X0303 4 2011-05-09 0 0000879993 DUSA PHARMACEUTICALS INC DUSA 0001313163 Doman Robert F DUSA PHARMACEUTICALS, INC. 25 UPTON DRIVE WILMINGTON MA 01887 1 1 0 0 President and CEO Common Stock 2008-06-09 4 G 0 10000 0.00 D 385101 D Common Stock 2008-08-22 4 G 0 5000 0.00 D 380101 D Common Stock 2008-06-09 4 G 0 10000 0.00 A 14750 I by wife Common Stock 2008-08-22 4 G 0 5000 0.00 A 19750 I by wife Common Stock 2011-05-09 4 F 0 1508 5.80 D 378593 D This transfer is pursuant to a gift for no consideration. These shares represent payment of withholding tax liability incident to the vesting of restricted stock granted May 9, 2008. Includes Stock Awards which vest at the rate of one-quarter of the total grant on each of the first, second, third and fourth anniversaries of the date of the grant. /s/ Robert F. Doman 2011-05-10