Vanguard disaggregates holdings; Universal Display (OLED) shows 0% ownership

Rhea-AI Filing Summary

Universal Display Corp: Schedule 13G/A amendment reporting ownership update by The Vanguard Group. The filing states that, following an internal realignment effective January 12, 2026, certain Vanguard subsidiaries will report beneficial ownership separately. The Vanguard Group reports 0 shares beneficially owned of Common Stock and 0% of the class as of the filing, reflecting disaggregation under SEC Release No. 34-39538.

The filing is signed by Ashley Grim, Head of Global Fund Administration, dated 03/27/2026. It clarifies voting and dispositive powers as 0 across sole and shared categories and states no single outside person holds more than 5% of the class related to these reported securities.

Insights

Institutional Ownership Analyst

Vanguard disaggregated reporting shows zero beneficial ownership after internal realignment.

The amendment explains that on January 12, 2026 Vanguard reorganized and certain subsidiaries will now report separately in reliance on SEC Release No. 34-39538. The filing lists 0 shares and 0% ownership, and specifies zero sole/shared voting and dispositive power.

Cash‑flow treatment is not applicable here; subsequent filings from the listed Vanguard entities will show any holdings if present. Monitor future Schedules filed by Vanguard subsidiaries for material holdings.

Corporate Governance Specialist

Amendment is administrative and clarifies beneficial‑ownership attribution under established SEC guidance.

The disclosure cites SEC Release No. 34-39538 to justify disaggregation, indicating previously aggregated holdings are being reported separately. The form emphasizes that no other person shown has >5% interest in the securities reported.

Impact on Universal Display governance is neutral in this excerpt; any investor‑relevant change would appear in later Schedule filings from the specific Vanguard subsidiaries that report holdings directly.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 12)

Universal Display Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

91347P105

(CUSIP Number)

03/13/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 91347P105

1

Names of Reporting Persons

The Vanguard Group

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

PENNSYLVANIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

0 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: On January 12, 2026, The Vanguard Group, Inc. went through an internal realignment. In accordance with SEC Release No. 34-39538 (January 12, 1998), certain subsidiaries or business divisions of subsidiaries of The Vanguard Group, Inc., that formerly had, or were deemed to have, beneficial ownership with The Vanguard Group, Inc., will report beneficial ownership separately (on a disaggregated basis) from The Vanguard Group, Inc. in reliance on such release. These subsidiaries and/or business divisions pursue the same investment strategies as previously pursued by The Vanguard Group, Inc. prior to the realignment. Further in accordance with SEC Release No. 34-39538 (January 12, 1998), The Vanguard Group, Inc. no longer has, or is deemed to have, beneficial ownership over securities beneficially owned by such subsidiaries and/or business divisions.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Universal Display Corp
(b)	Address of issuer's principal executive offices: 250 Phillips Blvd, Trenton, NJ, 08618
Item 2.
(a)	Name of person filing: The Vanguard Group
(b)	Address or principal business office or, if none, residence: 100 Vanguard Blvd.,, Malvern, PA, 19355
(c)	Citizenship: PA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.:
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 0
(b)	Percent of class: 0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The Vanguard Group, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein.No one other person's interest in the securities reported herein is more than 5%.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

The Vanguard Group

Signature:	Ashley Grim
Name/Title:	Head of Global Fund Administration
Date:	03/27/2026

FAQ

What does The Vanguard Group's Schedule 13G/A say about OLED ownership?

It reports that The Vanguard Group beneficially owns 0 shares of Universal Display Corp common stock and holds 0% of the class, with zero voting and dispositive power, per the amendment signed 03/27/2026.

Why did Vanguard change how it reports its holdings for OLED?

Vanguard implemented an internal realignment effective January 12, 2026, and in reliance on SEC Release No. 34-39538 certain subsidiaries now report beneficial ownership separately from The Vanguard Group, Inc.

Does this Schedule 13G/A indicate Vanguard sold OLED shares?

No. The filing explains a reporting change due to disaggregation under SEC guidance and shows 0 shares beneficially owned by The Vanguard Group after the realignment; it does not state a sale transaction.

Who signed the amendment and when was it filed?

The amendment is signed by Ashley Grim, Head of Global Fund Administration, with the signature date shown as 03/27/2026 in the filing excerpt.

Does anyone else hold more than 5% of OLED according to this filing?

The filing states that no other person's interest in the securities reported is more than 5%, and it notes that Vanguard-managed investment companies and accounts may have rights to dividends or proceeds.