13F-HR 1 form13fhr08663_03312013.txt 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: Mast Capital Management, LLC Address: 200 Clarendon Street, 51st Floor Boston, Massachusetts 02116 Form 13F File Number: 28-15377 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: David J. Steinberg Title: Manager Phone: (617) 375-3019 Signature, Place, and Date of Signing: /s/ David J. Steinberg, Boston, MA, May 15, 2013 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: 1 ----------------------------- Form 13F Information Table Entry Total: 6 ----------------------------- Form 13F Information Table Value Total: $605,897 ----------------------------- (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. No. Form 13F File Number Name 1 28-15379 David J. Steinberg
FORM 13F INFORMATION TABLE COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 ----------------------------- -------------- --------- -------- ------------------ ---------- -------- ----------------------------- VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE ----------------------------- -------------- --------- -------- --------- --- ---- ---------- -------- --------- --------- --------- DENBURY RES INC COM NEW 247916 20 8 9,933 532,616 SH OTHER 1 0 532,616 0 DISH NETWORK CORP CL A 25470M 10 9 9,740 257,000 SH OTHER 1 0 257,000 0 SAFEWAY INC COM NEW 786514 20 8 10,124 384,193 SH OTHER 1 0 384,193 0 SAFEWAY INC COM NEW 786514 20 8 10,540 400,000 SH CALL OTHER 1 0 400,000 0 SPDR S&P 500 ETF TR TR UNIT 78462F 10 3 548,355 3,500,000 SH PUT OTHER 1 0 3,500,000 0 TITAN INTL INC ILL COM 88830M 10 2 17,205 816,170 SH OTHER 1 0 816,170 0