WESCO INTERNATIONAL INC (WCC) Institutional Shareholders
WESCO INTERNATIONAL INC (WCC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $12.62B in WCC holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WCC tracked by InsiderSet, reporting ownership valued at approximately $2.57B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $3.23B, representing an estimated gain of +25.54% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 55% of the total disclosed WCC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Wellington Management Group Llp, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in WESCO INTERNATIONAL INC (WCC).
This page ranks the largest institutional WCC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
623
Total Reported Value
$12.62B
Largest Holder
Blackrock, Inc.
Largest Position
$2.57B
Insider Transactions (90d)
25
Latest Filing Quarter
Q2 2026
New Institutional Positions
44
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.05% | 9,390,627 | $2,569,463,514 | $3,225,586,468 | +$656,122,954 | +25.54% | |
| Wellington Management Group Llp | 0.18% | 3,600,115 | $985,063,468 | $1,236,603,501 | +$251,540,033 | +25.54% | |
| Dimensional Fund Advisors Lp | 0.13% | 2,233,127 | $610,968,567 | $767,056,793 | +$156,088,226 | +25.55% | |
| Vanguard Capital Management Llc | 0.01% | 2,187,476 | $598,537,183 | $751,376,131 | +$152,838,948 | +25.54% | |
| Vanguard Portfolio Management Llc | 0.03% | 2,073,992 | $567,485,691 | $712,395,512 | +$144,909,821 | +25.54% | |
| Invesco Ltd. | 0.06% | 1,509,549 | $413,042,798 | $518,514,986 | +$105,472,188 | +25.54% | |
| State Street Corp | 0.01% | 1,465,249 | $400,921,431 | $503,298,379 | +$102,376,948 | +25.54% | |
| Bank Of America Corp | 0.02% | 962,750 | $263,427,548 | $330,694,998 | +$67,267,450 | +25.54% | |
| Geode Capital Management, Llc | 0.02% | 938,251 | $256,785,690 | $322,279,836 | +$65,494,146 | +25.51% | |
| Bank Of New York Mellon Corp | 0.05% | 907,473 | $248,302,686 | $311,707,901 | +$63,405,215 | +25.54% | |
| Morgan Stanley | 0.01% | 711,353 | $194,640,771 | $244,342,642 | +$49,701,871 | +25.54% | |
| Allspring Global Investments Holdings, Llc | 0.29% | 611,245 | $172,652,267 | $209,956,545 | +$37,304,278 | +21.61% | |
| Lyrical Asset Management Lp | 2.54% | 607,408 | $166,198,977 | $208,638,574 | +$42,439,597 | +25.54% | |
| Alyeska Investment Group, L.P. | 0.44% | 562,270 | $153,848,317 | $193,134,122 | +$39,285,805 | +25.54% | |
| Barrow Hanley Mewhinney & Strauss Llc | 0.50% | 558,661 | $152,860,823 | $191,894,467 | +$39,033,644 | +25.54% | |
| New South Capital Management Inc | 7.30% | 557,062 | $152,423,304 | $191,345,226 | +$38,921,922 | +25.54% | |
| Fmr Llc | 0.01% | 507,820 | $138,949,808 | $174,431,092 | +$35,481,284 | +25.54% | |
| Aqr Capital Management Llc | 0.06% | 520,062 | $138,794,211 | $178,636,096 | +$39,841,885 | +28.71% | |
| Artisan Partners Limited Partnership | 0.20% | 450,009 | $123,131,401 | $154,573,591 | +$31,442,190 | +25.54% | |
| Northern Trust Corp | 0.02% | 434,246 | $118,818,392 | $149,159,159 | +$30,340,767 | +25.54% | |
| Raymond James Financial Inc | 0.04% | 423,527 | $115,717,301 | $145,477,289 | +$29,759,988 | +25.72% | |
| Davis Selected Advisers | 0.48% | 381,007 | $104,251,891 | $130,872,094 | +$26,620,203 | +25.53% | |
| Holocene Advisors, Lp | 0.25% | 379,344 | $103,796,105 | $130,300,871 | +$26,504,766 | +25.54% | |
| Charles Schwab Investment Management Inc | 0.02% | 379,113 | $103,732,899 | $130,221,524 | +$26,488,625 | +25.54% | |
| Nomura Asset Management International Inc. | 0.17% | 372,278 | $101,863,000 | $127,873,770 | +$26,010,770 | +25.54% | |
| Principal Financial Group Inc | 0.05% | 362,761 | $99,258,677 | $124,604,776 | +$25,346,099 | +25.54% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.13% | 357,465 | $97,801,317 | $122,785,653 | +$24,984,336 | +25.55% | |
| Clearbridge Investments, Llc | 0.08% | 322,372 | $88,207,360 | $110,731,558 | +$22,524,198 | +25.54% | |
| Copeland Capital Management, Llc | 1.96% | 321,625 | $88,003,304 | $110,474,971 | +$22,471,667 | +25.54% | |
| Jennison Associates Llc | 0.06% | 319,165 | $87,329,928 | $109,629,986 | +$22,300,058 | +25.54% | |
| Ameriprise Financial Inc | 0.02% | 311,715 | $85,291,899 | $107,070,985 | +$21,779,086 | +25.53% | |
| Vanguard Fiduciary Trust Co | 0.02% | 302,157 | $82,676,198 | $103,787,908 | +$21,111,710 | +25.54% | |
| Ubs Group Ag | 0.01% | 296,115 | $81,022,985 | $101,712,541 | +$20,689,556 | +25.54% | |
| Pointstate Capital Lp | 1.87% | 295,107 | $80,747,177 | $101,366,303 | +$20,619,126 | +25.54% | |
| Quantinno Capital Management Lp | 0.13% | 274,301 | $75,054,490 | $94,219,650 | +$19,165,160 | +25.53% | |
| Capital Research Global Investors | 0.01% | 273,590 | $74,859,696 | $93,975,429 | +$19,115,733 | +25.54% | |
| American Century Companies Inc | 0.04% | 270,238 | $73,942,540 | $92,824,051 | +$18,881,511 | +25.54% | |
| Envestnet Asset Management Inc | 0.02% | 263,497 | $72,097,963 | $90,508,585 | +$18,410,622 | +25.54% | |
| Nuveen, Llc | 0.02% | 259,291 | $70,947,203 | $89,063,866 | +$18,116,663 | +25.54% | |
| Swedbank Ab | 0.05% | 177,484 | $61,308,298 | $60,963,979 | -$344,319 | -0.56% | |
| Farmers & Merchants Investments Inc | 1.46% | 174,057 | $60,124,510 | $59,786,839 | -$337,671 | -0.56% | |
| Victory Capital Management Inc | 0.04% | 219,604 | $60,088,046 | $75,431,778 | +$15,343,732 | +25.54% | |
| Van Lanschot Kempen Investment Management N.V. | 0.46% | 189,951 | $51,974,393 | $65,246,269 | +$13,271,876 | +25.54% | |
| Sei Investments Co | 0.05% | 187,801 | $51,386,428 | $64,507,765 | +$13,121,337 | +25.53% | |
| Royal Bank Of Canada | 0.01% | 180,241 | $49,318,000 | $61,910,981 | +$12,592,981 | +25.53% | |
| Goldman Sachs Group Inc | 0.01% | 178,260 | $48,775,529 | $61,230,527 | +$12,454,998 | +25.54% | |
| Diamond Hill Capital Management Inc | 0.30% | 172,743 | $47,265,940 | $59,335,493 | +$12,069,553 | +25.54% | |
| Jones Financial Companies Lllp | 0.02% | 173,743 | $45,543,922 | $59,678,983 | +$14,135,061 | +31.04% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 156,450 | $42,807,849 | $53,739,011 | +$10,931,162 | +25.54% | |
| Vontobel Holding Ltd. | 0.14% | 146,944 | $40,206,817 | $50,473,795 | +$10,266,978 | +25.54% |
Frequently asked questions about WCC
Who owns the most WCC stock?
The largest holders of WCC are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for WESCO INTERNATIONAL INC (WCC).
Is WCC widely held by superinvestors?
Many widely followed stocks like WCC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly WCC is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.