X0203 3 2010-01-01 0 0001005284 UNIVERSAL DISPLAY CORP \PA\ PANL 0001479956 Hack Michael G 375 PHILLIPS BLVD. EWING NJ 08618 0 1 0 0 VP Strategic Product Develop Common Stock 10445 D Employee Stock Option (right to buy) 10.38 2001-02-05 2011-02-05 Common Stock 1000 D Employee Stock Option (right to buy) 10.3125 2001-03-30 2011-03-30 Common Stock 12500 D Employee Stock Option (right to buy) 9.94 2002-11-18 2012-11-18 Common Stock 500 D Employee Stock Option (right to buy) 9.60 2003-06-16 2013-06-16 Common Stock 250 D Employee Stock Option (right to buy) 9.21 2003-09-15 2013-09-15 Common Stock 500 D Employee Stock Option (right to buy) 13.92 2003-12-23 2013-12-23 Common Stock 15000 D Employee Stock Option (right to buy) 13.28 2004-04-20 2014-04-20 Common Stock 250 D Employee Stock Option (right to buy) 10.62 2004-06-15 2014-06-15 Common Stock 250 D Employee Stock Option (right to buy) 10.07 2004-11-23 2014-11-23 Common Stock 250 D Employee Stock Option (right to buy) 8.14 2005-01-18 2015-01-18 Common Stock 7000 D Employee Stock Option (right to buy) 10.51 2005-12-30 2015-12-30 Common Stock 20000 D Employee Stock Option (right to buy) 12.40 2006-06-20 2016-06-20 Common Stock 750 D Of these, 9,773 shares are subject to vesting restrictions, with 2,075 shares vesting on January 6, 2010, 2,458 shares vesting on January 9, 2010, 2,075 shares vesting on January 6, 2011, 1,090 shares vesting on January 9, 2011, and 2,075 shares vesting on January 6, 2012. /s/ Michael G. Hack 2010-01-05