The purported class on whose behalf the action was filed is a detailed construction; the complaint purports to be filed on behalf of all persons or entities "who purchased U.S. dollar LIBOR-Based Derivatives" in the United States from one of 25 non-Defendant commercial banks and insurance companies "based directly on the rates set by Defendants, from at least as early as August 1, 2007 through such time as the effects of the Defendants' illegal conduct ceased." The 25 non-Defendant banks and insurance companies include such banks and insurance companies as Wells Fargo, Met Life, Goldman Sachs, Morgan Stanley, Keycorp and Northern Trust, among others. The complaint asserts a single count for damages based on alleged violations of the Sherman Anti-Trust Act. The complaint alleges an unlawful conspiracy to manipulate and suppress the U.S. dollar Libor benchmark rate. The complaint further alleges that by manipulating Libor, the defendants paid lower returns to customers who bought Libor based derivatives.