X0306 4 2017-05-08 0001005284 UNIVERSAL DISPLAY CORP \PA\ OLED 0001232980 ABRAMSON STEVEN V C/O UNIVERSAL DISPLAY CORPORATION 375 PHILLIPS BLVD. EWING NJ 08618 1 1 0 0 President and CEO Common Stock 2017-05-08 4 S 0 11000 112.7161 D 278480 D Common Stock 2017-05-08 4 S 0 6516 114.1817 D 271964 D Common Stock 2017-05-08 4 S 0 484 114.5165 D 271480 D Common Stock 230260 I By Grantor Retained Annuity Trust These shares were sold pursuant to a Rule 10b5-1 Non-Discretionary Trading Plan previously entered into by Mr. Abramson. Represents the weighted average of a range of sale prices from $112.35 to $113.35. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company or any shareholder of the Company, upon request, full information regarding the number of shares sold at each separate price. Represents the weighted average of a range of sale prices from $113.40 to $114.40. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company or any shareholder of the Company, upon request, full information regarding the number of shares sold at each separate price. Represents the weighted average of a range of sale prices from $114.425 to $114.55. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company or any shareholder of the Company, upon request, full information regarding the number of shares sold at each separate price. /s/ Steven V. Abramson 2017-05-09