X0303 4 2011-04-28 1 0000018172 CASTLE A M & CO CAS 0001179608 HAMADA ROBERT S 3400 NORTH WOLF ROAD FRANKLIN PARK IL 60131 1 0 0 0 Common Stock 2011-04-28 4 M 0 5108.851 A 26063.851 D Common Stock 2011-04-28 4 D 0 .851 18.95 D 26063 D Phantom Stock Units 2011-04-28 4 M 0 5108.851 D 2011-04-28 2011-04-28 Common Stock 5108.851 0 D Each phantom stock unit was the economic equivalent of one share of A. M. Catle & Co. common stock. On April 28, 2011, 5,108 of the reporting person's phantom stock units were settled for an equal number of A. M. Castle & Co. common stock, and the remaining 0.851 fractional phantom stock unit was settled for cash. Robert J. Perna, Attorney-In-Fact 2011-04-29