0001104659-16-121183.txt : 20160516 0001104659-16-121183.hdr.sgml : 20160516 20160516093949 ACCESSION NUMBER: 0001104659-16-121183 CONFORMED SUBMISSION TYPE: 13F-HR/A PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20151231 FILED AS OF DATE: 20160516 DATE AS OF CHANGE: 20160516 EFFECTIVENESS DATE: 20160516 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Magnetar Financial LLC CENTRAL INDEX KEY: 0001352851 IRS NUMBER: 043818748 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR/A SEC ACT: 1934 Act SEC FILE NUMBER: 028-11800 FILM NUMBER: 161651103 BUSINESS ADDRESS: STREET 1: 1603 ORRINGTON AVE. STREET 2: 13TH FLOOR CITY: EVANSTON STATE: IL ZIP: 60201 BUSINESS PHONE: (847)905-4400 MAIL ADDRESS: STREET 1: 1603 ORRINGTON AVE. STREET 2: 13TH FLOOR CITY: EVANSTON STATE: IL ZIP: 60201 13F-HR/A 1 primary_doc.xml 13F-HR/A LIVE 0001352851 XXXXXXXX 12-31-2015 12-31-2015 true 1 NEW HOLDINGS true 05-16-2016 05-16-2016 Confidential Treatment Expired Magnetar Financial LLC

1603 ORRINGTON AVE. 13TH FLOOR EVANSTON IL 60201

13F HOLDINGS REPORT 028-11800 Y THIS FILING LISTS SECURITIES HOLDINGS REPORTED ON THE FORM 13F FILED ON NOVEMBER 16, 2015 PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT AND FOR WHICH THE CONFIDENTIAL TREATMENT EXPIRED ON MAY 16, 2016 OR IS NO LONGER NECESSARY. MICHAEL TURRO 847-905-4690 MICHAEL TURRO EVANSTON IL 05-16-2016 0 11 1000776 false INFORMATION TABLE 2 a16-11191_6informationtable.xml INFORMATION TABLE * BAKER HUGHES INC COM 057224107 33564 727271 SH SOLE 727271 0 0 * CABLEVISION SYS CORP CL A NY CABLVS 12686C109 79205 2482924 SH SOLE 2482924 0 0 * HEALTH NET INC COM 42222G108 164888 2408532 SH SOLE 2408532 0 0 * OFFICE DEPOT INC COM 676220106 55833 9899489 SH SOLE 9899489 0 0 * PFIZER INC COM 717081103 29052 900000 SH Call SOLE 900000 0 0 * SANDISK CORP COM 80004C101 388353 5110579 SH SOLE 5110579 0 0 * STAPLES INC COM 855030102 4735 500000 SH Call SOLE 500000 0 0 * STARWOOD HOTELS&RESORTS WRLD COM 85590A401 211598 3054246 SH SOLE 3054246 0 0 * WILLIAMS COS INC DEL COM 969457100 12375 481500 SH Call SOLE 481500 0 0 * WILLIAMS COS INC DEL COM 969457100 6425 250000 SH Put SOLE 250000 0 0 * WESTERN DIGITAL CORP COM 958102105 14748 245600 SH Call SOLE 245600 0 0