WESCO International, Inc.
MX ˙ BMV ˙ US95082P1057
SecurityMX:WCC / WESCO International, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership434,246 shares
Latest Disclosed Value $ 118,818,392
Northern Trust Corp reports 1.16% increase in ownership of WCC / WESCO International, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 434,246 shares of WESCO International, Inc. (MX:WCC) valued at $118,818,392 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 429,279 shares of WESCO International, Inc.. This represents a change in shares of 1.16% 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)
2026-05-14 2026-03-31 13F WESCO INTL COM 95082P105 434,246 4,967 1.16 118,818 13.14 0.0032
2026-02-17 2025-12-31 13F WESCO INTL COM 95082P105 429,279 -27,417 -6.00 105,019 8.72 0.0134
2025-11-14 2025-09-30 13F WESCO INTL COM 95082P105 456,696 16,288 3.70 96,591 18.43 0.0124
2025-08-13 2025-06-30 13F WESCO INTL COM 95082P105 440,408 42,421 10.66 81,564 31.96 0.0112
2025-05-13 2025-03-31 13F WESCO INTL COM 95082P105 397,987 12,793 3.32 61,807 -11.33 0.0092
2025-02-14 2024-12-31 13F WESCO INTL COM 95082P105 385,194 70,838 22.53 69,705 32.00 0.0099
2024-11-13 2024-09-30 13F WESCO INTL COM 95082P105 314,356 -2,011 -0.64 52,806 5.29 0.0086
2024-08-14 2024-06-30 13F WESCO INTL COM 95082P105 316,367 38,933 14.03 50,150 5.54 0.0085
2024-05-14 2024-03-31 13F WESCO INTL COM 95082P105 277,434 -43,942 -13.67 47,519 -14.96 0.0082
2024-02-13 2023-12-31 13F WESCO INTL COM 95082P105 321,376 -1,216 -0.38 55,881 20.44 0.0101
2023-11-13 2023-09-30 13F WESCO INTL COM 95082P105 322,592 -8,306 -2.51 46,395 -21.70 0.0090
2023-08-11 2023-06-30 13F WESCO INTL COM 95082P105 330,898 57,782 21.16 59,251 40.38 0.0114
2023-05-15 2023-03-31 13F WESCO INTL COM 95082P105 273,116 3,356 1.24 42,207 24.97 0.0084
2023-02-13 2022-12-31 13F WESCO INTL COM 95082P105 269,760 -2,333 -0.86 33,774 3.97 0.0071
2022-11-14 2022-09-30 13F WESCO INTL COM 95082P105 272,093 -1,315 -0.48 32,483 10.94 0.0074
2022-08-12 2022-06-30 13F WESCO INTL COM 95082P105 273,408 -382,869 -58.34 29,281 -65.72 0.0063
2022-05-13 2022-03-31 13F WESCO INTL COM 95082P105 656,277 -22,028 -3.25 85,408 -4.31 0.0150
2022-02-08 2021-12-31 13F WESCO INTL COM 95082P105 678,305 -15,854 -2.28 89,258 11.50 0.0146
2021-11-15 2021-09-30 13F WESCO INTL COM 95082P105 694,159 -6,018 -0.86 80,051 11.19 0.0142
2021-08-13 2021-06-30 13F WESCO INTL COM 95082P105 700,177 -25,136 -3.47 71,993 14.71 0.0127
2021-05-12 2021-03-31 13F WESCO INTL COM 95082P105 725,313 -237,075 -24.63 62,762 -16.92 0.0117
2021-02-11 2020-12-31 13F WESCO INTL COM 95082P105 962,388 -3,118 -0.32 75,547 77.75 0.0147
2020-11-16 2020-09-30 13F WESCO INTL COM 95082P105 965,506 -77,457 -7.43 42,502 16.07 0.0093
2020-08-14 2020-06-30 13F WESCO INTL COM 95082P105 1,042,963 638,505 157.87 36,619 296.22 0.0087
2020-05-14 2020-03-31 13F WESCO INTL COM 95082P105 404,458 -10,178 -2.45 9,242 -62.47 0.0027
2020-02-14 2019-12-31 13F WESCO INTL COM 95082P105 414,636 7,369 1.81 24,625 26.57 0.0055
2019-11-13 2019-09-30 13F WESCO INTL COM 95082P105 407,267 15,828 4.04 19,456 -1.87 0.0047
2019-08-13 2019-06-30 13F WESCO INTL COM 95082P105 391,439 59,239 17.83 19,827 12.59 0.0047
2019-05-13 2019-03-31 13F WESCO INTL COM 95082P105 332,200 23,318 7.55 17,610 18.78 0.0043
2019-02-12 2018-12-31 13F WESCO INTL COM 95082P105 308,882 7,620 2.53 14,826 -19.91 0.0042
2018-11-14 2018-09-30 13F WESCO INTL COM 95082P105 301,262 3,384 1.14 18,512 8.83 0.0045
2018-09-18 2018-06-30 13F/A-1 WESCO INTL COM 95082P105 297,878 46,702 18.59 17,010 9.15 0.0043
2018-08-14 2018-06-30 13F WESCO INTL COM 95082P105 300,949 49,773 17,185
2018-05-09 2018-03-31 13F WESCO INTL COM 95082P105 251,176 3,680 1.49 15,584 -7.61 0.0041
2018-02-14 2017-12-31 13F WESCO INTL COM 95082P105 247,496 -1,457 -0.59 16,868 16.32 0.0043
2017-11-13 2017-09-30 13F WESCO INTL COM 95082P105 248,953 6,523 2.69 14,501 4.39 0.0038
2017-08-11 2017-06-30 13F WESCO INTL COM 95082P105 242,430 12,632 5.50 13,891 -13.08 0.0039
2017-05-12 2017-03-31 13F WESCO INTL COM 95082P105 229,798 11,741 5.38 15,982 10.14 0.0046
2017-02-13 2016-12-31 13F WESCO INTL COM 95082P105 218,057 -40,235 -15.58 14,511 -8.63 0.0045
2016-11-09 2016-09-30 13F WESCO INTL COM 95082P105 258,292 12,027 4.88 15,882 25.25 0.0049
2016-08-12 2016-06-30 13F WESCO INTL COM 95082P105 246,265 -3,791 -1.52 12,680 -4.08 0.0041
2016-08-19 2016-03-31 13F/A-1 WESCO INTL COM 95082P105 250,056 31,903 14.62 13,220 38.72 0.0044
2016-05-13 2016-03-31 13F Wesco Intl COMM 95082P105 250,053 13,670
2016-02-12 2015-12-31 13F Wesco Intl COMM 95082P105 218,153 37 0.02 9,530 -5.98 0.0032
2015-11-12 2015-09-30 13F Wesco Intl COMM 95082P105 218,116 218,116 0.00 10,136 0.0034
2015-08-13 2015-06-30 13F Wesco Intl COMM 95082P105 0 -205,249 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Wesco Intl COMM 95082P105 205,249 -18,187 -8.14 14,345 -15.75 0.0043
2015-02-12 2014-12-31 13F Wesco Intl COM 95082P105 223,436 -10,007 -4.29 17,027 -6.80 0.0051
2014-11-13 2014-09-30 13F Wesco Intl COMM 95082P105 233,443 26,155 12.62 18,269 2.03 0.0057
2014-08-14 2014-06-30 13F WESCO INTL com 95082P105 207,288 -30,028 -12.65 17,905 -9.34 0.0056
2014-05-14 2014-03-31 13F WESCO INTL COMM 95082P105 237,316 20,082 9.24 19,749 -0.17 0.0062
2014-02-21 2013-12-31 13F/A-1 WESCO INTL COM 95082P105 217,234 3,856 1.81 19,783 21.15 0.0063
2014-02-12 2013-12-31 13F WESCO INTL COM 95082P105 217,234 19,783
2013-11-13 2013-09-30 13F WESCO INTL COM 95082P105 213,378 -1,069 -0.50 16,330 12.05 0.0058
2013-08-09 2013-06-30 13F WESCO INTL COM 95082P105 214,447 214,447 14,574 0.0053
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.