Who owns WD 40 CO?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of WDFC from SEC Form 13F filings across 388 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 388 institutions disclosed 11.8M shares of WD 40 CO worth $2.85B — about 87.4% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
388
13F holders
$2.85B
value, 2026 filers
87.4%
of shares outstanding (11.8M sh)
58
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of WDFC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.1M | $505.7M | 0.0% | 15.4% | +2.8% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.1M | $262.1M | 0.0% | 8% | +3.6% |
| 3 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 629,021 | $153.3M | 0.5% | 4.7% | -0.8% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 604,460 | $147.3M | 0.0% | 4.5% | -0.2% |
| 5 | STATE STREET CORP | 549,199 | $133.8M | 0.0% | 4.1% | +4.3% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 441,406 | $107.6M | 0.0% | 3.3% | +8.3% |
| 7 | ALLIANCEBERNSTEIN L.P. | 377,541 | $77.0M | 0.0% | 2.8% | -19.6% |
| 8 | FIRST TRUST ADVISORS LP | 348,519 | $84.9M | 0.0% | 2.6% | -15.3% |
| 9 | DIMENSIONAL FUND ADVISORS LP | 311,574 | $75.9M | 0.0% | 2.3% | +5.9% |
| 10 | AMERIPRISE FINANCIAL INC | 298,710 | $72.8M | 0.0% | 2.2% | +21.5% |
| 11 | Thrivent Financial for Lutherans | 275,985 | $67.2M | 0.1% | 2.1% | -0.2% |
| 12 | MORGAN STANLEY | 252,684 | $61.6M | 0.0% | 1.9% | -17.1% |
| 13 | GOLDMAN SACHS GROUP INC | 237,838 | $57.9M | 0.0% | 1.8% | +175.5% |
| 14 | GENEVA CAPITAL MANAGEMENT LLC | 222,836 | $54.3M | 1.2% | 1.7% | -21.1% |
| 15 | AMERICAN CENTURY COMPANIES INC | 212,756 | $51.8M | 0.0% | 1.6% | +1027.1% |
| 16 | TWO SIGMA INVESTMENTS, LP | 205,314 | $50.0M | 0.0% | 1.5% | +68.6% |
| 17 | Ophir Asset Management Pty Ltd | 202,300 | $49.3M | 4.1% | 1.5% | +91.3% |
| 18 | ROYCE & ASSOCIATES LP | 185,690 | $45.2M | 0.4% | 1.4% | +2.7% |
| 19 | RENAISSANCE TECHNOLOGIES LLC | 176,076 | $42.9M | 0.1% | 1.3% | -13.5% |
| 20 | NORTHERN TRUST CORP | 157,943 | $38.5M | 0.0% | 1.2% | +7.9% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 154,213 | $37.6M | 0.0% | 1.1% | +1.3% |
| 22 | Conestoga Capital Advisors, LLC | 126,199 | $30.7M | 0.7% | 0.9% | -33.6% |
| 23 | Bank of New York Mellon Corp | 119,691 | $29.2M | 0.0% | 0.9% | +0.9% |
| 24 | Nuveen, LLC | 103,823 | $25.3M | 0.0% | 0.8% | +20.5% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 96,780 | $23.6M | 0.0% | 0.7% | +3.2% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.