| SC 13G/A | 2016-01-27 | BlackRock Inc. | WD 40 CO | 1,309,084 | 9.1% | EDGAR |
| SC 13G/A | 2015-02-12 | PARNASSUS INVESTMENTS /CA | WD 40 CO | 1,228,789 | 8.4% | EDGAR |
| SC 13G/A | 2015-02-10 | VANGUARD GROUP INC | WD 40 CO | 964,232 | 6.6% | EDGAR |
| SC 13G/A | 2015-02-05 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | WD 40 CO | 810,292 | 5.5% | EDGAR |
| SC 13G/A | 2015-01-22 | BlackRock Inc. | WD 40 CO | 1,260,897 | 8.6% | EDGAR |
| SC 13G/A | 2014-02-14 | PARNASSUS INVESTMENTS /CA | WD 40 CO | 1,144,201 | 7.5% | EDGAR |
| SC 13G/A | 2014-02-13 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | WD 40 CO | 0 | 0.0% | EDGAR |
| SC 13G/A | 2014-02-12 | VANGUARD GROUP INC | WD 40 CO | 951,066 | 6.2% | EDGAR |
| SC 13G/A | 2014-02-06 | RidgeWorth Capital Management, Inc. | WD 40 CO | 673,471 | 4.4% | EDGAR |
| SC 13G/A | 2014-01-31 | BlackRock Inc. | WD 40 CO | 1,330,209 | 8.7% | EDGAR |
| SC 13G/A | 2014-01-13 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | WD 40 CO | 859,544 | 5.5% | EDGAR |
| SC 13G | 2013-02-13 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | WD 40 CO | 786,418 | 5.0% | EDGAR |
| SC 13G | 2013-02-12 | RidgeWorth Capital Management, Inc. | WD 40 CO | 1,014,553 | 6.5% | EDGAR |
| SC 13G/A | 2013-02-11 | VANGUARD GROUP INC | WD 40 CO | 890,900 | 5.7% | EDGAR |
| SC 13G/A | 2013-02-08 | BlackRock Inc. | WD 40 CO | 1,201,099 | 7.6% | EDGAR |
| SC 13G/A | 2013-02-08 | PARNASSUS INVESTMENTS /CA | WD 40 CO | 1,131,000 | 7.2% | EDGAR |
| SC 13G/A | 2013-02-05 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | WD 40 CO | 1,235,943 | 7.7% | EDGAR |
| SC 13G/A | 2012-02-10 | BlackRock Inc. | WD 40 CO | 1,209,579 | 7.6% | EDGAR |
| SC 13G | 2012-02-10 | VANGUARD GROUP INC | WD 40 CO | 839,770 | 5.3% | EDGAR |
| SC 13G/A | 2012-02-08 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | WD 40 CO | 1,244,389 | 7.3% | EDGAR |