UNIVERSAL DISPLAY CORP \PA\ — Director's Dealing 2021

Feb 25, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: UNIVERSAL DISPLAY CORP \PA\ (OLED)
CIK: 0001005284
Period of Report: 2021-02-23

Reporting Person: Comparin Cynthia Jane (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-23	Common Stock	P	170	$203.94	Acquired	1498	Indirect
2021-02-23	Common Stock	P	492	$205.18	Acquired	1990	Indirect
2021-02-23	Common Stock	P	320	$206.15	Acquired	2310	Indirect
2021-02-23	Common Stock	P	412	$207.86	Acquired	2722	Indirect
2021-02-23	Common Stock	P	448	$208.97	Acquired	3170	Indirect
2021-02-23	Common Stock	P	458	$209.85	Acquired	3628	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1076	Direct

Footnotes

F1: Represents the weighted average of a range of purchase prices from $203.51 to $204.39. 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 purchased at each separate price.

F2: These shares are held by Ms. Comparin's spouse and are being reported as beneficially owned by her.

F3: Represents the weighted average of a range of purchase prices from $204.69 to $205.57. 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 purchased at each separate price.

F4: Represents the weighted average of a range of purchase prices from $205.79 to $206.33. 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 purchased at each separate price.

F5: Represents the weighted average of a range of purchase prices from $207.38 to $208.38. 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 purchased at each separate price.

F6: Represents the weighted average of a range of purchase prices from $208.41 to $209.30. 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 purchased at each separate price.

F7: Represents the weighted average of a range of purchase prices from $209.42 to $210.25. 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 purchased at each separate price.