13F-HR/A 1 efc8-0561_emailform13fhra.txt THIS FILING LISTS SECURITIES HOLDINGS REPORTED ON THE FORM 13F FILED ON FEBRUARY 14, 2008 PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT AND FOR WHICH SUCH CONFIDENTIAL TREATMENT EXPIRES ON MAY 15, 2008. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: December 31, 2007 -------------------------------- Check here if Amendment [ ]; Amendment Number: 1 --------------- This Amendment (Check only one.): [ ] is a restatement. [X] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Magnetar Financial LLC Address: 1603 Orrington Avenue 13th Floor Evanston, IL 60201 Form 13F File Number: 28-11800 -------- The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Michael Turro Title: Chief Compliance Officer Phone: (847) 905-4690 Signature, Place, and Date of Signing: /s/ Michael Turro Evanston, IL March 14, 2008 --------------------- ----------------- ------------------ [Signature] [City, State] [Date] Report Type (Check only one.): [X] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 ------------------------------ Form 13F Information Table Entry Total: 1 ------------------------------ Form 13F Information Table Value Total: $18,655 ------------------------------ (thousands) List of Other Included Managers: Provide a numbered list of name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. [If there are no entries in this list, state "NONE" and omit the column headings and list entries.] None
MAGNETAR FINANCIAL, LLC FORM 13F Quarter Ended December 31, 2007 --------------------------------------------------------------------------------------------------------------------------------- CLASS VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY ------ ------ -------- --- ---- ---------- ------ ---------------------------------- NAME OF ISSUER TITLE CUSIP (X$1,000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE -------------- ----- ----- --------- ------- --- ---- ---------- -------- ---- ------ ---- --------------------------------------------------------------------------------------------------------------------------------- GENESCO INC COM 371532102 18655 493534 SH SOLE 493534 ---------------------------------------------------------------------------------------------------------------------------------