/ / Mark C. Rifkin

Mark C. Rifkin is Managing Partner of Wolf Haldenstein Adler Freeman & Herz LLP. He is a highly experienced trial and appellate litigator in federal and state courts across the country in a broad range of cases, including complex commercial, securities, antitrust, and copyright disputes.  Among his many accomplishments, Mr. Rifkin invalidated the worldwide copyrights to “Happy Birthday,” the world’s most famous song, and to “We Shall Overcome,” which the Library of Congress has called the most powerful song in the United States history. Mr. Rifkin has been recognized year after year as a Super Lawyer and was named a “Titan of the Plaintiff’s Bar” by Law360.  His clients include institutional investors such as public and labor pension funds, labor health and welfare benefit funds, and private institutional investors who suffered losses from securities law violations. He has helped the Firm’s litigation team recover more than $7 billion for investors.

Mr. Rifkin is a senior member of the Firm’s Investor Protection, Antitrust, Business Practice, and Consumer Protection litigation groups with an emphasis on Securities and Derivative Litigation, Antitrust Litigation, Copyright, IP & Public Domain Protection, and Commercial Litigation. He joined the Firm in 2003. Before joining Wolf Haldenstein, Mr. Rifkin practiced complex commercial litigation in Philadelphia for almost 20 years.


  • Lead counsel in In re Apple iPhone Antitrust Litigation, challenging Apple’s App Store monopoly over iPhone apps and in-app purchases, winning a major Supreme Court victory over direct purchaser standing in Apple v. Pepper. 
  • Lead counsel in a class action challenging the disputed copyright related to the world’s most famous song, “Happy Birthday.” Good Morning to You Productions Corp. v. Warner/Chappell Music, Inc. Mr. Rifkin and Wolf Haldenstein achieved worldwide acclaim from this groundbreaking litigation and its successful outcome.
  • Lead counsel on another noteworthy historic class action that challenges the copyright to “We Shall Overcome,” a song that the Library of Congress has called the most powerful song in the United States history. We Shall Overcome Foundation v. The Richmond Organization, Inc.
  • Achieved significant Second Circuit victory for catalog artists in a class action royalty dispute in Chambers v. Time Warner, Inc.
  • Served as lead counsel, co-lead counsel, and/or trial counsel in many class and derivative actions in securities, intellectual property, antitrust, consumer and mass tort litigation throughout the country.
  • Argued dozens of appeals on behalf of appellants and appellees in several federal appellate courts and in the highest appellate courts in New York, Pennsylvania, New Jersey, and Delaware.
  • Has litigated cases to trial and received favorable verdicts for his clients.
  • Represented institutional investors, including many public and Taft Hartley pension funds and private institutions, in representative and individual securities and shareholder litigation recovering hundreds of millions of dollars for victims of corporate fraud.


Mr. Rifkin is rated AV, the highest rating given by Martindale-Hubbell®, the country’s foremost legal directory.

Mr. Rifkin was profiled by Law360 as a “Titan of the Plaintiffs Bar” and was designated as a “Trailblazer” by the National Law Journal.

Mr. Rifkin is a member of the American Bar Association and the New York State Bar Association. He lectures frequently to business and professional organizations on a variety of business, intellectual property, and shareholder matters. Mr. Rifkin appears regularly in print and broadcast media on law-related topics in securities, corporate, intellectual property, antitrust, regulatory, and enforcement matters. Mr. Rifkin is also a guest lecturer to graduate and undergraduate economics and finance students on corporate governance and financial disclosure topics. He also serves as a moot court judge for the A.B.A., Yale Law School, and New York University Law School.