X0306 4 2022-11-14 0 0001005284 UNIVERSAL DISPLAY CORP \PA\ OLED 0001688444 Comparin Cynthia Jane C/O UNIVERSAL DISPLAY CORPORATION 250 PHILLIPS BLVD. EWING NJ 08618 1 0 0 0 Common Stock 3076 D Common Stock 2022-11-14 4 S 0 3628 109.88 D 0 I By Spouse These shares were held by the reporting person's spouse and reported as being beneficially owned by her. Represents the weighted average of a range of sale prices from $109.56 to $110.18. The reporting person undertakes to provide to the Staff of 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/ Cynthia J. Comparin (by Mauro Premutico as power of attorney) 2022-11-16