X0306 4 2022-04-05 0 0001005284 UNIVERSAL DISPLAY CORP \PA\ OLED 0001232980 ABRAMSON STEVEN V C/O UNIVERSAL DISPLAY CORPORATION 250 PHILLIPS BLVD. EWING NJ 08618 1 1 0 0 President and CEO Common Stock 2021-09-02 4 G 0 2248 0.00 A 182510 D Common Stock 2022-04-05 4 A 0 2494 0.00 A 185058 D Common Stock 2022-04-05 4 F 0 1057 163.29 D 184001 D Common Stock 2021-09-02 4 G 0 2248 0.00 D 44785 I By Grantor Retained Annuity Trust Reflects transfer of shares from a Grantor Retained Annity Trust back to the reporting person on September 2, 2021. These shares were granted to the reporting person as performance units under the Company's Long Term Incentive Plan as part of 2019 compensation and vested subject to the satisfaction of certain performance conditions, which our Human Capital Committee certified on April 5, 2022 as having occurred. Includes 54 shares acquired under the Universal Display Corporation Employee Stock Purchase Plan on March 31, 2022. These shares were withheld to satisfy a tax liability in connection with the vesting on April 5, 2022 of 2,494 shares of restricted stock previously granted to the reporting person. /s/ Steven V. Abramson (by Mauro Premutico as power of attorney) 2022-04-07