WD 40 Co (WDFC) · Insider trading
What WD 40's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$627,557
6 insiders, 7 trades
Sold, 12 months
$117,063
1 insider, 0% under a plan
Net, 12 months
+$510,494
bought less sold
Latest filing
2026-10-13
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Noble William BGroup Managing Director | – | $495,284 | 2 | 2024-11-13 | 7,999 |
| Pendarvis DavidDirector | $207,493 | – | 2 | 2026-02-05 | 6,898 |
| Carter Daniel TDirector | $199,370 | – | 1 | 2025-10-27 | 7,205 |
| Olsem Patricia QDivision President, Americas | – | $117,063 | 2 | 2026-08-13 | 4,574 |
| Hyzer Sara KathleenVP, Finance & CFO | $97,136 | – | 2 | 2025-10-28 | 5,935 |
| Etchart EricDirector | $97,010 | – | 1 | 2025-10-30 | 8,370 |
| Brass Steven ADirector, President and CEO | $72,567 | – | 1 | 2025-10-28 | 33,761 |
| Kiamilev Phenix Q.VP, GC & Chief Compliance Ofcr | $11,025 | – | 1 | 2025-10-28 | – |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-13 | Olsem Patricia QDivision President, Americas | Sale | 200 | 234.72 | $46,944 | 4,574 | Form 4 |
| 2026-08-10 | Olsem Patricia QDivision President, Americas | Sale | 300 | 233.73 | $70,119 | 4,774 | Form 4 |
| 2026-02-05 | Pendarvis DavidDirector | Buy | 424 | 247.15 | $104,792 | 6,898 | Form 4 |
| 2025-10-30 | Pendarvis DavidDirector | Buy | 523 | 196.37 | $102,702 | 5,862 | Form 4 |
| 2025-10-30 | Etchart EricDirector | Buy | 500 | 194.02 | $97,010 | 8,370 | Form 4 |
| 2025-10-28 | Hyzer Sara KathleenVP, Finance & CFO | Buy | 200 | 200.46 | $40,092 | 5,935 | Form 4 |
| 2025-10-28 | Brass Steven ADirector, President and CEO | Buy | 362 | 200.46 | $72,567 | 33,761 | Form 4 |
| 2025-10-28 | Kiamilev Phenix Q.VP, GC & Chief Compliance Ofcr | Buyindirect | 55 | 200.46 | $11,025 | 4,303 | Form 4 |
| 2025-10-27 | Carter Daniel TDirector | Buy | 1,000 | 199.37 | $199,370 | 7,205 | Form 4 |
| 2025-04-11 | Hyzer Sara KathleenVP, Finance & CFO | Buy | 256 | 222.83 | $57,044 | 4,072 | Form 4 |
| 2024-11-13 | Noble William BGroup Managing Director | Sale | 1,000 | 289.70 | $289,700 | 7,999 | Form 4 |
| 2024-10-22 | Noble William BGroup Managing Director, EIMEA | Sale | 800 | 256.98 | $205,584 | 8,999 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
39 × grant or award30 × shares withheld for tax
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-10-08 | Kiamilev Phenix Q.VP, GC & Chief Compliance Ofcr | Grant or award A | +1,103 | – | 5,410 | Form 4 |
| 2026-10-08 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Grant or award A | +1,005 | – | 5,631 | Form 4 |
| 2026-10-08 | Hyzer Sara KathleenVP, Finance & CFO | Grant or award A | +1,961 | – | 7,910 | Form 4 |
| 2026-10-08 | Olsem Patricia QDivision President, Americas | Grant or award A | +1,054 | – | 5,628 | Form 4 |
| 2026-10-08 | Cloez Christophe PaulManaging Director, EIMEA | Grant or award A | +1,103 | – | 5,588 | Form 4 |
| 2026-10-08 | Brass Steven ADirector, CEO and President | Grant or award A | +9,808 | – | 40,971 | Form 4 |
| 2026-10-08 | Giordano Nicholas DanielVP, Corporate Controller & CAO | Grant or award A | +257 | – | 597 | Form 4 |
| 2026-02-18 | Plunk Ken AllenDirector | Grant or award A | +515 | – | 515 | Form 4 |
| 2025-12-12 | Burks CynthiaDirector | Grant or award A | +612 | – | 1,903 | Form 4 |
| 2025-12-12 | Monteagudo GracielaDirector | Grant or award A | +612 | – | 2,873 | Form 4 |
| 2025-12-12 | Saunders AnneDirector | Grant or award A | +612 | – | 3,363 | Form 4 |
| 2025-12-12 | Lee Lara LDirector | Grant or award A | +612 | – | 2,503 | Form 4 |
| 2025-12-12 | Pendarvis DavidDirector | Grant or award A | +612 | – | 6,474 | Form 4 |
| 2025-12-12 | Carter Daniel TDirector | Grant or award A | +612 | – | 7,817 | Form 4 |
| 2025-12-12 | Etchart EricDirector | Grant or award A | +612 | – | 8,982 | Form 4 |
| 2025-12-12 | Etchart EricDirector | Grant or award A | +367 | – | 9,349 | Form 4 |
| 2025-12-12 | Magee Edward O JrDirector | Grant or award A | +612 | – | 2,613 | Form 4 |
| 2025-10-27 | Noble William BGroup Managing Director | Shares withheld for tax F | −258 | – | 7,741 | Form 4 |
| 2025-10-27 | Noble William BGroup Managing Director | Shares withheld for tax F | −316 | – | 8,097 | Form 4 |
| 2025-10-27 | Olsem Patricia QDivision President, Americas | Shares withheld for tax F | −335 | – | 5,475 | Form 4 |
| 2025-10-27 | Olsem Patricia QDivision President, Americas | Shares withheld for tax F | −401 | – | 5,074 | Form 4 |
| 2025-10-27 | Brass Steven ADirector, President and CEO | Shares withheld for tax F | −2,380 | – | 35,371 | Form 4 |
| 2025-10-27 | Brass Steven ADirector, President and CEO | Shares withheld for tax F | −1,972 | – | 33,399 | Form 4 |
| 2025-10-27 | Hyzer Sara KathleenVP, Finance & CFO | Shares withheld for tax F | −533 | – | 6,190 | Form 4 |
| 2025-10-27 | Hyzer Sara KathleenVP, Finance & CFO | Shares withheld for tax F | −455 | – | 5,735 | Form 4 |
| 2025-10-27 | Kiamilev Phenix Q.VP, GC & Chief Compliance Ofcr | Shares withheld for tax F | −267 | – | 4,542 | Form 4 |
| 2025-10-27 | Kiamilev Phenix Q.VP, GC & Chief Compliance Ofcr | Shares withheld for tax F | −294 | – | 4,248 | Form 4 |
| 2025-10-27 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Shares withheld for tax F | −260 | – | 5,194 | Form 4 |
| 2025-10-27 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Shares withheld for tax F | −294 | – | 4,900 | Form 4 |
| 2025-10-09 | Brass Steven ADirector, President and CEO | Grant or award A | +7,783 | – | 33,868 | Form 4 |
| 2025-10-09 | Brass Steven ADirector, President and CEO | Grant or award A | +3,883 | – | 37,751 | Form 4 |
| 2025-10-09 | Hyzer Sara KathleenVP, Finance & CFO | Grant or award A | +1,751 | – | 5,828 | Form 4 |
| 2025-10-09 | Hyzer Sara KathleenVP, Finance & CFO | Grant or award A | +895 | – | 6,723 | Form 4 |
| 2025-10-09 | Kiamilev Phenix Q.VP, GC & Chief Compliance Ofcr | Grant or award A | +972 | – | 3,988 | Form 4 |
| 2025-10-09 | Kiamilev Phenix Q.VP, GC & Chief Compliance Ofcr | Grant or award A | +821 | – | 4,809 | Form 4 |
| 2025-10-09 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Grant or award A | +843 | – | 4,633 | Form 4 |
| 2025-10-09 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Grant or award A | +821 | – | 5,454 | Form 4 |
| 2025-10-09 | Olsem Patricia QDivision President, Americas | Grant or award A | +1,011 | – | 2,330 | Form 4 |
| 2025-10-09 | Olsem Patricia QDivision President, Americas | Grant or award A | +1,120 | – | 3,450 | Form 4 |
| 2024-12-12 | Mihalik Trevor IDirector | Grant or award A | +412 | – | 3,903 | Form 4 |
| 2024-12-12 | Mihalik Trevor IDirector | Grant or award A | +281 | – | 4,184 | Form 4 |
| 2024-12-12 | Carter Daniel TDirector | Grant or award A | +412 | – | 6,212 | Form 4 |
| 2024-12-12 | Burks CynthiaDirector | Grant or award A | +412 | – | 1,298 | Form 4 |
| 2024-12-12 | Lee Lara LDirector | Grant or award A | +412 | – | 1,898 | Form 4 |
| 2024-12-12 | Monteagudo GracielaDirector | Grant or award A | +412 | – | 2,268 | Form 4 |
| 2024-12-12 | Magee Edward O JrDirector | Grant or award A | +412 | – | 1,916 | Form 4 |
| 2024-12-12 | Magee Edward O JrDirector | Grant or award A | +93 | – | 2,009 | Form 4 |
| 2024-12-12 | Etchart EricDirector | Grant or award A | +412 | – | 7,601 | Form 4 |
| 2024-12-12 | Etchart EricDirector | Grant or award A | +281 | – | 7,882 | Form 4 |
| 2024-12-12 | Pendarvis DavidDirector | Grant or award A | +412 | – | 5,346 | Form 4 |
| 2024-12-12 | Saunders AnneDirector | Grant or award A | +412 | – | 2,758 | Form 4 |
| 2024-10-22 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Shares withheld for tax F | −222 | – | 3,964 | Form 4 |
| 2024-10-22 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Shares withheld for tax F | −140 | – | 3,824 | Form 4 |
| 2024-10-22 | Lindeman Jeffrey GVP, Chief People, Cult. & Cap. | Shares withheld for tax F | −45 | – | 3,779 | Form 4 |
| 2024-10-22 | Kiamilev Phenix Q.VP, General Counsel & Corp Sec | Shares withheld for tax F | −255 | – | 3,289 | Form 4 |
| 2024-10-22 | Kiamilev Phenix Q.VP, General Counsel & Corp Sec | Shares withheld for tax F | −238 | – | 3,051 | Form 4 |
| 2024-10-22 | Kiamilev Phenix Q.VP, General Counsel & Corp Sec | Shares withheld for tax F | −38 | – | 3,013 | Form 4 |
| 2024-10-22 | Noble William BGroup Managing Director, EIMEA | Shares withheld for tax F | −245 | – | 10,074 | Form 4 |
| 2024-10-22 | Noble William BGroup Managing Director, EIMEA | Shares withheld for tax F | −204 | – | 9,870 | Form 4 |
| 2024-10-22 | Noble William BGroup Managing Director, EIMEA | Shares withheld for tax F | −71 | – | 9,799 | Form 4 |
| 2024-10-22 | Hyzer Sara KathleenVP, Finance & CFO | Shares withheld for tax F | −429 | – | 4,231 | Form 4 |
| 2024-10-22 | Hyzer Sara KathleenVP, Finance & CFO | Shares withheld for tax F | −344 | – | 3,887 | Form 4 |
| 2024-10-22 | Hyzer Sara KathleenVP, Finance & CFO | Shares withheld for tax F | −73 | – | 3,814 | Form 4 |
| 2024-10-22 | Olsem Patricia QDivision President, Americas | Shares withheld for tax F | −333 | – | 5,274 | Form 4 |
| 2024-10-22 | Olsem Patricia QDivision President, Americas | Shares withheld for tax F | −326 | – | 1,378 | Form 4 |
| 2024-10-22 | Olsem Patricia QDivision President, Americas | Shares withheld for tax F | −59 | – | 1,319 | Form 4 |
| 2024-10-22 | Brass Steven ADirector, President and CEO | Shares withheld for tax F | −1,672 | – | 27,361 | Form 4 |
| 2024-10-22 | Brass Steven ADirector, President and CEO | Shares withheld for tax F | −1,058 | – | 26,303 | Form 4 |
| 2024-10-22 | Brass Steven ADirector, President and CEO | Shares withheld for tax F | −253 | – | 26,050 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.