UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 WESBANCO, INC. (Exact name of Registrant as specified in its charter) 1 Bank Plaza, Wheeling, WV 26003 (Address of principal executive offices) (Zip Code) WEST VIRGINIA 55-0571723 (State of incorporation) (IRS Employer Identification No.) ☐ TRANSITION REPORT PURSUANT TO SECTION 13 ...