X0306 4 2012-12-31 0 0000018172 CASTLE A M & CO CAS 0001413322 Anderson Patrick R. 1420 KENSINGTON ROAD SUITE 220 OAK BROOK IL 60523 0 1 0 0 CAO/Controller Common Stock 2012-12-31 4 M 0 2500 14.77 A 4226.8 D Common Stock 2012-12-31 4 F 0 786 14.77 D 3440.8 D Restricted Stock Units 2012-12-31 4 M 0 2500 0 D 2012-12-31 2012-12-31 Common Stock 2500 0 D Amount of securities beneficially owned includes a total of 32.75 shares acquired from September 24, 2012 through October 5, 2012, via Registrant's Employee Stock Purchase Plan. Each unit converted into a share of A.M. Castle & Co. common stock on a one-for-one basis. Robert J. Perna, Attorney-in-Fact 2013-01-02