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: June 15, 2015

Commission File Number: 1-15060

UBS AG

(Registrant’s Name)

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  x            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 333-204908).

This Form 6-K consists of two Opinions of Cadwalader, Wickersham & Taft LLP, as special counsel and as special U.S. tax counsel to UBS AG and a Consent of Cadwalader, Wickersham & Taft LLP, as special U.S. tax counsel to UBS AG, all of which appear as exhibits hereto and are incorporated into this Form 6-K as if set forth in full herein. The Opinions and Consent of Cadwalader, Wickersham & Taft LLP are filed herewith as exhibits to the Registration Statement of UBS AG on Form F-3 filed on June 12, 2015 (File No. 333-204908).

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EXHIBIT INDEX

Exhibit Index
Exhibit 5.1	Opinion of Cadwalader, Wickersham & Taft LLP, special counsel to UBS AG
Exhibit 8.1	Opinion of Cadwalader, Wickersham & Taft LLP, special U.S. tax counsel to UBS AG
Exhibit 23.1	Consent of Cadwalader, Wickersham & Taft LLP, special U.S. tax counsel to UBS AG (included in Exhibit 8.1)

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INCORPORATION BY REFERENCE

This report on Form 6-K shall be deemed to be incorporated by reference in the registration statement on Form F-3 (Registration Number: 333-204908) of UBS AG and to be a part thereof from the date on which this report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

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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/ Kiye Sakai
	Name:	Kiye Sakai
	Title:	Managing Director
By:	/s/ Sarah Starkweather
	Name:	Sarah Starkweather
	Title:	Executive Director

Date: 15^th June 2015

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