NEW YORK, March 25, 2026 (GLOBE NEWSWIRE) -- Leading securities law firm Bleichmar Fonti & Auld LLP announces an investigation into Tennant Company (NYSE:TNC) for potential violations of the federal securities laws. If you invested in Tennant, you are encouraged to obtain additional information by visiting: https://www.bfalaw.com/cases/tennant-company-class-action-lawsuit. Key Details of the Tennant ($TNC) Class Action Investigation: Investigation Overview: Securities fraud related to Tennant’s implementati ...