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, 2013 Check here if Amendment 			[ ]; Amendment Number: This Amendment (Check only one):		[ ] is a restatement. 						[ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name:		Coghill Capital Management, LLC Address:	One North Wacker Drive 		Suite 3605 		Chicago, Illinois 60606 Form 13F File Number: 028-10376 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: Clint D. Coghill Title: Chief Investment Officer Phone: 312-324-2000 Signature, Place, and Date of Signing: /s/ Clint D. Coghill Chicago, Illinois May 15, 2013 -------------------------- --------------------------- ------------------ [Signature] [City, State] [Date] ----------------------------------------------------------------------------- Report type (Check only one.): [X] 13F HOLDINGS REPORT. (Check here if all holdings of this report manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holding 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:		15 Form 13F Information Table Value Total:		146,209 	(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. [If there are no entries in this list, state NONE and omit the column headings and list entries.] NONE ---NAME OF---	TITLE OF	-CUSIP-		VALUE-	SHARES/		SECURTY	DISCR-	OTHER VOTING ---ISSUER----	-CLASS-		-------		X$1000	PRN AMT		TYPE	ETION	MGRS	AUTHORITY AUTOBYTEL INC	COM 	05275N205	 6373	 1468337	Sh 	Sole	None	Sole GENERAL MOLY 	COM 	370373102	 17907	 8102806	Sh 	Sole	None	Sole HOLLYWOOD MED	COM 	436233100	 2568	 2054192	Sh 	Sole	None	Sole KULICKE & SOF	COM 	501242101	 1806	 156219	Sh 	Sole	None	Sole MERCER INTERN	COM 	588056101	 1394	 201808	Sh 	Sole	None	Sole PERION NETWOR	COM 	M78673106	 4975	 504516	Sh 	Sole	None	Sole POWER SOLUTIO	COM 	73933G202	 72	 2776	Sh 	Sole	None	Sole RENTECH INC 	COM 	760112102	 1335	 568216	Sh 	Sole	None	Sole STARTEK INC 	COM 	85569C107	 1435	 245219	Sh 	Sole	None	Sole ZYNGA INC - C	COM 	98986T108	 2932	 872500	Sh 	Sole	None	Sole BOSTON BEER C	COM 		100557107	 9531	 59700	PUT 	Sole	None	Sole ISHARES RUSSE	COM 		464287655	 67820	 718200	PUT 	Sole	None	Sole KULICKE & SOF	COM 		501242101	 12300	 1064000	CALL	Sole	None	Sole POLYCOM INC 	COM 		73172K104	 885	 79900	CALL	Sole	None	Sole ZILLOW INC-CL	COM 		98954A107	 14876	 272100	PUT 	Sole	None	Sole