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Gary E. Cantor is Of Counsel in the Philadelphia office.  He concentrates his practice on securities and commercial litigation and derivatives valuations.

Mr. Cantor served as co-lead counsel in Steiner v. Phillips, et al. (Southmark Securities), Consolidated C.A. No. 3-89-1387-X (N.D. Tex.), (class settlement of $82.5 million), and In re Kenbee Limited Partnerships Litigation, Civil Action No. 91-2174 (GEB), (class settlement involving 119 separate limited partnerships resulting in cash settlement, oversight of partnership governance and debt restructuring (with as much as $100 million in wrap mortgage reductions)). Mr. Cantor also represented plaintiffs in numerous commodity cases.

In recent years, Mr. Cantor played a leadership role in In re Oppenheimer Rochester Funds Group Securities Litigation ($89.5 million settlement on behalf of investors in six tax-exempt bond mutual funds managed by OppenheimerFunds, Inc.), No. 09-md-02063-JLK (D. Col.); In re KLA-Tencor Corp. Securities Litigation, Master File No. C-06-04065-CRB (N.D. Cal.) ($65 million class settlement); In re Sepracor Inc. Securities Litigation, Civil Action no. 02-12235-MEL (D. Mass.) ($52.5 million settlement.);  In re Sotheby’s Holding, Inc. Securities Litigation, No. 00 Civ. 1041 (DLC) (S.D.N.Y.) ($70 million class settlement). He was also actively involved in the Merrill Lynch Securities Litigation (class settlement of $475 million) and Waste Management Securities Litigation (class settlement of $220 million).

For over 20 years, Mr. Cantor also has concentrated on securities valuations and the preparation of event or damage studies or the supervision of outside damage experts for many of the firm’s cases involving stocks, bonds, derivatives, and commodities.  Mr. Cantor’s work in this regard has focused on statistical analysis of securities trading patterns and pricing for determining materiality, loss causation and damages as well as aggregate trading models to determine class-wide damages.

Mr. Cantor was a member of the Moot Court Board at University of Pennsylvania Law School where he authored a comment on computer-generated evidence in the University of Pennsylvania Law Review. He graduated from Rutgers College with the highest distinction in economics and was a member of Phi Beta Kappa.

Business and Community Leadership

  • A former trustee of the Jewish Federation of Greater Philadelphia
  • A former president, treasurer, and director of Torah Academy of Greater Philadelphia

Prominent Judgments and Settlements



Law School

University of Pennsylvania Law School, J.D.


Rutgers College, B.A., magna cum laude

Honors & Awards:

  • AV Peer Review Rated, Martindale Hubbell, representing the highest rating for professional excellence

  • Designated a “Pennsylvania Super Lawyer” by Philadelphia and Law and Politics magazines, a distinction awarded to only 5% of attorneys in the state, in recognition of his extensive securities litigation experience


  • A Reconsideration of the Admissibility of Computer-Generated Evidence, 126 U. Pa. L. Rev. 425 (1977)


Member – Pennsylvania Bar

Admitted – Eastern District of Pennsylvania

Admitted – District of Colorado

Admitted – Third Circuit Court of Appeals

Admitted – Seventh Circuit Court of Appeals

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