| Date | Event |
| 25-Nov-09 | Ex-Date for dividend payment of $0.14 |
| 3-Nov-09 | TENNANT CO Files SEC form 10-Q, Quarterly Report |
| 27-Oct-09 | TENNANT CO Files SEC form 8-K, Results of Operations and Financial Condition |
| 27-Oct-09 | Price hit new 52-week high ($33.37) |
| 27-Aug-09 | Ex-Date for dividend payment of $0.13 |
| 19-Aug-09 | TENNANT CO Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhibits |
| 4-Aug-09 | TENNANT CO Files SEC form 10-Q, Quarterly Report |
| 30-Jul-09 | TENNANT CO Files SEC form 8-K, Results of Operations and Financial Condition |
| 11-May-09 | TENNANT CO Files SEC form 10-Q, Quarterly Report |
| 7-May-09 | TENNANT CO Files SEC form 8-K, Results of Operations and Financial Condition |
| 16-Mar-09 | TENNANT CO Files SEC form 10-K, Annual Report |
| 11-Mar-09 | Price hit new 52-week low ($7.61) |
| 10-Mar-09 | TENNANT CO Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 9-Mar-09 | Price hit new 52-week low ($7.65) |
| 6-Mar-09 | Price hit new 52-week low ($8.02) |
| 24-Feb-09 | TENNANT CO Files SEC form 8-K, Results of Operations and Financial Condition |
| 17-Dec-08 | TENNANT CO Files SEC form 8-K, Material Impairments, Financial Statements and Exhibits |
| 4-Nov-08 | TENNANT CO Files SEC form 10-Q, Quarterly Report |