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 holding entries. Institutional Investment Manager Filing this Report: Name: BeaconLight Capital, LLC Address: 1330 Avenue of the Americas, 6th floor New York, New York 10019 13 File Number: 028-15209 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: Ed Bosek Title: Managing Member Phone: (212) 612-3130 Signature, Place and Date of Signing: /s/ Ed Bosek New York, New York May 15, 2013 ------------- ------------------- ------------- [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 managers(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).) List of Other Managers Reporting for this Manager: None Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 31 Form 13F Information Table Value Total: $109,383 (thousands) List of Other Included Managers: None 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. FORM 13F INFORMATION TABLE COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 TITLE VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER OF CLASS CUSIP (X1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ACCRETIVE HEALTH INC COM 00438V103 1,727 170,000 SH SOLE NONE 170,000 AMERICAN EXPRESS CO COM 025816109 3,036 45,000 CALL SOLE NONE 45,000 BAIDU INC SPON ADR REP A 056752108 1,052 12,000 SH SOLE NONE 12,000 BRUNSWICK CORP COM 117043109 2,224 65,000 SH SOLE NONE 65,000 ELLIE MAE INC COM 28849P100 2,095 87,100 SH SOLE NONE 87,100 EXPRESS SCRIPTS HLDG CO COM 30219G108 6,338 110,000 SH SOLE NONE 110,000 FIFTH & PAC COS INC COM 316645100 566 30,000 SH SOLE NONE 30,000 GRIFOLS S A SP ADR REP B NVT 398438408 2,031 69,999 SH SOLE NONE 69,999 HORNBECK OFFSHORE SVCS INC N COM 440543106 1,951 42,000 SH SOLE NONE 42,000 ISHARES TR RUSSELL 2000 464287655 4,249 45,000 PUT SOLE NONE 45,000 JOS A BANK CLOTHIERS INC COM 480838101 5,187 130,000 SH SOLE NONE 130,000 JOS A BANK CLOTHIERS INC COM 480838101 5,590 140,100 CALL SOLE NONE 140,100 JOS A BANK CLOTHIERS INC COM 480838101 5,187 130,000 PUT SOLE NONE 130,000 LORILLARD INC COM 544147101 807 20,000 PUT SOLE NONE 20,000 MICRON TECHNOLOGY INC COM 595112103 1,198 120,000 SH SOLE NONE 120,000 MICRON TECHNOLOGY INC COM 595112103 898 90,000 CALL SOLE NONE 90,000 NORFOLK SOUTHERN CORP COM 655844108 6,552 85,000 SH SOLE NONE 85,000 OWENS CORNING NEW COM 690742101 4,732 120,000 SH SOLE NONE 120,000 PPG INDS INC COM 693506107 536 4,000 SH SOLE NONE 4,000 QUIKSILVER INC COM 74838C106 1,032 170,000 SH SOLE NONE 170,000 REALOGY HLDGS CORP COM 75605Y106 4,664 95,500 SH SOLE NONE 95,500 SANDISK CORP COM 80004C101 6,595 120,000 SH SOLE NONE 120,000 SANDISK CORP COM 80004C101 550 10,000 CALL SOLE NONE 10,000 SEMGROUP CORP CL A 81663A105 8,792 170,000 SH SOLE NONE 170,000 SIX FLAGS ENTMT CORP NEW COM 83001A102 2,899 40,000 SH SOLE NONE 40,000 SPDR S&P 500 ETF TR TR UNIT 78462F103 4,700 30,000 PUT SOLE NONE 30,000 SUSSER HLDGS CORP COM 869233106 12,011 235,000 SH SOLE NONE 235,000 TARGA RES CORP COM 87612G101 3,194 47,000 SH SOLE NONE 47,000 ULTRATECH INC COM 904034105 5,139 130,000 SH SOLE NONE 130,000 VIVUS INC COM 928551100 1,594 144,900 SH SOLE NONE 144,900 VIVUS INC COM 928551100 2,257 205,200 CALL SOLE NONE 205,200 SK 26749 0002 13822072