Company profile
Wd 40 Co Insider Trading
WDFCEvery SEC Form 4 insider trading filing for Wd 40 Co (WDFC) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Miscellaneous Chemical Products
- CIK
- 0000105132
- Filings
- 83
- Insiders
- 17
- Last filing
- 2026-08-13
Activity summary
No insider transactions in the last 30 days. The most recent was on August 13, 2026, when Patricia Q Olsem sold 200 shares. 83 filings from 17 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Wd 40 Co insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $523K.
90 day insight
Over the last 90 days, Wd 40 Co insiders sold $117K across 2 transactions with no open-market purchases.
- Most active insider: Patricia Q Olsem with 2 transactions totaling $117K.
- Largest single sale: $70K by Patricia Q Olsem on Aug 10, 2026.
Activity skews bearish — sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 13, 2026 | Patricia Q Olsem | WDFC | Sale | 200 | $234.72 | $47K |
| Aug 10, 2026 | Patricia Q Olsem | WDFC | Sale | 300 | $233.73 | $70K |
| Feb 18, 2026 | Ken Allen Plunk | WDFC | Award | 515 | — | — |
| Feb 5, 2026 | David Pendarvis | WDFC | Purchase | 424 | $247.15 | $105K |
| Dec 12, 2025 | David Pendarvis | WDFC | Award | 612 | — | — |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Wd 40 Co as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →