Company: WCC
Filing Date: 2025-03-27
Form Type: PRE 14A
Source: 0001193125-25-065641
Chunk: 6

Company: WESCO INTERNATIONAL INC
Filing Date: 2025-03-27
Form: PRE 14A
Chunk 6
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 present for purposes of determining a quorum. How will Wesco solicit votes and who pays for the proxy solicitation? Wesco pays the cost of preparing our proxy materials and soliciting your vote. We have engaged Innisfree to assist with the solicitation of proxies for an estimated fee of $20,000 plus expenses. Wesco will reimburse brokerage firms and other persons representing beneficial owners of shares for reasonable expenses incurred by them in forwarding proxy-soliciting materials to such beneficial owners. Proxies may be solicited on our behalf by our Directors, officers, employees and agents, without additional remuneration, by telephone, electronic or facsimile transmission or in person.

| Wesco 2025 Proxy Statement |     | Questions and Answers |     | 4 |

May I elect to receive a paper copy of proxy materials in the future? Stockholders can elect to receive future Wesco Proxy Statements and Annual Reports via paper copies in the mail. If you are a registered stockholder, you can choose to receive future Annual Reports and Proxy Statements via paper copy at no charge by writing to WESCO International, Inc., 225 West Station Square Drive, Suite 700, Pittsburgh, Pennsylvania, 15219-1122,Attention: Corporate Secretary. If you are a beneficial holder, follow the information provided by your nominee for instructions on how to elect to receive paper copies of future Annual Reports and Proxy Statements. If you enroll to receive paper copies of Wesco’s future Annual Reports and Proxy Statements, your enrollment will remain in effect for all future stockholders’ meetings unless you cancel the enrollment. What is householding? Stockholders who share the same last name and address will receive one package containing a separate Notice for each individual stockholder at that address. Stockholders who have elected to receive paper copies and who share the same last name and address will receive only one set of our Annual Report on Form 10-Kand Proxy Statement, unless such stockholders have notified us that they wish to continue receiving multiple copies. This method of delivery, known as “householding,” will help ensure that stockholder households do not receive multiple copies of the same document and lowers the costs and the environmental impact of our Annual Meeting. If you are a registered stockholder, you can opt out of the householding practice and receive prompt delivery of a separate copy of the materials by calling Broadridge at 1-866-540-7095.If you would like to opt out of this practice and you are a beneficial holder, please contact your bank or broker.