13F-HR 1 v320230_13fhr.txt 13F-HR UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F Report for the Calendar Year or Quarter Ended: June 30, 2012 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 August 7, 2012 ---------------- ------------- ---------------- [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: 28 ---- Form 13F Information Table Value Total: $ 261,047 (in thousands) ------------------------ List of Other Included Managers: None Bluefin Investment Management LLC 6/30/2012

Title of Value Shr/PRN SH/ Put/ Investment Other Voting Auth Name of Issuer Class CUSIP (x1000) Amount PRN Call Discretion Managers Sole Shared Other ----------------------------- -------- --------- ------- --------- --- ---- ---------- -------- ---- ------ ----- ~~ANCESTRY~~ABIOMED ~~COM~~ INC. ~~Common~~COMMON ~~032803108~~003654100 75,~~284~~185 ~~320~~227,~~300~~200 SH Sole ~~320~~227,~~300~~200 ~~AVAGO~~ANCESTRY.COM ~~TECHNOLOGIES~~INC. ~~LTD~~COMMON ~~Common~~032803108 ~~Y0486S104 18~~8,~~904~~350 ~~485~~303,~~100~~300 SH Sole ~~485~~303,~~100~~300 ~~BODY~~AVAGO ~~CENT~~TECHNOLOGIES ~~CORP~~LTD ~~Common~~COMMON ~~09689U102~~Y0486S104 1116,~~802~~209 ~~406~~451,~~700~~500 SH Sole ~~406~~451,~~700~~500 ~~CINEMARK HOLDINGS INC Common 17243V102 10,207 465,000 SH Sole 465,000~~ COGNIZANT TECHNOLOGY ClSOLUTIO CL A 192446102 129,~~774~~366 ~~166~~156,~~000~~100 SH Sole ~~166~~156,~~000~~100 ~~SOLUTIONS CORP~~ CORRECTIONS CORP ~~AMER~~AMERICA ~~Common~~COMMON NEW 22025Y407 176,~~833~~426 ~~653~~218,~~000~~200 SH Sole ~~653~~218,~~000~~200 ~~DSW INC Cl A 23334L102 12~~DEXCOM,~~126~~ ~~221,400 SH Sole 221,400 DEXCOM~~ INC. ~~Common~~COMMON 252131107 1316,~~274~~731 1,~~272~~291,~~700~~000 SH Sole 1,~~272~~291,~~700~~000 ~~EXPRESS~~DSW ~~SCRIPTS~~ INC. ~~Common~~CL ~~302182100~~A 23334L102 12,~~196~~980 ~~225~~238,~~100~~600 SH Sole ~~225~~238,~~100~~600 ~~FINISTAR~~EXACTTARGET ~~CORP~~INC ~~Common~~COMMON ~~31787A507~~30064K105 5,~~833~~461 ~~289~~249,~~500~~800 SH Sole ~~289~~249,~~500~~800 ~~FORTINET~~FINISAR ~~INC~~CORP ~~Common~~COMMON ~~34959E109~~NEW ~~9,241~~31787A507 ~~334~~299 20,~~200~~000 SH Sole ~~334~~20,~~200~~000 ~~GEN-PROBE~~FORTINET, INC. ~~Common~~COMMON ~~36866T103~~34959E109 1514,~~102~~875 ~~227~~640,~~400~~600 SH Sole ~~227~~640,~~400~~600 HEARTLAND EXPRESS INC ~~Common~~COMMON 422347104 9,~~175~~728 ~~634~~679,~~500~~800 SH Sole ~~634~~679,~~500~~800 KANSAS CITY SOUTHERN ~~Common~~COMMON NEW 485170302 45,~~588~~516 6479,~~000~~300 SH Sole 6479,~~000~~300 LIONS GATE ENTMNT CORP ~~Common~~COMMON 535919203 911,~~392~~135 ~~674~~755,~~700~~400 SH Sole ~~674~~755,~~700~~400 ~~LUMINEX~~LOGMEIN ~~CORP~~INC ~~DEL~~COMMON ~~Common~~54142L109 ~~55027E102 3~~15,~~792~~822 ~~162~~518,400 SH Sole ~~162~~518,400 ~~LOGMEIN~~LUMINEX ~~INC~~CORP ~~Common~~DEL ~~54142L109~~COMMON 1655027E102 5,~~611~~562 ~~471~~227,~~500~~100 SH Sole ~~471~~227,~~500~~100 ~~MASIMO~~MCGRATH ~~CORP~~RENTCORP ~~Common~~COMMON ~~574795100~~580589109 75,~~591~~867 ~~324~~221,~~700~~400 SH Sole ~~324~~221,~~700~~400 ~~MCGRATHE~~NUVASIVE, ~~RENTCORP~~INC. ~~Common~~COMMON ~~580589109~~670704105 513,~~860~~603 ~~182~~536,~~500~~400 SH Sole ~~182~~536,~~500~~400 ~~SABA~~OSI ~~SOFTWARE~~SYSTEMS INC ~~Common~~COMMON ~~784932600~~671044105 4,~~173~~928 ~~425~~77,~~400~~800 SH Sole ~~425~~77,~~400~~800 ~~SS&C~~QUEST ~~TECHNOLOGIES~~SOFTWARE ~~HLDGS~~ INC ~~Common~~COMMON ~~78467J100~~74834T103 91,~~444~~685 ~~404~~60,~~800~~600 SH Sole ~~404~~60,~~800~~600 ~~SXC~~SEQUENOM ~~HEALTH~~INC ~~SOLUTIONS~~COMMON ~~CORP~~NEW ~~Common~~817337405 ~~78505P100 17~~6,~~443~~428 ~~232~~1,~~700~~583,200 SH Sole ~~232~~1,~~700~~583,200 ~~THORATEC~~SUPER ~~CORP~~MICRO ~~Common~~COMPUTER ~~885175307~~INC. 9COMMON 86800U104 6,~~071~~504 ~~269~~410,100 SH Sole ~~269~~410,100 ~~TALEO~~SXC HEALTH SOLUTIONS CORP CLCOMMON A78505P100 ~~87424N104~~17,431 13175,~~678~~700 ~~297~~SH Sole 175,700 THORATEC CORPORATION COMMON 885175307 9,530 283,800 SH Sole ~~297~~283,800 ULTA SALON COSMETICS & FRAG ~~Common~~I COMMON 90384S303 1312,~~070~~868 ~~140~~137,~~700~~800 SH Sole ~~140~~137,~~700~~800 I VALUECLICK INC ~~Common~~COMMON 92046N102 129,~~673~~803 ~~642~~598,~~000~~100 SH Sole ~~642~~598,~~000~~100 VOLCANO CORPORATION ~~Common~~COMMON 928645100 1310,~~288~~664 ~~468~~372,200 SH Sole ~~468~~372,200 ~~WESCO~~WASTE ~~INTL~~CONNECTIONS INC ~~Common~~COMMON ~~95082P105~~941053100 510,~~950~~221 91341,~~100~~600 SH Sole 91341,~~100~~600 ~~WASTE~~WESCO ~~CONNECTIONS~~INTL INC. ~~Common~~COMMON ~~941053100~~95082P105 117,~~011~~873 ~~338~~136,~~500~~800 SH Sole ~~338~~136,~~500~~800

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