UNIVERSAL DISPLAY CORP \PA\ — Director's Dealing 2015

Mar 30, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: UNIVERSAL DISPLAY CORP \PA\ (OLED)
CIK: 0001005284
Period of Report: 2015-03-27

Reporting Person: Mahon Janice K (VP of Tech Commercialization)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-03-27	Common Stock	A	2550	—	Acquired	49409	Direct
2015-03-27	Common Stock	F	944	$46.78	Disposed	48465	Direct

Footnotes

F1: These performance units were granted to Ms. Mahon under the Company's Long Term Incentive Plan as part of her 2013 compensation and vested subject to the satisfaction of certain performance conditions, which our Compensation Committee certified as having occurred on March 27, 2015.

F2: These shares were withheld to satisfy a tax liability in connection with the vesting on March 27, 2015 of 2,550 shares of restricted stock previously granted to Ms. Mahon.