WESCO International, Inc.
MX ˙ BMV ˙ US95082P1057
SecurityMX:WCC / WESCO International, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership4,872 shares
Latest Disclosed Value $ 1,334,052
Advisor Group Holdings, Inc. reports 13.14% increase in ownership of WCC / WESCO International, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 4,872 shares of WESCO International, Inc. (MX:WCC) valued at $1,334,052 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,306 shares of WESCO International, Inc.. This represents a change in shares of 13.14% 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 4,872 566 13.14 1,334 26.57 0.0011
2026-02-17 2025-12-31 13F WESCO INTL COM 95082P105 4,306 -1,296 -23.13 1,055 -12.09 0.0015
2025-11-14 2025-09-30 13F WESCO INTL COM 95082P105 5,602 1,673 42.58 1,200 67.46 0.0017
2025-09-04 2025-06-30 13F/A-1 ESCO INTL COM 95082P105 3,929 142 3.75 716 21.77 0.0013
2025-08-13 2025-06-30 13F ESCO INTL COM 95082P105 4,553 766 816 0.0009
2025-05-12 2025-03-31 13F WESCO INTL COM 95082P105 3,787 -741 -16.36 589 -25.29 0.0013
2025-06-06 2024-12-31 13F/A-1 WESCO INTL COM 95082P105 4,528 984 27.77 787 32.27 0.0018
2025-02-07 2024-12-31 13F WESCO INTL COM 95082P105 2,579 -965 412 0.0011
2024-11-13 2024-09-30 13F WESCO INTL COM 95082P105 3,544 -1,094 -23.59 596 -19.05 0.0013
2024-08-13 2024-06-30 13F WESCO INTL COM 95082P105 4,638 268 6.13 736 -1.87 0.0017
2024-05-10 2024-03-31 13F WESCO INTL COM 95082P105 4,370 -621 -12.44 749 -13.71 0.0017
2024-02-12 2023-12-31 13F WESCO INTL COM 95082P105 4,991 -8,557 -63.16 869 -55.44 0.0015
2023-11-13 2023-09-30 13F WESCO INTL COM 95082P105 13,548 2,555 23.24 1,949 -1.07 0.0029
2023-08-21 2023-06-30 13F/A-1 WESCO INTL COM 95082P105 10,993 -3,689 -25.13 1,969 -13.15 0.0035
2023-08-10 2023-06-30 13F WESCO INTL COM 95082P105 11,883 -2,799 1,968 0.0005
2023-05-12 2023-03-31 13F WESCO INTL COM 95082P105 14,682 3,785 34.73 2,267 66.20 0.0043
2023-02-10 2022-12-31 13F WESCO INTL COM 95082P105 10,897 2,325 27.12 1,365 33.33 0.0028
2022-11-14 2022-09-30 13F WESCO INTL COM 95082P105 8,572 -2,973 -25.75 1,023 -17.30 0.0023
2022-08-10 2022-06-30 13F WESCO INTL COM 95082P105 11,545 -2,466 -17.60 1,237 -32.59 0.0027
2022-05-04 2022-03-31 13F WESCO INTL COM 95082P105 14,011 3,967 39.50 1,835 38.91 0.0036
2022-02-03 2021-12-31 13F WESCO INTL COM 95082P105 10,044 4,932 96.48 1,321 123.90 0.0025
2021-11-05 2021-09-30 13F WESCO INTL COM 95082P105 5,112 767 17.65 590 32.29 0.0012
2021-08-02 2021-06-30 13F WESCO INTL COM 95082P105 4,345 177 4.25 446 24.23 0.0010
2021-05-13 2021-03-31 13F WESCO INTL COM 95082P105 4,168 -11,200 -72.88 359 -70.23 0.0009
2021-02-10 2020-12-31 13F WESCO INTL COM 95082P105 15,368 12,203 385.56 1,206 773.91 0.0032
2020-11-12 2020-09-30 13F WESCO INTL COM 95082P105 3,165 -944 -22.97 138 -4.83 0.0004
2020-08-14 2020-06-30 13F WESCO INTL COM 95082P105 4,109 1,612 64.56 145 291.89 0.0005
2020-05-18 2020-03-31 13F WESCO INTL COM 95082P105 2,497 2,497 37 0.0002
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.