Pomerantz LLP

Marc I. Gross

Senior Counsel

New York

Securities Litigation

New York University

State of New York; U.S. District Courts for the Southern and Eastern Districts of New York, Western District of Missouri, District of Arizona; U.S. Courts of Appeals for the First, Second, Third and Eighth Circuits; U.S. Supreme Court.


  • Biography
  • Publications
  • Cases
  • Awards
  • News

Mr. Gross has been with Pomerantz LLP over four decades, serving as its Managing Partner from 2009- 2016. During that time frame, Mr. Gross led securities lawsuits against SAC Capital (Steven Cohen- insider trading); Chesapeake Energy (Aubrey McClendon- insider bail out); Citibank (analyst Jack Grubman- AT&T research report upgrade to facilitate underwriting role); Charter Communications (Paul Allen-accounting fraud); and numerous others. He also litigated the market efficiency issues in the firm’s landmark $3 billion recovery in Petrobras. Mr. Gross was honored as a 2018 Super Lawyer® in the New York Metro area. 

Mr. Gross is the President-Elect of the Institute of Law and Economic Policy (“ILEP”), which has organized symposiums each year where leading academics have presented papers on securities law and consumer protection issues. These papers have been cited in over 60 cases, including several by the Supreme Court. http://www.ilep.info.

Mr. Gross has addressed numerous forums in the United States on shareholder-related issues, including ILEP; Loyola University Chicago School of Law’s Institute for Investor Protection Conference; the National Conference on Public Employee Retirement Systems’ (“NCPERS”) Legislative Conferences; PLI conferences on Current Trends in Securities Law; and a panel entitled “Enhancing Consistency and Predictability in Applying Fraud-on-the-Market Theory” sponsored by the Duke Law School Center for Judicial Studies.

Mr. Gross is also valued by foreign investors for his expertise, having addressed the Tel Aviv Institutional Investors Forum, the National Association of Pension Funds Conference in Edinburgh, and law students at Bar Ilan University in Tel Aviv.

Among other articles, Mr. Gross authored Back to Basic(s): Common Sense Trumps Econometrics, New York Law Jrl. (Jan. 8, 2018) (with Jeremy Lieberman); Class Certification in a Post-Halliburton II World,46 Loyola-Chicago Law Jrl. 485 (2015); and Loser-Pays - or Whose “Fault” Is It Anyway: A Response to Hensler-Rowe’s “Beyond ‘It Just Ain’t Worth It,” 64 Law & Contemporary Problems (Duke Law School) (2001).

Mr. Gross is also a Board member of T’ruah, The Rabbinic Call for Human Rights, and graduate of NYU Law ’76 and Columbia College ’73.

Mr. Gross is admitted to practice in New York, the United States District Courts for the Southern and Eastern Districts of New York, the United States Courts of Appeals for the First, Second, Third and Eighth Circuits, and the United States Supreme Court.

In 2012 and 2013, Benchmark Litigation named Mr. Gross a “Local Litigation Star” in New York. He has been selected by his peers as a Super Lawyer five times, most recently in 2013.