Brian Millard - 07 Mar 2026 Form 4 Insider Report for UNIVERSAL DISPLAY CORP \PA\ (OLED)

Role: VP/CFO
Signature: /s/ Brian Millard (by Mauro Premutico as power of attorney)
Issuer symbol: OLED
Transactions as of: 07 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 10 Mar 2026, 16:00:02 UTC
Previous filing: 06 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Millard Brian	VP/CFO	C/O UNIVERSAL DISPLAY CORPORATION, 250 PHILLIPS BLVD., EWING	/s/ Brian Millard (by Mauro Premutico as power of attorney)	10 Mar 2026	0001944918

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OLED	Common Stock	Award		+1,497	+8.4%	$0.000000^*	19,407	07 Mar 2026	Direct	F1
transaction	OLED	Common Stock	Tax liability		-635	-3.3%	$97.03^*	18,772	07 Mar 2026	Direct	F2
transaction	OLED	Common Stock	Award		+4,942	+26%	$0.000000^*	23,714	07 Mar 2026	Direct	F1
transaction	OLED	Common Stock	Tax liability		-2,096	-8.8%	$97.03^*	21,618	07 Mar 2026	Direct	F3
transaction	OLED	Common Stock	Award		+1,596	+7.4%	$0.000000^*	23,214	07 Mar 2026	Direct	F1
transaction	OLED	Common Stock	Tax liability		-677	-2.9%	$97.03^*	22,537	07 Mar 2026	Direct	F4
transaction	OLED	Common Stock	Tax liability		-509	-2.3%	$97.03^*	22,028	07 Mar 2026	Direct	F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares were granted to the Reporting Person as performance units under the Company's Long Term Incentive Plan as part of 2023 compensation and vested on March 7, 2026 subject to the satisfaction of certain performance conditions, which the Company's Human Capital Committee certified on February 17, 2026 as having occurred.
F2	These shares were withheld to satisfy a tax liability in connection with the vesting on March 7, 2026 of 1,497 shares of restricted stock previously granted to the Reporting Person.
F3	These shares were withheld to satisfy a tax liability in connection with the vesting on March 7, 2026 of 4,942 shares of restricted stock previously granted to the Reporting Person.
F4	These shares were withheld to satisfy a tax liability in connection with the vesting on March 7, 2026 of 1,596 shares of restricted stock previously granted to the Reporting Person.
F5	These shares were withheld to satisfy a tax liability in connection with the vesting on March 7, 2026 of 1,202 shares of restricted stock previously granted to the Reporting Person.