WD 40 Co (WDFC) insider trading
Every open-market stock purchase and sale by WD 40 Co executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Patricia Q Olsem (President) sold $117K in the last 90 days.
- Last insider buy: David Pendarvis (Insider), $105K, 8 months ago.
Last 12 months: insiders bought $628K (7 buys) and sold $117K (2 sales). Last close $229.24 on Aug 14, 2026.
Recent WDFC insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Aug 13, 2026 | Patricia Q Olsem (President) | Sold | $46.9K |
| Aug 10, 2026 | Patricia Q Olsem (President) | Sold | $70.1K |
| Feb 18, 2026 | Ken Allen Plunk (Insider) | Bought (not open market) | — |
| Feb 5, 2026 | David Pendarvis (Insider) | Bought | $105K |
| Dec 12, 2025 | Eric Etchart (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | Lara L Lee (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | David Pendarvis (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | Anne Saunders (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | Edward O Magee Jr (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | Cynthia Burks (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | Graciela Monteagudo (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | Daniel T Carter (Insider) | Bought (not open market) | — |
| Dec 12, 2025 | Eric Etchart (Insider) | Bought (not open market) | — |
| Oct 30, 2025 | David Pendarvis (Insider) | Bought | $103K |
| Oct 30, 2025 | Eric Etchart (Insider) | Bought | $97K |
| Oct 28, 2025 | Steven A Brass (CEO) | Bought | $72.6K |
| Oct 28, 2025 | Sara Kathleen Hyzer (CFO) | Bought | $40.1K |
| Oct 28, 2025 | Phenix Q. Kiamilev (VP) | Bought | $11K |
| Oct 27, 2025 | Daniel T Carter (Insider) | Bought | $199K |
| Oct 27, 2025 | Sara Kathleen Hyzer (CFO) | Sold (not open market) | — |
| Oct 27, 2025 | Steven A Brass (CEO) | Sold (not open market) | — |
| Oct 27, 2025 | Patricia Q Olsem (President) | Sold (not open market) | — |
| Oct 27, 2025 | Patricia Q Olsem (President) | Sold (not open market) | — |
| Oct 27, 2025 | Phenix Q. Kiamilev (VP) | Sold (not open market) | — |
| Oct 27, 2025 | Steven A Brass (CEO) | Sold (not open market) | — |
Who's trading WDFC
- Patricia Q Olsem, President: sold $117K (2 sales), last Aug 13, 2026
- Ken Allen Plunk, Insider: other filings, last Feb 18, 2026
- David Pendarvis, Insider: bought $207K (2 buys), last Feb 5, 2026
- Cynthia Burks, Insider: other filings, last Dec 12, 2025
- Edward O Magee Jr, Insider: other filings, last Dec 12, 2025
- Anne Saunders, Insider: other filings, last Dec 12, 2025
- Lara L Lee, Insider: other filings, last Dec 12, 2025
- Daniel T Carter, Insider: bought $199K (1 buy), last Dec 12, 2025
- Graciela Monteagudo, Insider: other filings, last Dec 12, 2025
- Eric Etchart, Insider: bought $97K (1 buy), last Dec 12, 2025
- Steven A Brass, CEO: bought $72.6K (1 buy), last Oct 28, 2025
- Sara Kathleen Hyzer, CFO: bought $40.1K (1 buy), last Oct 28, 2025
- Phenix Q. Kiamilev, VP: bought $11K (1 buy), last Oct 28, 2025
- William B Noble, Director: other filings, last Oct 27, 2025
- Jeffrey G Lindeman, VP: other filings, last Oct 27, 2025
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