WD-40 Company
US ˙ NasdaqGS ˙ US9292361071

SecurityWDFC / WD-40 Company
InstitutionCENTRAL TRUST Co
Latest Disclosed Ownership3,131 shares
Latest Disclosed Value $ 638,537
CENTRAL TRUST Co reports 0.10% increase in ownership of WDFC / WD-40 Company

On April 17, 2026 - CENTRAL TRUST Co filed a 13F-HR form disclosing ownership of 3,131 shares of WD-40 Company (US:WDFC) valued at $638,536 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 3,128 shares of WD-40 Company. This represents a change in shares of 0.10% during the quarter. The current value of the position is $621,660 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.

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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)
2026-04-17 2026-03-31 13F WD 40 COM 929236107 3,131 3 0.10 639 3.74 0.0126
2026-02-02 2025-12-31 13F WD 40 COM 929236107 3,128 0 0.00 616 -0.49 0.0121
2025-11-06 2025-09-30 13F WD 40 COM 929236107 3,128 0 0.00 618 -13.32 0.0129
2025-08-07 2025-06-30 13F WD 40 COM 929236107 3,128 0 0.00 713 -6.55 0.0165
2025-04-18 2025-03-31 13F WD 40 COM 929236107 3,128 0 0.00 763 0.53 0.0188
2025-01-24 2024-12-31 13F WD 40 COM 929236107 3,128 0 0.00 759 -5.83 0.0186
2024-10-22 2024-09-30 13F WD 40 COM 929236107 3,128 0 0.00 807 17.32 0.0189
2024-08-05 2024-06-30 13F WD 40 COM 929236107 3,128 0 0.00 687 -13.26 0.0168
2024-04-24 2024-03-31 13F WD 40 COM 929236107 3,128 0 0.00 792 6.02 0.0197
2024-01-24 2023-12-31 13F WD 40 COM 929236107 3,128 0 0.00 748 17.64 0.0199
2023-10-26 2023-09-30 13F WD 40 COM 929236107 3,128 0 0.00 636 7.63 0.0183
2023-07-26 2023-06-30 13F WD 40 COM 929236107 3,128 0 0.00 590 6.12 0.0165
2023-04-19 2023-03-31 13F WD 40 COM 929236107 3,128 0 0.00 557 10.32 0.0163
2023-01-26 2022-12-31 13F WD 40 COM 929236107 3,128 0 0.00 504 -8.36 0.0155
2022-11-17 2022-09-30 13F/A-2 WD 40 COM 929236107 3,128 0 0.00 550 -12.70 0.0189
2022-11-04 2022-09-30 13F/A-1 WD 40 COM 929236107 3,128 0 630 0.0113
2022-11-03 2022-09-30 13F WD 40 COM 929236107 3,128 0 630 0.0113
2022-08-09 2022-06-30 13F WD 40 COM 929236107 3,128 0 0.00 630 9.95 0.0208
2022-05-03 2022-03-31 13F WD-40 COMMON STOCK 929236107 3,128 0 0.00 573 -25.10 0.0164
2022-02-08 2021-12-31 13F WD-40 COMMON STOCK 929236107 3,128 -347 -9.99 765 -4.85 0.0216
2021-10-19 2021-09-30 13F WD-40 COMMON STOCK 929236107 3,475 0 0.00 804 -9.76 0.0287
2021-07-23 2021-06-30 13F WD-40 COMMON STOCK 929236107 3,475 0 0.00 891 -16.26 0.0323
2021-04-23 2021-03-31 13F WD-40 COMMON STOCK 929236107 3,475 0 0.00 1,064 15.28 0.0416
2021-01-29 2020-12-31 13F WD-40 COMMON STOCK 929236107 3,475 0 0.00 923 40.27 0.0377
2020-10-22 2020-09-30 13F WD-40 COMMON STOCK 929236107 3,475 -386 -10.00 658 -14.10 0.0298
2020-07-14 2020-06-30 13F WD-40 COMMON STOCK 929236107 3,861 0 0.00 766 -1.16 0.0384
2020-04-17 2020-03-31 13F WD-40 COMMON STOCK 929236107 3,861 0 0.00 775 3.33 0.0475
2020-01-21 2019-12-31 13F WD-40 COMMON STOCK 929236107 3,861 -429 -10.00 750 -4.70 0.0384
2019-10-28 2019-09-30 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 787 3.96 0.0443
2019-07-12 2019-06-30 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 757 4.13 0.0431
2019-04-26 2019-03-31 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 727 -7.51 0.0434
2019-01-08 2018-12-31 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 786 6.50 0.0522
2018-10-04 2018-09-30 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 738 17.70 0.0429
2018-07-09 2018-06-30 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 627 10.97 0.0400
2018-04-04 2018-03-31 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 565 11.66 0.0359
2018-01-23 2017-12-31 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 506 5.42 0.0308
2017-10-17 2017-09-30 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 480 1.48 0.0310
2017-07-14 2017-06-30 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 473 1.28 0.0313
2017-04-06 2017-03-31 13F WD-40 COMMON STOCK 929236107 4,290 0 0.00 467 -6.97 0.0311
2017-01-24 2016-12-31 13F WD-40 COMMON STOCK 929236107 4,290 4,290 502 0.0346
2016-01-21 2015-12-31 13F WD-40 COMMON STOCK 929236107 0 -100 -100.00 0 -100.00
2015-10-14 2015-09-30 13F WD-40 COMMON STOCK 929236107 100 0 0.00 9 0.00 0.0008
2015-07-28 2015-06-30 13F WD-40 COMMON STOCK 929236107 100 0 0.00 9 0.00 0.0007
2015-04-09 2015-03-31 13F WD-40 COMMON STOCK 929236107 100 0 0.00 9 0.00 0.0007
2015-01-16 2014-12-31 13F WD-40 COMMON STOCK 929236107 100 0 0.00 9 28.57 0.0007
2014-10-23 2014-09-30 13F WD-40 COMMON STOCK 929236107 100 0 0.00 7 -12.50 0.0006
2014-05-07 2014-03-31 13F WD-40 COMMON STOCK 929236107 100 0 0.00 8 14.29 0.0007
2014-01-27 2013-12-31 13F WD-40 COMMON STOCK 929236107 100 0 0.00 7 16.67 0.0006
2013-10-24 2013-09-30 13F WD-40 COMMON STOCK 929236107 100 0 0.00 6 20.00 0.0005
2013-08-13 2013-06-30 13F WD-40 COMMON STOCK 929236107 100 100 5 0.0005
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.