UNIVERSAL DISPLAY CORP \PA\ — Director's Dealing 2010

Jun 8, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: UNIVERSAL DISPLAY CORP \PA\ (PANL)
CIK: 0001005284
Period of Report: 2010-06-04

Reporting Person: LACERTE LAWRENCE (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-06-04	Common Stock	P	100	$18.04	Acquired	959291	Direct
2010-06-04	Common Stock	P	100	$17.89	Acquired	959391	Direct
2010-06-04	Common Stock	P	300	$17.88	Acquired	959691	Direct
2010-06-04	Common Stock	P	200	$17.87	Acquired	959891	Direct
2010-06-04	Common Stock	P	1400	$17.86	Acquired	961291	Direct
2010-06-04	Common Stock	P	600	$17.81	Acquired	961891	Direct
2010-06-04	Common Stock	P	1900	$17.79	Acquired	963791	Direct
2010-06-04	Common Stock	P	200	$17.71	Acquired	963991	Direct
2010-06-04	Common Stock	P	900	$17.65	Acquired	964891	Direct
2010-06-04	Common Stock	P	800	$17.60	Acquired	965691	Direct
2010-06-04	Common Stock	P	2100	$17.51	Acquired	967791	Direct
2010-06-04	Common Stock	P	200	$17.41	Acquired	967991	Direct
2010-06-04	Common Stock	P	1000	$17.35	Acquired	968991	Direct
2010-06-04	Common Stock	P	100	$17.34	Acquired	969091	Direct
2010-06-04	Common Stock	P	1900	$17.30	Acquired	970991	Direct
2010-06-04	Common Stock	P	2000	$17.21	Acquired	972991	Direct
2010-06-04	Common Stock	P	1200	$16.91	Acquired	974191	Direct
2010-06-07	Common Stock	P	300	$17.21	Acquired	974491	Direct
2010-06-07	Common Stock	P	200	$17.16	Acquired	974691	Direct
2010-06-07	Common Stock	P	100	$17.12	Acquired	974791	Direct
2010-06-07	Common Stock	P	100	$17.11	Acquired	974891	Direct
2010-06-07	Common Stock	P	100	$17.10	Acquired	974991	Direct
2010-06-07	Common Stock	P	200	$17.06	Acquired	975191	Direct
2010-06-07	Common Stock	P	100	$17.05	Acquired	975291	Direct
2010-06-07	Common Stock	P	300	$17.04	Acquired	975591	Direct
2010-06-07	Common Stock	P	100	$17.03	Acquired	975691	Direct
2010-06-07	Common Stock	P	200	$17.02	Acquired	975891	Direct
2010-06-07	Common Stock	P	100	$17.01	Acquired	975991	Direct
2010-06-07	Common Stock	P	100	$17.00	Acquired	976091	Direct
2010-06-07	Common Stock	P	300	$16.98	Acquired	976391	Direct