13F-HR/A 1 efc7-1374_13fhra.txt THIS FILING LISTS SECURITIES HOLDINGS REPORTED ON THE FORM 13F FILED ON FEBRUARY 14, 2007 PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT AND FOR WHICH SUCH CONFIDENTIAL TREATMENT EXPIRED ON MAY 15, 2007 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: December 29, 2006 ----------------- Check here if Amendment [X]: 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: 028-11800 ----------------- 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 May 14, 2007 ----------------------------- ------------------ ------------ [Signature] [City, State] [Date] Report Type (Check only one): MAGNETAR FINANCIAL LLP FORM 13F Quarter Ended December 29, 2006 |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: 11 ----------------------- Form 13F Information Table Value Total: $573,069 ----------------------- (in thousands) List of Other Included Managers: Provide a numbered list of the 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. None MAGNETAR FINANCIAL LLC FORM 13F Quarter Ended December 29, 2006
---------------------------------------------------------------------------------------------------------------------------------- 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 -------------- ----- ----- --------- ------- --- ---- ---------- -------- ---- ------ ---- ---------------------------------------------------------------------------------------------------------------------------------- BANK NEW YORK INC COM 064057102 $121,417 3,084,000 SH SOLE 3,084,000 ---------------------------------------------------------------------------------------------------------------------------------- CAREMARK RX INC COM 141705103 $45,688 800,000 SH SOLE 800,000 ---------------------------------------------------------------------------------------------------------------------------------- DELTA & PINE COM 247357106 $583 14,420 SH SOLE 14,420 ---------------------------------------------------------------------------------------------------------------------------------- ELKCORP COM 287456107 $10,296 250,572 SH SOLE 250,572 ---------------------------------------------------------------------------------------------------------------------------------- FOUR SEASONS HOTEL LTD VTG SH 35100E104 $40,995 500,000 SH SOLE 500,000 ---------------------------------------------------------------------------------------------------------------------------------- GIANT INDS INC COM 374508109 $17,992 239,121 SH SOLE 239,121 ---------------------------------------------------------------------------------------------------------------------------------- KINROSS GOLD CORP COM NO PAR 496902404 $5,214 440,000 SH SOLE 440,000 ---------------------------------------------------------------------------------------------------------------------------------- PHELPS DODGE CORP COM 717265102 $90,292 754,200 SH SOLE 754,200 ---------------------------------------------------------------------------------------------------------------------------------- PHELPS DODGE CORP COM 717265102 $69,258 578,500 SH PUT SOLE 578,500 ---------------------------------------------------------------------------------------------------------------------------------- UNIVISION COMMUNIC CL A 914906102 $168,574 4,759,300 SH SOLE 4,759,300 ---------------------------------------------------------------------------------------------------------------------------------- VALASSIS COMMUNIC COM 918866104 $2,760 190,400 SH SOLE 190,400 ----------------------------------------------------------------------------------------------------------------------------------