WESCO International, Inc.
MX ˙ BMV ˙ US95082P1057
SecurityMX:WCC / WESCO International, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership3,993,934 shares
Ownership 7.80%
BlackRock, Inc. ownership in WCC / WESCO International, Inc.

2024-01-26 - BlackRock, Inc. has filed an SC 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,993,934 shares of WESCO International, Inc. (MX:WCC). This represents 7.8 percent ownership of the company. In their previous filing dated 2022-10-07 , BlackRock, Inc. had reported owning 2,518,738 shares, indicating an increase of 58.57 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2024-01-26 2024-01-26 13G 2,518,738 3,993,934 58.57 7.80 56.00
2022-10-07 2022-10-07 13G/A 3,288,844 2,518,738 -23.42 5.00 -23.08
2022-02-01 2022-02-01 13G/A 3,549,045 3,288,844 -7.33 6.50 -8.45
2021-02-01 2021-02-01 13G/A 2,191,595 3,549,045 61.94 7.10 36.54
2020-02-07 2020-02-07 13G 1,583,226 2,191,595 38.43 5.20 44.44
2015-08-07 2015-08-07 13G/A 1,583,226 3.60
2015-02-02 2015-02-02 13G 2,732,279 6.10

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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 9,390,627 1,372,533 17.12 2,569,464 30.99 0.0449
2026-02-12 2025-12-31 13F WESCO INTL COM 95082P105 8,018,094 2,047,872 34.30 1,961,547 55.35 0.0332
2025-11-12 2025-09-30 13F WESCO INTL COM 95082P105 5,970,222 1,125,151 23.22 1,262,702 40.72 0.0221
2025-08-12 2025-06-30 13F WESCO INTL COM 95082P105 4,845,071 391,191 8.78 897,307 29.73 0.0171
2025-05-02 2025-03-31 13F WESCO INTL COM 95082P105 4,453,880 335,004 8.13 691,688 -7.20 0.0145
2025-02-07 2024-12-31 13F WESCO INTL COM 95082P105 4,118,876 -59,404 -1.42 745,352 6.20 0.0151
2024-11-13 2024-09-30 13F WESCO INTL COM 95082P105 4,178,280 -496,945 -10.63 701,867 -5.30 0.0147
2024-08-13 2024-06-30 13F WESCO INTL COM 95082P105 4,675,225 317,231 7.28 741,117 -0.71 0.0168
2024-05-10 2024-03-31 13F WESCO INTL COM 95082P105 4,357,994 364,060 9.12 746,437 7.48 0.0174
2024-02-13 2023-12-31 13F WESCO INTL COM 95082P105 3,993,934 -70,913 -1.74 694,465 18.79 0.0177
2023-11-13 2023-09-30 13F WESCO INTL COM 95082P105 4,064,847 -67,918 -1.64 584,606 -21.00 0.0168
2023-08-11 2023-06-30 13F WESCO INTL COM 95082P105 4,132,765 1,864,752 82.22 740,013 111.13 0.0204
2023-05-12 2023-03-31 13F WESCO INTL COM 95082P105 2,268,013 -134,618 -5.60 350,499 16.52 0.0103
2023-02-13 2022-12-31 13F WESCO INTL COM 95082P105 2,402,631 -116,107 -4.61 300,809 0.04 0.0094
2022-11-14 2022-09-30 13F WESCO INTL COM 95082P105 2,518,738 -81,769 -3.14 300,686 7.96 0.0102
2022-08-12 2022-06-30 13F WESCO INTL COM 95082P105 2,600,507 -755,825 -22.52 278,515 -36.24 0.0089
2022-05-12 2022-03-31 13F WESCO INTL COM 95082P105 3,356,332 67,488 2.05 436,793 0.93 0.0118
2022-02-10 2021-12-31 13F WESCO INTL COM 95082P105 3,288,844 104,420 3.28 432,779 17.85 0.0110
2021-11-09 2021-09-30 13F WESCO INTL COM 95082P105 3,184,424 -91,634 -2.80 367,228 9.02 0.0103
2021-08-11 2021-06-30 13F WESCO INTL COM 95082P105 3,276,058 -696,337 -17.53 336,844 -2.00 0.0094
2021-05-07 2021-03-31 13F WESCO INTL COM 95082P105 3,972,395 423,350 11.93 343,732 23.38 0.0101
2021-02-05 2020-12-31 13F WESCO INTL COM 95082P105 3,549,045 181,968 5.40 278,600 87.97 0.0089
2020-11-06 2020-09-30 13F WESCO INTL COM 95082P105 3,367,077 -478,817 -12.45 148,219 9.77 0.0055
2020-08-14 2020-06-30 13F WESCO INTL COM 95082P105 3,845,894 1,338,440 53.38 135,029 135.67 0.0054
2020-05-01 2020-03-31 13F WESCO INTL COM 95082P105 2,507,454 315,859 14.41 57,295 -55.98 0.0028
2020-02-13 2019-12-31 13F WESCO INTL COM 95082P105 2,191,595 133,063 6.46 130,157 32.36 0.0050
2019-11-08 2019-09-30 13F WESCO INTL COM 95082P105 2,058,532 117,466 6.05 98,336 0.02 0.0041
2019-08-22 2019-06-30 13F/A-1 WESCO INTL COM 95082P105 1,941,066 -594,629 -23.45 98,315 -26.86 0.0042
2019-08-13 2019-06-30 13F WESCO INTL COM 95082P105 1,941,066 -594,629 98,315
2019-05-09 2019-03-31 13F WESCO INTL COM 95082P105 2,535,695 473,912 22.99 134,417 35.82 0.0060
2019-02-08 2018-12-31 13F WESCO INTL COM 95082P105 2,061,783 27,672 1.36 98,966 -20.82 0.0050
2018-11-09 2018-09-30 13F WESCO INTL COM 95082P105 2,034,111 -58,779 -2.81 124,996 4.60 0.0054
2018-08-09 2018-06-30 13F WESCO INTL COM 95082P105 2,092,890 137,725 7.04 119,504 -1.50 0.0055
2018-05-09 2018-03-31 13F WESCO INTL COM 95082P105 1,955,165 -51,723 -2.58 121,318 -11.30 0.0058
2018-02-09 2017-12-31 13F WESCO INTL COM 95082P105 2,006,888 70,791 3.66 136,769 21.27 0.0065
2017-11-14 2017-09-30 13F WESCO INTL COM 95082P105 1,936,097 80,776 4.35 112,776 6.08 0.0057
2017-08-10 2017-06-30 13F WESCO INTL COM 95082P105 1,855,321 17,031 0.93 106,309 -16.85 0.0056
2017-05-12 2017-03-31 13F WESCO INTL COM 95082P105 1,838,290 1,822,510 11,549.49 127,855 12,076.67 0.0070
2017-02-10 2016-12-31 13F WESCO INTL COM 95082P105 15,780 -1,388 -8.08 1,050 -0.57 0.0015
2016-11-08 2016-09-30 13F WESCO INTL COM 95082P105 17,168 2,902 20.34 1,056 43.67 0.0015
2016-08-10 2016-06-30 13F WESCO INTL COM 95082P105 14,266 7,271 103.95 735 92.41 0.0011
2016-05-10 2016-03-31 13F WESCO INTL COM 95082P105 6,995 4,521 182.74 382 253.70 0.0006
2016-02-11 2015-12-31 13F WESCO INTL COM 95082P105 2,474 136 5.82 108 0.00 0.0002
2015-11-13 2015-09-30 13F WESCO INTL COM 95082P105 2,338 -129,341 -98.22 108 -98.81 0.0002
2015-08-07 2015-06-30 13F WESCO INTL COM 95082P105 131,679 -42,702 -24.49 9,038 -25.85 0.0134
2015-05-13 2015-03-31 13F WESCO INTL COM 95082P105 174,381 55,219 46.34 12,188 34.21 0.0168
2015-02-09 2014-12-31 13F WESCO INTL COM 95082P105 119,162 48,648 68.99 9,081 64.54 0.0130
2014-10-29 2014-09-30 13F WESCO INTL COM 95082P105 70,514 7,743 12.34 5,519 1.81 0.0081
2014-08-06 2014-06-30 13F WESCO INTL COM 95082P105 62,771 59,187 1,651.42 5,421 1,719.13 0.0081
2014-05-02 2014-03-31 13F WESCO INTL COM 95082P105 3,584 -91 -2.48 298 -11.04 0.0005
2014-02-12 2013-12-31 13F WESCO INTL COM 95082P105 3,675 -31 -0.84 335 17.96 0.0005
2013-11-12 2013-09-30 13F WESCO INTL COM 95082P105 3,706 -1,804 -32.74 284 -24.06 0.0005
2013-08-13 2013-06-30 13F WESCO INTL COM 95082P105 5,510 5,510 374 0.0007
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.