W.W. Grainger, Inc.
AT ˙ WBAG ˙ US3848021040
1.111,00 € ↓ -3,00 (-0,27%)
2026-06-04
DEL PRIS
SecurityAT:GWW / W.W. Grainger, Inc.
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership19,228 shares
Latest Disclosed Value $ 20,974,095
Asset Management One Co., Ltd. reports 0.87% increase in ownership of GWW / W.W. Grainger, Inc.

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 19,228 shares of W.W. Grainger, Inc. (AT:GWW) valued at $18,051,246 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 19,062 shares of W.W. Grainger, Inc.. This represents a change in shares of 0.87% during the quarter. The current value of the position is $21,362,308 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 WW GRAINGER COM 384802104 19,228 166 0.87 20,974 7.25 0.0619
2026-01-27 2025-12-31 13F WW GRAINGER COM 384802104 19,062 -1,193 -5.89 19,557 1.32 0.0544
2025-10-22 2025-09-30 13F GRAINGER W W COM 384802104 20,255 37 0.18 19,302 -8.22 0.0559
2025-07-31 2025-06-30 13F GRAINGER W W COM 384802104 20,218 950 4.93 21,032 10.50 0.0659
2025-04-23 2025-03-31 13F GRAINGER W W COM 384802104 19,268 1,446 8.11 19,034 -0.09 0.0658
2025-01-30 2024-12-31 13F GRAINGER W W COM 384802104 17,822 186 1.05 19,051 3.99 0.0655
2024-10-30 2024-09-30 13F GRAINGER W W COM 384802104 17,636 -12 -0.07 18,320 15.06 0.0652
2024-07-18 2024-06-30 13F GRAINGER W W COM 384802104 17,648 -460 -2.54 15,923 -13.57 0.0609
2024-05-02 2024-03-31 13F GRAINGER W W COM 384802104 18,108 -693 -3.69 18,421 18.46 0.0710
2024-01-24 2023-12-31 13F GRAINGER W W COM 384802104 18,801 -187 -0.98 15,550 18.38 0.0626
2023-10-19 2023-09-30 13F GRAINGER W W COM 384802104 18,988 -330 -1.71 13,137 -13.77 0.0585
2023-07-31 2023-06-30 13F GRAINGER W W COM 384802104 19,318 876 4.75 15,234 19.92 0.0645
2023-04-25 2023-03-31 13F GRAINGER W W COM 384802104 18,442 140 0.76 12,703 23.51 0.0576
2023-02-06 2022-12-31 13F GRAINGER W W COM 384802104 18,302 -839 -4.38 10,286 9.85 0.0501
2022-11-04 2022-09-30 13F GRAINGER W W COM 384802104 19,141 -519 -2.64 9,363 4.80 0.0476
2022-07-29 2022-06-30 13F GRAINGER W W COM 384802104 19,660 -692 -3.40 8,934 -14.89 0.0420
2022-05-13 2022-03-31 13F GRAINGER W W COM 384802104 20,352 -1,647 -7.49 10,497 -9.14 0.0410
2022-02-09 2021-12-31 13F GRAINGER W W COM 384802104 21,999 583 2.72 11,553 37.26 0.0402
2021-11-02 2021-09-30 13F GRAINGER W W COM 384802104 21,416 -1,443 -6.31 8,417 -15.93 0.0323
2021-08-03 2021-06-30 13F GRAINGER W W COM 384802104 22,859 296 1.31 10,012 10.68 0.0373
2021-05-14 2021-03-31 13F GRAINGER W W COM 384802104 22,563 -1,567 -6.49 9,046 -7.96 0.0359
2021-02-12 2020-12-31 13F GRAINGER W W COM 384802104 24,130 -597 -2.41 9,828 11.43 0.0405
2020-11-13 2020-09-30 13F GRAINGER W W COM 384802104 24,727 -2,626 -9.60 8,820 2.62 0.0405
2020-08-14 2020-06-30 13F GRAINGER W W COM 384802104 27,353 -784 -2.79 8,595 22.93 0.0423
2020-05-14 2020-03-31 13F GRAINGER W W COM 384802104 28,137 -2,046 -6.78 6,992 -31.57 0.0408
2020-02-14 2019-12-31 13F GRAINGER W W COM 384802104 30,183 2,824 10.32 10,217 25.69 0.0461
2019-11-14 2019-09-30 13F GRAINGER W W COM 384802104 27,359 222 0.82 8,129 11.69 0.0392
2019-08-14 2019-06-30 13F GRAINGER W W COM 384802104 27,137 1,047 4.01 7,278 -7.29 0.0357
2019-05-15 2019-03-31 13F GRAINGER W W COM 384802104 26,090 -66,995 -71.97 7,850 -70.12 0.0425
2019-02-13 2018-12-31 13F GRAINGER W W COM 384802104 93,085 -127 -0.14 26,272 -21.05 0.0626
2018-11-14 2018-09-30 13F GRAINGER W W COM 384802104 93,212 -2,964 -3.08 33,275 12.25 0.0683
2018-08-14 2018-06-30 13F GRAINGER W W COM 384802104 96,176 5,863 6.49 29,643 16.28 0.0648
2018-05-14 2018-03-31 13F GRAINGER W W COM 384802104 90,313 -464 -0.51 25,492 18.80 0.0574
2018-02-14 2017-12-31 13F GRAINGER W W COM 384802104 90,777 -858 -0.94 21,458 30.25 0.0473
2017-11-14 2017-09-30 13F GRAINGER W W COM 384802104 91,635 -798 -0.86 16,474 -1.24 0.0387
2017-08-14 2017-06-30 13F GRAINGER W W COM 384802104 92,433 2,307 2.56 16,681 -20.50 0.0426
2017-05-11 2017-03-31 13F GRAINGER W W COM 384802104 90,126 -8,313 -8.44 20,983 -8.25 0.0551
2017-05-02 2016-12-31 13F/A-1 GRAINGER W W COM 384802104 98,439 93,085 1,738.61 22,871 1,833.31 0.0585
2017-02-13 2016-12-31 13F GRAINGER W W COM 384802104 100,169 23,273
2016-11-07 2016-09-30 13F WW GRAINGER Com 384802104 5,354 -531 -9.02 1,183 -8.65 0.0176
2016-08-03 2016-06-30 13F WW GRAINGER Com 384802104 5,885 22 0.38 1,295 -5.34 0.0194
2016-05-05 2016-03-31 13F WW GRAINGER Com 384802104 5,863 88 1.52 1,368 15.54 0.0200
2016-01-28 2015-12-31 13F WW GRAINGER Com 384802104 5,775 0 0.00 1,184 -3.43 0.0177
2015-11-12 2015-09-30 13F WW GRAINGER Com 384802104 5,775 369 6.83 1,226 -4.14 0.0187
2015-08-06 2015-06-30 13F WW GRAINGER Com 384802104 5,406 -386 -6.66 1,279 -6.85 0.0177
2015-05-11 2015-03-31 13F WW GRAINGER COM 384802104 5,792 -68 -1.16 1,373 -9.31 0.0170
2015-02-09 2014-12-31 13F WW GRAINGER COM 384802104 5,860 -1,430 -19.62 1,514 -17.54 0.0196
2014-11-05 2014-09-30 13F WW GRAINGER Com 384802104 7,290 1,884 34.85 1,836 33.53 0.0254
2014-08-12 2014-06-30 13F WW GRAINGER COM 384802104 5,406 -2,941 -35.23 1,375 -34.12 0.0205
2014-05-05 2014-03-31 13F WW GRAINGER COM 384802104 8,347 330 4.12 2,087 1.90 0.0329
2014-02-05 2013-12-31 13F/A-1 WW GRAINGER COM 384802104 8,017 32 0.40 2,048 -2.71 0.0317
2014-01-29 2013-12-31 13F WW GRAINGER COM 384802104 8,017 2,048
2014-02-05 2013-09-30 13F/A-1 WW GRAINGER Com 384802104 7,985 798 11.10 2,105 15.03 0.0317
2013-11-06 2013-09-30 13F WW GRAINGER Com 384802104 7,985 2,105
2014-02-12 2013-06-30 13F/A-1 WW GRAINGER Com 384802104 7,187 7,187 1,830 0.0297
2013-08-05 2013-06-30 13F WW GRAINGER Com 384802104 7,187 1,830
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.