X0306 4/A 2017-12-21 2017-12-21 0000203596 WESBANCO INC WSBC 0001393088 NELSON F ERIC JR C/O WESBANCO INC ONE BANK PLAZA WHEELING WV 26003 1 Common Stock 2017-12-21 4 S 0 12000 42.073 D 26733 I By Frederik Eric Nelson Trusts Common Stock 29717 D Common Stock 335 I By Children Common Stock 0 I By O & G, Inc. The total number of shares sold was reported incorrectly on reporting person's original Form 4. The price reported in Column 4 is a weighted average price and has been amended from the original Form 4 previously filed. These shares were sold in multiple transactions at prices ranging from $41.929 to $42.154 inclusive. The reporting person undertakes to provide to WesBanco, Inc., any security holder of WesBanco, Inc. or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. /s/ Robert H. Young, Attorney-in-Fact 2017-12-29