Zachary M. Johns represents US and international clients in a variety of high-stakes complex commercial matters, with a focus on civil and criminal antitrust and class action litigation. Zak also counsels businesses on antitrust and litigation risks and advises on antitrust training and compliance programs. Zak represents companies across a broad range of industries, including pharmaceutical, healthcare, financial services, commodity merchandising, technology, and consumer products. Zak is also a member of the firm’s litigation Mass Arbitration Working Group.
Zak has experience handling complex class action, multi-plaintiff, and single-plaintiff litigation from inception through trial and appeal. As part of his litigation practice, Zak co-chaired an 11-day trial in which he delivered the opening statement and conducted multiday examinations of two key witnesses. In addition, Zak has experience arguing pretrial and midtrial motions in federal court; briefing numerous pretrial motions, including motions to dismiss, for summary judgment, and opposition to class certification in complex cases; and taking and defending fact and expert depositions. Additionally, Zak has worked on class actions and single-plaintiff cases involving allegations of exclusive dealing, tying, monopolization, price-fixing, discrimination, and violations of state antitrust, consumer protection, and business tort laws.
Zak maintains an active pro bono practice. He volunteers for HIAS Pennsylvania, representing asylum applicants and individuals seeking citizenship. For example, Zak represented an asylum applicant from Eritrea who was persecuted on the basis of religion and secured a grant of asylum for the applicant following a trial. Zak also serves on the board of trustees of the nonprofit PYO Music Institute for gifted, young classical musicians. While in law school, Zak worked as a summer intern for Judge Gene E.K. Pratter of the US District Court for the Eastern District of Pennsylvania and participated in a legal clinic representing low-income individuals in family law matters.
Zak’s current litigation matters include:
Zak’s representative litigation successes include:
Zak’s representative counseling includes:
Results may vary depending on your particular facts and legal circumstances.
Listed, Global Competition Review, 40 Under 40 (2024)
Recommended, Key Lawyer, Antitrust – Civil Litigation/Class Actions: Defense, The Legal 500 US (2024)
Listed, Philadelphia Business Journal, 40 Under 40 (2024)
Listed, The Best Lawyers in America, Ones to Watch, Commercial Litigation, Philadelphia (2023–2025)
Ranked, Antitrust, Pennsylvania, Chambers USA (2024)
Ranked, Chambers USA, Up and Coming, Antitrust, Pennsylvania (2022, 2023)
Listed, The Legal Intelligencer, Lawyers on the Fast Track (2019)
Member, Law360, Practice Group of the Year, Competition (2017–2021)
Listed, Pennsylvania Super Lawyers, Rising Star, Antitrust Litigation (2015–2024)
Member, American Bar Association
Member, Pennsylvania Bar Association
Member, Philadelphia Bar Association
Member, Order of the Coif
Executive Editor, University of Illinois Law Review
Recipient, Rickert Award for Academic Excellence (2012)
Member, Best Lawyers – Best Law Firms, Practice Group of the Year, Antitrust Law (2017)
No aspect of this advertisement has been approved by the Supreme Court of New Jersey. A description of the selection methodology for the above awards can be found here.