8-A12B 1 y85603be8va12b.txt UBS AG SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 UBS AG -------------------------------------------------------------------------------- (Exact Name of Registrant as Specified in Its Charter) Switzerland 98-0186363 -------------------------------------------- -------------------------------- (State of Incorporation or Organization) (I.R.S. Employer Identification no.) Bahnhofstrasse 45, Zurich and Aeschenvorstadt 1, Basel -------------------------------------------- -------------------------------- (Address or Principal Executive Offices) (Zip Code) If this form relates to If this form relates to the registration of a the registration of a class of securities class of securities pursuant to Section 12(b) pursuant to Section 12(g) of the Exchange Act and of the Exchange Act and is effective pursuant to is effective pursuant to General Instruction General Instruction A.(c), please check the A.(d), please check the following box: /X/ following box: / / Securities Act registration statement file number to which this form relates: 333-64844 -------------------------------- (If applicable) Securities to be registered pursuant to Section 12(b) of the Act: Title of Each Class Name of Each Exchange on Which To be so Registered Each Class is to be Registered ----------------------------------- ----------------------------------- Enhanced Appreciation American Stock Exchange Securities due May [ ], 2004 (Linked to the performance of the S&P 500(R) Index) ----------------------------------- ----------------------------------- Securities to be registered pursuant to Section 12(g) of the Act: None --------------------------------------------------------------------- (Title of Class) INFORMATION REQUIRED IN REGISTRATION STATEMENT ITEM 1. DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED UBS AG (the "Company") hereby incorporates by reference the description of its securities to be registered hereunder contained in the Preliminary Prospectus Supplement filed with the Commission on March 26, 2003 under Rule 424(b)(2) and in the Prospectus dated February 27, 2003 under "Description of Debt Securities We May Offer" pursuant to an effective Registration Statement on Form F-3 (File No. 333-64844) (the "Additional Registration Statement") under the Securities Act of 1933, as amended, filed with the Commission on December 19, 2002; the Additional Registration Statement, filed pursuant to Rule 429 under the Securities Act, constitutes Post-Effective Amendment No. 4 to the Company's Registration Statement on Form F-1 (File No. 333-46930) (the "Prior Registration Statement") filed with the Commission on September 29, 2000, as previously amended by Post-Effective Amendment No. 1 thereto on Form F-1 filed with the Commission on March 23, 2001, by Post-Effective Amendment No. 2 thereto on Form F-1 filed with the Commission on March 29, 2001 and by Post-Effective Amendment No. 3 thereto on Form F-3 filed with the Commission on May 15, 2001. ITEM 2. EXHIBITS. 1. Debt Indenture, dated as of November 21, 2000, between the Company and U.S. Bank Trust National Association, as debt trustee, including form of debt securities (included as Exhibit 4.1 to the Prior Registration Statement) 2. Form of Enhanced Appreciation Securities due May [ ], 2004 (Linked to the performance of the S&P 500(R) Index) 3. SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized. UBS AG (Registrant) Date: April 23, 2003 By: /s/ Michael Mahaffy -------------------------- Michael Mahaffy Managing Director Equities By: /s/ Jeffrey Sparks -------------------------- Jeffrey Sparks Managing Director Equities