiced at another international law firm before joining Weil.

Luke earned his law degree, magna cum laude and Order of the Coif, from Georgetown University Law Center, where he served as the Senior Notes Editor of the Georgetown Law Journal. Prior to law school, Luke served as an analyst at a financial technology company. He received his undergraduate degree, cum laude, from the College of the Holy Cross.

 

* includes matters handled prior to joining Weil

Awards and Recognition, Speaking Engagements, Guides and Resources, Latest Thinking, Firm News & Announcements

Latest Thinking

Firm News & Announcements