WDFC
WD 40 CO
NASDAQ · Basic Materials · Chemicals - Specialty · US
$219.41
+2.49%0
Insider buys (3m)
2
Insider sells (3m)
-$117.1K
Net value (3m)
-4.0%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Oct 27, 2026 | HYZER SARA KATHLEEN · officer: VP, Finance & CFO | F-InKind | 693 | $0.00 |
| Oct 27, 2026 | KIAMILEV PHENIX Q. · officer: VP, GC & Chief Compliance Ofcr | F-InKind | 293 | $0.00 |
| Oct 27, 2026 | Olsem Patricia Q · officer: Division President, Americas | F-InKind | 332 | $0.00 |
| Oct 27, 2026 | Brass Steven A · director, officer: CEO and President | F-InKind | 3,101 | $0.00 |
| Oct 27, 2026 | GIORDANO NICHOLAS DANIEL · officer: VP, Corporate Controller & CAO | F-InKind | 34 | $0.00 |
| Oct 27, 2026 | LINDEMAN JEFFREY G · officer: VP, Chief People, Cult. & Cap. | F-InKind | 269 | $0.00 |
| Oct 27, 2026 | CLOEZ CHRISTOPHE PAUL · officer: Managing Director, EIMEA | F-InKind | 183 | $0.00 |
| Oct 13, 2026 | CLOEZ CHRISTOPHE PAUL · officer: Managing Director, EIMEA | A-Award | 1,103 | $0.00 |
| Oct 13, 2026 | GIORDANO NICHOLAS DANIEL · officer: VP, Corporate Controller & CAO | A-Award | 257 | $0.00 |
| Oct 13, 2026 | HYZER SARA KATHLEEN · officer: VP, Finance & CFO | A-Award | 1,961 | $0.00 |
| Oct 13, 2026 | LINDEMAN JEFFREY G · officer: VP, Chief People, Cult. & Cap. | A-Award | 1,005 | $0.00 |
| Oct 13, 2026 | Olsem Patricia Q · officer: Division President, Americas | A-Award | 1,054 | $0.00 |
| Oct 13, 2026 | Brass Steven A · director, officer: CEO and President | A-Award | 9,808 | $0.00 |
| Oct 13, 2026 | KIAMILEV PHENIX Q. · officer: VP, GC & Chief Compliance Ofcr | A-Award | 1,103 | $0.00 |
| Aug 14, 2026 | Olsem Patricia Q · officer: Division President, Americas | Sale | 200 | $235 |
| Aug 12, 2026 | Olsem Patricia Q · officer: Division President, Americas | Sale | 300 | $234 |
| Feb 19, 2026 | Plunk Ken Allen · director | A-Award | 515 | $0.00 |
| Feb 6, 2026 | PENDARVIS DAVID · director | Purchase | 424 | $247 |
| Dec 12, 2025 | Monteagudo Graciela · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | CARTER DANIEL T · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | Etchart Eric · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | Magee Edward O Jr · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | Saunders Anne · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | Burks Cynthia · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | Lee Lara L · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | PENDARVIS DAVID · director | A-Award | 612 | $0.00 |
| Dec 12, 2025 | Etchart Eric · director | A-Award | 367 | $0.00 |
| Oct 30, 2025 | PENDARVIS DAVID · director | Purchase | 523 | $196 |
| Oct 30, 2025 | Etchart Eric · director | Purchase | 500 | $194 |
| Oct 29, 2025 | HYZER SARA KATHLEEN · officer: VP, Finance & CFO | Purchase | 200 | $200 |
Institutional positioning
13F filings over the trailing two quarters
New 104Increased 233Reduced 261Sold out 59
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 2,075,743 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 2,019,975 | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1,075,929 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 1,038,139 | May 8, 2026 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Increased | 634,334 | May 14, 2026 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Reduced | 629,021 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 605,654 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 604,460 | Aug 13, 2026 |
| STATE STREET CORP | Increased | 549,199 | Sep 22, 2026 |
| STATE STREET CORP | Increased | 526,402 | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | Reduced | 469,536 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 441,406 | Aug 12, 2026 |
| FIRST TRUST ADVISORS LP | Increased | 411,312 | May 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 407,471 | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | Reduced | 377,541 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Oct 27, 2026