WESCO International, Inc.
US ˙ NYSE ˙ US95082P1057

SecurityWCC / WESCO International, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership24,466 shares
Latest Disclosed Value $ 6,694
Amalgamated Bank reports 7.19% increase in ownership of WCC / WESCO International, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 24,466 shares of WESCO International, Inc. (US:WCC) valued at $6,694,387 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 22,825 shares of WESCO International, Inc.. This represents a change in shares of 7.19% during the quarter. The current value of the position is $9,163,006 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-08 2026-03-31 13F WESCO INTERNATIONAL COM 95082P105 24,466 1,641 7.19 7 20.00 0.0512
2026-02-05 2025-12-31 13F WESCO INTERNATIONAL COM 95082P105 22,825 795 3.61 6 25.00 0.0403
2025-10-29 2025-09-30 13F WESCO INTERNATIONAL COM 95082P105 22,030 1,768 8.73 5 33.33 0.0333
2025-08-04 2025-06-30 13F WESCO INTERNATIONAL COM 95082P105 20,262 21 0.10 4 0.00 0.0290
2025-04-25 2025-03-31 13F WESCO INTERNATIONAL COM 95082P105 20,241 -957 -4.51 3 0.00 0.0269
2025-02-04 2024-12-31 13F WESCO INTERNATIONAL COM 95082P105 21,198 -75 -0.35 4 0.00 0.0315
2024-10-30 2024-09-30 13F WESCO INTERNATIONAL COM 95082P105 21,273 -6,104 -22.30 4 -25.00 0.0294
2024-08-12 2024-06-30 13F WESCO INTERNATIONAL COM 95082P105 27,377 -2,672 -8.89 4 -20.00 0.0370
2024-04-23 2024-03-31 13F WESCO INTERNATIONAL COM 95082P105 30,049 -3,322 -9.95 5 0.00 0.0440
2024-02-06 2023-12-31 13F WESCO INTERNATIONAL COM 95082P105 33,371 -850 -2.48 6 25.00 0.0463
2023-11-08 2023-09-30 13F WESCO INTERNATIONAL COM 95082P105 34,221 4,733 16.05 5 -20.00 0.0419
2023-08-11 2023-06-30 13F WESCO INTERNATIONAL COM 95082P105 29,488 21,185 255.15 5 400.00 0.0427
2023-05-02 2023-03-31 13F WESCO INTERNATIONAL COM 95082P105 8,303 -7,638 -47.91 1 0.00 0.0109
2023-02-10 2022-12-31 13F WESCO INTERNATIONAL COM 95082P105 15,941 6,763 73.69 2 -99.91 0.0178
2022-11-09 2022-09-30 13F WESCO INTERNATIONAL COM 95082P105 9,178 -4,845 -34.55 1,096 -27.03 0.0106
2022-08-15 2022-06-30 13F WESCO INTERNATIONAL COM 95082P105 14,023 8,279 144.13 1,502 100.80 0.0140
2022-08-25 2022-03-31 13F/A-1 WESCO INTERNATIONAL COM 95082P105 5,744 -395 -6.43 748 -7.43 0.0058
2022-06-30 2022-03-31 13F WESCO INTERNATIONAL COM 95082P105 5,744 -395 748 0.0059
2022-02-15 2021-12-31 13F/A-1 WESCO INTERNATIONAL COM 95082P105 6,139 -58 -0.94 808 13.01 0.0060
2022-02-15 2021-12-31 13F WESCO INTERNATIONAL COM 95082P105 6,139 -58 808 0.0060
2021-10-29 2021-09-30 13F WESCO INTERNATIONAL COM 95082P105 6,197 -440 -6.63 715 4.84 0.0060
2021-08-16 2021-06-30 13F WESCO INTERNATIONAL COM 95082P105 6,637 2,681 67.77 682 99.42 0.0055
2021-05-13 2021-03-31 13F WESCO INTERNATIONAL COM 95082P105 3,956 -294 -6.92 342 2.40 0.0128
2021-02-12 2020-12-31 13F WESCO INTERNATIONAL COM 95082P105 4,250 4,250 334 0.0127
2020-08-10 2020-06-30 13F WESCO INTERNATIONAL COM 95082P105 0 -9,037 -100.00 0 -100.00
2020-05-13 2020-03-31 13F WESCO INTERNATIONAL COM 95082P105 9,037 -232 -2.50 206 -62.55 0.0050
2020-02-13 2019-12-31 13F WESCO INTERNATIONAL COM 95082P105 9,269 455 5.16 550 30.64 0.0101
2019-11-13 2019-09-30 13F WESCO INTERNATIONAL COM 95082P105 8,814 -129 -1.44 421 -7.06 0.0089
2019-08-14 2019-06-30 13F WESCO INTERNATIONAL COM 95082P105 8,943 -46 -0.51 453 -5.03 0.0106
2019-05-15 2019-03-31 13F WESCO INTERNATIONAL COM 95082P105 8,989 247 2.83 477 13.57 0.0116
2019-02-15 2018-12-31 13F WESCO INTERNATIONAL COM 95082P105 8,742 -99 -1.12 420 -22.65 0.0119
2018-11-14 2018-09-30 13F WESCO INTERNATIONAL COM 95082P105 8,841 -71 -0.80 543 6.68 0.0134
2018-07-18 2018-06-30 13F WESCO INTERNATIONAL COM 95082P105 8,912 -19 -0.21 509 -8.12 0.0124
2018-05-22 2018-03-31 13F WESCO INTERNATIONAL COM 95082P105 8,931 -82 -0.91 554 -9.77 0.0147
2018-02-13 2017-12-31 13F WESCO INTERNATIONAL COM 95082P105 9,013 222 2.53 614 19.92 0.0166
2017-11-09 2017-09-30 13F WESCO INTERNATIONAL COM 95082P105 8,791 2 0.02 512 1.59 0.0159
2017-08-10 2017-06-30 13F WESCO INTERNATIONAL COM 95082P105 8,789 1,831 26.32 504 4.13 0.0165
2017-05-12 2017-03-31 13F WESCO INTERNATIONAL COM 95082P105 6,958 225 3.34 484 8.04 0.0241
2017-02-14 2016-12-31 13F WESCO INTERNATIONAL COM 95082P105 6,733 1,628 31.89 448 42.68 0.0202
2016-11-15 2016-09-30 13F/A-1 WESCO INTERNATIONAL COM 95082P105 5,105 15 0.29 314 8.65 0.0182
2016-08-16 2016-06-30 13F WESCO INTERNATIONAL COM 95082P105 5,090 -52 -1.01 289 2.85 0.0167
2016-05-11 2016-03-31 13F WESCO INTERNATIONAL COM 95082P105 5,142 457 9.75 281 37.07 0.0274
2016-02-10 2015-12-31 13F WESCO INTERNATIONAL COM 95082P105 4,685 -325 -6.49 205 -12.02 0.0253
2015-11-04 2015-09-30 13F WESCO INTERNATIONAL COM 95082P105 5,010 50 1.01 233 -31.47 0.0244
2015-07-10 2015-06-30 13F WESCO INTERNATIONAL COM 95082P105 4,960 4,960 340 0.0334
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.