W.W. Grainger, Inc.
MX ˙ BMV ˙ US3848021040
SecurityMX:GWW / W.W. Grainger, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership5,948 shares
Latest Disclosed Value $ 6,494,710
Janus Henderson Group Plc reports 4.20% decrease in ownership of GWW / W.W. Grainger, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 5,948 shares of W.W. Grainger, Inc. (MX:GWW) valued at $6,494,710 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,209 shares of W.W. Grainger, Inc.. This represents a change in shares of -4.20% during the quarter.

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)
2026-05-18 2026-03-31 13F/A-1 WW GRAINGER COM 384802104 5,948 -261 -4.20 6,495 3.59 0.0011
2026-05-15 2026-03-31 13F WW GRAINGER COM 384802104 1,915 -4,294 -69.16 2,091 -66.65 0.0004
2026-02-17 2025-12-31 13F WW GRAINGER COM 384802104 6,209 126 2.07 6,270 8.10 0.0028
2025-11-14 2025-09-30 13F GRAINGER W W COM 384802104 6,083 -7,904 -56.51 5,799 -60.12 0.0026
2025-08-14 2025-06-30 13F GRAINGER W W COM 384802104 13,987 4,767 51.70 14,542 61.81 0.0071
2025-05-15 2025-03-31 13F GRAINGER W W COM 384802104 9,220 2,610 39.49 8,987 28.86 0.0049
2025-02-14 2024-12-31 13F GRAINGER W W COM 384802104 6,610 133 2.05 6,975 3.69 0.0035
2024-11-14 2024-09-30 13F GRAINGER W W COM 384802104 6,477 326 5.30 6,727 21.30 0.0034
2024-08-14 2024-06-30 13F GRAINGER W W COM 384802104 6,151 -3,355 -35.29 5,546 -42.62 0.0030
2024-05-15 2024-03-31 13F GRAINGER W W COM 384802104 9,506 2,548 36.62 9,664 67.46 0.0053
2024-02-14 2023-12-31 13F GRAINGER W W COM 384802104 6,958 -196 -2.74 5,771 16.54 0.0034
2023-11-14 2023-09-30 13F GRAINGER W W COM 384802104 7,154 291 4.24 4,953 -8.48 0.0032
2023-08-14 2023-06-30 13F GRAINGER W W COM 384802104 6,863 -1,751 -20.33 5,411 -8.74 0.0034
2023-05-15 2023-03-31 13F GRAINGER W W COM 384802104 8,614 2,579 42.73 5,930 76.67 0.0039
2023-02-14 2022-12-31 13F GRAINGER W W COM 384802104 6,035 1 0.02 3,357 13.61 0.0024
2022-11-14 2022-09-30 13F GRAINGER W W COM 384802104 6,034 -12 -0.20 2,954 7.46 0.0022
2022-08-15 2022-06-30 13F GRAINGER W W COM 384802104 6,046 -72,562 -92.31 2,749 -93.22 0.0019
2022-05-16 2022-03-31 13F GRAINGER W W COM 384802104 78,608 27,862 54.90 40,546 54.17 0.0196
2022-02-14 2021-12-31 13F GRAINGER W W COM 384802104 50,746 -49,987 -49.62 26,299 -33.58 0.0110
2021-11-16 2021-09-30 13F GRAINGER W W COM 384802104 100,733 34,313 51.66 39,594 36.10 0.0173
2021-08-16 2021-06-30 13F GRAINGER W W COM 384802104 66,420 -47,579 -41.74 29,092 -36.35 0.0125
2021-05-17 2021-03-31 13F GRAINGER W W COM 384802104 113,999 -58,404 -33.88 45,706 -35.08 0.0209
2021-02-16 2020-12-31 13F GRAINGER W W COM 384802104 172,403 -13,021 -7.02 70,399 6.42 0.0327
2020-11-16 2020-09-30 13F GRAINGER W W COM 384802104 185,424 -25,447 -12.07 66,154 -0.14 0.0345
2020-08-14 2020-06-30 13F GRAINGER W W COM 384802104 210,871 112,121 113.54 66,247 169.91 0.0372
2020-05-14 2020-03-31 13F GRAINGER W W COM 384802104 98,750 13,756 16.18 24,544 -14.69 0.0169
2020-02-18 2019-12-31 13F GRAINGER W W COM 384802104 84,994 -64,669 -43.21 28,771 -35.31 0.0147
2019-11-14 2019-09-30 13F GRAINGER W W COM 384802104 149,663 -96,187 -39.12 44,472 -32.56 0.0241
2019-07-31 2019-06-30 13F GRAINGER W W COM 384802104 245,850 -59,437 -19.47 65,944 -28.22 0.0359
2019-04-30 2019-03-31 13F GRAINGER W W COM 384802104 305,287 6,528 2.19 91,870 8.90 0.0509
2019-02-06 2018-12-31 13F GRAINGER W W COM 384802104 298,759 -9,002 -2.92 84,358 -23.31 0.0538
2018-11-09 2018-09-30 13F GRAINGER W W COM 384802104 307,761 102,541 49.97 109,997 73.80 0.0588
2018-08-10 2018-06-30 13F GRAINGER W W COM 384802104 205,220 124,889 155.47 63,291 179.13 0.0361
2018-05-14 2018-03-31 13F GRAINGER W W COM 384802104 80,331 15,283 23.49 22,674 47.54 0.0134
2018-03-12 2017-12-31 13F/A-1 GRAINGER W W COM 384802104 65,048 -30,575 -31.97 15,368 -10.59 0.0095
2018-02-09 2017-12-31 13F GRAINGER W W COM 384802104 65,048 -30,575 15,368
2017-11-14 2017-09-30 13F GRAINGER W W COM 384802104 95,623 -49,107 -33.93 17,188 -34.22 0.0110
2017-08-17 2017-06-30 13F/A-1 GRAINGER W W COM 384802104 144,730 111,052 329.75 26,128 233.39 0.0178
2017-08-14 2017-06-30 13F GRAINGER W W COM 384802104 144,730 111,052 26,128
2017-05-03 2017-03-31 13F GRAINGER W W COM 384802104 33,678 -1,038 -2.99 7,837 -2.80 0.0550
2017-01-30 2016-12-31 13F GRAINGER W W COM 384802104 34,716 -1,551 -4.28 8,063 -1.14 0.0595
2016-10-24 2016-09-30 13F GRAINGER W W COM 384802104 36,267 -25,794 -41.56 8,156 -42.18 0.0601
2016-07-29 2016-06-30 13F GRAINGER W W COM 384802104 62,061 15,277 32.65 14,105 29.19 0.1173
2016-05-12 2016-03-31 13F GRAINGER W W COM 384802104 46,784 31,235 200.88 10,918 246.60 0.0886
2016-02-03 2015-12-31 13F GRAINGER W W COM 384802104 15,549 -72 -0.46 3,150 -6.22 0.0253
2015-11-16 2015-09-30 13F GRAINGER W W COM 384802104 15,621 -308 -1.93 3,359 -10.90 0.0296
2015-08-17 2015-06-30 13F GRAINGER W W COM 384802104 15,929 1,207 8.20 3,770 8.61 0.0296
2015-06-02 2015-03-31 13F/A-1 GRAINGER W W COM 384802104 14,722 353 2.46 3,471 -5.22 0.0268
2015-05-15 2015-03-31 13F GRAINGER W W COM 384802104 14,722 3,471
2015-02-12 2014-12-31 13F GRAINGER W W COM 384802104 14,369 4,889 51.57 3,662 53.48 0.0264
2014-11-12 2014-09-30 13F GRAINGER W W COM 384802104 9,480 -14,688 -60.77 2,386 -61.17 0.0224
2014-08-13 2014-06-30 13F GRAINGER W W COM 384802104 24,168 -13,357 -35.59 6,144 -35.20 0.0574
2014-05-08 2014-03-31 13F GRAINGER W W COM 384802104 37,525 30,273 417.44 9,481 411.93 0.0923
2014-01-14 2013-12-31 13F GRAINGER W W COM 384802104 7,252 0 0.00 1,852 -2.42 0.0187
2013-11-12 2013-09-30 13F GRAINGER W W COM 384802104 7,252 -27,470 -79.11 1,898 -78.52 0.0209
2013-08-15 2013-06-30 13F GRAINGER W W COM 384802104 34,722 34,722 8,837 0.1033
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.