X0305 4 2012-03-26 0000203596 WESBANCO INC WSBC 0001055721 KNOX D BRUCE C/O WESBANCO, INC. ONE BANK PLAZA WHEELING WV 26003 1 Common Stock 2012-03-26 4 S 0 3225 20.80 D 53555 D Common Stock 2012-03-26 4 S 0 100 20.81 D 53455 D Common Stock 2012-03-26 4 S 0 958 20.82 D 52497 D Common Stock 2012-03-26 4 S 0 99 20.83 D 52398 D Common Stock 2012-03-26 4 S 0 10182 20.85 D 42216 D Common Stock 2012-03-26 4 S 0 100 20.88 D 42116 D Common Stock 2012-03-26 4 S 0 328 20.89 D 41788 D Common Stock 2012-03-26 4 S 0 8 20.90 D 41780 D Common Stock 1982 I By IRA The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 5, 2011. /s/ Robert H. Young, Attorney-in-Fact 2012-03-27