WD-40 CO (WDFC) Institutional Shareholders
WD-40 CO (WDFC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.84B in WDFC holdings during the latest filing period.
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 $392.92M, representing an estimated loss of -22.31% 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
375
Total Reported Value
$2.84B
Largest Holder
Blackrock, Inc.
Largest Position
$505.73M
Insider Transactions (90d)
2
Latest Filing Quarter
Q2 2026
New Institutional Positions
46
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 | $392,917,392 | -$112,816,668 | -22.31% | |
| Vanguard Portfolio Management Llc | 0.01% | 1,075,929 | $262,139,342 | $203,662,600 | -$58,476,742 | -22.31% | |
| Kayne Anderson Rudnick Investment Management Llc | 0.48% | 629,021 | $153,254,837 | $119,067,385 | -$34,187,452 | -22.31% | |
| Vanguard Capital Management Llc | 0.00% | 604,460 | $147,270,634 | $114,418,233 | -$32,852,401 | -22.31% | |
| State Street Corp | 0.00% | 549,199 | $133,806,844 | $103,957,879 | -$29,848,965 | -22.31% | |
| Geode Capital Management, Llc | 0.01% | 441,406 | $107,558,833 | $83,553,742 | -$24,005,091 | -22.32% | |
| First Trust Advisors Lp | 0.05% | 348,519 | $84,913,172 | $65,971,162 | -$18,942,010 | -22.31% | |
| Alliancebernstein L.P. | 0.03% | 377,541 | $76,995,712 | $71,464,736 | -$5,530,976 | -7.18% | |
| Dimensional Fund Advisors Lp | 0.01% | 311,574 | $75,913,658 | $58,977,842 | -$16,935,816 | -22.31% | |
| Ameriprise Financial Inc | 0.01% | 298,710 | $72,777,800 | $56,542,816 | -$16,234,984 | -22.31% | |
| Thrivent Financial For Lutherans | 0.11% | 275,985 | $67,241,000 | $52,241,201 | -$14,999,799 | -22.31% | |
| Morgan Stanley | 0.00% | 252,684 | $61,564,717 | $47,830,554 | -$13,734,163 | -22.31% | |
| Goldman Sachs Group Inc | 0.01% | 237,838 | $57,946,750 | $45,020,355 | -$12,926,395 | -22.31% | |
| Geneva Capital Management Llc | 1.24% | 222,836 | $54,291,764 | $42,180,626 | -$12,111,138 | -22.31% | |
| American Century Companies Inc | 0.02% | 212,756 | $51,836,479 | $40,272,583 | -$11,563,896 | -22.31% | |
| Two Sigma Investments, Lp | 0.04% | 205,314 | $50,022,703 | $38,863,887 | -$11,158,816 | -22.31% | |
| Ophir Asset Management Pty Ltd | 4.05% | 202,300 | $49,288,372 | $38,293,367 | -$10,995,005 | -22.31% | |
| Royce & Associates Lp | 0.36% | 185,690 | $45,241,512 | $35,149,260 | -$10,092,252 | -22.31% | |
| Renaissance Technologies LLC | Jim Simons | 0.06% | 176,076 | $42,899,157 | $33,329,426 | -$9,569,731 | -22.31% |
| Northern Trust Corp | 0.00% | 157,943 | $38,481,232 | $29,897,030 | -$8,584,202 | -22.31% | |
| Charles Schwab Investment Management Inc | 0.01% | 154,213 | $37,572,455 | $29,190,979 | -$8,381,476 | -22.31% | |
| Conestoga Capital Advisors, Llc | 0.67% | 126,199 | $30,747,195 | $23,888,209 | -$6,858,986 | -22.31% | |
| Bank Of New York Mellon Corp | 0.00% | 119,691 | $29,161,511 | $22,656,309 | -$6,505,202 | -22.31% | |
| Nuveen, Llc | 0.01% | 103,823 | $25,295,199 | $19,652,656 | -$5,642,543 | -22.31% | |
| Vanguard Fiduciary Trust Co | 0.01% | 96,780 | $23,579,479 | $18,319,486 | -$5,259,993 | -22.31% | |
| Natixis Advisors, Llc | 0.02% | 80,653 | $19,650,000 | $15,266,806 | -$4,383,194 | -22.31% | |
| Jones Financial Companies Lllp | 0.01% | 74,740 | $18,559,370 | $14,147,535 | -$4,411,835 | -23.77% | |
| Aqr Capital Management Llc | 0.01% | 76,079 | $18,535,791 | $14,400,994 | -$4,134,797 | -22.31% | |
| Principal Financial Group Inc | 0.01% | 75,672 | $18,436,726 | $14,323,953 | -$4,112,773 | -22.31% | |
| Raymond James Financial Inc | 0.00% | 75,146 | $18,308,532 | $14,224,386 | -$4,084,146 | -22.31% | |
| Wells Fargo & Company/Mn | 0.00% | 71,894 | $17,516,287 | $13,608,815 | -$3,907,472 | -22.31% | |
| Citadel Advisors Llc | 0.01% | 55,775 | $13,589,021 | $10,557,650 | -$3,031,371 | -22.31% | |
| Invesco Ltd. | 0.00% | 52,053 | $12,682,194 | $9,853,112 | -$2,829,082 | -22.31% | |
| Public Sector Pension Investment Board | 0.03% | 46,176 | $11,250,321 | $8,740,655 | -$2,509,666 | -22.31% | |
| Jpmorgan Chase & Co | 0.00% | 44,838 | $11,153,357 | $8,487,385 | -$2,665,972 | -23.90% | |
| Envestnet Asset Management Inc | 0.00% | 43,364 | $10,565,298 | $8,208,372 | -$2,356,926 | -22.31% | |
| Ceredex Value Advisors Llc | 0.26% | 37,575 | $9,154,773 | $7,112,572 | -$2,042,201 | -22.31% | |
| Gamco Investors, Inc. Et Al | 0.08% | 37,500 | $9,136,500 | $7,098,375 | -$2,038,125 | -22.31% | |
| Rhumbline Advisers | 0.01% | 37,252 | $9,076,047 | $7,051,431 | -$2,024,616 | -22.31% | |
| Jacobs Levy Equity Management, Inc | 0.03% | 36,186 | $8,816,357 | $6,849,648 | -$1,966,709 | -22.31% | |
| Bank Of America Corp | 0.00% | 35,182 | $8,571,801 | $6,659,601 | -$1,912,200 | -22.31% | |
| Drh Investments, Inc. | 6.59% | 34,157 | $8,322,011 | $6,465,579 | -$1,856,432 | -22.31% | |
| Teacher Retirement System Of Texas | 0.02% | 31,978 | $7,791,120 | $6,053,116 | -$1,738,004 | -22.31% | |
| Proshare Advisors Llc | 0.01% | 31,696 | $7,722,414 | $5,999,736 | -$1,722,678 | -22.31% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 37,475 | $7,642,651 | $7,093,643 | -$549,008 | -7.18% | |
| Kbc Group Nv | 0.02% | 30,944 | $7,539,000 | $5,857,390 | -$1,681,610 | -22.31% | |
| Gcq Funds Management Pty Ltd | 1.04% | 30,749 | $7,491,686 | $5,820,478 | -$1,671,208 | -22.31% | |
| D. E. Shaw & Co., Inc. | 0.00% | 30,702 | $7,480,235 | $5,811,582 | -$1,668,653 | -22.31% | |
| Legal & General Group Plc | 0.00% | 30,372 | $7,399,834 | $5,749,116 | -$1,650,718 | -22.31% | |
| Ubs Group Ag | 0.00% | 29,190 | $7,111,852 | $5,525,375 | -$1,586,477 | -22.31% |
Frequently asked questions about WDFC
Who owns the most WDFC stock?
The largest holders of WDFC are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for WD-40 CO (WDFC).
Is WDFC widely held by superinvestors?
Many widely followed stocks like WDFC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly WDFC is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.