0001132716-14-000009.txt : 20140514 0001132716-14-000009.hdr.sgml : 20140514 20140514115116 ACCESSION NUMBER: 0001132716-14-000009 CONFORMED SUBMISSION TYPE: 13F-HR/A PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20130630 FILED AS OF DATE: 20140514 DATE AS OF CHANGE: 20140514 EFFECTIVENESS DATE: 20140514 FILER: COMPANY DATA: COMPANY CONFORMED NAME: UBS OCONNOR LLC CENTRAL INDEX KEY: 0001132716 IRS NUMBER: 061569842 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR/A SEC ACT: 1934 Act SEC FILE NUMBER: 028-06327 FILM NUMBER: 14840091 BUSINESS ADDRESS: STREET 1: ONE NORTH WACKER DRIVE 32ND FLOOR CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3125256000 MAIL ADDRESS: STREET 1: ONE NORTH WACKER DRIVE 32ND FLOOR CITY: CHICAGO STATE: IL ZIP: 60606 13F-HR/A 1 primary_doc.xml 13F-HR/A LIVE false true false 0001132716 XXXXXXXX 06-30-2013 06-30-2013 true 3 NEW HOLDINGS true 03-31-2014 06-30-2013 Confidential Treatment Expired UBS OCONNOR LLC

ONE NORTH WACKER DRIVE 32ND FLOOR CHICAGO IL 60606

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