WESCO International, Inc.
US ˙ NYSE ˙ US95082P1057

SecurityWCC / WESCO International, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership231,405 shares
Latest Disclosed Value $ 63,318
Natixis Advisors, L.p. reports 20.26% increase in ownership of WCC / WESCO International, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 231,405 shares of WESCO International, Inc. (US:WCC) valued at $63,317,036 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 192,415 shares of WESCO International, Inc.. This represents a change in shares of 20.26% during the quarter. The current value of the position is $86,665,801 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)
2026-05-13 2026-03-31 13F WESCO INTL COM 95082P105 231,405 38,990 20.26 63 34.04 0.0881
2026-02-10 2025-12-31 13F WESCO INTL COM 95082P105 192,415 323 0.17 47 17.50 0.0667
2025-11-13 2025-09-30 13F WESCO INTL COM 95082P105 192,092 33,316 20.98 41 37.93 0.0593
2025-08-13 2025-06-30 13F WESCO INTL COM 95082P105 158,776 98,701 164.30 29 222.22 0.0467
2025-05-08 2025-03-31 13F WESCO INTL COM 95082P105 60,075 20,608 52.22 9 28.57 0.0172
2025-02-10 2024-12-31 13F WESCO INTL COM 95082P105 39,467 411 1.05 7 16.67 0.0133
2024-11-06 2024-09-30 13F WESCO INTL COM 95082P105 39,056 5,158 15.22 7 20.00 0.0128
2024-08-01 2024-06-30 13F WESCO INTL COM 95082P105 33,898 3,211 10.46 5 0.00 0.0117
2024-04-25 2024-03-31 13F WESCO INTL COM 95082P105 30,687 5,282 20.79 5 25.00 0.0121
2024-02-06 2023-12-31 13F WESCO INTL INC COM COM 95082P105 25,405 -1,762 -6.49 4 33.33 0.0116
2023-11-13 2023-09-30 13F WESCO INTL COM 95082P105 27,167 4,904 22.03 4 0.00 0.0119
2023-08-15 2023-06-30 13F WESCO INTL COM 95082P105 22,263 22,263 4 0.0123
2019-05-15 2019-03-31 13F/A-1 WESCO INTL COM 95082P105 0 -27,861 -100.00 0 -100.00
2019-02-13 2018-12-31 13F/A-1 WESCO INTL COM 95082P105 27,861 4,623 19.89 1,338 -6.30 0.0132
2019-02-13 2018-12-31 13F WESCO INTL COM 95082P105 27,861 4,623 1,338
2018-11-13 2018-09-30 13F WESCO INTL COM 95082P105 23,238 23,238 1,428 0.0126
2017-07-27 2017-06-30 13F WESCO INTL COM 95082P105 0 -91,083 -100.00 0 -100.00
2017-05-12 2017-03-31 13F WESCO INTL COM 95082P105 91,083 -1,093 -1.19 6,335 3.26 0.0702
2017-02-07 2016-12-31 13F WESCO INTL COM 95082P105 92,176 -11,905 -11.44 6,135 -4.14 0.0738
2016-11-04 2016-09-30 13F WESCO INTL COM 95082P105 104,081 18,395 21.47 6,400 45.06 0.0829
2016-08-01 2016-06-30 13F WESCO INTL COM 95082P105 85,686 11,842 16.04 4,412 9.32 0.0610
2016-05-06 2016-03-31 13F WESCO INTL COM 95082P105 73,844 73,844 0.00 4,036 0.0604
2016-02-12 2015-12-31 13F WESCO INTL COM 95082P105 0 0 0 0.0000
2015-11-12 2015-09-30 13F WESCO INTL COM 95082P105 0 -34,657 -100.00 0 -100.00
2015-08-14 2015-06-30 13F WESCO INTL COM 95082P105 34,657 -24,992 -41.90 2,379 -42.94 0.0404
2015-05-15 2015-03-31 13F WESCO INTL COM 95082P105 59,649 326 0.55 4,169 -7.79 0.0732
2015-02-05 2014-12-31 13F WESCO INTL COM 95082P105 59,323 -54,654 -47.95 4,521 -49.32 0.0846
2014-11-03 2014-09-30 13F WESCO INTL COM 95082P105 113,977 -94,634 -45.36 8,920 -50.50 0.1790
2014-08-13 2014-06-30 13F WESCO INTL COM 95082P105 208,611 35,020 20.17 18,019 24.73 0.2582
2014-05-13 2014-03-31 13F WESCO INTL COM 95082P105 173,591 -37,243 -17.66 14,446 -24.76 0.2223
2014-02-12 2013-12-31 13F WESCO INTL COM 95082P105 210,834 -83,858 -28.46 19,201 -14.86 0.3143
2013-10-30 2013-09-30 13F WESCO INTL COM 95082P105 294,692 -47,255 -13.82 22,553 -2.96 0.4153
2013-07-19 2013-06-30 13F WESCO INTL COM 95082P105 341,947 341,947 23,240 0.4630
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.