X0303 4 2009-08-14 0001005284 UNIVERSAL DISPLAY CORP \PA\ PANL 0001101463 LACERTE LAWRENCE 375 PHILLIPS BLVD. EWING NJ 08618 1 0 0 0 Common Stock 2009-08-14 4 P 0 317 10.24 A 874418 D Common Stock 2009-08-14 4 P 0 72 10.22 A 874490 D Common Stock 2009-08-14 4 P 0 200 10.27 A 874690 D Common Stock 2009-08-14 4 P 0 400 10.23 A 875090 D Common Stock 2009-08-14 4 P 0 728 10.21 A 875818 D Common Stock 2009-08-14 4 P 0 100 10.18 A 875918 D Common Stock 2009-08-14 4 P 0 1600 10.17 A 877518 D Common Stock 2009-08-14 4 P 0 1400 10.19 A 878918 D Common Stock 2009-08-14 4 P 0 493 10.11 A 879411 D Common Stock 2009-08-14 4 P 0 1830 10.10 A 881241 D Common Stock 2009-08-14 4 P 0 1811 10.12 A 883052 D Common Stock 2009-08-14 4 P 0 3600 10.13 A 886652 D Common Stock 2009-08-14 4 P 0 1059 10.14 A 887711 D Common Stock 2009-08-14 4 P 0 3307 10.15 A 891018 D Common Stock 2009-08-14 4 P 0 400 10.16 A 891418 D Common Stock 2009-08-14 4 P 0 1800 10.20 A 893218 D Common Stock 2009-08-17 4 P 0 100 9.985 A 893318 D Common Stock 2009-08-17 4 P 0 100 9.94 A 893418 D Common Stock 2009-08-17 4 P 0 411 9.96 A 893829 D Common Stock 2009-08-17 4 P 0 1289 9.97 A 895118 D Common Stock 2009-08-17 4 P 0 500 9.975 A 895618 D Common Stock 2009-08-17 4 P 0 1850 9.98 A 897468 D Common Stock 2009-08-17 4 P 0 1900 10.00 A 899368 D Common Stock 2009-08-17 4 P 0 1950 9.99 A 901318 D Common Stock 2009-08-18 4 P 0 100 9.94 A 901418 D Common Stock 2009-08-18 4 P 0 200 9.93 A 901618 D Common Stock 2009-08-18 4 P 0 300 9.97 A 901918 D Common Stock 2009-08-18 4 P 0 1300 9.99 A 903218 D Common Stock 2009-08-18 4 P 0 2100 10.00 A 905318 D Common Stock 2009-08-18 4 P 0 1000 9.98 A 906318 D /s/ Steven V. Abramson (by power of attorney) 2009-08-18