UNIVERSAL DISPLAY CORP \PA\ — Director's Dealing 2026

Feb 19, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: UNIVERSAL DISPLAY CORP \PA\ (OLED)
CIK: 0001005284
Period of Report: 2026-02-17

Reporting Person: Mahon Janice K (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-17	Common Stock	A	7300	—	Acquired	59886	Direct
2026-02-18	Common Stock	F	770	$119.92	Disposed	59116	Direct

Footnotes

F1: These units were granted to the Reporting Person under the Company's Long Term Incentive Plan as part of the Reporting Person's 2026 compensation and are subject to a time-based restriction, with one-third of the total unit amount vesting on each of February 17, 2027, 2028 and 2029.

F2: Includes 35, 31, 34 and 36 shares acquired under the Universal Display Corporation Employee Stock Purchase Plan on March 31, 2025, June 30, 2025, September 30, 2025 and December 31, 2025, respectively.

F3: These shares were withheld to satisfy a tax liability in connection with the vesting on February 18, 2026 of 1,998 shares of restricted stock previously granted to the Reporting Person.