William B. Noble is Director at WD 40 CO (WDFC). They have made 14 open-market trades across 1 company since 2006, most recently 2025-10-27.
CIK 0001253564
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| WDFC | 7,741 | $1.5M |
Shares reported on the most recent Form 4, priced at the 2025-10-29 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WDFC | SELL | 2024-11-13 | 2024-11-14 | $289.70 | $290K | -0.6% | -5.4% | -19.3% |
| WDFC | SELL | 2024-10-22 | 2024-10-24 | $256.98 | $206K | +2.5% | +7.1% | -13.7% |
| WDFC | SELL | 2021-01-26 | 2021-01-27 | $305.46 | $356K | +1.6% | -2.5% | -21.1% |
| WDFC | SELL | 2020-10-21 | 2020-10-22 | $217.50 | $218K | +5.7% | +7.3% | +19.5% |
| WDFC | SELL | 2020-08-18 | 2020-08-19 | $199.70 | $100K | +1.6% | -3.6% | +30.0% |
| WDFC | SELL | 2018-08-15 | 2018-08-15 | $166.13 | $332K | +4.6% | +5.8% | +2.0% |
| WDFC | SELL | 2016-08-05 | 2016-08-08 | $115.14 | $115K | +0.6% | +4.1% | -10.5% |
| WDFC | SELL | 2014-08-01 | 2014-08-04 | $66.69 | $120K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL | 2014-02-11 | 2014-02-12 | $69.05 | $299K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-10-24 | 2013-10-25 | $70.06 | $701K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-07-09 | 2013-07-11 | $62.66 | $313K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-06-18 | 2013-06-20 | $57.00 | $115K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-06-10 | 2013-06-12 | $57.00 | $139K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-05-17 | 2013-05-21 | $57.00 | $30K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-05-10 | 2013-05-13 | $55.95 | $132K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-05-07 | 2013-05-09 | $55.95 | $148K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-02-19 | 2013-02-21 | $54.75 | $110K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2013-02-08 | 2013-02-12 | $53.95 | $162K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2011-07-08 | 2011-07-12 | $44.30 | $222K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2011-04-05 | 2011-04-07 | $43.71 | $225K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2011-03-31 | 2011-04-04 | $42.30 | $127K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2010-10-08 | 2010-10-12 | $39.50 | $40K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2010-10-05 | 2010-10-07 | $38.50 | $55K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2010-07-27 | 2010-07-29 | $37.06 | $111K | +0.6% | -1.6% | -1.6% |
| WDFC | SELL · 10b5-1 | 2010-07-23 | 2010-07-27 | $36.50 | $4K | +0.6% | -1.6% | -1.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.