Tennant Company (TNC) gains 0.69% Posted on May 06, 2021 By News Team Tennant Company (NYSE: TNC) shares gained 0.69% to end trading Wednesday at $82.94 per share – a net change of $0.57. Shares traded between $83.12 and $82.17 throughout the day. 45905 shares of Tennant Company exchanged hands.