UBS (AMUB) Form 6-K swaps Homburger AG legal opinion on F-3 shelf

Rhea-AI Filing Summary

UBS AG submitted a Form 6-K as a foreign private issuer to update legal documentation tied to its existing Form F-3 shelf registration. The report incorporates into that registration statement a new legal opinion from Homburger AG, acting as special Swiss counsel to UBS, which is filed as Exhibit 5.3 and replaces Homburger’s prior opinion dated January 29, 2026. The filing is administrative and does not present new financial results or major corporate transactions.

Key Terms

Form 6-K, foreign private issuer, Form F-3, registration statement, +1 more

5 terms

Form 6-K regulatory

"FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER"

A Form 6-K is a report that companies listed in certain countries file to provide important updates, such as financial results, corporate changes, or other significant information, to regulators and investors. It functions like an official company update or news release, helping investors stay informed about developments that could affect their investment decisions.

foreign private issuer regulatory

"REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

Form F-3 regulatory

"registration statement of UBS AG on Form F-3"

Form F-3 is a U.S. securities filing that lets eligible foreign companies pre-register and then quickly sell shares or other securities to raise money, because they already meet ongoing reporting and size tests. For investors it signals that the company is up-to-date with regulatory disclosure and has an efficient way to issue new securities — similar to a pre-approved credit line — which can mean faster capital raises but also potential dilution of existing holdings.

registration statement regulatory

"Registration Statement of UBS AG on Form F-3"

A registration statement is a formal document that companies file with a government agency to offer new shares of stock to the public. It provides essential information about the company's finances, operations, and risks, helping investors make informed decisions. Think of it as a detailed product description that ensures transparency and trust before buying into a company.

special Swiss counsel financial

"Opinion of Homburger AG, as special Swiss counsel to UBS AG"

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

Date: April 20, 2026

Commission File Number: 1-15060

UBS AG

(Translation of Registrant’s Name Into English)

Bahnhofstrasse 45, Zurich, Switzerland, and
Aeschenvorstadt 1, Basel, Switzerland
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

This Form 6-K is hereby incorporated by reference into the registration statement of UBS AG on Form F-3 (Registration Number 333-283672).

This Form 6-K consists of the Opinion of Homburger AG, as special Swiss counsel to UBS AG (“UBS”), which appears as an exhibit hereto and is incorporated into this Form 6-K as if set forth in full herein. The Opinion of Homburger AG is filed herewith as Exhibit 5.3 to the Registration Statement of UBS AG on Form F-3 initially filed on December 6, 2024 and effective February 6, 2025 (File No. 333-283672) and replaces the existing Opinion of Homburger AG dated January 29, 2026, as special Swiss Counsel to UBS filed therewith as Exhibit 5.3.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	UBS AG
	By:	/s/ Elizabeth Scanlon
		Name: Elizabeth Scanlon
		Title: Executive Director
	By:	/s/ Yan Zhang
		Name: Yan Zhang
		Title: Director

Date: 20^th April 2026

FAQ

What does UBS AG’s latest Form 6-K filing report for AMUB?

UBS AG’s Form 6-K updates the legal opinion linked to its existing Form F-3 registration statement. It files a new Homburger AG counsel opinion as Exhibit 5.3, replacing an earlier January 29, 2026 opinion.

Does the UBS (AMUB) Form 6-K include new financial results?

The Form 6-K does not present new financial results. It is an administrative filing focused on replacing the existing Homburger AG legal opinion related to UBS AG’s Form F-3 registration statement.

How is the UBS AG Form 6-K related to its Form F-3 registration?

The Form 6-K is incorporated by reference into UBS AG’s Form F-3 registration statement. It supplies an updated Homburger AG legal opinion as Exhibit 5.3, which becomes part of that registration framework.

What change is made to the Homburger AG opinion in this UBS filing?

The filing replaces the Homburger AG opinion dated January 29, 2026 with a new opinion filed as Exhibit 5.3. Homburger AG continues to act as special Swiss counsel to UBS AG within the Form F-3 registration.

Who signed the UBS AG Form 6-K filed for AMUB?

The Form 6-K was signed on behalf of UBS AG by Executive Director Elizabeth Scanlon and Director Yan Zhang. Their signatures confirm the company’s authorization of the updated Homburger AG opinion filing.

Filing Exhibits & Attachments

1 document

Other Documents

• EX-5 OPINION OF HOMBURGER AG 41.9 KB