WESCO International, Inc.
MX ˙ BMV ˙ US95082P1057
SecurityMX:WCC / WESCO International, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership711,353 shares
Latest Disclosed Value $ 194,640,771
Morgan Stanley reports 4.98% increase in ownership of WCC / WESCO International, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 711,353 shares of WESCO International, Inc. (MX:WCC) valued at $194,640,771 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 677,602 shares of WESCO International, Inc.. This represents a change in shares of 4.98% 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)
2026-05-15 2026-03-31 13F WESCO INTL COM 95082P105 711,353 33,751 4.98 194,641 17.42 0.0117
2026-05-27 2025-12-31 13F/A-1 WESCO INTL COM 95082P105 677,602 38,187 5.97 165,769 22.58 0.0099
2026-02-13 2025-12-31 13F WESCO INTL COM 95082P105 677,602 38,187 165,769 0.0099
2026-05-27 2025-09-30 13F/A-1 WESCO INTL COM 95082P105 639,415 10,237 1.63 135,237 16.06 0.0082
2025-11-14 2025-09-30 13F WESCO INTL COM 95082P105 639,415 10,237 135,237 0.0082
2025-08-15 2025-06-30 13F WESCO INTL COM 95082P105 629,178 83,926 15.39 116,524 37.61 0.0076
2025-05-15 2025-03-31 13F WESCO INTL COM 95082P105 545,252 34,854 6.83 84,678 -8.32 0.0061
2025-05-15 2024-12-31 13F/A-1 WESCO INTL COM 95082P105 510,398 22,370 4.58 92,362 12.66 0.0065
2025-02-14 2024-12-31 13F WESCO INTL COM 95082P105 510,398 22,370 92,362 0.0065
2025-05-14 2024-09-30 13F/A-2 WESCO INTL COM 95082P105 488,028 -384,425 -44.06 81,979 -40.72 0.0059
2025-02-14 2024-09-30 13F/A-1 WESCO INTL COM 95082P105 488,028 -384,425 81,979 0.0059
2024-11-14 2024-09-30 13F WESCO INTL COM 95082P105 488,028 -384,425 81,979 0.0007
2025-05-14 2024-06-30 13F/A-2 WESCO INTL COM 95082P105 872,453 237,670 37.44 138,302 27.20 0.0107
2024-10-17 2024-06-30 13F/A-1 WESCO INTL COM 95082P105 872,453 237,670 138,302 0.0107
2024-08-14 2024-06-30 13F WESCO INTL COM 95082P105 872,453 237,670 138,302 0.0107
2024-10-17 2024-03-31 13F/A-2 WESCO INTL COM 95082P105 634,783 118,443 22.94 108,726 21.10 0.0087
2024-08-16 2024-03-31 13F/A-1 WESCO INTL COM 95082P105 634,783 118,443 108,726 0.0010
2024-05-15 2024-03-31 13F WESCO INTL COM 95082P105 634,783 118,443 108,726 0.0087
2024-08-16 2023-12-31 13F/A-1 WESCO INTL COM 95082P105 516,340 -81,021 -13.56 89,782 4.50 0.0079
2024-02-13 2023-12-31 13F WESCO INTL COM 95082P105 516,340 -81,021 89,782 0.0079
2023-11-15 2023-09-30 13F WESCO INTL COM 95082P105 597,361 58,918 10.94 85,913 -10.89 0.0087
2023-08-14 2023-06-30 13F WESCO INTL COM 95082P105 538,443 202 0.04 96,414 15.91 0.0095
2023-05-15 2023-03-31 13F WESCO INTL COM 95082P105 538,241 -14,682 -2.66 83,180 20.16 0.0089
2023-02-14 2022-12-31 13F WESCO INTL COM 95082P105 552,923 21,542 4.05 69,226 9.13 0.0079
2022-11-14 2022-09-30 13F WESCO INTL COM 95082P105 531,381 -48,754 -8.40 63,436 2.10 0.0086
2022-10-27 2022-06-30 13F/A-1 WESCO INTL COM 95082P105 580,135 239,220 70.17 62,133 40.05 0.0081
2022-08-15 2022-06-30 13F WESCO INTL COM 95082P105 580,135 239,220 62,133 0.0081
2022-10-27 2022-03-31 13F/A-1 WESCO INTL COM 95082P105 340,915 28,039 8.96 44,366 7.76 0.0060
2022-05-13 2022-03-31 13F WESCO INTL COM 95082P105 340,915 28,039 44,366 0.0060
2022-02-14 2021-12-31 13F WESCO INTL COM 95082P105 312,876 34,987 12.59 41,172 28.48 0.0051
2021-11-15 2021-09-30 13F WESCO INTL COM 95082P105 277,889 16,006 6.11 32,045 19.01 0.0043
2021-08-23 2021-06-30 13F/A-1 WESCO INTL COM 95082P105 261,883 79,671 43.72 26,927 70.78 0.0036
2021-08-16 2021-06-30 13F WESCO INTL COM 95082P105 261,883 79,671 26,927 0.0007
2021-05-17 2021-03-31 13F WESCO INTL COM 95082P105 182,212 -8,181 -4.30 15,767 5.50 0.0023
2021-02-16 2020-12-31 13F WESCO INTL COM 95082P105 190,393 56,378 42.07 14,945 153.39 0.0023
2020-11-13 2020-09-30 13F WESCO INTL COM 95082P105 134,015 -13,300 -9.03 5,898 14.06 0.0011
2020-08-14 2020-06-30 13F WESCO INTL COM 95082P105 147,315 116,185 373.23 5,171 626.26 0.0011
2020-05-26 2020-03-31 13F/A-1 WESCO INTL COM 95082P105 31,130 -41,897 -57.37 712 -83.58 0.0002
2020-05-15 2020-03-31 13F WESCO INTL COM 95082P105 31,130 -41,897 712 54.6964
2020-02-14 2019-12-31 13F WESCO INTL COM 95082P105 73,027 -21,486 -22.73 4,337 -3.94 0.0010
2019-11-14 2019-09-30 13F WESCO INTL COM 95082P105 94,513 9,664 11.39 4,515 5.07 0.0012
2019-08-14 2019-06-30 13F WESCO INTL COM 95082P105 84,849 -159,829 -65.32 4,297 -66.87 0.0011
2019-05-15 2019-03-31 13F WESCO INTL COM 95082P105 244,678 12,571 5.42 12,971 16.42 0.0037
2019-02-14 2018-12-31 13F WESCO INTL COM 95082P105 232,107 18,107 8.46 11,142 -15.27 0.0033
2019-04-23 2018-09-30 13F/A-2 WESCO INTL COM 95082P105 214,000 -80,883 -27.43 13,150 -21.90 0.0033
2018-11-20 2018-09-30 13F/A-1 WESCO INTL COM 95082P105 214,000 0 13,150 0.0033
2018-11-14 2018-09-30 13F WESCO INTL COM 95082P105 214,000 -80,883 13,150
2019-04-23 2018-06-30 13F/A-1 WESCO INTL COM 95082P105 294,883 -99,025 -25.14 16,838 -31.11 0.0045
2018-08-14 2018-06-30 13F WESCO INTL COM 95082P105 294,883 -99,025 16,838
2019-04-23 2018-03-31 13F/A-1 WESCO INTL COM 95082P105 393,908 -39,126 -9.04 24,442 -17.18 0.0068
2018-05-14 2018-03-31 13F WESCO INTL COM 95082P105 393,908 -39,126 24,442
2019-04-23 2017-12-31 13F/A-1 WESCO INTL COM 95082P105 433,034 108,122 33.28 29,511 55.93 0.0081
2018-02-14 2017-12-31 13F WESCO INTL COM 95082P105 433,034 108,122 29,511
2017-11-14 2017-09-30 13F WESCO INTL COM 95082P105 324,912 -12,946 -3.83 18,926 -2.23 0.0057
2017-08-11 2017-06-30 13F WESCO INTL COM 95082P105 337,858 207,373 158.92 19,358 113.31 0.0058
2017-05-22 2017-03-31 13F/A-1 WESCO INTL COM 95082P105 130,485 -38,312 -22.70 9,075 -19.21 0.0028
2017-05-12 2017-03-31 13F WESCO INTL COM 95082P105 130,485 9,075
2017-02-22 2016-12-31 13F/A-1 WESCO INTL COM 95082P105 168,797 141,903 527.64 11,233 579.55 0.0037
2017-02-13 2016-12-31 13F WESCO INTL COM 95082P105 168,797 11,233
2016-11-10 2016-09-30 13F WESCO INTL COM 95082P105 26,894 -191,246 -87.67 1,653 -85.28 0.0006
2016-08-12 2016-06-30 13F WESCO INTL COM 95082P105 218,140 151,527 227.47 11,232 208.49 0.0041
2016-05-12 2016-03-31 13F WESCO INTL COM 95082P105 66,613 -21,738 -24.60 3,641 -5.67 0.0014
2016-02-09 2015-12-31 13F WESCO INTL COM 95082P105 88,351 -337,082 -79.23 3,860 -80.48 0.0014
2016-02-08 2015-09-30 13F/A-1 WESCO INTL COM 95082P105 425,433 279,451 191.43 19,770 97.29 0.0073
2015-11-09 2015-09-30 13F WESCO INTL COM 95082P105 425,433 19,770
2015-08-12 2015-06-30 13F WESCO INTL COM 95082P105 145,982 127,315 682.03 10,021 667.89 0.0035
2015-05-14 2015-03-31 13F WESCO INTL COM 95082P105 18,667 -211,554 -91.89 1,305 -92.56 0.0005
2015-02-13 2014-12-31 13F WESCO INTL COM 95082P105 230,221 186,202 423.00 17,545 409.29 0.0064
2014-12-16 2014-09-30 13F/A-1 WESCO INTL COM 95082P105 44,019 -155,656 -77.95 3,445 -79.27 0.0013
2014-11-14 2014-09-30 13F WESCO INTL COM 95082P105 44,019 3,445
2014-05-13 2014-03-31 13F WESCO INTL COM 95082P105 199,675 152,031 319.10 16,616 282.95 0.0070
2014-02-13 2013-12-31 13F WESCO INTL COM 95082P105 47,644 -24,054 -33.55 4,339 -20.94 0.0018
2013-11-13 2013-09-30 13F WESCO INTL INC COM ST COM 95082P105 71,698 -45,675 -38.91 5,488 -31.19 0.0026
2013-08-08 2013-06-30 13F WESCO INTL INC COM ST COM 95082P105 117,373 117,373 7,976 0.0040
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.