DaveManuel.com · Institutional Ownership · Who Owns It
WESCO INTL INC (WCC)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
712
Reporting holders
$16.4B
Reported value
96.5%
Of shares outstanding
0.5%
Calls
0.3%
Puts
+81
Holder change
Institutions report 47,041,215 shares against 48,732,854 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $3.1B | 8,958,787 | 0.05% | 8q | -4.6%-$149.2M |
| VANGUARD CAPITAL MANAGEMENT LLC | $760.1M | 2,200,573 | 0.02% | 2q | +0.6%+$4.5M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $715.8M | 2,072,241 | 0.03% | 2q | HELD |
| WELLINGTON MANAGEMENT GROUP LLP | $697.2M | 2,018,251 | 0.12% | 7q | -43.9%-$546.4M |
| DIMENSIONAL FUND ADVISORS LP | $695.6M | 2,013,677 | 0.13% | 31q | -9.8%-$75.8M |
| STATE STREET CORP | $523.6M | 1,515,816 | 0.02% | 31q | +3.5%+$17.5M |
| JANE STREET GROUP, LLC | $349.7M incl. $22.7M options CALL+PUT | 946,593 | 0.03% | 25q | +7122.0%+$344.8M |
| Invesco Ltd. | $335.6M | 971,590 | 0.03% | 31q | -35.6%-$185.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $320.6M | 927,915 | 0.02% | 31q | -1.1%-$3.6M |
| NORGES BANK | $297.2M | 860,367 | 0.03% | 32q | +35.2%+$77.4M |
| BANK OF AMERICA CORP /DE/ | $296.3M | 857,783 | 0.02% | 31q | -10.9%-$36.3M |
| Bank of New York Mellon Corp | $249.5M | 722,298 | 0.04% | 31q | -20.4%-$64.0M |
| BAUPOST GROUP LLC/MA | $229.0M | 662,881 | 4.23% | 10q | -53.9%-$267.4M |
| Alyeska Investment Group, L.P. | $225.8M | 653,591 | 0.58% | 5q | +16.2%+$31.5M |
| MORGAN STANLEY | $219.2M | 634,473 | 0.01% | 35q | -10.8%-$26.6M |
| CITIGROUP INC | $215.5M | 623,906 | 0.07% | 31q | +780.9%+$191.1M |
| AQR CAPITAL MANAGEMENT LLC | $213.9M | 619,132 | 0.07% | 31q | +19.0%+$34.2M |
| LYRICAL ASSET MANAGEMENT LP | $199.0M | 575,980 | 2.52% | 17q | -5.2%-$10.9M |
| FMR LLC | $194.4M | 562,884 | 0.01% | 31q | +10.8%+$19.0M |
| NEW SOUTH CAPITAL MANAGEMENT INC | $176.9M | 512,074 | 7.75% | 31q | -8.1%-$15.5M |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | $175.2M | 507,163 | 0.53% | 6q | -9.2%-$17.8M |
| CITADEL ADVISORS LLC | $165.5M incl. $25.5M options CALL+PUT | 405,381 | 0.02% | 31q | +6706.3%+$163.1M |
| Artisan Partners Limited Partnership | $147.4M | 426,573 | 0.23% | 3q | -5.2%-$8.1M |
| NORTHERN TRUST CORP | $145.7M | 421,738 | 0.02% | 31q | -2.9%-$4.3M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $138.4M | 400,633 | 0.02% | 31q | +5.7%+$7.4M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $134.1M | 388,187 | 0.16% | 9q | +8.6%+$10.6M |
| RAYMOND JAMES FINANCIAL INC | $134.0M incl. $192.0K options PUT | 387,475 | 0.04% | 7q | -8.5%-$12.5M |
| Davis Selected Advisers | $125.5M | 363,915 | 0.54% | 16q | -4.5%-$5.9M |
| JENNISON ASSOCIATES LLC | $111.4M | 322,583 | 0.07% | 7q | +1.1%+$1.2M |
| Nykredit A/S | $110.5M | 319,905 | 0.42% | new | FIRST |
| JPMORGAN CHASE & CO | $109.8M | 317,553 | 0.01% | 31q | +14.6%+$14.0M |
| VANGUARD FIDUCIARY TRUST CO | $106.5M | 308,187 | 0.02% | 2q | +2.0%+$2.1M |
| PRINCIPAL FINANCIAL GROUP INC | $106.2M | 307,582 | 0.05% | 31q | -15.2%-$19.1M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $103.0M | 298,199 | 0.15% | 3q | -19.9%-$25.6M |
| Quantinno Capital Management LP | $99.1M | 286,831 | 0.12% | 19q | +4.6%+$4.3M |
| Clearbridge Investments, LLC | $96.1M | 278,062 | 0.08% | 9q | -13.7%-$15.3M |
| GOLDMAN SACHS GROUP INC | $92.7M | 268,449 | 0.01% | 31q | +50.6%+$31.2M |
| Nuveen, LLC | $92.4M | 267,393 | 0.02% | 6q | +3.1%+$2.8M |
| AMERICAN CENTURY COMPANIES INC | $90.8M | 262,932 | 0.04% | 20q | -2.7%-$2.5M |
| Capital Research Global Investors | $90.0M | 260,503 | 0.01% | 5q | -4.8%-$4.5M |
| ENVESTNET ASSET MANAGEMENT INC | $83.0M | 240,378 | 0.02% | 25q | -8.8%-$8.0M |
| Merewether Investment Management, LP | $80.6M | 233,424 | 1.52% | new | NEW |
| Holocene Advisors, LP | $80.6M | 233,193 | 0.18% | 2q | -38.5%-$50.5M |
| Point72 Asset Management, L.P. | $75.5M | 218,675 | 0.08% | 10q | +84.7%+$34.6M |
| Qube Research & Technologies Ltd | $73.8M | 213,544 | 0.07% | new | NEW |
| Copeland Capital Management, LLC | $73.7M | 213,242 | 1.51% | 10q | -33.7%-$37.4M |
| VICTORY CAPITAL MANAGEMENT INC | $69.5M | 201,291 | 0.04% | 31q | -8.3%-$6.3M |
| Allspring Global Investments Holdings, LLC | $68.8M | 214,636 | 0.11% | 19q | -64.9%-$127.2M |
| UBS Group AG | $63.9M | 184,951 | 0.01% | 31q | -37.5%-$38.4M |
| ROYAL BANK OF CANADA | $63.6M | 184,065 | 0.01% | 31q | +2.1%+$1.3M |
| JONES FINANCIAL COMPANIES LLLP | $62.6M | 180,092 | 0.03% | 9q | +3.7%+$2.2M |
| NATIXIS ADVISORS, LLC | $62.3M | 180,371 | 0.07% | 13q | -22.1%-$17.6M |
| Swedbank AB | $61.3M | 177,484 | 0.05% | 9q | HELD |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $61.3M incl. $60.2M options CALL+PUT | 2,941 | 0.00% | 31q | -66.5%-$121.5M |
| WELLS FARGO & COMPANY/MN | $60.4M | 174,732 | 0.01% | 31q | +26.5%+$12.6M |
| FARMERS & MERCHANTS INVESTMENTS INC | $60.1M | 174,057 | 1.46% | 26q | -0.9%-$532.0K |
| Thrivent Financial for Lutherans | $57.2M | 165,530 | 0.10% | 23q | -13.8%-$9.1M |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | $56.6M | 163,955 | 0.43% | 4q | -13.7%-$9.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $53.1M | 153,650 | 0.01% | 31q | -1.8%-$967.2K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $51.3M | 148,569 | 0.05% | 5q | +3.4%+$1.7M |
| Vontobel Holding Ltd. | $50.2M | 145,266 | 0.16% | 4q | -1.1%-$579.6K |
| Gotham Asset Management, LLC | $47.1M | 136,422 | 0.11% | 24q | +12.7%+$5.3M |
| RHUMBLINE ADVISERS | $43.7M | 126,531 | 0.03% | 31q | -0.7%-$301.9K |
| HRT FINANCIAL LP | $43.2M | 125,063 | 0.08% | new | NEW |
| SEI INVESTMENTS CO | $43.0M | 124,600 | 0.04% | 31q | -33.7%-$21.8M |
| Ensign Peak Advisors, Inc | $42.0M | 121,666 | 0.07% | 19q | HELD |
| SEIZERT CAPITAL PARTNERS, LLC | $41.9M | 121,235 | 1.73% | 7q | -4.2%-$1.8M |
| Diamond Hill Capital Management, LLC (Investment Advisor) | $41.6M | 120,317 | 0.33% | 31q | -30.3%-$18.1M |
| Russell Investments Group, Ltd. | $41.3M | 119,684 | 0.04% | 31q | -7.4%-$3.3M |
| CAPITOLIS LIQUID GLOBAL MARKETS LLC | $39.1M | 113,224 | 0.17% | new | NEW |
| GUYASUTA INVESTMENT ADVISORS INC | $37.6M | 108,709 | 1.94% | 8q | -2.3%-$891.9K |
| First Eagle Investment Management, LLC | $36.4M | 105,496 | 0.03% | 21q | +106.2%+$18.8M |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | $35.7M | 103,364 | 0.12% | 31q | HELD |
| California Public Employees Retirement System | $35.2M | 102,019 | 0.02% | 31q | +3.7%+$1.2M |
| Allianz Asset Management GmbH | $34.4M | 99,477 | 0.03% | 40q | +39.9%+$9.8M |
| Retirement Systems of Alabama | $33.8M | 97,839 | 0.10% | 13q | -8.6%-$3.2M |
| Swiss National Bank | $33.7M | 97,655 | 0.02% | 31q | +1.5%+$511.2K |
| CIBC Bancorp USA Inc. | $31.7M | 91,634 | 0.04% | 2q | -5.8%-$1.9M |
| Generali Powszechne Towarzystwo Emerytalne | $28.6M | 82,679 | 4.53% | 11q | HELD |
| SG Americas Securities, LLC | $27.8M | 80,610 | 0.02% | 9q | +471.7%+$23.0M |
| Mizuho Markets Cayman LP | $26.4M | 76,345 | 0.99% | new | NEW |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | $26.2M | 75,790 | 0.23% | 5q | -81.3%-$113.6M |
| Mawer Investment Management Ltd. | $25.8M | 74,616 | 0.18% | new | NEW |
| Legal & General Group Plc | $25.2M | 72,887 | 0.01% | 31q | -0.9%-$217.6K |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $25.0M | 72,329 | 0.07% | 31q | -3.9%-$1.0M |
| Sea Cliff Partners Management, LP | $24.9M | 72,000 | 11.03% | 4q | -16.5%-$4.9M |
| PZENA INVESTMENT MANAGEMENT LLC | $24.7M | 71,494 | 0.07% | 9q | -37.1%-$14.5M |
| River Road Asset Management, LLC | $24.2M | 70,019 | 0.27% | 11q | -12.3%-$3.4M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $24.1M | 69,765 | 0.00% | 31q | +32.9%+$6.0M |
| MACKENZIE FINANCIAL CORP | $24.0M | 69,425 | 0.02% | 14q | HELD |
| Robeco Schweiz AG | $22.6M | 65,400 | 0.36% | 4q | +86.9%+$10.5M |
| FIRST TRUST ADVISORS LP | $22.6M | 65,333 | 0.01% | 31q | +16.2%+$3.1M |
| Leeward Investments, LLC - MA | $22.6M | 65,299 | 1.03% | 13q | -5.4%-$1.3M |
| ALGERT GLOBAL LLC | $22.5M | 65,146 | 0.27% | 11q | +103.3%+$11.4M |
| Rockefeller Capital Management L.P. | $22.4M | 64,825 | 0.03% | 6q | -16.7%-$4.5M |
| AEGON ASSET MANAGEMENT UK Plc | $21.9M | 63,332 | 0.23% | 22q | -40.2%-$14.7M |
| Handelsbanken Fonder AB | $21.8M | 62,977 | 0.06% | 25q | -24.9%-$7.2M |
| Azimuth Capital Investment Management LLC | $20.6M | 59,754 | 0.70% | 3q | -3.3%-$700.9K |
| Jain Global LLC | $19.8M | 57,452 | 0.08% | 2q | -37.2%-$11.8M |
| STATE OF WISCONSIN INVESTMENT BOARD | $19.7M | 56,989 | 0.04% | 24q | -3.3%-$680.5K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-10-27 | 13G/A | BlackRock Portfolio Management LLC | 8.2% |
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-21 | 2026-09-17 | Material agreement entered | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-11 | Porwal Hemant | EVP Supply Chain & Operations | Sold | 4,445 | $1.6M |
| 2026-08-17 | Khurana Akash | EVP, Chief Info & Digital Off. | Sold | 3,400 | $1.2M ×3 |
| 2026-08-04 | Castillo Daniel J | EVP & GM, EES | Bought | 960 | $351.3K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 209 | $537.1M | 1,495,428 | 34 | 71 | 53 | 0.0% |
| Q2 2026 | 712 | $16.4B | 47,041,215 | 118 | 195 | 267 | 0.8% |
| Q1 2026 | 631 | $13.4B | 48,783,528 | 80 | 217 | 204 | 0.7% |
| Q4 2025 | 627 | $12.0B | 48,492,921 | 97 | 186 | 198 | 0.9% |
| Q3 2025 | 569 | $10.4B | 48,935,184 | 90 | 189 | 178 | 0.8% |
| Q2 2025 | 537 | $9.1B | 48,588,347 | 83 | 186 | 179 | 0.7% |
| Q1 2025 | 538 | $7.5B | 47,521,721 | 76 | 223 | 147 | 1.3% |
| Q4 2024 | 533 | $9.0B | 46,545,050 | 71 | 170 | 170 | 6.6% |
| Q3 2024 | 511 | $8.5B | 46,567,156 | 73 | 175 | 167 | 8.2% |
| Q2 2024 | 488 | $8.4B | 48,459,863 | 82 | 154 | 155 | 8.6% |
| Q1 2024 | 466 | $8.9B | 49,665,945 | 79 | 149 | 141 | 4.5% |
| Q4 2023 | 446 | $9.1B | 49,636,249 | 70 | 128 | 144 | 4.8% |
| Q3 2023 | 415 | $7.2B | 48,354,603 | 54 | 129 | 149 | 3.4% |
| Q2 2023 | 451 | $9.5B | 51,310,661 | 99 | 135 | 153 | 3.0% |
| Q1 2023 | 430 | $7.8B | 48,884,263 | 88 | 137 | 135 | 3.7% |
| Q4 2022 | 372 | $6.1B | 47,811,363 | 50 | 114 | 150 | 2.0% |
| Q3 2022 | 355 | $8.8B | 72,777,427 | 58 | 115 | 131 | 1.6% |
| Q2 2022 | 341 | $11.5B | 105,834,498 | 63 | 115 | 116 | 1.2% |
| Q1 2022 | 330 | $14.0B | 107,277,537 | 42 | 104 | 112 | 0.5% |
| Q4 2021 | 344 | $10.1B | 76,390,798 | 63 | 90 | 124 | 0.8% |
| Q3 2021 | 300 | $9.8B | 84,542,907 | 55 | 73 | 114 | 0.6% |
| Q2 2021 | 276 | $7.4B | 71,026,480 | 39 | 57 | 120 | 0.7% |
| Q1 2021 | 277 | $7.4B | 84,757,815 | 53 | 70 | 94 | 0.4% |
| Q4 2020 | 262 | $6.8B | 86,170,279 | 57 | 75 | 84 | 0.3% |
| Q3 2020 | 235 | $2.8B | 63,896,524 | 36 | 59 | 98 | 0.4% |
| Q2 2020 | 249 | $3.6B | 100,392,120 | 66 | 94 | 65 | 1.3% |
| Q1 2020 | 228 | $1.7B | 73,703,127 | 62 | 80 | 57 | 2.0% |
| Q4 2019 | 229 | $2.9B | 47,888,193 | 52 | 64 | 72 | 1.3% |
| Q3 2019 | 187 | $2.1B | 43,712,826 | 22 | 58 | 82 | 0.3% |
| Q2 2019 | 226 | $3.9B | 76,358,128 | 36 | 68 | 81 | 0.6% |
| Q1 2019 | 236 | $4.0B | 74,619,315 | 29 | 95 | 65 | 0.2% |
| Q4 2018 | 236 | $2.2B | 46,098,739 | 5 | 5 | 5 | 0.2% |