WESCO International, Inc.
MX ˙ BMV ˙ US95082P1057
SecurityMX:WCC / WESCO International, Inc.
InstitutionDavis Selected Advisers
Latest Disclosed Ownership381,007 shares
Latest Disclosed Value $ 104,251,891
Davis Selected Advisers reports 4.53% increase in ownership of WCC / WESCO International, Inc.

On May 7, 2026 - Davis Selected Advisers filed a 13F-HR form disclosing ownership of 381,007 shares of WESCO International, Inc. (MX:WCC) valued at $104,251,891 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 364,502 shares of WESCO International, Inc.. This represents a change in shares of 4.53% 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)
2026-05-07 2026-03-31 13F Wesco International Common Stock 95082P105 381,007 16,505 4.53 104,252 16.91 0.4786
2026-02-02 2025-12-31 13F Wesco International Common Stock 95082P105 364,502 71,932 24.59 89,172 44.11 0.4008
2025-12-29 2025-09-30 13F/A-1 Wesco International Common Stock 95082P105 292,570 1,824 0.63 61,879 14.92 0.3230
2025-11-12 2025-09-30 13F Wesco International Common Stock 95082P105 292,570 1,824 61,879 0.3230
2025-08-08 2025-06-30 13F Wesco International Common 95082P105 290,746 32,243 12.47 53,846 34.13 0.2879
2025-05-12 2025-03-31 13F Wesco International Common 95082P105 258,503 1,516 0.59 40,146 -13.67 0.2314
2025-02-07 2024-12-31 13F Wesco International Common 95082P105 256,987 967 0.38 46,504 8.13 0.2703
2024-11-08 2024-09-30 13F Wesco International Common 95082P105 256,020 62,374 32.21 43,006 40.10 0.2412
2024-08-07 2024-06-30 13F Wesco International Common 95082P105 193,646 2,824 1.48 30,697 -6.08 0.1783
2024-05-14 2024-03-31 13F/A-1 Wesco International Common 95082P105 190,822 3,468 1.85 32,684 0.33 0.1832
2024-05-13 2024-03-31 13F Wesco International Common 95082P105 190,822 3,468 32,684 0.1832
2024-02-12 2023-12-31 13F Wesco International Common 95082P105 187,354 53,844 40.33 32,578 69.66 0.1841
2023-11-09 2023-09-30 13F Wesco International Common 95082P105 133,510 248 0.19 19,201 -19.53 0.1204
2023-08-09 2023-06-30 13F Wesco International Common 95082P105 133,262 85,614 179.68 23,862 224.07 0.1454
2023-05-08 2023-03-31 13F Wesco International Common 95082P105 47,648 -4,257 -8.20 7,364 13.31 0.0487
2023-02-10 2022-12-31 13F Wesco International Common 95082P105 51,905 9,284 21.78 6,499 27.71 0.0442
2022-11-10 2022-09-30 13F Wesco International Common 95082P105 42,621 42,621 5,088 0.0362
2017-05-12 2017-03-31 13F WESCO International Common 95082P105 0 -202,932 -100.00 0 -100.00
2017-02-13 2016-12-31 13F WESCO International Common 95082P105 202,932 -291,602 -58.97 13,505 -55.59 0.0591
2016-11-14 2016-09-30 13F Wesco International Common 95082P105 494,534 15,977 3.34 30,409 23.41 0.1326
2016-08-12 2016-06-30 13F Wesco International Common 95082P105 478,557 -2,571 -0.53 24,641 -6.32 0.1085
2016-05-13 2016-03-31 13F Wesco International Common 95082P105 481,128 183,346 61.57 26,303 102.22 0.1164
2016-02-12 2015-12-31 13F Wesco International Common 95082P105 297,782 863 0.29 13,007 -5.73 0.0543
2015-11-12 2015-09-30 13F Wesco International Common 95082P105 296,919 5,463 1.87 13,798 -31.03 0.0572
2015-08-13 2015-06-30 13F Wesco International Common 95082P105 291,456 -855 -0.29 20,006 -2.07 0.0700
2015-05-12 2015-03-31 13F Wesco International Common 95082P105 292,311 292,311 20,429 0.0696
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.