13F-HR/A 1 d301830d13fhra.txt 13F-HR/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2011 Check here if Amendment [x]; Amendment Number: 3 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 February 14, 2012 ------------------- --------------- ------------------ [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: 2 Form 13F Information Table Value Total: $ 43,374 (thousands) THIS FILING LISTS SECURITIES HOLDINGS REPORTED ON THE FORM 13F FILED ON MAY 16, 2011 PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT AND FOR WHICH THAT CONFIDENTIAL TREATMENT EXPIRED. List of Other Included Managers: NONE FORM 13F INFORMATION TABLE
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 ------------------------------- -------- --------- -------- ----------------- ---------- -------- ------------------ VOTING AUTHORITY NAME OF TITLE OF VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER ------------------ ISSUER CLASS CUSIP [x$1000] PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ------------------------------- -------- --------- -------- ------- --- ----- ---------- -------- ------ ------ ---- * DOLLAR THRIFTY AUTOMOTIVE GP COM 256743105 1,668 25000 SH SOLE 25000 * DOLLAR THRIFTY AUTOMOTIVE GP COM 256743105 41,706 625000 SH CALL SOLE 625000