TNC Stock Drop: Tennant Company Investors with Losses Notified of Rights in Pending Securities Fraud Investigation After Stock Plummeted 23% Accessibility StatementSkip Navigation BFA Law is investigating Tennant Company after its stock plummeted 23% due to issues with its ERP system, potentially violating federal securities laws. Tennant manufactures industrial cleaning equipment, including large mechanical floor scrubbers and sweepers used in warehouses, retail stores, and other commercial facilities. BFA ...