Leslie John > Ballard Spahr LLP > Philadelphia, United States > Lawyer Profile

Ballard Spahr LLP
1735 MARKET STREET, 51ST FLOOR
PHILADELPHIA, PA 19103-7599
PENNSYLVANIA
United States
Leslie John photo

Work Department

Litigation

Position

Partner, Practice Leader of Ballard Spahr’s Antitrust and Competition Group, and Co-Leader of its False Advertising Litigation Team

Career

Leslie E. John is the Practice Leader of Ballard Spahr’s Antitrust and Competition Group and Co-Leader of its False Advertising Litigation Team. Leslie concentrates on antitrust and complex litigation, and she has represented clients—many of them in the pharmaceutical and health care industries—in federal and state courts and before the U.S. Department of Justice and Federal Trade Commission. She also advises on antitrust issues in mergers and acquisitions, including securing pre-merger clearance under the Hart-Scott-Rodino Act, and counsels clients on antitrust compliance and risk management.

Admissions

California

Pennsylvania

U.S. Supreme Court

Memberships

Philadelphia Bar Foundation, President, 2019-present; Vice President, 2007-2018; Board of Trustees, 2010-present; Secretary, 2013-2016; Co-Chair, 50th Anniversary Gala

Philadelphia Diversity Law Group, Co-President, 2019-present; Vice President, 2016-2018; Board of Directors, 2011-present

Forum of Executive Women, 2017-present

WOMEN’S WAY (nation’s oldest women’s funding federation), General Counsel, 2007-present

Ballard Spahr’s Diversity, Equity, and Inclusion Council, Member

Education

University of California, Berkeley, School of Law (J.D. 1987)
Associate Editor, California Law Review
Member, Moot Court Board

University of California, Berkeley (A.B., summa cum laude, 1984)

Lawyer Rankings

United States > Antitrust > Civil litigation/class actions: defense

Monopolization and conspiracy cases form the core of Ballard Spahr LLP‘s antitrust group, which represents clients on both side of the aisle. Leslie John, who has a particular focus on the pharmaceutical and health care industries, leads the practice from Philadelphia, where Jason Leckerman and Stephen Kastenberg are further key members of the team. In New York, James Mitchell is specialized in the securities industry, while Philadelphia-based Edward Rogers handles cases relating to monopolization and conspiracy claims. Denise Plunkett  left the firm in January 2021.