Who owns WD-40 (WDFC)
Which tracked institutional funds hold WDFC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See WDFC company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
99 tracked funds added or opened WDFC while 56 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
WDFC’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in WDFC divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 360 tracked filers holding WDFC, 163 increased or opened the position and 183 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in WDFC between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 13
- Ceredex Value Advisors LLC$9M
- Holocene Advisors, LP$3M
- BOOTHBAY FUND MANAGEMENT, LLC$2M
- Jupiter Topco LLC$2M
- Brevan Howard Capital Management LP$1M
- Schonfeld Strategic Advisors LLC$803K
Full exits 31
- Thrivent Financial for Lutherans$56M
- NORDEA INVESTMENT MANAGEMENT AB$21M
- JANE STREET GROUP, LLC$16M
- NATIXIS ADVISORS, LLC$12M
- HRT FINANCIAL LP$7M
- KBC Group NV$6M
Largest adds
- BlackRock, Inc.$214M
- VANGUARD PORTFOLIO MANAGEMENT LLC$50M
- AMERICAN CENTURY COMPANIES INC$48M
- GOLDMAN SACHS GROUP INC$40M
- Ophir Asset Management Pty Ltd$28M
- STATE STREET CORP$26M
Largest trims
- NORGES BANK$36M
- MARSHALL WACE, LLP$22M
- ALLIANCEBERNSTEIN L.P.$15M
- BARCLAYS PLC$14M
- MILLENNIUM MANAGEMENT LLC$13M
- Conestoga Capital Advisors, LLC$8M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 2,075,743 | $506M | 19.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,075,929 | $262M | 9.9% | 2026-Q2 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC trimmed | 629,021 | $153M | 5.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 604,460 | $147M | 5.6% | 2026-Q2 |
| STATE STREET CORP added | 549,199 | $134M | 5.1% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 441,406 | $108M | 4.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 377,541 | $77M | 2.9% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 348,519 | $85M | 3.2% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 311,574 | $76M | 2.9% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 298,710 | $73M | 2.8% | 2026-Q2 |
| MORGAN STANLEY trimmed | 252,684 | $62M | 2.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 237,838 | $58M | 2.2% | 2026-Q2 |
| GENEVA CAPITAL MANAGEMENT LLC trimmed | 222,836 | $54M | 2.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 212,756 | $52M | 2.0% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 205,314 | $50M | 1.9% | 2026-Q2 |
| Ophir Asset Management Pty Ltd added | 202,300 | $49M | 1.9% | 2026-Q2 |
| ROYCE & ASSOCIATES LP added | 185,690 | $45M | 1.7% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 176,076 | $43M | 1.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 157,943 | $38M | 1.5% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 154,213 | $38M | 1.4% | 2026-Q2 |
| Conestoga Capital Advisors, LLC trimmed | 126,199 | $31M | 1.2% | 2026-Q2 |
| Bank of New York Mellon Corp added | 119,691 | $29M | 1.1% | 2026-Q2 |
| Nuveen, LLC added | 103,823 | $25M | 1.0% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 96,780 | $24M | 0.9% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 76,079 | $19M | 0.7% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 75,672 | $18M | 0.7% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 75,146 | $18M | 0.7% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 74,740 | $19M | 0.7% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 71,894 | $18M | 0.7% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 55,775 | $14M | 0.5% | 2026-Q2 |
| Invesco Ltd. added | 52,053 | $13M | 0.5% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 46,176 | $11M | 0.4% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 44,838 | $11M | 0.4% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 43,364 | $11M | 0.4% | 2026-Q2 |
| Ceredex Value Advisors LLC new | 37,575 | $9M | 0.3% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL | 37,500 | $9M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 37,252 | $9M | 0.3% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 36,186 | $9M | 0.3% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 35,182 | $9M | 0.3% | 2026-Q2 |
| DRH Investments, Inc. trimmed | 34,157 | $8M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 33,377 | $8M | 0.3% | 2026-Q2 |
| TEACHER RETIREMENT SYSTEM OF TEXAS trimmed | 31,978 | $8M | 0.3% | 2026-Q2 |
| ProShare Advisors LLC added | 31,696 | $8M | 0.3% | 2026-Q2 |
| GCQ FUNDS MANAGEMENT PTY Ltd trimmed | 30,749 | $7M | 0.3% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 30,702 | $7M | 0.3% | 2026-Q2 |
| Legal & General Group Plc trimmed | 30,372 | $7M | 0.3% | 2026-Q2 |
| UBS Group AG trimmed | 29,190 | $7M | 0.3% | 2026-Q2 |
| Swiss National Bank added | 27,000 | $7M | 0.2% | 2026-Q2 |
| Creative Planning trimmed | 25,587 | $6M | 0.2% | 2026-Q2 |
| BARCLAYS PLC trimmed | 25,431 | $6M | 0.2% | 2026-Q2 |
| Vest Financial, LLC trimmed | 25,019 | $6M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 22,346 | $5M | 0.2% | 2026-Q2 |
| CRAWFORD INVESTMENT COUNSEL INC added | 22,336 | $5M | 0.2% | 2026-Q2 |
| BROWN ADVISORY INC added | 21,443 | $5M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System trimmed | 21,018 | $5M | 0.2% | 2026-Q2 |
| FIFTH THIRD BANCORP trimmed | 19,824 | $5M | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 18,960 | $5M | 0.2% | 2026-Q2 |
| NORGES BANK trimmed | 18,400 | $4M | 0.2% | 2026-Q2 |
| STIFEL FINANCIAL CORP added | 18,045 | $4M | 0.2% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 17,300 | $4M | 0.2% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 17,203 | $4M | 0.2% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 16,206 | $4M | 0.1% | 2026-Q2 |
| Westhampton Capital, LLC trimmed | 16,012 | $4M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 15,238 | $4M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 13,969 | $3M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 13,962 | $3M | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 13,720 | $3M | 0.1% | 2026-Q2 |
| SCHRODER INVESTMENT MANAGEMENT GROUP trimmed | 13,718 | $3M | 0.1% | 2026-Q2 |
| LPL Financial LLC added | 13,655 | $3M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 13,389 | $3M | 0.1% | 2026-Q2 |
| Corient Private Wealth LP added | 12,360 | $3M | 0.1% | 2026-Q2 |
| Texas Yale Capital Corp. trimmed | 11,795 | $3M | 0.1% | 2026-Q2 |
| Holocene Advisors, LP added | 11,493 | $3M | 0.1% | 2026-Q2 |
| Man Group plc trimmed | 11,456 | $3M | 0.1% | 2026-Q2 |
| REIK & CO., LLC | 10,800 | $3M | 0.1% | 2026-Q2 |
| Bridgewater Associates, LP added | 10,105 | $2M | 0.1% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 10,019 | $2M | 0.1% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS added | 9,893 | $2M | 0.1% | 2026-Q2 |
| EXCHANGE TRADED CONCEPTS, LLC added | 9,867 | $2M | 0.1% | 2026-Q2 |
| GABELLI FUNDS LLC | 9,500 | $2M | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC new | 9,468 | $2M | 0.1% | 2026-Q2 |
| Mariner, LLC added | 8,878 | $2M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 8,469 | $2M | 0.1% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD | 8,200 | $2M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 7,966 | $2M | 0.1% | 2026-Q2 |
| Bridge City Capital, LLC trimmed | 7,786 | $2M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 7,664 | $2M | 0.1% | 2026-Q2 |
| DAVENPORT & Co LLC added | 7,661 | $2M | 0.1% | 2026-Q2 |
| FEDERATED HERMES, INC. | 7,628 | $2M | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 7,508 | $2M | 0.1% | 2026-Q2 |
| INTECH INVESTMENT MANAGEMENT LLC trimmed | 7,494 | $2M | 0.1% | 2026-Q2 |
| VIRGINIA RETIREMENT SYSTEMS ET Al added | 7,445 | $2M | 0.1% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 7,134 | $2M | 0.1% | 2026-Q2 |
| ALGERT GLOBAL LLC | 7,026 | $2M | 0.1% | 2026-Q2 |
| One Wealth Advisors, LLC trimmed | 6,996 | $2M | 0.1% | 2026-Q2 |
| Cetera Investment Advisers trimmed | 6,769 | $2M | 0.1% | 2026-Q2 |
| HANCOCK WHITNEY CORP trimmed | 6,722 | $2M | 0.1% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 6,719 | $2M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 6,655 | $2M | 0.1% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 6,427 | $2M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.