13F-HR 1 v343445_13fhr.txt 13F-HR UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F Report for the Calendar Year or Quarter Ended: March 31, 2013 Check here if Amendment [ ] Amendment Number: ____ Institutional Investment Manager Filing this Report: Name: Bluefin Investment Management LLC Address: 1235 Westlakes Drive, Suite 205 Berwyn, PA 19312 Form 13F File Number: 28-13813 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 the 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: Scott Burney Title: Member Phone: (610) 540-0019 Signature, Place, and Date of Signing: /s/ Scott Burney Berwyn, PA May 1, 2013 ---------------- ------------- ----------- [Signature] [City, State] [Date] Report Type: [X] 13F HOLDINGS REPORT [ ] 13F NOTICE [ ] 13F COMBINATION REPORT Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: None ---- Form 13F Information Table Entry Total: 31 ---- Form 13F Information Table Value Total: $ 157,748 (in thousands) ------------------------ List of Other Included Managers: None BLUEFIN INVESTMENT MANAGEMENT LLC 1235 WESTLAKES DR., SUITE 205 Bluefin Net AUM as of 3/31/2013: 193,282,453.00 BERWYN, PA 19312 3/31/2013

TITLE OF VALUE SHR/PRN SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME CLASS CUSIP (1000) AMOUNT PRN CALL DISCRETION MANAGERS SOLE SHARED OTHER -------------------------------------------------------------------------------------------------------------------------------- ~~AVAGO~~AEGERION ~~TECHNOLOGIES~~PHARMACEUTICALS, ~~LTD~~INC. COMMON ~~Y0486S104~~00767E102 116,~~496~~826 ~~363~~169,200 SH Sole ~~363~~169,200 ~~BJS~~AMER.SCIENCE ~~RESTAURANTS~~& ENG.INC. COMMON ~~09180C106~~029429107 42,~~849~~342 ~~147~~38,400 SH Sole ~~147~~38,400 CATAMARAN CORP COMMON 148887102 115,~~092~~611 ~~235~~105,~~500~~800 SH Sole ~~235~~105,~~500~~800 COGNIZANT TECHNOLOGY ~~SOLUTIO~~SOLUTIONS CORP CLASS A 192446102 86,~~533~~398 ~~115~~83,500 SH Sole ~~115~~83,500 DICKS SPORTING GOODS INC COMMON 253393102 8,424 178,100 SH Sole 178,100 DEXCOM, INC. COMMON 252131107 128,~~185~~286 ~~896~~495,600 SH Sole ~~896~~495,600 ~~DICKS~~ELLIE ~~SPORTING~~MAE, ~~GOODS~~ INC. COMMON ~~253393102~~28849P100 95,~~676~~248 ~~212~~218,~~700~~200 SH Sole ~~212~~218,~~700~~200 ~~EAGLE~~EXPRESS ~~MATERIALS~~SCRIPTS ~~INC~~HOLDINGS COMMON ~~26969P108~~30219G108 65,~~651~~618 ~~113~~97,~~700~~500 SH Sole ~~113~~97,~~700~~500 EXACTTARGET INC COMMON 30064K105 148,~~872~~131 ~~743~~349,~~600~~400 SH Sole ~~743~~349,~~600~~400 ~~EXPRESS~~EAGLE ~~SCRIPTS~~MATERIALS ~~HLDGS~~INC CO COMMON ~~30219G108~~26969P108 104,~~476~~038 ~~194~~60,~~000~~600 SH Sole ~~194~~60,~~000~~600 ~~FLUIDIGM~~SOURCEFIRE ~~CORP~~INC. ~~DEL~~ COMMON ~~34385P108~~83616T108 52,~~215~~103 ~~364~~35,~~400~~500 SH Sole ~~364~~35,~~400~~500 FORTINET, INC. COMMON 34959E109 138,~~762~~108 ~~654~~342,~~700~~400 SH Sole ~~654~~342,~~700~~400 ~~GNC~~GLOBUS ~~HLDGS~~MEDICAL INC. CLASS A ~~36191G107~~379577208 63,~~812~~517 ~~204~~239,~~700~~600 SH Sole ~~204~~239,~~700~~600 W.W. GRAINGER INCORPORATED COMMON 384802104 4,702 20,900 SH Sole 20,900 HEARTLAND EXPRESS INC COMMON 422347104 63,~~935~~094 ~~530~~231,~~600~~900 SH Sole ~~530~~231,~~600~~900 IMPAX LABORATORIES, INC. COMMON 45256B101 53,~~059~~046 ~~246~~197,~~900~~300 SH Sole ~~246~~197,~~900~~300 ~~LIONS~~MICHAEL ~~GATE~~KORS ~~ENTMNT~~HOLDINGS ~~CORP~~LIMITED COMMON ~~535919203~~G60754101 78,~~072~~581 ~~431~~151,~~200~~100 SH Sole ~~431~~151,~~200~~100 ~~MICHAEL~~LIONS ~~KORS~~GATE ~~HLDGS~~ENTERTAINMENT CORP COMMON ~~G60754101~~535919203 56,~~261~~064 ~~103~~255,100 SH Sole ~~103~~255,100 ~~OSI~~LOGMEIN ~~SYSTEMS~~ INC COMMON ~~671044105~~54142L109 ~~6,058~~188 949,~~600~~800 SH Sole 949,~~600~~800 ~~PEREGRINE~~MAGNACHIP SEMICONDUCTOR CORP COMMON ~~71366R703~~55933J203 43,~~241~~311 ~~277~~191,~~000~~300 SH Sole ~~277~~191,~~000~~300 ~~SEQUENOM~~OSI SYSTEMS INC COMMON ~~817337405~~671044105 95,~~505~~575 289,~~018,100~~500 SH Sole 289,~~018,100~~500 ~~SOURCEFIRE~~UNIVERSAL ~~INC.~~DISPLAY CORPORATION COMMON ~~83616T108~~91347P105 62,~~294~~552 ~~133~~86,~~300~~700 SH Sole ~~133~~86,~~300~~700 ~~SPECTRANETICS~~ECHOSTAR ~~CORP~~CORPORATION COMMON ~~84760C107~~278768106 62,~~429~~868 ~~435~~73,~~300~~600 SH Sole ~~435~~73,~~300~~600 ~~TEAM,~~SPECTRANETICS ~~INC.~~CORP COMMON ~~878155100~~84760C107 52,~~326~~815 ~~140~~151,~~000~~900 SH Sole ~~140~~151,~~000~~900 ~~TESLA~~SEQUENOM ~~MTRS,~~ INC. COMMON ~~88160R101~~817337405 310,~~458~~075 ~~102~~2,~~100~~427,800 SH Sole ~~102~~2,~~100~~427,800 TRIUMPH GROUP INC ~~NEW~~ COMMON 896818101 76,~~679~~421 ~~117~~81,~~600~~800 SH Sole ~~117~~81,~~600~~800 ULTA SALON COSMETICS & ~~FRAG~~FRAGRAN*CE IINC. COMMON 90384S303 108,~~229~~129 ~~104,~~100,000 SH Sole ~~104,~~100,000 UNITED RENTALS, INC. COMMON 911363109 73,~~260~~809 ~~159~~69,~~500~~300 SH Sole ~~159~~69,~~500~~300 ~~UNIVERSAL~~VITAMIN ~~DISPLAY CORPORATION COMMON 91347P105 9~~SHOPPE,~~236~~ ~~360,500 SH Sole 360,500 VALUECLICK~~ INC. COMMON ~~92046N102~~92849E101 62,~~869~~677 ~~353~~54,~~900~~800 SH Sole ~~353~~54,~~900~~800 ~~VOLCANO CORPORATION COMMON 928645100 9,461 400,700 SH Sole 400,700~~ WAGEWORKS INC COMMON 930427109 32,~~640~~470 ~~204~~98,~~500~~700 SH Sole ~~204~~98,~~500~~700 WASTE CONNECTIONS INC COMMON 941053100 106,~~688~~721 ~~316~~186,~~300~~800 SH Sole ~~316~~186,~~300 WESCO INTL INC. COMMON 95082P105 7,094 105,200 SH Sole 105,200~~800

Filing Compare · Bluefin Investment Management LLC