| SC 13G | 2009-02-13 | MAZAMA CAPITAL MANAGEMENT INC | UNIVERSAL DISPLAY CORP \PA\ | 2,781,872 | 7.8% | EDGAR |
| SC 13G/A | 2009-02-12 | Invesco Ltd. | UNIVERSAL DISPLAY CORP \PA\ | 1,419,520 | 3.9% | EDGAR |
| SC 13G/A | 2008-02-14 | FMR LLC | UNIVERSAL DISPLAY CORP \PA\ | 3,611,220 | 10.2% | EDGAR |
| SC 13G | 2008-02-14 | Invesco Ltd. | UNIVERSAL DISPLAY CORP \PA\ | 2,647,539 | 7.5% | EDGAR |
| SC 13G | 2008-02-08 | MAZAMA CAPITAL MANAGEMENT INC | UNIVERSAL DISPLAY CORP \PA\ | 3,005,814 | 8.6% | EDGAR |
| SC 13G/A | 2007-03-27 | Winters Steven G | UNIVERSAL DISPLAY CORP \PA\ | 1,676,000 | 5.6% | EDGAR |
| SC 13G/A | 2007-02-14 | FMR CORP | UNIVERSAL DISPLAY CORP \PA\ | 3,125,430 | 10.0% | EDGAR |
| SC 13G/A | 2006-05-10 | FMR CORP | UNIVERSAL DISPLAY CORP \PA\ | 3,479,108 | 11.6% | EDGAR |
| SC 13G/A | 2006-04-28 | Averill Joshua | UNIVERSAL DISPLAY CORP \PA\ | 1,676,000 | 5.6% | EDGAR |
| SC 13G/A | 2006-02-14 | FMR CORP | UNIVERSAL DISPLAY CORP \PA\ | 1,650,100 | 5.7% | EDGAR |
| SC 13G/A | 2005-10-11 | PPG INDUSTRIES INC | UNIVERSAL DISPLAY CORP \PA\ | 1,314,993 | 4.4% | EDGAR |
| SC 13G | 2005-04-27 | PPG INDUSTRIES INC | UNIVERSAL DISPLAY CORP \PA\ | 1,625,993 | 5.5% | EDGAR |
| SC 13G/A | 2005-02-14 | PPG INDUSTRIES INC | UNIVERSAL DISPLAY CORP \PA\ | 1,161,054 | 4.2% | EDGAR |
| SC 13G | 2005-02-14 | FMR CORP | UNIVERSAL DISPLAY CORP \PA\ | 1,555,100 | 5.6% | EDGAR |
| SC 13G/A | 2004-02-18 | PPG INDUSTRIES INC | UNIVERSAL DISPLAY CORP \PA\ | 1,321,054 | 5.3% | EDGAR |
| SC 13G | 2004-02-10 | SCHLESINGER CLIFFORD D | UNIVERSAL DISPLAY CORP \PA\ | 1,676,000 | 7.0% | EDGAR |
| SC 13G | 2003-03-10 | PPG INDUSTRIES INC | UNIVERSAL DISPLAY CORP \PA\ | 1,131,088 | 5.1% | EDGAR |
| SC 13G/A | 2003-02-12 | CAVALLO CAPITAL CORP | UNIVERSAL DISPLAY CORP \PA\ | 975,747 | 4.5% | EDGAR |
| SC 13G/A | 2002-02-26 | CAVALLO CAPITAL CORP | UNIVERSAL DISPLAY CORP \PA\ | 1,992,807 | 10.0% | EDGAR |
| SC 13G | 2001-09-04 | CAVALLO CAPITAL CORP | UNIVERSAL DISPLAY CORP \PA\ | 1,893,930 | 10.0% | EDGAR |