Company: WSBC
Filing Date: 2025-09-11
Form Type: 424B5
Source: 0001193125-25-201360
Chunk: 0

Company: WESBANCO INC
Filing Date: 2025-09-11
Form: 424B5
Chunk 0
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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-270051

PROSPECTUS SUPPLEMENT

(TO PROSPECTUS DATED FEBRUARY 27, 2023)

Wesbanco, Inc.

9,200,000 Depositary Shares

Each Representing 1/40th Interest in a Share of

7.375% Fixed-Rate Reset Non-CumulativePerpetual Preferred Stock, Series B

Each of the 9,200,000 depositary shares offered hereby (the “depositary shares”) represents a 1/40th ownership interest in a share
of 7.375% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series B (the “Series B Preferred Stock”), $1,000 liquidation preference per share (equivalent to $25 per depositary share), of
Wesbanco, Inc., deposited with Computershare Inc. and Computershare Trust Company, N.A., acting jointly as depositary. The depositary shares are evidenced by depositary receipts. As a holder of depositary shares, you are entitled to all proportional
rights and preferences of the Series B Preferred Stock (including dividend, voting, redemption and liquidation rights). You must exercise such rights through the depositary.

Holders of Series B Preferred Stock will be entitled to receive dividend payments only when, as and if declared by our board of directors and
to the extent that we have legally available funds to pay dividends. Any such dividends will be payable (i) from the date of original issue to, but excluding, October 1, 2030, at a rate equal to 7.375% per annum, in arrears on each of
January 1, April 1, July 1 and October 1, commencing January 1, 2026, and (ii) from and including, October 1, 2030, during each reset period, at a rate per annum equal to the five-year treasury rate as of the most
recent reset dividend determination date (as described elsewhere in this prospectus supplement) plus 3.795% in arrears on each of January 1, April 1, July 1 and October 1 of each year, beginning on October 1, 2030, except in
each case where such day is not a business day. Payment of dividends on the Series B Preferred Stock is subject to certain legal, regulatory and