X0303 4 2010-01-06 0001005284 UNIVERSAL DISPLAY CORP \PA\ PANL 0001232980 ABRAMSON STEVEN V 375 PHILLIPS BLVD. EWING NJ 08618 1 1 0 0 President and CEO Common Stock 2009-10-26 5 G 0 2600 0 D 192926 D Common Stock 2010-01-06 4 A 0 22230 0 A 215870 D Common Stock 2010-01-06 4 F 0 9175 14.17 D 206695 D Common Stock 2010-01-06 4 A 0 21171 0 A 227866 D Common Stock 2010-01-06 4 F 0 2850 14.17 D 225016 D Includes 683 shares acquired under the Universal Display Corporation Employee Stock Purchase Plan on September 30, 2009. Includes 714 shares acquired under the Universal Display Corporation Employee Stock Purchase Plan on December 31, 2009. These shares were withheld to satisfy a tax liability. These shares are subject to a vesting restriction, with one-third of the total share amount vesting on each of January 6, 2011, 2012 and 2013. These shares were withheld to satisfy a tax liability in connection with the vesting, on January 6, 2010, of 7,213 shares of restricted stock previously granted to Mr. Abramson. /s/ Steven V. Abramson 2010-01-08