0001132716-19-000006.txt : 20190219 0001132716-19-000006.hdr.sgml : 20190219 20190215194052 ACCESSION NUMBER: 0001132716-19-000006 CONFORMED SUBMISSION TYPE: 13F-HR/A PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20180930 FILED AS OF DATE: 20190219 DATE AS OF CHANGE: 20190215 EFFECTIVENESS DATE: 20190219 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: 19613011 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 false false 0001132716 XXXXXXXX 09-30-2018 09-30-2018 true 1 NEW HOLDINGS true 12-31-2018 09-30-2018 Confidential Treatment Expired UBS OCONNOR LLC

ONE NORTH WACKER DRIVE 32ND FLOOR CHICAGO IL 60606

13F HOLDINGS REPORT 028-06327 N Sal DiGangi 3125257730 Sal DiGangi New York NY 02-15-2019 0 1 427219 INFORMATION TABLE 2 ubsocQ318_A1infotable.xml AETNA IN COM 00817Y108 427219000 2106085 SH DFND 2106085 0 0