13F-HR 1 c49366e13fvhr.txt FORM 13F-HR 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, 2008 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: CALAMOS PARTNERS LLC Address: 2020 Calamos Court Naperville, 60563 Form 13F File Number: 028-11885 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: Joseph B. O'Boyle Title: Chief Compliance Officer Phone: (630) 245-7200 Signature, Place, and Date of Signing: /s/ Joseph B. O'Boyle Naperville, Illinois February 11, 2009 ------------------------------------- -------------------- ----------------- [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: Form 13F Information Table Entry Total: 43 Form 13F Information Table Value Total: $ 15,629 (thousands)

Column 81 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 ~~Voting~~Column ~~Authority~~8 ~~Column~~------------------------------ 1--------------------- ~~Column~~--------- 2---------- ~~Column~~-------- 3---------- ~~Value~~-------- ~~SHS~~----------------- PRN or ~~PRN~~Voting Authority Value SHS CALL Investment Other -----------------~~---~~ ~~Names~~Title of Issuer Title of Class Cusip (x1000) Amount /PUT Discretion Managers Sole Shared None ------------------------------ --------------------- --------- ---------- -- ------ --- ---- ---------- -------- ------ ------ ---- ~~AGCO~~ALPHA ~~CORP~~NATURAL ~~COMMON~~RESOURCES ~~STOCK~~INC ~~001084102~~CONVERTIBLE $SECURITY ~~416~~02076XAA0 ~~15800~~324 ~~shs~~500000 ~~sole~~prn ~~none~~Sole ~~15800~~None 500 0 ~~AGCO~~BRISTOW ~~CORP~~GROUP ~~1.75%~~INC ~~CASH PAY~~ CONVERTIBLE ~~SEN~~PREFERRED ~~001084AL6~~SECURITY $110394400 ~~587~~293 ~~450000~~8000 ~~prn~~shs ~~sole~~Sole ~~none~~None ~~450~~8000 0 ~~ABAXIS~~CARRIZO ~~INC~~OIL&GAS ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~002567105~~144577AA1 $501 ~~1924~~1100000 ~~86000~~prn ~~shs~~Sole ~~sole~~None ~~none~~1100 ~~86000~~ 0 ~~ADVANCED~~CENTRAL ~~MED~~EURO ~~OPTICS~~DISTRIBUTION ~~2.50%~~CP ~~CASH PAY~~ CONVERTIBLE ~~SEN~~SECURITY ~~00763MAG3~~153435902 $1 ~~288~~35 ~~250000~~shs ~~prn~~CALL ~~sole~~Sole ~~none~~None ~~250~~35 0 ~~AIR~~CENTRAL ~~METHODS~~EURO ~~CORP~~DISTRIBUTION ~~COMMON~~CP ~~STOCK~~CONVERTIBLE ~~009128307~~SECURITY $153435AA0 ~~1833~~295 ~~70000~~590000 ~~shs~~prn ~~sole~~Sole ~~none~~None ~~70000~~590 0 ~~ALLIANT~~CIENA ~~TECHSYS~~CORP ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~018804104~~171779AE1 $358 ~~374~~1000000 ~~4900~~prn ~~shs~~Sole ~~sole~~None ~~none~~1000 ~~4900~~ 0 ~~ALLIANT~~COMMSCOPE ~~TECHSYS~~INC 3% CONVERTIBLE ~~SENIOR~~SECURITY ~~SUBORDIN~~203372AD9 ~~018804AK0~~300 $300000 ~~463 400000~~ prn ~~sole~~Sole ~~none~~None ~~400~~300 0 ~~AMERICAN~~COVANTA ~~EQUITY~~HOLDING ~~INVT~~CORP ~~LIFE~~CONVERTIBLE HLSECURITY ~~COMMON~~22282EAA0 ~~STOCK~~458 ~~025676206~~500000 $prn ~~144~~Sole ~~13500~~None ~~shs~~500 ~~sole~~0 ~~none~~DIGITAL ~~13500~~RIVER 0CONVERTIBLE ~~AMERICAN~~SECURITY ~~EQUITY~~25388BAB0 ~~INVT~~501 ~~5.25%~~500000 ~~SENIOR~~prn ~~UNSECURED~~Sole ~~CONVERT~~None ~~025676AE7~~500 $0 ~~313~~EMC ~~300000~~CORP -MASS CONVERTIBLE SECURITY 268648AM4 470 500000 prn ~~sole~~Sole ~~none~~None ~~300~~500 0 ~~AMERICAN~~ENERGY ~~REPROGRAPHICS~~CONVERSION CODEVICES ~~COMMON~~INC ~~STOCK~~CONVERTIBLE ~~029263100~~SECURITY $292659AA7 ~~1813~~409 ~~50000~~830000 ~~shs~~prn ~~sole~~Sole ~~none~~None ~~50000~~830 0 ~~ANDERSONS~~EXXON ~~INC~~MOBIL CORP COMMON STOCK ~~034164103~~30231G102 $327 ~~2497~~4100 ~~60000~~ shs ~~sole~~Sole ~~none~~None ~~60000~~4100 0 ~~ANDREW~~FEI ~~CORP~~COMPANY ~~3.25% CASH PAY~~ CONVERTIBLE ~~SUB~~SECURITY ~~034425AB4~~30241LAF6 $459 ~~291~~600000 ~~300000~~ prn ~~sole~~Sole ~~none~~None ~~300~~600 0 ~~ANSOFT~~GENERAL CABLE CORP ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~036384105~~369300AD0 $350 ~~1843~~600000 ~~90000~~prn ~~shs~~Sole ~~sole~~None ~~none~~600 ~~90000~~ 0 ~~ANSWERTHINK~~GENERAL ~~INC~~ELECTRIC CO COMMON STOCK ~~036916104~~369604103 $165 ~~1108~~10200 ~~275000~~ shs ~~sole~~Sole ~~none~~None ~~275000~~10200 0 ~~ARENA~~HEWLETT-PACKARD ~~RESOURCES~~CO. ~~INC~~ COMMON STOCK ~~040049108~~428236103 $207 ~~1886~~5700 ~~55000~~ shs ~~sole~~Sole ~~none~~None ~~55000~~5700 0 ~~ARMOR~~HLTH ~~HLDGS~~CORP ~~INC~~CONVERTIBLE ~~COMMON~~SECURITY ~~STOCK~~94769MAG0 ~~042260109~~615 $750000 ~~230~~prn ~~4200~~Sole ~~shs~~None ~~sole~~750 ~~none 4200~~ 0 ~~ARMOR~~HORNBECK ~~HOLDINGS~~OFFSHORE SERVICES INC ~~2.00%~~CONVERTIBLE ~~Senior~~SECURITY ~~Subordinated~~440543AE6 ~~Conv~~333 ~~042260AC3~~600000 $prn ~~357~~Sole None 600 0 INFORMATICA CORP CONVERTIBLE SECURITY 45666QAB8 278 300000 prn ~~sole~~Sole ~~none~~None 300 0 ~~ASPEN~~JA ~~TECHNOLOGY~~SOLAR ~~INC~~HOLDINGS ~~COMMON~~CO ~~STOCK~~CONVERTIBLE ~~045327103~~SECURITY $466090AA5 ~~2624~~420 ~~200000~~1000000 ~~shs~~prn ~~sole~~Sole ~~none~~None ~~200000~~1000 0 ~~BANKRATE~~JOHNSON ~~INC~~& JOHNSON COMMON STOCK ~~06646V108~~478160104 $215 ~~1699~~3600 ~~45000~~ shs ~~sole~~Sole ~~none~~None ~~45000~~3600 0 ~~BANKUNITED~~LAWSON ~~CAPITAL~~SOFTWARE TRINC ~~3.125%~~CONVERTIBLE ~~SENIOR~~SECURITY ~~CONTINGENT~~52078PAA0 ~~CONVE~~350 ~~06652BAE3~~450000 ~~$ 247 250000~~ prn ~~sole~~Sole ~~none~~None ~~250~~450 0 ~~BEA~~LEGG ~~SYSTEMS~~MASON INC ~~COMMON~~CONVERTIBLE ~~STOCK~~PREFERRED ~~073325102~~SECURITY $524901303 ~~138~~220 ~~10550~~10000 shs ~~sole~~Sole ~~none~~None ~~10550~~10000 0 ~~BIOMARIN~~MACROVISION ~~PHARMACEUTICAL~~CORP ~~INC~~CONVERTIBLE ~~COMMON~~SECURITY ~~STOCK~~555904AB7 ~~09061G101~~574 $800000 ~~203~~prn ~~14100~~Sole ~~shs~~None ~~sole~~800 ~~none 14100~~ 0 ~~BIOMARIN~~MENTOR ~~PHARMA~~GRAPHICS ~~2.50%~~CONVERTIBLE ~~SENIOR~~SECURITY ~~SUBORDINATED~~587200AD8 ~~CONV~~870 ~~09061GAC5~~1000000 ~~$ 397 360000~~ prn ~~sole~~Sole ~~none~~None ~~360~~1000 0 ~~CSG~~MILLIPORE ~~SYSTEMS~~CORP ~~INTL~~CONVERTIBLE ~~INC~~SECURITY ~~COMMON~~601073AD1 ~~STOCK~~263 ~~126349109~~300000 $prn ~~346~~Sole ~~14000~~None ~~shs~~300 ~~sole none 14000~~ 0 ~~CSG~~MYLAN ~~SYS~~LABORATORIES ~~INTL~~INC ~~2.50%~~CONVERTIBLE ~~CASH~~PREFERRED ~~PAY~~SECURITY ~~SENIOR~~628530206 ~~SUBORDIN~~395 ~~126349AB5~~600 $shs ~~528~~Sole ~~500000~~None ~~prn~~600 ~~sole none 500~~ 0 ~~CAPITAL~~OMNICOM ~~SOURCE~~GRP ~~INC~~CONVERTIBLE ~~COMMON~~SECURITY ~~STOCK~~681919AK2 ~~14055X102~~298 $300000 ~~217~~prn ~~9251~~Sole ~~shs~~None ~~sole~~300 ~~none 9251~~ 0 ~~CAPITAL~~ORBITAL ~~SOURCE~~SCIENCES ~~INC~~CORP ~~3.50%~~ CONVERTIBLE ~~SENIOR~~SECURITY ~~NOTES~~685564AN6 ~~14055XAD4~~275 $300000 ~~492 500000~~ prn ~~sole~~Sole ~~none~~None ~~500~~300 0 ~~CELADON~~PFIZER ~~GROUP~~ INC COMMON STOCK ~~150838100~~717081103 $354 ~~2314~~20000 ~~105000~~ shs ~~sole~~Sole ~~none~~None ~~105000~~20000 0 ~~CHARMING~~PSS ~~SHOPPES~~WORLD ~~COMMON~~MED ~~STOCK~~CONVERTIBLE ~~161133103~~SECURITY $69366AAB6 ~~317~~338 ~~28200~~300000 ~~shs~~prn ~~sole~~Sole ~~none~~None ~~28200~~300 0 ~~CHARMING~~SBA ~~SHOPPES~~COMM ~~INC~~CORP ~~4.75%~~ CONVERTIBLE ~~SENIOR~~SECURITY ~~NOTES~~78388JAJ5 ~~161133AC7~~239 $300000 ~~430 350000~~ prn ~~sole~~Sole ~~none~~None ~~350~~300 0 ~~CIENA~~SCHOOL ~~CORP~~SPECIALTY ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~171779101~~807863AL9 $492 ~~109~~700000 ~~22600~~prn ~~shs~~Sole ~~sole~~None ~~none~~700 ~~22600~~ 0 ~~CIENA~~SMITHFIELD ~~CORP~~FOODS ~~0.25%~~INC CONVERTIBLE ~~SENIOR~~SECURITY ~~NOTES~~832248AR9 ~~171779AB7~~259 $350000 ~~249 250000~~ prn ~~sole~~Sole ~~none~~None ~~250~~350 0 ~~COLUMBUS~~SONOSITE ~~MCKINNON~~INC ~~CORP~~CONVERTIBLE ~~COMMON~~SECURITY ~~STOCK~~83568GAA2 ~~199333105~~215 $300000 ~~1435~~prn ~~66000~~Sole ~~shs~~None ~~sole~~300 ~~none 66000~~ 0 ~~COMPUCREDIT~~SPARTAN ~~CORP~~STORES ~~3.625% CASH PAY~~ CONVERTIBLE NOSECURITY ~~20478NAB6~~846822AE4 $544 ~~275~~700000 ~~250000~~ prn ~~sole~~Sole ~~none~~None ~~250~~700 0 ~~COMTECH~~SPSS ~~TELECOMMUNICATIONS~~INC ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~205826209~~78462KAB8 $389 ~~338~~500000 ~~11550~~prn ~~shs~~Sole ~~sole~~None ~~none~~500 ~~11550~~ 0 ~~COMTECH~~SYBASE ~~TELECOM~~INC ~~2% SENIOR~~ CONVERTIBLE ~~NOTES~~SECURITY DU871130AB6 ~~205826AD2~~329 $300000 ~~485 450000~~ prn ~~sole~~Sole ~~none~~None ~~450~~300 0 ~~CONCEPTUS~~THORATEC ~~INC~~CORP ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~206016107~~885175AB5 $240 ~~1500~~250000 ~~110000~~prn ~~shs~~Sole ~~sole~~None ~~none~~250 ~~110000~~ 0 ~~CYTYC~~TYSON ~~CORP~~FOODS ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~232946103~~902494AP8 $406 ~~309~~500000 ~~12200~~prn ~~shs~~Sole ~~sole~~None ~~none~~500 ~~12200~~ 0 ~~CYTYC~~US ~~CORP~~BANCORP ~~2.25% CASH PAY~~ CONVERTIBLE ~~SEN~~SECURITY ~~232946AB9~~902973AQ9 $357 ~~547~~400000 ~~525000~~ prn ~~sole~~Sole ~~none~~None ~~525~~400 0 ~~DAKTRONICS~~VERISIGN INC ~~COMMON~~CONVERTIBLE ~~STOCK~~SECURITY ~~234264109~~92343EAD4 $317 ~~2021~~500000 ~~70000~~prn ~~shs~~Sole ~~sole~~None ~~none~~500 ~~70000~~ 0 ~~DOVER~~WESCO ~~DOWNS~~INTL ~~GAMING~~INC &CONVERTIBLE ~~ENTERTAIN~~SECURITY ~~COMMON~~95082PAE5 ~~STOCK~~629 ~~260095104~~800000 $prn ~~2121~~Sole ~~108000~~None ~~shs~~800 ~~sole none 108000~~ 0 15,628,780

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