WD-40 CO (WDFC) Top 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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $2.32B 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 $411.95M in its March 31, 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 $456.01M, representing an estimated gain of +10.69% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 59% 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
374
Total Reported Value
$2.32B
Largest Holder
Blackrock, Inc.
Largest Position
$411.95M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
55
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% | 2,019,975 | $411,953,615 | $456,009,356 | +$44,055,741 | +10.69% | |
| Vanguard Portfolio Management Llc | 0.01% | 1,038,139 | $211,718,068 | $234,359,879 | +$22,641,811 | +10.69% | |
| Kayne Anderson Rudnick Investment Management Llc | 0.38% | 634,334 | $129,366,210 | $143,200,901 | +$13,834,691 | +10.69% | |
| Vanguard Capital Management Llc | 0.00% | 605,654 | $123,517,077 | $136,726,391 | +$13,209,314 | +10.69% | |
| State Street Corp | 0.00% | 526,402 | $107,354,424 | $118,835,252 | +$11,480,828 | +10.69% | |
| Alliancebernstein L.P. | 0.03% | 469,536 | $92,451,638 | $105,997,752 | +$13,546,114 | +14.65% | |
| First Trust Advisors Lp | 0.06% | 411,312 | $83,882,968 | $92,853,684 | +$8,970,716 | +10.69% | |
| Geode Capital Management, Llc | 0.01% | 407,471 | $83,112,698 | $91,986,578 | +$8,873,880 | +10.68% | |
| Morgan Stanley | 0.00% | 304,784 | $62,158,132 | $68,804,988 | +$6,646,856 | +10.69% | |
| Dimensional Fund Advisors Lp | 0.01% | 294,277 | $60,015,034 | $66,433,033 | +$6,417,999 | +10.69% | |
| Geneva Capital Management Llc | 1.22% | 282,449 | $57,602,721 | $63,762,862 | +$6,160,141 | +10.69% | |
| Ameriprise Financial Inc | 0.01% | 245,819 | $50,128,657 | $55,493,639 | +$5,364,982 | +10.70% | |
| Renaissance Technologies LLC | Jim Simons | 0.06% | 203,476 | $41,496,895 | $45,934,707 | +$4,437,812 | +10.69% |
| Conestoga Capital Advisors, Llc | 0.77% | 190,200 | $38,789,447 | $42,937,650 | +$4,148,203 | +10.69% | |
| Royce & Associates Lp | 0.36% | 180,847 | $36,881,937 | $40,826,210 | +$3,944,273 | +10.69% | |
| Charles Schwab Investment Management Inc | 0.00% | 152,259 | $31,051,700 | $34,372,469 | +$3,320,769 | +10.69% | |
| Northern Trust Corp | 0.00% | 146,443 | $29,865,586 | $33,059,507 | +$3,193,921 | +10.69% | |
| Two Sigma Investments, Lp | 0.02% | 121,810 | $24,841,931 | $27,498,608 | +$2,656,677 | +10.69% | |
| Bank Of New York Mellon Corp | 0.00% | 118,568 | $24,180,572 | $26,766,726 | +$2,586,154 | +10.70% | |
| Marshall Wace, Llp | 0.03% | 118,388 | $24,144,050 | $26,726,091 | +$2,582,041 | +10.69% | |
| Ophir Asset Management Pty Ltd | 2.51% | 105,755 | $21,567,675 | $23,874,191 | +$2,306,516 | +10.69% | |
| Nordea Investment Management Ab | 0.02% | 100,932 | $20,591,138 | $22,785,399 | +$2,194,261 | +10.66% | |
| Barclays Plc | 0.01% | 98,333 | $20,054,032 | $22,198,675 | +$2,144,643 | +10.69% | |
| Vanguard Fiduciary Trust Co | 0.00% | 93,779 | $19,125,289 | $21,170,609 | +$2,045,320 | +10.69% | |
| Goldman Sachs Group Inc | 0.00% | 86,338 | $17,607,861 | $19,490,804 | +$1,882,943 | +10.69% | |
| Nuveen, Llc | 0.00% | 86,145 | $17,568,411 | $19,447,234 | +$1,878,823 | +10.69% | |
| Jane Street Group, Llc | 0.02% | 80,221 | $16,360,271 | $18,109,891 | +$1,749,620 | +10.69% | |
| Principal Financial Group Inc | 0.01% | 74,995 | $15,294,481 | $16,930,121 | +$1,635,640 | +10.69% | |
| Raymond James Financial Inc | 0.00% | 72,495 | $14,766,346 | $16,365,746 | +$1,599,400 | +10.83% | |
| Aqr Capital Management Llc | 0.01% | 70,605 | $14,399,148 | $15,939,079 | +$1,539,931 | +10.69% | |
| Jacobs Levy Equity Management, Inc | 0.06% | 67,870 | $13,841,408 | $15,321,653 | +$1,480,245 | +10.69% | |
| Millennium Management Llc | 0.01% | 66,223 | $13,505,519 | $14,949,842 | +$1,444,323 | +10.69% | |
| Invesco Ltd. | 0.00% | 64,800 | $13,215,313 | $14,628,600 | +$1,413,287 | +10.69% | |
| D. E. Shaw & Co., Inc. | 0.01% | 63,563 | $12,963,038 | $14,349,347 | +$1,386,309 | +10.69% | |
| Citadel Advisors Llc | 0.01% | 56,907 | $11,605,614 | $12,846,755 | +$1,241,141 | +10.69% | |
| Wells Fargo & Company/Mn | 0.00% | 56,265 | $11,474,700 | $12,701,824 | +$1,227,124 | +10.69% | |
| Jones Financial Companies Lllp | 0.01% | 56,996 | $11,468,573 | $12,866,847 | +$1,398,274 | +12.19% | |
| Ubs Group Ag | 0.00% | 50,153 | $10,228,202 | $11,322,040 | +$1,093,838 | +10.69% | |
| Public Sector Pension Investment Board | 0.03% | 48,246 | $9,839,289 | $10,891,535 | +$1,052,246 | +10.69% | |
| Bank Of America Corp | 0.00% | 42,888 | $8,746,618 | $9,681,966 | +$935,348 | +10.69% | |
| Envestnet Asset Management Inc | 0.00% | 42,790 | $8,726,631 | $9,659,843 | +$933,212 | +10.69% | |
| Rhumbline Advisers | 0.01% | 41,543 | $8,472,251 | $9,378,332 | +$906,081 | +10.69% | |
| Gamco Investors, Inc. Et Al | 0.08% | 37,500 | $7,647,750 | $8,465,625 | +$817,875 | +10.69% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 37,475 | $7,642,651 | $8,459,981 | +$817,330 | +10.69% | |
| Drh Investments, Inc. | 6.13% | 37,004 | $7,546,596 | $8,353,653 | +$807,057 | +10.69% | |
| Voloridge Investment Management, Llc | 0.03% | 36,584 | $7,460,941 | $8,258,838 | +$797,897 | +10.69% | |
| Squarepoint Ops Llc | 0.02% | 35,733 | $7,287,388 | $8,066,725 | +$779,337 | +10.69% | |
| Teacher Retirement System Of Texas | 0.03% | 34,106 | $6,955,577 | $7,699,430 | +$743,853 | +10.69% | |
| Gcq Funds Management Pty Ltd | 0.86% | 31,628 | $6,450,214 | $7,140,021 | +$689,807 | +10.69% | |
| Legal & General Group Plc | 0.00% | 31,617 | $6,447,973 | $7,137,538 | +$689,565 | +10.69% |
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.