Company: WSBC
Filing Date: 2025-09-11
Form Type: 424B5
Source: 0001193125-25-201360
Chunk: 28

Company: WESBANCO INC
Filing Date: 2025-09-11
Form: 424B5
Chunk 28
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 aggregate principal amount of 2030 Notes were outstanding. We
may, at our option, redeem, in whole or in part, the 2030 Notes on any interest payment date for the 2030 Notes beginning on September 30, 2025, at a redemption price equal to 100% of the principal amount of the 2030 Notes to be redeemed, plus
accrued and unpaid interest to, but excluding, the redemption date. The 2030 Notes mature on September 30, 2030. To but excluding September 30, 2025, the 2030 Notes bear interest at a fixed rate of 4.00% per annum. Beginning on
September 30, 2025, the 2030 Notes bear interest at a floating rate per annum equal to a floating rate based on the secured overnight financing rate, plus a spread of 388.5 basis points. We intend to redeem all of our outstanding 2030 Notes on
December 30, 2025.

This prospectus supplement does not constitute a notice of redemption with respect to our Series A Preferred
Stock or the related depositary shares, or the 2030 Notes.

One or more of the underwriters or their affiliates may be holders of our
depositary shares representing an interest in our Series A Preferred Stock or 2030 Notes and, in such case, would receive a portion of the net proceeds from this offering.

S-20

CAPITALIZATION The following table sets forth:

You should read this table in conjunction with our consolidated financial statements, the related notes and other financial information contained in our Annual Report on Form 10-Kfor our fiscal year ended December 31, 2024 and our Quarterly Report on Form 10-Qfor our fiscal quarter ended June 30, 2025, which are incorporated by reference in this prospectus supplement and the accompanying prospectus.

|                                                                                                                                                                                              |     | As of June 30, 2025         |            |   |     |             |            |   |
|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:----|:----------------------------|-----------:|:--|:----|:------------|-----------:|:--|
|                                                                                                                                                                                              |     | Actual                      |            |   |     | As Adjusted |            |   |
|                                                                                                                                                                                              |     | -In thousands, except share 
 amounts                     |            |   |     |             |            |   |
| Cash and cash equivalents                                                                                                                                                                    |     | $                           |