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WD 40 stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+16.4% to $221.58
WD 40 (WDFC) stock rose 16% over the last 252 sessions, to $221.58. On the way it reported 0 quarters, its insiders filed 3 open-market trades and 1 Form 144 notice of planned sales, and the company filed 4 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Sep 3, 2026 | 8-K | Directors and officers: departures, appointments, pay | −1.4% (−1.0% vs SPY) | −7.7% (−6.6% vs SPY) | −2.2% (−2.7% vs SPY) |
| Aug 13, 2026 | Insider sale | Olsem Patricia Q sold $47K | −1.0% (−1.7% vs SPY) | −4.1% (−3.6% vs SPY) | −17.7% (−16.6% vs SPY) |
| Aug 10, 2026 | Insider sale | Olsem Patricia Q sold $70K | −0.2% (−0.2% vs SPY) | −2.5% (−2.9% vs SPY) | −15.2% (−14.3% vs SPY) |
| Aug 7, 2026 | Form 144 | Form 144: Patricia Q Olsem plans to sell $136K | +1.6% (+1.0% vs SPY) | −0.5% (−1.7% vs SPY) | −10.8% (−11.0% vs SPY) |
| Jun 25, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.9% (+1.6% vs SPY) | −0.1% (−1.5% vs SPY) | −4.8% (−5.4% vs SPY) |
| Jun 4, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.2% (+2.8% vs SPY) | +9.9% (+12.4% vs SPY) | +20.6% (+21.6% vs SPY) |
| Feb 19, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.1% (−0.6% vs SPY) | +1.6% (+0.9% vs SPY) | −10.8% (−5.7% vs SPY) |
| Feb 5, 2026 | Insider buy | Pendarvis David bought $105K | +3.7% (+4.9% vs SPY) | −3.2% (−4.1% vs SPY) | −3.1% (−1.1% vs SPY) |
Insiders’ record here
In the year on the chart, WD 40's insiders reported 1 open-market buy ($105K) and 2 sales ($117K). Of the 2 old enough to score, 1 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was −25.0% and after a sale −0.3%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
WD 40: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.