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Ellen L. Mossman focuses her practice on white collar, securities and other complex commercial litigation. Ms. Mossman has defended publicly traded companies and their officers and directors in securities class action, derivative, and merger litigation. She also has experience representing officers, directors, and other individuals in government and internal investigations, including, among others, the Special Committee of the Board of Directors of a Fortune 200 company in connection with potential shareholder derivative claims and former officers of publicly traded companies in connection with SEC investigations.

Ms. Mossman maintains an active commercial and appellate litigation practice. She has represented an avionics company in a breach of contract dispute with a large international airline, a retailer in products liability case, and a law firm in a false advertising and unfair competition lawsuit, all in federal district court. She has also defended individuals and companies against breach of fiduciary duty and breach of contract claims in various state courts. In her appellate practice, she has represented organizations, companies and individuals before the Pennsylvania Supreme, Superior and Commonwealth Courts and the New York Supreme Court’s Appellate Division.

In her pro bono practice, Ms. Mossman successfully represented a prisoner plaintiff in a First Amendment retaliation case before the U.S. Court of Appeals for the Third Circuit, leading to a precedential decision reversing the district court’s grant of summary judgment against the plaintiff. She has argued two civil rights cases before the Third Circuit and represented clients in other civil rights and habeas corpus cases before that Court and the U.S. District Court for the Eastern District of Pennsylvania. Ms. Mossman has also assisted a client escaping domestic violence in gaining the ability to work legally in the United States and obtaining lawful permanent residency in the United States.

Prior to joining Dechert, Ms. Mossman clerked for the Honorable D. Michael Fisher on the Third Circuit and the Honorable J. Curtis Joyner on the Eastern District of Pennsylvania.

Education

University of Pennsylvania, B.A., 2007, cum laude, with Distinction in History
University of Pennsylvania Law School, J.D., 2012, magna cum laude, Order of the Coif, Comments Editor, University of Pennsylvania Law Review

Court Admissions

United States Court of Appeals for the Third Circuit
United States District Court for the Eastern District of Pennsylvania

Bar Admissions/Qualifications

New York
Pennsylvania

Clerkships

Honorable D. Michael Fisher, United States Court of Appeals for the Third Circuit
Honorable J. Curtis Joyner, United States District Court for the Eastern District of Pennsylvania