13F-HR 1 twinsecuritiesinc13fdec07.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: December 31, 2007 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: Address: 13 File Number: 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 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: Title: Phone: Signature, Place and Date of Signing: January 22, 2008 Report Type (Check only one.): [ X] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934 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: 85050 FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP x($1000) PRN AMT PRN CALL DISCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- -------- --------- -------- -------- -------- D ALLIANCE DATA SYS CO RP COM ST COMMON STOCK 018581108 38136 463450 SH SOLE 508552 0 0 D CLEAR CHANNEL COMMUN ICATIONS COMMON STOCK 184502102 22225 565715 SH SOLE 643830 0 0 D EQUITY MEDIA HLDGS CORP WRNT WARRANTS 294725114 8 40000 SH SOLE 40000 0 0 D FORESTAR REAL COMMON STOCK 346233109 527 22336 SH SOLE 22336 0 0 D GUARANTY FINL COMMON STOCK 40108N106 3038 55013 SH SOLE 89541 0 0 D HARRAHS ENTERTAINMEN T INC COM COMMON STOCK 413619107 16131 160626 SH SOLE 181750 0 0 D LIGAND PHARMACEUTICA LS INC CL COMMON STOCK 53220K207 1633 322615 SH SOLE 341573 0 0 D LIGAND PHARMACEUTICA LS INC CL OPTIONS - CALLS 99ADH2076 411 85000 SH CALL SOLE 85000 0 0 D NABI BIOPHARMACEUTIC ALS COM S COMMON STOCK 629519109 3535 859763 SH SOLE 979077 0 0 D PROSPECT CAPITAL COM STK COMMON STOCK 74348T102 399 26884 SH SOLE 30600 0 0 D PROTECTION ONE INC COM STK COMMON STOCK 743663403 411 36404 SH SOLE 34792 0 0 D SLM CORP EDNOTES BOO K ENTRY C COMMON STOCK 78442P106 1389 49277 SH SOLE 69013 0 0 D TEMPLE-INLAND INC COM STK COMMON STOCK 879868107 1397 67012 SH SOLE 67012 0 0 D TEMPLE-INLAND INC COM STK OPTIONS - CALLS 99O9T1QK2 317 15200 SH CALL SOLE 15200 0 0 D VENTANA MEDICAL SYST EMS INC C COMMON STOCK 92276H106 7807 78620 SH SOLE 89500 0 0 S REPORT SUMMARY 15 DATA RECORDS 85050 0 OTHER MANAGERS ON WHOSE BEHALF REPORT IS FILED