W.W. Grainger, Inc.
US ˙ NYSE ˙ US3848021040

SecurityGWW / W.W. Grainger, Inc.
InstitutionFirst Manhattan Co
Latest Disclosed Ownership585 shares
Latest Disclosed Value $ 638,124
First Manhattan Co reports 0.34% increase in ownership of GWW / W.W. Grainger, Inc.

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 585 shares of W.W. Grainger, Inc. (US:GWW) valued at $638,124 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 583 shares of W.W. Grainger, Inc.. This represents a change in shares of 0.34% during the quarter. The current value of the position is $751,269 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)
2026-05-15 2026-03-31 13F WW GRAINGER COM 384802104 585 2 0.34 638 8.50 0.0018
2026-02-17 2025-12-31 13F WW GRAINGER COM 384802104 583 43 7.96 588 14.40 0.0015
2025-11-14 2025-09-30 13F GRAINGER W W COM 384802104 540 0 0.00 515 -8.38 0.0014
2025-08-14 2025-06-30 13F GRAINGER W W COM 384802104 540 0 0.00 562 5.25 0.0016
2025-05-15 2025-03-31 13F GRAINGER W W COM 384802104 540 -19 -3.40 533 -9.51 0.0016
2025-02-14 2024-12-31 13F GRAINGER W W COM 384802104 559 -62 -9.98 589 -8.68 0.0017
2024-11-14 2024-09-30 13F GRAINGER W W COM 384802104 621 10 1.64 645 17.06 0.0019
2024-08-15 2024-06-30 13F/A-1 GRAINGER W W COM 384802104 611 -99 -13.94 551 -23.68 0.0018
2024-08-14 2024-06-30 13F GRAINGER W W COM 384802104 611 -99 551 0.0018
2024-05-15 2024-03-31 13F GRAINGER W W COM 384802104 710 0 0.00 722 22.79 0.0023
2024-02-13 2023-12-31 13F GRAINGER W W COM 384802104 710 -15 -2.07 588 17.37 0.0020
2023-11-14 2023-09-30 13F GRAINGER W W COM 384802104 725 0 0.00 502 -12.26 0.0019
2023-08-14 2023-06-30 13F GRAINGER W W COM 384802104 725 0 0.00 572 14.43 0.0021
2023-05-15 2023-03-31 13F GRAINGER W W COM 384802104 725 -100 -12.12 499 8.95 0.0019
2023-02-14 2022-12-31 13F GRAINGER W W COM 384802104 825 -55 -6.25 459 6.51 0.0017
2022-11-14 2022-09-30 13F GRAINGER W W COM 384802104 880 0 0.00 430 7.77 0.0018
2022-08-15 2022-06-30 13F GRAINGER W W COM 384802104 880 0 0.00 399 -11.92 0.0016
2022-05-16 2022-03-31 13F GRAINGER W W COM 384802104 880 -105 -10.66 453 -11.18 0.0015
2022-02-14 2021-12-31 13F GRAINGER W W COM 384802104 985 0 0.00 510 31.78 0.0017
2021-11-15 2021-09-30 13F GRAINGER W W COM 384802104 985 0 0.00 387 -10.21 0.0014
2021-08-16 2021-06-30 13F GRAINGER W W COM 384802104 985 -165 -14.35 431 -6.51 0.0016
2021-05-14 2021-03-31 13F GRAINGER W W COM 384802104 1,150 0 0.00 461 -1.71 0.0020
2021-02-16 2020-12-31 13F GRAINGER W W COM 384802104 1,150 0 0.00 469 14.39 0.0022
2020-11-12 2020-09-30 13F GRAINGER W W COMMON 384802104 1,150 0 0.00 410 13.57 0.0021
2020-08-14 2020-06-30 13F GRAINGER W W COMMON 384802104 1,150 -394 -25.52 361 -5.74 0.0021
2020-05-06 2020-03-31 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 383 -26.63 0.0025
2020-02-13 2019-12-31 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 522 13.97 0.0026
2019-11-13 2019-09-30 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 458 10.63 0.0025
2019-08-16 2019-06-30 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 414 -10.78 0.0023
2019-04-12 2019-03-31 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 464 6.67 0.0027
2019-01-30 2018-12-31 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 435 -21.05 0.0027
2018-10-15 2018-09-30 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 551 15.76 0.0029
2018-08-01 2018-06-30 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 476 9.43 0.0027
2018-04-20 2018-03-31 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 435 19.51 0.0025
2018-01-22 2017-12-31 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 364 31.41 0.0020
2017-10-25 2017-09-30 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 277 -0.36 0.0016
2017-08-10 2017-06-30 13F/A-2 GRAINGER W W COMMON 384802104 1,544 0 0.00 278 -22.56 0.0016
2017-08-01 2017-06-30 13F/A-1 GRAINGER W W COMMON 384802104 1,544 0 278 0.0016
2017-07-28 2017-06-30 13F GRAINGER W W COMMON 384802104 1,544 0 278
2017-04-25 2017-03-31 13F/A-1 GRAINGER W W COMMON 384802104 1,544 0 0.00 359 0.28 0.0021
2017-04-24 2017-03-31 13F GRAINGER W W COMMON 384802104 1,544 347
2017-01-25 2016-12-31 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 358 3.17 0.0022
2016-10-20 2016-09-30 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 347 -0.86 0.0021
2016-07-14 2016-06-30 13F GRAINGER W W COMMON 384802104 1,544 0 0.00 350 -2.78 0.0021
2016-04-22 2016-03-31 13F GRAINGER W W COMMON 384802104 1,544 -235 -13.21 360 0.00 0.0022
2016-01-20 2015-12-31 13F GRAINGER W W COMMON 384802104 1,779 0 0.00 360 -5.76 0.0022
2015-10-26 2015-09-30 13F GRAINGER W W COMMON 384802104 1,779 0 0.00 382 -9.26 0.0025
2015-07-17 2015-06-30 13F GRAINGER W W COMMON 384802104 1,779 0 0.00 421 0.48 0.0025
2015-04-30 2015-03-31 13F GRAINGER W W COMMON 384802104 1,779 -5 -0.28 419 -7.71 0.0024
2015-01-20 2014-12-31 13F GRAINGER W W COMMON 384802104 1,784 5 0.28 454 1.57 0.0026
2014-10-23 2014-09-30 13F GRAINGER W W COMMON 384802104 1,779 0 0.00 447 -1.11 0.0026
2014-08-14 2014-06-30 13F/A-1 GRAINGER W W COMMON 384802104 1,779 -5 -0.28 452 0.44 0.0029
2014-05-16 2014-03-31 13F GRAINGER W W COMMON 384802104 1,784 0 0.00 450 -1.10 0.0030
2014-02-04 2013-12-31 13F GRAINGER W W COMMON 384802104 1,784 0 0.00 455 -2.36 0.0030
2013-10-29 2013-09-30 13F GRAINGER W W COMMON 384802104 1,784 0 0.00 466 1.53 0.0033
2013-08-13 2013-06-30 13F GRAINGER W W COMMON 384802104 1,784 1,784 459 0.0032
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.