WDFC Institutional Ownership & Shareholders
WD-40 CO (WDFC) is currently held by 373 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $2.84B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WDFC tracked by InsiderSet, reporting ownership valued at approximately $505.73M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $420.92M, representing an estimated loss of -16.77% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed WDFC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Kayne Anderson Rudnick Investment Management Llc, and several other long-term asset managers with concentrated positions in WD-40 CO (WDFC).
This page ranks the largest institutional WDFC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
373
Total Reported Value
$2.84B
Largest Holder
Blackrock, Inc.
Largest Position
$505.73M
Insider Transactions (90d)
9
Latest Filing Quarter
Q2 2026
New Institutional Positions
44
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 2,075,743 | $505,734,060 | $420,919,166 | -$84,814,894 | -16.77% | |
| Vanguard Portfolio Management Llc | 0.01% | 1,075,929 | $262,139,342 | $218,176,883 | -$43,962,459 | -16.77% | |
| Kayne Anderson Rudnick Investment Management Llc | 0.48% | 629,021 | $153,254,837 | $127,552,878 | -$25,701,959 | -16.77% | |
| Vanguard Capital Management Llc | 0.00% | 604,460 | $147,270,634 | $122,572,399 | -$24,698,235 | -16.77% | |
| State Street Corp | 0.00% | 549,199 | $133,806,844 | $111,366,573 | -$22,440,271 | -16.77% | |
| Geode Capital Management, Llc | 0.01% | 441,406 | $107,558,833 | $89,508,309 | -$18,050,524 | -16.78% | |
| First Trust Advisors Lp | 0.05% | 348,519 | $84,913,172 | $70,672,683 | -$14,240,489 | -16.77% | |
| Alliancebernstein L.P. | 0.03% | 377,541 | $76,995,712 | $76,557,764 | -$437,948 | -0.57% | |
| Dimensional Fund Advisors Lp | 0.01% | 311,574 | $75,913,658 | $63,180,976 | -$12,732,682 | -16.77% | |
| Ameriprise Financial Inc | 0.01% | 298,710 | $72,777,800 | $60,572,414 | -$12,205,386 | -16.77% | |
| Thrivent Financial For Lutherans | 0.11% | 275,985 | $67,241,000 | $55,964,238 | -$11,276,762 | -16.77% | |
| Morgan Stanley | 0.00% | 252,684 | $61,564,717 | $51,239,262 | -$10,325,455 | -16.77% | |
| Goldman Sachs Group Inc | 0.01% | 237,838 | $57,946,750 | $48,228,790 | -$9,717,960 | -16.77% | |
| Geneva Capital Management Llc | 1.24% | 222,836 | $54,291,764 | $45,186,684 | -$9,105,080 | -16.77% | |
| American Century Companies Inc | 0.02% | 212,756 | $51,836,479 | $43,142,662 | -$8,693,817 | -16.77% | |
| Two Sigma Investments, Lp | 0.04% | 205,314 | $50,022,703 | $41,633,573 | -$8,389,130 | -16.77% | |
| Ophir Asset Management Pty Ltd | 4.05% | 202,300 | $49,288,372 | $41,022,394 | -$8,265,978 | -16.77% | |
| Royce & Associates Lp | 0.36% | 185,690 | $45,241,512 | $37,654,218 | -$7,587,294 | -16.77% | |
| Renaissance Technologies LLC | Jim Simons | 0.06% | 176,076 | $42,899,157 | $35,704,691 | -$7,194,466 | -16.77% |
| Northern Trust Corp | 0.00% | 157,943 | $38,481,232 | $32,027,682 | -$6,453,550 | -16.77% | |
| Charles Schwab Investment Management Inc | 0.01% | 154,213 | $37,572,455 | $31,271,312 | -$6,301,143 | -16.77% | |
| Conestoga Capital Advisors, Llc | 0.67% | 126,199 | $30,747,195 | $25,590,633 | -$5,156,562 | -16.77% | |
| Bank Of New York Mellon Corp | 0.00% | 119,691 | $29,161,511 | $24,270,941 | -$4,890,570 | -16.77% | |
| Nuveen, Llc | 0.01% | 103,823 | $25,295,199 | $21,053,228 | -$4,241,971 | -16.77% | |
| Vanguard Fiduciary Trust Co | 0.01% | 96,780 | $23,579,479 | $19,625,048 | -$3,954,431 | -16.77% | |
| Natixis Advisors, Llc | 0.02% | 80,653 | $19,650,000 | $16,354,815 | -$3,295,185 | -16.77% | |
| Jones Financial Companies Lllp | 0.01% | 74,740 | $18,559,370 | $15,155,777 | -$3,403,593 | -18.34% | |
| Aqr Capital Management Llc | 0.01% | 76,079 | $18,535,791 | $15,427,300 | -$3,108,491 | -16.77% | |
| Principal Financial Group Inc | 0.01% | 75,672 | $18,436,726 | $15,344,768 | -$3,091,958 | -16.77% | |
| Raymond James Financial Inc | 0.00% | 75,146 | $18,308,532 | $15,238,106 | -$3,070,426 | -16.77% | |
| Wells Fargo & Company/Mn | 0.00% | 71,894 | $17,516,287 | $14,578,665 | -$2,937,622 | -16.77% | |
| Citadel Advisors Llc | 0.01% | 55,775 | $13,589,021 | $11,310,055 | -$2,278,967 | -16.77% | |
| Invesco Ltd. | 0.00% | 52,053 | $12,682,194 | $10,555,307 | -$2,126,887 | -16.77% | |
| Public Sector Pension Investment Board | 0.03% | 46,176 | $11,250,321 | $9,363,569 | -$1,886,752 | -16.77% | |
| Jpmorgan Chase & Co | 0.00% | 44,838 | $11,153,357 | $9,092,250 | -$2,061,107 | -18.48% | |
| Envestnet Asset Management Inc | 0.00% | 43,364 | $10,565,298 | $8,793,352 | -$1,771,946 | -16.77% | |
| Ceredex Value Advisors Llc | 0.26% | 37,575 | $9,154,773 | $7,619,459 | -$1,535,315 | -16.77% | |
| Gamco Investors, Inc. Et Al | 0.08% | 37,500 | $9,136,500 | $7,604,250 | -$1,532,250 | -16.77% | |
| Rhumbline Advisers | 0.01% | 37,252 | $9,076,047 | $7,553,961 | -$1,522,086 | -16.77% | |
| Jacobs Levy Equity Management, Inc | 0.03% | 36,186 | $8,816,357 | $7,337,797 | -$1,478,560 | -16.77% | |
| Bank Of America Corp | 0.00% | 35,182 | $8,571,801 | $7,134,206 | -$1,437,595 | -16.77% | |
| Drh Investments, Inc. | 6.59% | 34,157 | $8,322,011 | $6,926,356 | -$1,395,655 | -16.77% | |
| Teacher Retirement System Of Texas | 0.02% | 31,978 | $7,791,120 | $6,484,499 | -$1,306,621 | -16.77% | |
| Proshare Advisors Llc | 0.01% | 31,696 | $7,722,414 | $6,427,315 | -$1,295,099 | -16.77% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 37,475 | $7,642,651 | $7,599,181 | -$43,471 | -0.57% | |
| Kbc Group Nv | 0.02% | 30,944 | $7,539,000 | $6,274,824 | -$1,264,176 | -16.77% | |
| Gcq Funds Management Pty Ltd | 1.04% | 30,749 | $7,491,686 | $6,235,282 | -$1,256,404 | -16.77% | |
| D. E. Shaw & Co., Inc. | 0.00% | 30,702 | $7,480,235 | $6,225,752 | -$1,254,483 | -16.77% | |
| Legal & General Group Plc | 0.00% | 30,372 | $7,399,834 | $6,158,834 | -$1,241,000 | -16.77% | |
| Ubs Group Ag | 0.00% | 29,190 | $7,111,852 | $5,919,148 | -$1,192,704 | -16.77% |
Frequently asked questions about WDFC
Who are the largest institutional holders of WDFC?
The largest institutional holders of WDFC reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Portfolio Management Llc, Kayne Anderson Rudnick Investment Management Llc, Vanguard Capital Management Llc, and State Street Corp. InsiderSet ranks institutional holders by their latest reported WDFC position.
What is WDFC institutional ownership?
This page tracks WDFC positions reported by institutional investment managers through SEC Form 13F. WD-40 CO (WDFC) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own WDFC?
InsiderSet currently tracks 373 institutional managers reporting WDFC holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of WDFC shareholders.
How much WDFC stock do institutions own?
Institutional investment managers disclosed approximately $2.84B in WDFC holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was WDFC institutional ownership last updated?
The latest WDFC institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional WDFC holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its WDFC position after the reporting date.
Are institutions buying or selling WDFC?
Institutional buying and selling can be analyzed by comparing WDFC positions across consecutive 13F reporting periods. InsiderSet's WDFC Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View WDFC ownership changes.
How has WDFC institutional ownership changed over time?
InsiderSet tracks WDFC institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.