In light of the rapidly changing coronavirus (COVID-19) situation, Troutman Sanders and Pepper Hamilton have postponed the effective date of their previously announced merger until July 1, 2020. The new firm – Troutman Pepper – will feature 1,100+ attorneys across 23 U.S. offices. Read more.

Robin P. Sumner

Robin P. Sumner


Philadelphia, PA
Phone: 215.981.4652    Fax: 215.981.4750

"A very strong and really analytical lawyer." – Chambers USA 2019

Robin P. Sumner is a partner with Pepper Hamilton LLP and a member of the Health Sciences Department and the Trial and Dispute Resolution Practice Group.

Ms. Sumner focuses her practice on antitrust/competition law, the False Claims Act, securities law and complex civil litigation. She has significant experience litigating a variety of cases in the biopharmaceutical and health care industries, including class actions and multidistrict litigation. She also regularly counsels clients on antitrust and fraud and abuse issues, and she represents them in those matters before government agencies.

Before joining Pepper in July 2007, Ms. Sumner was a partner with Dechert LLP.


  • J.D., University of California, Berkeley, Boalt Hall School of Law, 1998, production editor, Berkeley Women’s Law Journal; Order of the Coif
  • A.B., magna cum laude, Brown University, 1992

Bar Admissions

  • Pennsylvania

Court Admissions

  • U.S. Court of Appeals, Third Circuit
  • U.S. Court of Appeals, Sixth Circuit
  • U.S. District Court, Eastern District of Pennsylvania

Practice Areas

Data protection laws have changed, so we have revised our Privacy Policy.