SEC Form 4 · Updated Daily
WCC
— WESCO INTERNATIONAL, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Leonard Green & Partners, L.P. | 10%+ Owner | 2,522,415 | 2024-05-07 | S |
| GEI Capital VII, LLC | 10%+ Owner | 2,522,415 | 2024-05-07 | S |
| LGP MANAGEMENT INC | 10%+ Owner | 2,522,415 | 2024-05-07 | S |
| Green Equity Investors Side VII, L.P. | 10%+ Owner | 2,522,415 | 2024-05-07 | S |
| Green Equity Investors VII, L.P. | 10%+ Owner | 2,522,415 | 2024-05-07 | S |
| HALEY ROY W | Director | 1,082,482 | 2011-05-25 | M |
| ENGEL JOHN | Officer | 479,007.279 | 2026-09-30 | A |
| VAN OSS STEPHEN A | Director · Officer | 176,445 | 2015-04-28 | M |
| Schulz David S. | Director | 107,139.381 | 2026-05-06 | S |
| Cenk William E Jr | Officer | 60,531 | 2008-03-24 | M |
| Geary William Clayton | Officer | 55,904.01 | 2025-06-30 | A |
| THIMJON DONALD H | Officer | 55,185 | 2008-05-12 | M |
| Rosenbaum Robert B | Officer | 50,000 | 2007-12-27 | P |
| Squires Nelson John III | Officer | 48,634.4 | 2025-09-30 | A |
| TARR ROBERT J JR | Director | 48,364 | 2016-02-21 | M |
| Cameron James | Officer | 46,498.519 | 2026-09-30 | A |
| Singleton James Louis | Director | 37,699.66 | 2026-09-30 | A |
| GRIFFIN BOBBY J | Director | 32,254.485 | 2026-03-31 | A |
| Heyse Richard | Officer | 32,000 | 2010-05-11 | P |
| Dosch Ted A | Director | 31,656 | 2022-07-01 | M |
| GOODWIN WILLIAM M | Officer | 30,000 | 2008-03-28 | M |
| Wolf Christine Ann | Officer | 29,573.868 | 2026-06-30 | A |
| Khurana Akash | Officer | 27,431.09 | 2026-09-30 | A |
| MORGAN JOHN K | Director | 26,204 | 2020-06-08 | M |
| RAYMUND STEVEN A | Director | 25,628.32 | 2026-03-31 | A |
| ESPE MATTHEW J | Director | 21,431.861 | 2026-09-30 | A |
| Lazzaris Diane | Officer | 19,619.526 | 2026-09-30 | A |
| Dev Indraneel | Officer | 16,895.578 | 2026-09-30 | A |
| Porwal Hemant | Officer | 16,623.74 | 2026-09-30 | A |
| LIN SANDRA BEACH | Director | 15,329 | 2019-02-16 | M |
| VAN JE RONALD P | Officer | 15,294 | 2008-05-02 | M |
| Sundaram Easwaran | Director | 14,767.464 | 2026-09-30 | A |
| Bemoras David Scott | Officer | 14,750 | 2008-11-13 | P |
| Castillo Daniel J | Officer | 14,700.981 | 2026-09-30 | A |
| Bergdoll Andrew J. | Officer | 14,300 | 2007-12-26 | P |
| Griffin James R. | Officer | 13,175 | 2008-04-29 | P |
| Minicozzi Robert | Officer | 13,141 | 2020-02-16 | M |
| WINDROW KIMBERLY G | Officer | 12,121 | 2018-02-17 | M |
| BRAILER DANIEL A | Officer | 10,753 | 2015-02-17 | A |
| Thompson Laura K | Director | 10,722.268 | 2026-09-30 | A |
| UTTER LYNN M | Director | 8,763 | 2021-03-05 | S |
| Naylor Dirk Waugh | Officer | 8,693.074 | 2026-09-30 | A |
| VARESCHI WILLIAM J JR | Director | 8,474 | 2015-02-16 | M |
| NAGARAJAN SUNDARAM | Director | 7,298.88 | 2026-09-30 | A |
| WAY KENNETH L | Director | 6,453 | 2009-03-12 | P |
| Cooney Anne M | Director | 6,354.962 | 2026-09-30 | A |
| Parks Kenneth Scott | Officer | 4,918 | 2016-02-21 | M |
| BRYAN GLYNIS | Director | 4,131.109 | 2026-09-30 | A |
| HIBBARD TIMOTHY A | Officer | 3,347 | 2016-02-21 | M |
| Kulasa Matthew S | Officer | 3,148.446 | 2026-09-30 | A |
| Hansen Carl E | Officer | 2,667 | 2006-12-12 | M |
| MILES GEORGE L JR | Director | 2,604 | 2014-02-16 | M |
| DUGANIER ALLAN A | Officer | 1,855 | 2015-02-16 | M |
| OBRIEN JAMES J /KY | Director | 1,550 | 2016-02-02 | P |
| Marino Anthony S | Officer | 1,022.42 | 2026-09-30 | A |
| WAJSGRAS DAVID C | Director | 954.114 | 2026-09-30 | A |
| SMOREY-GIGER MARCY | Officer | 667 | 2006-05-10 | M |
| Carter Michael Lonon | Director | 662.079 | 2026-09-30 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2028-03-01 | Schulz David S. | Open-market sale | 1,867 | $167.07 | 100,703.36 |
| 2026-09-30 | Dev Indraneel | Grant / award | 23.46 | $0.00 | 16,895.578 |
| 2026-09-30 | ENGEL JOHN | Grant / award | 30.173 | $0.00 | 479,007.279 |
| 2026-09-30 | Marino Anthony S | Grant / award | 1.42 | $0.00 | 1,022.42 |
| 2026-09-30 | Lazzaris Diane | Grant / award | 4.182 | $0.00 | 19,619.526 |
| 2026-09-30 | Thompson Laura K | Grant / award | 2.38 | $0.00 | 10,722.268 |
| 2026-09-30 | BRYAN GLYNIS | Grant / award | 5.736 | $0.00 | 4,131.109 |
| 2026-09-30 | Cameron James | Grant / award | 29.042 | $0.00 | 46,498.519 |
| 2026-09-30 | Singleton James Louis | Grant / award | 26.889 | $0.00 | 37,699.66 |
| 2026-09-30 | NAGARAJAN SUNDARAM | Grant / award | 21.727 | $359.57 | 7,298.88 |
| 2026-09-30 | NAGARAJAN SUNDARAM | Grant / award | 10.105 | $0.00 | 7,277.153 |
| 2026-09-30 | Castillo Daniel J | Grant / award | 13.676 | $0.00 | 14,700.981 |
| 2026-09-30 | ESPE MATTHEW J | Grant / award | 16.933 | $0.00 | 21,431.861 |
| 2026-09-30 | Naylor Dirk Waugh | Grant / award | 10.248 | $0.00 | 8,693.074 |
| 2026-09-30 | Cooney Anne M | Grant / award | 26.942 | $359.57 | 6,354.962 |
| 2026-09-30 | Cooney Anne M | Grant / award | 5.296 | $0.00 | 6,328.02 |
| 2026-09-30 | Khurana Akash | Grant / award | 27.453 | $0.00 | 27,431.09 |
| 2026-09-30 | Carter Michael Lonon | Grant / award | 0.919 | $0.00 | 662.079 |
| 2026-09-30 | Kulasa Matthew S | Grant / award | 1.16 | $0.00 | 3,148.446 |
| 2026-09-30 | Porwal Hemant | Grant / award | 2.766 | $0.00 | 16,623.74 |
| 2026-09-30 | WAJSGRAS DAVID C | Grant / award | 86.909 | $359.57 | 954.114 |
| 2026-09-30 | WAJSGRAS DAVID C | Grant / award | 1.204 | $0.00 | 867.205 |
| 2026-09-30 | Sundaram Easwaran | Grant / award | 86.909 | $359.57 | 14,767.464 |
| 2026-09-30 | Sundaram Easwaran | Grant / award | 20.384 | $0.00 | 14,680.555 |
| 2026-09-11 | Castillo Daniel J | Tax withholding | 1,618.011 | $356.32 | 14,687.305 |
| 2026-08-17 | Khurana Akash | Open-market sale | 360 | $368.27 | 27,403.637 |
| 2026-08-17 | Khurana Akash | Open-market sale | 1,480 | $367.13 | 27,763.637 |
| 2026-08-17 | Khurana Akash | Open-market sale | 1,560 | $366.10 | 29,243.637 |
| 2026-08-12 | Thompson Laura K | Open-market sale | 270 | $368.45 | 10,719.888 |
| 2026-08-04 | Castillo Daniel J | Grant / award (derivative) | 914 | $0.00 | 914 |
| 2026-08-04 | Castillo Daniel J | Open-market buy | 960 | $365.89 | 16,305.316 |
| 2026-07-23 | Marino Anthony S | Grant / award (derivative) | 2,335 | $0.00 | 2,335 |
| 2026-07-23 | Marino Anthony S | Grant / award | 1,021 | $0.00 | 1,021 |
| 2026-06-30 | Lazzaris Diane | Grant / award | 4.347 | $0.00 | 19,615.345 |
| 2026-06-30 | ENGEL JOHN | Grant / award | 31.365 | $0.00 | 478,977.105 |
| 2026-06-30 | Singleton James Louis | Grant / award | 27.951 | $0.00 | 37,672.771 |
| 2026-06-30 | Naylor Dirk Waugh | Tax withholding | 284.407 | $345.43 | 8,682.827 |
| 2026-06-30 | Naylor Dirk Waugh | Grant / award | 11.615 | $0.00 | 8,967.233 |
| 2026-06-30 | WAJSGRAS DAVID C | Grant / award | 90.467 | $345.43 | 866.001 |
| 2026-06-30 | WAJSGRAS DAVID C | Grant / award | 1.121 | $0.00 | 775.534 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.