X0306 4 2019-08-06 0001005284 UNIVERSAL DISPLAY CORP \PA\ OLED 0001232978 ROSENBLATT SIDNEY D C/O UNIVERSAL DISPLAY CORPORATION 375 PHILLIPS BLVD. EWING NJ 08618 1 1 0 0 EVP and CFO Common Stock 2019-08-06 5 G 0 12579 0 D 193556 D Common Stock 2020-08-31 5 G 0 42839 0.0 D 150717 D Common Stock 2019-08-06 5 G 0 12579 0.0 A 66419 I By Grantor Retained Annuity Trust Common Stock 2020-08-31 5 G 0 11842 0 D 54577 I By Grantor Retained Annuity Trust Common Stock 2020-08-31 5 G 0 42839 0.0 A 97416 I By Grantor Retained Annuity Trust Common Stock 13000 I By Spouse Common Stock 50356 I By Family Limited Partnership Reflects transfer to a grantor retained annuity trust on August 6, 2019. Includes 20 shares acquired under the Universal Display Corporation Employee Stock Purchase Plan on June 30, 2020. Reflects transfer to a grantor retained annuity trust on August 31, 2020. These shares were distributed from a grantor retained annuity trust to family trusts in which Mr. Rosenblatt is neither trustee nor beneficiary. These shares are held by Mr. Rosenblatt's spouse and are being reported as beneficially owned by him. These shares are held by the Rosenblatt Family Limited Partnership, a limited partnership of which Mr. Rosenblatt is the sole general partner and he and his children are the sole limited partners. /s/ Sidney. D. Rosenblatt (by Mauro Premutico as power of attorney) 2020-10-01