WD 40 CO
Total Trades
24
Buys
18
Sells
6
Largest Trade
$100K–$500K
Insiders
10
Institutional Funds
317
Inst. Value
$1M+
Activist Filings
12
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| PENDARVIS DAVID | Director | BUY | $100K–$500K | 424 | $247.15 | Feb 6, 2026 |
| Etchart Eric | Director | BUY | $50K–$100K | 500 | $194.02 | Oct 30, 2025 |
| PENDARVIS DAVID | Director | BUY | $100K–$500K | 523 | $196.37 | Oct 30, 2025 |
| KIAMILEV PHENIX Q. | VP | BUY | $1K–$15K | 55 | $200.46 | Oct 30, 2025 |
| Brass Steven A | President and CEO | BUY | $50K–$100K | 362 | $200.46 | Oct 30, 2025 |
| HYZER SARA KATHLEEN | VP, Finance & CFO | BUY | $15K–$50K | 200 | $200.46 | Oct 30, 2025 |
| CARTER DANIEL T | Director | BUY | $100K–$500K | 1K | $199.37 | Oct 27, 2025 |
| HYZER SARA KATHLEEN | VP, Finance & CFO | BUY | $50K–$100K | 256 | $222.83 | Apr 15, 2025 |
| NOBLE WILLIAM B | Group Managing Dir… | SELL | $100K–$500K | 1K | $289.70 | Nov 15, 2024 |
| NOBLE WILLIAM B | Group Managing Director | SELL | $100K–$500K | 800 | $256.98 | Oct 24, 2024 |
| Brass Steven A | President and CEO | BUY | $100K–$500K | 432 | $232.22 | Apr 17, 2024 |
| PENDARVIS DAVID | Director | BUY | $50K–$100K | 328 | $234.75 | Apr 12, 2024 |
| LINDEMAN JEFFREY G | VP | BUY | $15K–$50K | 182 | $272.42 | Feb 13, 2024 |
| Olsem Patricia Q | Division President | SELL | $50K–$100K | 420 | $200.00 | Jun 16, 2023 |
| LINDEMAN JEFFREY G | VP | BUY | $50K–$100K | 543 | $179.08 | Apr 14, 2023 |
| Brass Steven A | President and CEO | BUY | $50K–$100K | 558 | $179.08 | Apr 14, 2023 |
| HYZER SARA KATHLEEN | VP, Finance & CFO | BUY | $15K–$50K | 168 | $179.08 | Apr 14, 2023 |
| KIAMILEV PHENIX Q. | VP | BUY | $15K–$50K | 224 | $179.08 | Apr 14, 2023 |
| Olsem Patricia Q | Division President | SELL | $50K–$100K | 438 | $180.00 | Feb 3, 2023 |
| Brass Steven A | President and CEO | BUY | $50K–$100K | 586 | $170.57 | Jan 19, 2023 |
| Olsem Patricia Q | Division President | SELL | $100K–$500K | 625 | $165.00 | Nov 15, 2022 |
| Brass Steven A | President and CEO | BUY | $50K–$100K | 632 | $158.16 | Oct 27, 2022 |
| HOLDSWORTH GEOFFREY | Managing Director | SELL | $100K–$500K | 3K | $152.12 | Oct 26, 2022 |
| Etchart Eric | Director | BUY | $50K–$100K | 500 | $177.60 | Aug 6, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 317 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. | 529K | $1M+ | SH |
| STATE STREET CORP | 520K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 361K | $1M+ | SH |
| Conestoga Capital Advisors, LLC | 297K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 271K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 252K | $1M+ | SH |
| GCQ FUNDS MANAGEMENT PTY Ltd | 221K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 165K | $1M+ | SH |
| GENEVA CAPITAL MANAGEMENT LLC | 163K | $1M+ | SH |
| BALYASNY ASSET MANAGEMENT L.P. | 149K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 147K | $1M+ | SH |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 99K | $1M+ | SH |
| MARSHALL WACE, LLP | 87K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 81K | $1M+ | SH |
| BARCLAYS PLC | 67K | $1M+ | SH |
| NATIXIS ADVISORS, LLC | 57K | $1M+ | SH |
| Squarepoint Ops LLC | 55K | $1M+ | SH |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 54K | $1M+ | SH |
| MORGAN STANLEY | 48K | $1M+ | SH |
| PUBLIC SECTOR PENSION INVESTMENT BOARD | 47K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Oct 17, 2025
14.3%
1.9M shares
SC 13G/A · May 14, 2025
2.4%
324K shares
SC 13G/A · Feb 13, 2025
7.5%
1.0M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.9%
1.6M shares
Neuberger Berman Group LLC 61-1591182
SC 13G/A · Feb 12, 2024
4.7%
641K shares
SC 13G/A · Jan 22, 2024
15.4%
2.1M shares
SC 13G/A · Feb 10, 2023
6.3%
861K shares
SC 13G/A · Jan 12, 2023
12.0%
1.6M shares
SC 13G/A · Feb 11, 2022
6.6%
902K shares
SC 13G/A · Jan 27, 2022
15.3%
2.1M shares
SC 13G · Jan 25, 2022
15.3%
2.1M shares
SC 13G/A · Jan 19, 2022
12.0%
1.6M shares