WD-40 Company
US ˙ NasdaqGS ˙ US9292361071

SecurityWDFC / WD-40 Company
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership294,277 shares
Latest Disclosed Value $ 60,015,034
Dimensional Fund Advisors Lp reports 2.75% increase in ownership of WDFC / WD-40 Company

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 294,277 shares of WD-40 Company (US:WDFC) valued at $60,014,851 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 286,391 shares of WD-40 Company. This represents a change in shares of 2.75% during the quarter. The current value of the position is $58,428,698 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F WD 40 COM 929236107 294,277 7,886 2.75 60,015 6.42 0.0027
2026-02-12 2025-12-31 13F WD 40 COM 929236107 286,391 2,296 0.81 56,392 0.46 0.0118
2025-11-12 2025-09-30 13F WD 40 COM 929236107 284,095 5,173 1.85 56,135 -11.76 0.0120
2025-08-12 2025-06-30 13F WD 40 COM 929236107 278,922 1,191 0.43 63,620 -6.12 0.0147
2025-05-13 2025-03-31 13F WD 40 COM 929236107 277,731 -13,006 -4.47 67,764 -3.96 0.0168
2025-02-13 2024-12-31 13F WD 40 COM 929236107 290,737 -4,079 -1.38 70,556 -7.20 0.0169
2024-11-07 2024-09-30 13F WD 40 COM 929236107 294,816 -12,281 -4.00 76,027 12.71 0.0184
2024-08-09 2024-06-30 13F WD 40 COM 929236107 307,097 5,893 1.96 67,452 -11.60 0.0176
2024-05-10 2024-03-31 13F WD 40 COM 929236107 301,204 702 0.23 76,298 6.20 0.0207
2024-02-07 2023-12-31 13F WD 40 COM 929236107 300,502 -3,238 -1.07 71,842 16.38 0.0210
2023-11-09 2023-09-30 13F WD 40 COM 929236107 303,740 9,574 3.25 61,733 11.24 0.0202
2023-08-09 2023-06-30 13F WD 40 COM 929236107 294,166 16,674 6.01 55,494 12.32 0.0177
2023-05-12 2023-03-31 13F WD 40 COM 929236107 277,492 6,061 2.23 49,407 114,797.67 0.0166
2023-02-09 2022-12-31 13F WD 40 COM 929236107 271,431 2,466 0.92 44 -99.91 0.0129
2022-11-10 2022-09-30 13F WD 40 COM 929236107 268,965 -1,783 -0.66 47,269 -13.30 0.0181
2022-08-12 2022-06-30 13F WD 40 COM 929236107 270,748 -1,964 -0.72 54,518 9.10 0.0196
2022-05-13 2022-03-31 13F WD 40 COM 929236107 272,712 -3,640 -1.32 49,970 -26.09 0.0154
2022-02-09 2021-12-31 13F WD 40 COM 929236107 276,352 -12,564 -4.35 67,607 1.09 0.0204
2021-11-12 2021-09-30 13F WD 40 COM 929236107 288,916 18,786 6.95 66,880 -3.40 0.0215
2021-08-12 2021-06-30 13F WD 40 COM 929236107 270,130 -4,916 -1.79 69,233 -17.79 0.0219
2021-05-14 2021-03-31 13F WD-40 COM 929236107 275,046 -67,878 -19.79 84,213 -7.57 0.0279
2021-03-08 2020-12-31 13F/A-2 WD-40 COM 929236107 342,924 -26,754 -7.24 91,109 30.19 0.0329
2021-02-11 2020-12-31 13F WD-40 COM 929236107 342,924 -26,754 91,109 32,903.7281
2020-11-12 2020-09-30 13F WD-40 COM 929236107 369,678 -36,175 -8.91 69,983 -13.04 0.0297
2020-08-13 2020-06-30 13F WD-40 COM 929236107 405,853 -23,002 -5.36 80,481 -6.56 0.0354
2020-05-14 2020-03-31 13F WD-40 COM 929236107 428,855 -23,266 -5.15 86,134 -1.87 0.0449
2020-02-14 2019-12-31 13F WD-40 COM 929236107 452,121 -3,467 -0.76 87,775 4.97 0.0320
2019-11-12 2019-09-30 13F WD-40 COM 929236107 455,588 -6,912 -1.49 83,619 13.68 0.0325
2019-08-13 2019-06-30 13F WD-40 COM 929236107 462,500 -2,511 -0.54 73,556 -6.65 0.0286
2019-08-12 2019-03-31 13F/A-2 WD-40 COM 929236107 465,011 -6,351 -1.35 78,792 -8.79 0.0314
2019-05-10 2019-03-31 13F WD-40 COM 929236107 465,011 -6,351 78,792
2019-02-26 2018-12-31 13F/A-1 WD-40 COM 929236107 471,362 -1,535 -0.32 86,382 6.14 0.0391
2019-02-13 2018-12-31 13F WD-40 COM 929236107 471,362 -1,535 86,382
2018-11-13 2018-09-30 13F WD-40 COM 929236107 472,897 -18,396 -3.74 81,386 13.27 0.0310
2018-08-10 2018-06-30 13F WD-40 COM 929236107 491,293 2,865 0.59 71,852 11.70 0.0286
2018-05-11 2018-03-31 13F WD-40 COM 929236107 488,428 -662 -0.14 64,326 11.46 0.0268
2018-02-12 2017-12-31 13F WD-40 COM 929236107 489,090 404 0.08 57,713 5.54 0.0239
2017-11-13 2017-09-30 13F WD-40 COM 929236107 488,686 168 0.03 54,684 1.44 0.0239
2017-08-11 2017-06-30 13F WD-40 COM 929236107 488,518 295 0.06 53,908 1.35 0.0249
2017-05-12 2017-03-31 13F WD-40 COM 929236107 488,223 -1,147 -0.23 53,192 -7.02 0.0254
2017-02-09 2016-12-31 13F WD-40 COM 929236107 489,370 -4,612 -0.93 57,207 3.01 0.0286
2016-11-10 2016-09-30 13F WD-40 COM 929236107 493,982 -8,741 -1.74 55,538 -5.94 0.0300
2016-08-09 2016-06-30 13F WD-40 COM 929236107 502,723 5,043 1.01 59,044 9.84 0.0340
2016-05-13 2016-03-31 13F WD-40 COM 929236107 497,680 10,995 2.26 53,755 11.96 0.0322
2016-02-10 2015-12-31 13F WD-40 COM 929236107 486,685 14,999 3.18 48,012 14.28 0.0299
2015-11-13 2015-09-30 13F WD-40 COM 929236107 471,686 10,691 2.32 42,013 4.56 0.0276
2015-08-14 2015-06-30 13F WD-40 COM 929236107 460,995 3,596 0.79 40,180 -0.79 0.0246
2015-05-14 2015-03-31 13F WD-40 COM 929236107 457,399 24,334 5.62 40,498 9.91 0.0256
2015-02-06 2014-12-31 13F WD-40 COM 929236107 433,065 3,765 0.88 36,846 26.29 0.0242
2014-11-13 2014-09-30 13F WD-40 COM 929236107 429,300 15,562 3.76 29,176 -6.25 0.0207
2014-08-08 2014-06-30 13F WD-40 COM 929236107 413,738 31,051 8.11 31,121 4.84 0.0216
2014-05-14 2014-03-31 13F WD-40 COM 929236107 382,687 5,145 1.36 29,685 5.28 0.0222
2014-02-12 2013-12-31 13F WD-40 COM 929236107 377,542 8,444 2.29 28,195 17.70 0.0220
2013-11-13 2013-09-30 13F WD-40 COM 929236107 369,098 -7,879 -2.09 23,954 16.63 0.0207
2013-08-15 2013-06-30 13F WD-40 COM 929236107 376,977 376,977 20,538 0.0193
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.