WD 40 CO ($WDFC) Insider Transactions

Last updated: 2026-03-14 11:51 UTC | Total transactions: 127

In the last 12 months, insiders at WD 40 CO ($WDFC) filed 127 transactions with the SEC: 17 open-market purchases totaling $1,328,412 and 4 sales totaling $658,124. Net insider sentiment: net buying.

WD 40 CO operates in the Miscellaneous chemical products industry (Industrial Applications and Services sector).

Most Active Insiders

View all SEC Filings for WD 40 CO (WDFC).

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Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Feb. 18, 2026 Plunk Ken Allen Not found A Common Stock 515 $0.00 515.0000 19,970,058 9999.99% 0.00%
Feb. 5, 2026 PENDARVIS DAVID Not found P Common Stock 424 $247.15 6,898.0000 19,970,058 6.55% 0.00%
Dec. 12, 2025 Etchart Eric Not found A Common Stock 367 $0.00 9,349.0000 19,970,058 4.09% 0.00%
Dec. 12, 2025 CARTER DANIEL T Not found A Common Stock 612 $0.00 7,817.0000 19,970,058 8.49% 0.00%
Dec. 12, 2025 PENDARVIS DAVID Not found A Common Stock 612 $0.00 6,474.0000 19,970,058 10.44% 0.00%
Dec. 12, 2025 Lee Lara L Not found A Common Stock 612 $0.00 2,503.0000 19,970,058 32.36% 0.00%
Dec. 12, 2025 Saunders Anne Not found A Common Stock 612 $0.00 3,363.0000 19,970,058 22.25% 0.00%
Dec. 12, 2025 Monteagudo Graciela Not found A Common Stock 612 $0.00 2,873.0000 19,970,058 27.07% 0.00%
Dec. 12, 2025 Burks Cynthia Not found A Common Stock 612 $0.00 1,903.0000 19,970,058 47.41% 0.00%
Dec. 12, 2025 Magee Edward O Jr Not found A Common Stock 612 $0.00 2,613.0000 19,970,058 30.58% 0.00%
Dec. 12, 2025 Etchart Eric Not found A Common Stock 612 $0.00 8,982.0000 19,970,058 7.31% 0.00%
Oct. 30, 2025 Etchart Eric Not found P Common Stock 500 $194.02 8,370.0000 19,954,495 6.35% 0.00%
Oct. 30, 2025 PENDARVIS DAVID Not found P Common Stock 523 $196.37 5,862.0000 19,954,495 9.80% 0.00%
Oct. 27, 2025 Olsem Patricia Q Division President, Americas F Common Stock 401 $0.00 7,988.0000 19,954,495 4.78% 0.00%
Oct. 27, 2025 NOBLE WILLIAM B Group Managing Director F Common Stock 258 $0.00 7,741.0000 19,954,495 3.23% 0.00%
Oct. 27, 2025 NOBLE WILLIAM B Group Managing Director F Common Stock 316 $0.00 8,097.0000 19,954,495 3.76% 0.00%
Oct. 28, 2025 KIAMILEV PHENIX Q. VP, GC & Chief Compliance Ofcr P Common Stock 55 $200.46 4,303.0000 19,954,495 1.29% 0.00%
Oct. 28, 2025 HYZER SARA KATHLEEN VP, Finance & CFO P Common Stock 200 $200.46 5,935.0000 19,954,495 3.49% 0.00%
Oct. 28, 2025 Brass Steven A President and CEO P Common Stock 362 $200.46 33,761.0000 19,954,495 1.08% 0.00%
Oct. 27, 2025 Olsem Patricia Q Division President, Americas F Common Stock 335 $0.00 8,389.0000 19,954,495 3.84% 0.00%
Oct. 27, 2025 KIAMILEV PHENIX Q. VP, GC & Chief Compliance Ofcr F Commont Stock 294 $0.00 4,248.0000 19,954,495 6.47% 0.00%
Oct. 27, 2025 Brass Steven A President and CEO F Common Stock 2380 $0.00 35,371.0000 19,954,495 6.30% 0.01%
Oct. 27, 2025 Brass Steven A President and CEO F Common Stock 1972 $0.00 33,399.0000 19,954,495 5.58% 0.01%
Oct. 27, 2025 HYZER SARA KATHLEEN VP, Finance & CFO F Common Stock 533 $0.00 6,190.0000 19,954,495 7.93% 0.00%
Oct. 27, 2025 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. F Common Stock 260 $0.00 5,194.0000 19,954,495 4.77% 0.00%
Oct. 27, 2025 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. F Common Stock 294 $0.00 4,900.0000 19,954,495 5.66% 0.00%
Oct. 27, 2025 KIAMILEV PHENIX Q. VP, GC & Chief Compliance Ofcr F Common Stock 267 $0.00 4,542.0000 19,954,495 5.55% 0.00%
Oct. 27, 2025 HYZER SARA KATHLEEN VP, Finance & CFO F Common Stock 455 $0.00 5,735.0000 19,954,495 7.35% 0.00%
Oct. 27, 2025 CARTER DANIEL T Not found P Common Stock 1000 $199.37 7,205.0000 19,954,495 16.12% 0.01%
Oct. 9, 2025 Brass Steven A President and CEO A Common Stock 3883 $0.00 37,751.0000 19,954,495 11.47% 0.02%
Oct. 9, 2025 Olsem Patricia Q Division President, Americas A Common Stock 1011 $0.00 7,604.0000 19,954,495 15.33% 0.01%
Oct. 9, 2025 Olsem Patricia Q Division President, Americas A Common Stock 1120 $0.00 8,724.0000 19,954,495 14.73% 0.01%
Oct. 9, 2025 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. A Common Stock 843 $0.00 4,633.0000 19,954,495 22.24% 0.00%
Oct. 9, 2025 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. A Common Stock 821 $0.00 5,454.0000 19,954,495 17.72% 0.00%
Oct. 9, 2025 KIAMILEV PHENIX Q. VP, GC & Chief Compliance Ofcr A Common Stock 972 $0.00 3,988.0000 19,954,495 32.23% 0.00%
Oct. 9, 2025 KIAMILEV PHENIX Q. VP, GC & Chief Compliance Ofcr A Common Stock 821 $0.00 4,809.0000 19,954,495 20.59% 0.00%
Oct. 9, 2025 HYZER SARA KATHLEEN VP, Finance & CFO A Common Stock 1751 $0.00 5,828.0000 19,954,495 42.95% 0.01%
Oct. 9, 2025 HYZER SARA KATHLEEN VP, Finance & CFO A Common Stock 895 $0.00 6,723.0000 19,954,495 15.36% 0.00%
Oct. 9, 2025 Brass Steven A President and CEO A Common Stock 7783 $0.00 33,868.0000 19,954,495 29.84% 0.04%
April 11, 2025 HYZER SARA KATHLEEN VP, Finance & CFO P COMMON STOCK 256 $222.83 4,072.0000 19,940,370 6.71% 0.00%
Dec. 12, 2024 Saunders Anne Not found A Common Stock 412 $0.00 2,758.0000 19,940,370 17.56% 0.00%
Dec. 12, 2024 Etchart Eric Not found A Common Stock 412 $0.00 7,601.0000 19,940,370 5.73% 0.00%
Dec. 12, 2024 PENDARVIS DAVID Not found A Common Stock 412 $0.00 5,346.0000 19,940,370 8.35% 0.00%
Dec. 12, 2024 Magee Edward O Jr Not found A Common Stock 412 $0.00 1,916.0000 19,940,370 27.39% 0.00%
Dec. 12, 2024 Magee Edward O Jr Not found A Common Stock 93 $0.00 2,009.0000 19,940,370 4.85% 0.00%
Dec. 12, 2024 Monteagudo Graciela Not found A Common Stock 412 $0.00 2,268.0000 19,940,370 22.20% 0.00%
Dec. 12, 2024 Lee Lara L Not found A Common Stock 412 $0.00 1,898.0000 19,940,370 27.73% 0.00%
Dec. 12, 2024 Burks Cynthia Not found A Common Stock 412 $0.00 1,298.0000 19,940,370 46.50% 0.00%
Dec. 12, 2024 CARTER DANIEL T Not found A Common Stock 412 $0.00 6,212.0000 19,940,370 7.10% 0.00%
Dec. 12, 2024 MIHALIK TREVOR I Not found A Common Stock 412 $0.00 3,903.0000 19,940,370 11.80% 0.00%
Dec. 12, 2024 MIHALIK TREVOR I Not found A Common Stock 281 $0.00 4,184.0000 19,940,370 7.20% 0.00%
Dec. 12, 2024 Etchart Eric Not found A Common Stock 281 $0.00 7,882.0000 19,940,370 3.70% 0.00%
Nov. 13, 2024 NOBLE WILLIAM B Group Managing Director S Common Stock 1000 $289.70 7,999.0000 19,925,212 11.11% 0.01%
Oct. 22, 2024 Olsem Patricia Q Division President, Americas F Common Stock 326 $0.00 6,652.0000 19,925,212 4.67% 0.00%
Oct. 22, 2024 Olsem Patricia Q Division President, Americas F Common Stock 333 $0.00 6,593.0000 19,925,212 4.81% 0.00%
Oct. 22, 2024 Olsem Patricia Q Division President, Americas F Common Stock 59 $0.00 6,593.0000 19,925,212 0.89% 0.00%
Oct. 22, 2024 HYZER SARA KATHLEEN VP, Finance & CFO F Common Stock 429 $0.00 4,231.0000 19,925,212 9.21% 0.00%
Oct. 22, 2024 HYZER SARA KATHLEEN VP, Finance & CFO F Common Stock 344 $0.00 3,887.0000 19,925,212 8.13% 0.00%
Oct. 22, 2024 HYZER SARA KATHLEEN VP, Finance & CFO F Common Stock 73 $0.00 3,814.0000 19,925,212 1.88% 0.00%
Oct. 22, 2024 NOBLE WILLIAM B Group Managing Director, EIMEA F Common Stock 245 $0.00 10,074.0000 19,925,212 2.37% 0.00%
Oct. 22, 2024 NOBLE WILLIAM B Group Managing Director, EIMEA F Common Stock 204 $0.00 9,870.0000 19,925,212 2.03% 0.00%
Oct. 22, 2024 NOBLE WILLIAM B Group Managing Director, EIMEA F Common Stock 71 $0.00 9,799.0000 19,925,212 0.72% 0.00%
Oct. 22, 2024 NOBLE WILLIAM B Group Managing Director, EIMEA S Common Stock 800 $256.98 8,999.0000 19,925,212 8.16% 0.00%
Oct. 22, 2024 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec F Common Stock 255 $0.00 3,289.0000 19,925,212 7.20% 0.00%
Oct. 22, 2024 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec F Common Stock 238 $0.00 3,051.0000 19,925,212 7.24% 0.00%
Oct. 22, 2024 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec F Common Stock 38 $0.00 3,013.0000 19,925,212 1.25% 0.00%
Oct. 22, 2024 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. F Common Stock 222 $0.00 3,964.0000 19,925,212 5.30% 0.00%
Oct. 22, 2024 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. F Common Stock 140 $0.00 3,824.0000 19,925,212 3.53% 0.00%
Oct. 22, 2024 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. F Common Stock 45 $0.00 3,779.0000 19,925,212 1.18% 0.00%
Oct. 22, 2024 Brass Steven A President and CEO F Common Stock 1058 $0.00 26,303.0000 19,925,212 3.87% 0.01%
Oct. 22, 2024 Brass Steven A President and CEO F Common Stock 1672 $0.00 27,361.0000 19,925,212 5.76% 0.01%
Oct. 22, 2024 Brass Steven A President and CEO F Common Stock 253 $0.00 26,050.0000 19,925,212 0.96% 0.00%
Oct. 3, 2024 Olsem Patricia Q Division President, Americas A Common Stock 765 $0.00 7,311.0000 19,925,212 11.69% 0.00%
Oct. 3, 2024 NOBLE WILLIAM B Group Managing Director, EIMEA A Common Stock 151 $0.00 10,319.0000 19,925,212 1.49% 0.00%
Oct. 3, 2024 NOBLE WILLIAM B Group Managing Director, EIMEA A Common Stock 434 $0.00 10,168.0000 19,925,212 4.46% 0.00%
Oct. 3, 2024 NOBLE WILLIAM B Group Managing Director, EIMEA A Common Stock 441 $0.00 9,734.0000 19,925,212 4.75% 0.00%
Oct. 3, 2024 HYZER SARA KATHLEEN VP, Finance & CFO A Common Stock 144 $0.00 4,660.0000 19,925,212 3.19% 0.00%
Oct. 3, 2024 HYZER SARA KATHLEEN VP, Finance & CFO A Common Stock 677 $0.00 4,530.0000 19,925,212 17.57% 0.00%
Oct. 3, 2024 HYZER SARA KATHLEEN VP, Finance & CFO A Common Stock 1177 $0.00 3,853.0000 19,925,212 43.98% 0.01%
Oct. 3, 2024 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec A Common Stock 106 $0.00 3,544.0000 19,925,212 3.08% 0.00%
Oct. 3, 2024 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec A Common Stock 637 $0.00 2,788.0000 19,925,212 29.61% 0.00%
Oct. 3, 2024 Olsem Patricia Q Division President, Americas A Common Stock 164 $0.00 7,311.0000 19,925,212 2.29% 0.00%
Oct. 3, 2024 Olsem Patricia Q Division President, Americas A Common Stock 912 $0.00 7,147.0000 19,925,212 14.63% 0.00%
Oct. 3, 2024 Brass Steven A President and CEO A Common Stock 2086 $0.00 28,520.0000 19,925,212 7.89% 0.01%
Oct. 3, 2024 Brass Steven A President and CEO A Common Stock 498 $0.00 29,033.0000 19,925,212 1.75% 0.00%
Oct. 3, 2024 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec A Common Stock 665 $0.00 3,453.0000 19,925,212 23.85% 0.00%
Oct. 3, 2024 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. A Common Stock 637 $0.00 3,710.0000 19,925,212 20.73% 0.00%
Oct. 3, 2024 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. A Common Stock 390 $0.00 4,100.0000 19,925,212 10.51% 0.00%
Oct. 3, 2024 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. A Common Stock 125 $0.00 4,186.0000 19,925,212 3.08% 0.00%
Oct. 3, 2024 Brass Steven A President and CEO A Common Stock 5887 $0.00 26,434.0000 19,925,212 28.65% 0.03%
May 9, 2024 HYZER SARA KATHLEEN VP, Finance & CFO P Common Stock 213 $232.83 2,676.0000 19,905,815 8.65% 0.00%
April 16, 2024 Brass Steven A President and CEO P Common Stock 432 $232.22 20,547.0000 19,905,815 2.15% 0.00%
April 12, 2024 PENDARVIS DAVID Not found P Common Stock 328 $234.75 4,934.0000 19,905,815 7.12% 0.00%
Feb. 12, 2024 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. P Common Stock 182 $272.42 3,073.0000 19,905,815 6.30% 0.00%
Dec. 12, 2023 Lee Lara L Not found A Common Stock 406 $0.00 1,486.0000 19,905,815 37.59% 0.00%
Dec. 12, 2023 CARTER DANIEL T Not found A Common Stock 406 $0.00 5,800.0000 19,905,815 7.53% 0.00%
Dec. 12, 2023 Burks Cynthia Not found A Common Stock 406 $0.00 886.0000 19,905,815 84.58% 0.00%
Dec. 12, 2023 Monteagudo Graciela Not found A Common Stock 406 $0.00 1,856.0000 19,905,815 28.00% 0.00%
Dec. 12, 2023 PENDARVIS DAVID Not found A Common Stock 406 $0.00 4,606.0000 19,905,815 9.67% 0.00%
Dec. 12, 2023 Saunders Anne Not found A Common Stock 406 $0.00 2,346.0000 19,905,815 20.93% 0.00%
Dec. 12, 2023 Etchart Eric Not found A Common Stock 251 $0.00 7,189.0000 19,905,815 3.62% 0.00%
Dec. 12, 2023 Etchart Eric Not found A Common Stock 406 $0.00 6,938.0000 19,905,815 6.22% 0.00%
Dec. 12, 2023 MIHALIK TREVOR I Not found A Common Stock 251 $0.00 3,491.0000 19,905,815 7.75% 0.00%
Dec. 12, 2023 MIHALIK TREVOR I Not found A Common Stock 406 $0.00 3,240.0000 19,905,815 14.33% 0.00%
Dec. 12, 2023 Magee Edward O Jr Not found A Common Stock 125 $0.00 1,504.0000 19,905,815 9.06% 0.00%
Dec. 12, 2023 Magee Edward O Jr Not found A Common Stock 406 $0.00 1,379.0000 19,905,815 41.73% 0.00%
Dec. 12, 2023 SANDFORT GREGORY A Not found A Common Stock 251 $0.00 19,479.0000 19,905,815 1.31% 0.00%
Dec. 12, 2023 SANDFORT GREGORY A Not found A Common Stock 406 $0.00 19,228.0000 19,905,815 2.16% 0.00%
Oct. 24, 2023 NOBLE WILLIAM B Group MD, EMEA & Emerging Mkts F Common Stock 225 $0.00 9,293.0000 19,905,815 2.36% 0.00%
Oct. 24, 2023 HYZER SARA KATHLEEN VP, Finance & CFO F Common Stock 168 $0.00 2,474.0000 19,905,815 6.36% 0.00%
Oct. 24, 2023 Brass Steven A President and CEO F Common Stock 869 $0.00 20,115.0000 19,905,815 4.14% 0.00%
Oct. 24, 2023 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec F Common Stock 157 $0.00 2,151.0000 19,905,815 6.80% 0.00%
Oct. 24, 2023 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. F Common Stock 150 $0.00 2,891.0000 19,905,815 4.93% 0.00%
Oct. 24, 2023 Olsem Patricia Q Division President, Americas F Common Stock 315 $0.00 5,470.0000 19,905,815 5.45% 0.00%
Oct. 5, 2023 LINDEMAN JEFFREY G VP, Chief People, Cult. & Cap. A Common Stock 741 $0.00 3,041.0000 19,905,815 32.22% 0.00%
Oct. 5, 2023 NOBLE WILLIAM B Group MD, EMEA & Emerging Mkts A Common Stock 556 $0.00 9,454.0000 19,905,815 6.25% 0.00%
Oct. 5, 2023 Olsem Patricia Q Division President, Americas A Common Stock 964 $0.00 5,785.0000 19,905,815 20.00% 0.00%
Oct. 5, 2023 Brass Steven A President and CEO A Common Stock 4451 $0.00 20,984.0000 19,905,815 26.92% 0.02%
Oct. 5, 2023 HYZER SARA KATHLEEN VP, Finance & CFO A Common Stock 1112 $0.00 2,642.0000 19,905,815 72.68% 0.01%
Oct. 5, 2023 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec A Common Stock 803 $0.00 2,308.0000 19,905,815 53.36% 0.00%
June 14, 2023 Olsem Patricia Q Division President, Americas S Common Stock 420 $200.00 4,821.0000 19,888,807 8.01% 0.00%
April 13, 2023 Brass Steven A President and CEO P Common Stock 558 $179.08 16,533.0000 19,888,807 3.49% 0.00%
April 13, 2023 LINDEMAN JEFFREY G VP, Chief People Officer P Common Stock 543 $179.08 2,300.0000 19,888,807 30.90% 0.00%
April 13, 2023 KIAMILEV PHENIX Q. VP, General Counsel & Corp Sec P Common Stock 224 $179.08 1,505.0000 19,888,807 17.49% 0.00%
April 13, 2023 HYZER SARA KATHLEEN VP, Finance & CFO P Common Stock 168 $179.08 1,530.0000 19,888,807 12.33% 0.00%
Feb. 2, 2023 Olsem Patricia Q Division President, Americas S Common Stock 438 $180.00 5,241.0000 19,888,807 7.71% 0.00%
Jan. 18, 2023 Brass Steven A President and CEO P Common Stock 586 $170.57 15,975.0000 19,888,807 3.81% 0.00%