WD-40 Company
US ˙ NasdaqGS ˙ US9292361071

SecurityWDFC / WD-40 Company
InstitutionAmalgamated Bank
Latest Disclosed Ownership3,885 shares
Latest Disclosed Value $ 792
Amalgamated Bank reports 1.27% decrease in ownership of WDFC / WD-40 Company

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 3,885 shares of WD-40 Company (US:WDFC) valued at $792,307 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 3,935 shares of WD-40 Company. The current value of the position is $771,367 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)
2026-05-08 2026-03-31 13F WD 40 COM 929236107 3,885 -50 -1.27 1 0.0061
2026-02-05 2025-12-31 13F WD 40 COM 929236107 3,935 10 0.25 1 0.0056
2025-10-29 2025-09-30 13F WD 40 COM 929236107 3,925 68 1.76 1 0.0055
2025-08-04 2025-06-30 13F WD 40 COM 929236107 3,857 0 0.00 1 0.0068
2025-04-25 2025-03-31 13F WD 40 COM 929236107 3,857 -114 -2.87 1 0.0081
2025-02-04 2024-12-31 13F WD 40 COM 929236107 3,971 -8 -0.20 1 -100.00 0.0079
2024-10-30 2024-09-30 13F WD 40 COM 929236107 3,979 -167 -4.03 1 0.0085
2024-08-12 2024-06-30 13F WD 40 COM 929236107 4,146 -110 -2.58 1 -100.00 0.0078
2024-04-23 2024-03-31 13F WD 40 COM 929236107 4,256 -1,597 -27.29 1 0.00 0.0092
2024-02-06 2023-12-31 13F WD 40 COM 929236107 5,853 -185 -3.06 1 0.00 0.0112
2023-11-08 2023-09-30 13F WD 40 COM 929236107 6,038 -157 -2.53 1 0.00 0.0104
2023-08-11 2023-06-30 13F WD 40 COM 929236107 6,195 -5 -0.08 1 0.00 0.0095
2023-05-02 2023-03-31 13F WD 40 COM 929236107 6,200 -477 -7.14 1 0.00 0.0094
2023-02-10 2022-12-31 13F WD 40 COM 929236107 6,677 -35 -0.52 1 -99.92 0.0096
2022-11-09 2022-09-30 13F WD 40 COM 929236107 6,712 143 2.18 1,180 -10.81 0.0114
2022-08-15 2022-06-30 13F WD 40 COM 929236107 6,569 -105 -1.57 1,323 8.18 0.0123
2022-08-25 2022-03-31 13F/A-1 WD 40 COM 929236107 6,674 -428 -6.03 1,223 -29.59 0.0095
2022-06-30 2022-03-31 13F WD 40 COM 929236107 6,674 -428 1,223 0.0097
2022-02-15 2021-12-31 13F/A-1 WD 40 COM 929236107 7,102 -115 -1.59 1,737 3.95 0.0128
2022-02-15 2021-12-31 13F WD 40 COM 929236107 7,102 -115 1,737 0.0128
2021-10-29 2021-09-30 13F WD 40 COM 929236107 7,217 -141 -1.92 1,671 -11.40 0.0141
2021-08-16 2021-06-30 13F WD 40 COM 929236107 7,358 5,343 265.16 1,886 205.67 0.0151
2021-05-13 2021-03-31 13F WD 40 COM 929236107 2,015 -176 -8.03 617 6.01 0.0231
2021-02-12 2020-12-31 13F WD 40 COM 929236107 2,191 20 0.92 582 41.61 0.0221
2020-10-30 2020-09-30 13F WD 40 COM 929236107 2,171 -64 -2.86 411 -7.22 0.0179
2020-08-10 2020-06-30 13F WD 40 COM 929236107 2,235 -339 -13.17 443 -14.31 0.0205
2020-05-13 2020-03-31 13F WD 40 COM 929236107 2,574 -93 -3.49 517 -0.19 0.0126
2020-02-13 2019-12-31 13F WD 40 COM 929236107 2,667 121 4.75 518 10.92 0.0095
2019-11-13 2019-09-30 13F WD 40 COM 929236107 2,546 -48 -1.85 467 13.08 0.0098
2019-08-14 2019-06-30 13F WD 40 COM 929236107 2,594 338 14.98 413 8.12 0.0096
2019-05-15 2019-03-31 13F WD 40 COM 929236107 2,256 69 3.16 382 -4.74 0.0093
2019-02-15 2018-12-31 13F WD 40 COM 929236107 2,187 2,187 401 0.0114
2018-11-14 2018-09-30 13F WD 40 COM 929236107 0 -2,230 -100.00 0 -100.00
2018-07-18 2018-06-30 13F WD 40 COM 929236107 2,230 238 11.95 326 24.43 0.0080
2018-05-22 2018-03-31 13F WD 40 COM 929236107 1,992 -27 -1.34 262 10.08 0.0069
2018-02-13 2017-12-31 13F WD 40 COM 929236107 2,019 117 6.15 238 11.74 0.0064
2017-11-09 2017-09-30 13F WD 40 COM 929236107 1,902 -26 -1.35 213 0.00 0.0066
2017-08-10 2017-06-30 13F WD 40 COM 929236107 1,928 65 3.49 213 4.93 0.0070
2017-05-12 2017-03-31 13F WD 40 COM 929236107 1,863 -6 -0.32 203 -6.88 0.0101
2017-02-14 2016-12-31 13F WD 40 COM 929236107 1,869 1,869 218 0.0099
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.