0001104659-16-139594.txt : 20160815 0001104659-16-139594.hdr.sgml : 20160815 20160815090633 ACCESSION NUMBER: 0001104659-16-139594 CONFORMED SUBMISSION TYPE: 13F-HR/A PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20150630 FILED AS OF DATE: 20160815 DATE AS OF CHANGE: 20160815 EFFECTIVENESS DATE: 20160815 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: 161830298 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 06-30-2015 06-30-2015 true 4 NEW HOLDINGS true 08-15-2016 08-15-2016 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 AUGUST 14, 2015 PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT AND FOR WHICH THE CONFIDENTIAL TREATMENT EXPIRED ON AUGUST 15, 2016. MICHAEL TURRO 847-905-4690 MICHAEL TURRO EVANSTON IL 08-15-2016 0 3 122001 false INFORMATION TABLE 2 a16-16667_6informationtable.xml INFORMATION TABLE * AETNA INC NEW COM 00817Y108 31865 250000 SH Call SOLE 250000 0 0 * HUMANA INC COM 444859102 33173 173428 SH SOLE 173428 0 0 * HUMANA INC COM 444859102 56963 297800 SH Put SOLE 297800 0 0