Wd 40 Co (WDFC) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of WDFC are Garry O Ridge (Director, 64.72K shares), Jay Rembolt (Vp, Finance, Treasurer Cfo, 44.13K shares), Steven A Brass (President And Ceo, 33.76K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Garry O Ridge 64,719 0 25 Oct, 2022
Jay Rembolt Vp, Finance, Treasurer Cfo 44,126 0 25 Oct, 2022
Steven A Brass President And Ceo 33,761 0 29 Oct, 2025
Gregory A Sandfort 19,479 0 13 Dec, 2023
Eric Etchart 9,349 0 12 Dec, 2025
William B Noble Group Managing Director 8,097 0 29 Oct, 2025
Daniel T Carter 7,817 0 12 Dec, 2025
David Pendarvis 6,898 0 06 Feb, 2026
Melissa Claassen 6,741 0 15 Dec, 2022
Richard T Clampitt Vp, General Counsel 6,734 0 26 Oct, 2021
Geoffrey Holdsworth Managing Director, Asia Pac. 6,061 0 25 Oct, 2022
Sara Kathleen Hyzer Vp, Finance Cfo 5,935 0 29 Oct, 2025
Patricia Q Olsem Division President, Americas 0 5,274 24 Oct, 2024
Patricia Q Olsem Division President, Americas 5,074 0 29 Oct, 2025
Jeffrey G Lindeman Vp, Chief People, Cult. Cap. 4,900 0 28 Oct, 2025
Phenix Q. Kiamilev Vp, Gc Chief Compliance Ofcr 0 4,303 29 Oct, 2025
Trevor I Mihalik 4,184 0 16 Dec, 2024
Phenix Q. Kiamilev Vp, General Counsel Corp Sec 3,544 0 07 Oct, 2024
Anne Saunders 3,363 0 12 Dec, 2025
Graciela Monteagudo 2,873 0 12 Dec, 2025
Edward O Jr Magee 2,613 0 12 Dec, 2025
Lara L Lee 2,503 0 12 Dec, 2025
Cynthia Burks 1,903 0 12 Dec, 2025
Rae Ann Partlo Vp, Corporate Controller 1,872 0 25 Oct, 2022
Ken Allen Plunk 515 0 19 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
18 Feb, 2026 Ken Allen Plunk Common Stock A 515 - 515 D A
05 Feb, 2026 David Pendarvis Common Stock A 424 $247.15 6,898 D P
12 Dec, 2025 Lara L Lee Common Stock A 612 - 2,503 D A
12 Dec, 2025 Cynthia Burks Common Stock A 612 - 1,903 D A
12 Dec, 2025 Daniel T Carter Common Stock A 612 - 7,817 D A
12 Dec, 2025 Anne Saunders Common Stock A 612 - 3,363 D A
12 Dec, 2025 Graciela Monteagudo Common Stock A 612 - 2,873 D A
12 Dec, 2025 Edward O Jr Magee Common Stock A 612 - 2,613 D A
12 Dec, 2025 Eric Etchart Common Stock A 612 - 8,982 D A
12 Dec, 2025 David Pendarvis Common Stock A 612 - 6,474 D A
12 Dec, 2025 Eric Etchart Common Stock A 367 - 9,349 D A
30 Oct, 2025 David Pendarvis Common Stock A 523 $196.37 5,862 D P
30 Oct, 2025 Eric Etchart Common Stock A 500 $194.02 8,370 D P
28 Oct, 2025 Steven A Brass Common Stock A 362 $200.46 33,761 D P
27 Oct, 2025 Patricia Q Olsem Common Stock D 335 - 5,475 D F
28 Oct, 2025 Sara Kathleen Hyzer Common Stock A 200 $200.46 5,935 D P
28 Oct, 2025 Phenix Q. Kiamilev Common Stock A 55 $200.46 4,303 I P
27 Oct, 2025 William B Noble Common Stock D 258 - 7,741 D F
27 Oct, 2025 William B Noble Common Stock D 316 - 8,097 D F
27 Oct, 2025 Patricia Q Olsem Common Stock D 401 - 5,074 D F