X0303 4 2011-06-01 0000775368 ALLEGHANY CORP /DE Y 0001186549 HICKS WESTON M ALLEGHANY CORPORATION 7 TIMES SQUARE TOWER, 17TH FLOOR NEW YORK NY 10036 1 1 0 0 President and CEO Common Stock 2011-06-01 4 S 0 70 334.08 D 77043 D Common Stock 2011-06-01 4 S 0 100 333.51 D 76943 D Common Stock 2011-06-01 4 S 0 9 332.11 D 76934 D Common Stock 2011-06-01 4 S 0 100 331.76 D 76834 D Common Stock 2011-06-01 4 S 0 100 331.37 D 76734 D Common Stock 2011-06-01 4 S 0 100 330.59 D 76634 D Common Stock 2011-06-01 4 S 0 196 329.23 D 76438 D Common Stock 2011-06-01 4 S 0 100 328.76 D 76338 D Common Stock 2011-06-02 4 S 0 100 329.28 D 76238 D Common Stock 2011-06-02 4 S 0 100 328.86 D 76138 D Common Stock 2011-06-02 4 S 0 200 327.65 D 75938 D Common Stock 2011-06-02 4 S 0 100 327.215 D 75838 D Each of the sales reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2010. Christopher K. Dalrymple, Attorney-in-Fact 2011-06-03