About Lowey Dannenberg NEW YORK, June 24, 2026 (GLOBE NEWSWIRE) -- Lowey Dannenberg P.C., a preeminent law firm in obtaining redress for consumers and investors, is investigating Tennant Company (NYSE: TNC) ("Tennant" or the "Company") for potential violations of the federal securities laws. On February 24, 2026, Tennant revealed that the rollout of its new ERP system in North America caused severe operational disruptions, including that it was unable to process and ship customer orders following the launch ...