X0306 4 2013-02-12 0 0000352825 FOSTER L B CO FSTR 0001541149 Bauer Robert P 415 HOLIDAY DRIVE PITTSBURGH PA 15220 1 1 0 0 President and CEO Common Stock 2013-02-12 4 P 0 1000 43.36 A 1000 I By Nicoletta M. Bauer Revocable Trust Common Stock 2013-02-12 4 P 0 1000 43.19 A 1000 I By Robert P. Bauer Revocable Trust Common Stock 62480 D Common Stock 4428 I 401 (K) Shares The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $43.15 to $43.53. The reporting person undertakes to provide to L. B. Foster Company, any security holder of L. B. Foster Company, or to the SEC, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above. The price reported is a weighted average price. These shares were purchased in multiple transactions. The reporting person undertakes to provide to L. B. Foster Company, any security holder of L. B. Foster Company, or to the SEC, upon request, full information regarding the number of shares purchased at each separate price. /s/ Robert P. Bauer by Deborah J. Foster, attorney-in-fact 2013-02-14