WD-40 Company
WD-40 Company (WDFC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WDFC · as of Sep 30, 2025
Ownership Breakdown
383
Institutional Holders
▼ 1 vs Q2
$2.28B
Total Inst. Value
▼ $457.49M vs Q2
13.46M
Shares Outstanding
freeFloat 99.48%
11.52M
13F Shares Held
▼ 630,818 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WDFC largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. miscellaneous chemical products | 1.99M | 14.66% | 14.66% | $392.35B | Nov 12, 2025 | ▼ 113.3K |
VANGUARD GROUP INC miscellaneous chemical products | 1.60M | 11.84% | 11.84% | $316.77B | Nov 7, 2025 | ▼ 20.6K |
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC miscellaneous chemical products | 553.2K | 4.08% | 4.08% | $109.32B | Nov 13, 2025 | ▼ 10.8K |
ALLIANCEBERNSTEIN L.P. miscellaneous chemical products | 533.7K | 3.94% | 3.94% | $105.47B | Nov 14, 2025 | ▲ 32.3K |
STATE STREET CORP miscellaneous chemical products | 520.0K | 3.84% | 3.84% | $102.75B | Nov 14, 2025 | ▼ 4.8K |
GEODE CAPITAL MANAGEMENT, LLC miscellaneous chemical products | 403.0K | 2.98% | 2.98% | $79.65B | Nov 12, 2025 | ▲ 3.9K |
CONESTOGA CAPITAL ADVISORS, LLC miscellaneous chemical products | 310.6K | 2.29% | 2.29% | $61.38B | Oct 24, 2025 | ▼ 8.5K |
AMERIPRISE FINANCIAL INC miscellaneous chemical products | 304.2K | 2.25% | 2.25% | $60.12B | Nov 14, 2025 | ▼ 29.3K |
RENAISSANCE TECHNOLOGIES LLC miscellaneous chemical products | 285.6K | 2.11% | 2.11% | $56.43B | Nov 13, 2025 | ▲ 7.3K |
DIMENSIONAL FUND ADVISORS LP miscellaneous chemical products | 284.1K | 2.10% | 2.10% | $56.14B | Nov 12, 2025 | ▲ 5.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
25
Increased
+607.7K shares0
New Positions
first time holders23
Decreased
−521.8K shares0
Sold Out
fully exitedNet shares change (top 50)
+85.8K
+607.7K / −521.8K
Net new holders
+2
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WDFC insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Plunk Ken Allen director | Feb 18, 2026 | Award | 515 | — | — | 515 | Form 4 ↗ |
PENDARVIS DAVID director | Feb 5, 2026 | Purchase | 424 | $247.15 | $104.8K | 6.9K | Form 4 ↗ |
Magee Edward O Jr director | Dec 12, 2025 | Award | 612 | — | — | 2.6K | Form 4 ↗ |
Etchart Eric director | Dec 12, 2025 | Award | 367 | — | — | 9.3K | Form 4 ↗ |
Etchart Eric director | Dec 12, 2025 | Award | 612 | — | — | 9.0K | Form 4 ↗ |
CARTER DANIEL T director | Dec 12, 2025 | Award | 612 | — | — | 7.8K | Form 4 ↗ |
PENDARVIS DAVID director | Dec 12, 2025 | Award | 612 | — | — | 6.5K | Form 4 ↗ |
Lee Lara L director | Dec 12, 2025 | Award | 612 | — | — | 2.5K | Form 4 ↗ |
Saunders Anne director | Dec 12, 2025 | Award | 612 | — | — | 3.4K | Form 4 ↗ |
Monteagudo Graciela director | Dec 12, 2025 | Award | 612 | — | — | 2.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
WD-40 Company (WDFC) is primarily owned by institutional investors, who hold approximately 85.6% of total shares outstanding. Company insiders own approximately 0.52%, while retail and public investors account for the remaining 13.85%.
The largest institutional shareholder of WD-40 Company is BLACKROCK, INC., holding approximately 1.99 million shares — equal to 14.66% of outstanding shares — as of September 30, 2025.
A total of 383 institutional investors currently hold WDFC stock, with a combined institutional value of approximately $2.28 billion as of the most recent 13F filing period.
Frequently asked questions
WDFC ownershipWD-40 Company (WDFC) is primarily owned by institutional investors, who hold approximately 85.6% of shares. The largest shareholder is BLACKROCK, INC. with a 14.66% stake. Company insiders hold 0.52%. Data sourced from SEC Form 13F as of September 30, 2025.