Geoffrey M. Horn

Geoffrey M. Horn


about Geoffrey Horn
Geoffrey Horn heads the firm’s commodity litigation practice group, one of the premier commodity litigation practice groups in the country. He also represents third-party payers such as major health insurers, HMOs, employers, and health and pharmacy benefits plans.

Practice Areas:

Commodity litigation, securities litigation, healthcare litigation

Noteworthy Cases & Achievements:

Many of Mr. Horn’s cases focus on recoveries from manufacturers and providers that overcharge for prescription drugs, medical devices or services. In addition, he represents institutions and individuals in a range of securities and antitrust litigation.

Mr. Horn frequently represents investors in commodities fraud litigations. He filed the first proposed class action in a case against numerous global financial institutions responsible for the setting of the London Interbank Offered Rate for the Swiss Franc, with the defendants settling with global regulators and heavy fines. The case, for which Lowey Dannenberg is sole interim class counsel, is pending in the Southern District of New York. Mr. Horn is litigating similar cases involving the Pound Sterling and Japanese Yen. Another proposed class action is against numerous global financial institutions responsible for the setting of the Euro Interbank Offered Rate (“Euribor”), a global reference rate used to benchmark some $200 trillion of financial products.

Mr. Horn also filed the first class action against some of the world’s largest oil companies on behalf of a proposed class of traders who alleged a conspiracy to manipulate North Sea Brent Crude oil prices by deliberately reporting false trade information. In another complex litigation involving allegations of price manipulation, Mr. Horn represents plaintiffs in a proposed class action centered on NYMEX palladium and platinum futures prices.

Mr. Horn also has recovered significant settlements on behalf of his health insurance clients. These include a case involving overcharges for the prescription drugs Hytrin ($29.3 million settlement) and Vioxx ($65 million settlement).

In the area of securities litigation, Mr. Horn has represented institutional clients as plaintiffs in matters related to auction rate securities. He also represented a foreign bank in investigations of its holdings in credit default swaps and other complex derivatives and structured products.

Mr. Horn is a contributing author to an antitrust handbook by the ABA.


B.A. Trinity College (1989)

J.D. Albany Law School (1993)

Bar/Court Admissions:

New York, the U.S. Courts of Appeals for the 2nd and 11th Circuits, the U.S. District Court for the Southern District of New York