13F-HR 1 a2194011z13f-hr.txt 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: June 30, 2009 ----------------------- 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: Loch Capital Management LLC ------------------------------------ Address: 30 Federal Street, Boston, MA 02110 ------------------------------------ Form 13F File Number: 28-11100 --------------------- 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 Matthews ------------------------------- Title: Chief Financial Officer ------------------------------- Phone: 617-289-7604 ------------------------------- Signature, Place, and Date of Signing: /s/ David Matthews Boston, MA August 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).) 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: 43 -------------------- Form 13F Information Table Value Total: 304,109 -------------------- (thousands) FORM 13F INFORMATION TABLE

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 ~~Value~~ Shares/ Prn Invstmt Other Voting Authority NAME OF ISSUER TITLE OF CLASS CUSIP Value (x1000) ~~Prn~~ amt Sh/Prn Put/Call Discretn Mangers Sole Shared None ~~ACTIVISION~~Airvana ~~BLIZZARD~~Inc. ~~INC~~ Common Stock ~~00507V109~~00950V101 ~~19,066~~241.81 138,~~822,800~~200. Sh Sole 138,~~822,800~~200. 0 0 ~~ADVANCED~~American ~~MICRO~~Tower ~~DEVICES~~Corp. ~~INC~~ Common Stock ~~007903107~~029912201 ~~168~~2,219.71 5570,~~200~~400. Sh Sole 5570,~~200~~400. 0 0 ~~AIRVANA~~Amkore ~~INC~~Technology, Inc. Common Stock ~~00950V101~~031652100 ~~135~~152.93 2332,400. Sh Sole 32,400. 0 0 Asml Holding N.V. ADRS N07059186 4,524.85 209,000. Sh Sole 23209,000. 0 0 ~~AT&T~~Atmel ~~INC~~Corp. Common Stock ~~00206R102~~049513104 34122.72 32,~~322~~900. 1Sh Sole 32,~~362~~900. 0 0 Atmi,~~000~~ Inc. Common Stock 00207R101 166.17 10,700. Sh Sole 110,~~362,000~~700. 0 0 ~~BROCADE~~Blue ~~COMMUNICATIONS~~Coat ~~SYS~~Systems ~~INC~~Inc. Common Stock ~~111621306~~09534T508 ~~447~~3,117.79 ~~129~~188,~~600~~500. Sh Sole ~~129~~188,~~600~~500. 0 0 ~~CAVIUM~~Brocade ~~NETWORKS~~Communications ~~INC~~Systems Inc. Common Stock ~~14965A101~~111621306 ~~255~~1,211.28 22154,~~100~~500. Sh Sole 22154,~~100~~500. 0 0 ~~CYPRESS~~Cablevision ~~SEMICONDUCTOR~~Systems ~~CORP~~Corporation Common Stock ~~232806109~~12686C109 ~~289~~7,892.11 42406,~~700~~600. Sh Sole 42406,~~700~~600. 0 0 ~~DIGITAL~~Centurytel ~~RIV~~Inc. ~~INC~~ Common Stock ~~25388B104~~156700106 ~~209~~1,396.85 745,~~000~~500. Sh Sole 745,~~000~~500. 0 0 ~~FORMFACTOR~~Citrix ~~INC~~Systems Inc. Common Stock ~~346375108~~177376100 ~~223~~6,773.44 12212,400. Sh Sole 12212,400. 0 0 ~~INTERNATIONAL~~Clearwire ~~BUSINESS~~Corporation ~~MACHS~~Common Stock 18538Q105 121.66 22,000. Sh Sole 22,000. 0 0 Commvault Systems, Inc. Common Stock ~~459200101~~204166102 192,~~407~~991.18 ~~200~~180,300. Sh Sole ~~200~~180,300. 0 0 ~~LAM~~Corning ~~RESEARCH~~Inc. ~~CORP~~ Common Stock ~~512807108~~219350105 112,~~890~~272.49 ~~522~~141,~~200~~500. Sh Sole ~~522~~141,~~200~~500. 0 0 ~~MARVELL~~Data ~~TECHNOLOGY~~Domain ~~GROUP~~Inc. ~~LTD~~ Common Stock ~~G5876H105~~23767P109 813,~~595~~108.33 ~~938~~392,~~302~~700. Sh Sole ~~938~~392,~~302~~700. 0 0 ~~MAXIM~~Dish ~~INTEGRATED~~Network ~~PRODS~~Corp. ~~INC~~ Common Stock ~~57772K101~~25470M109 275,~~338~~686.47 2350,~~069,504~~800. Sh Sole 2350,~~069,504~~800. 0 0 ~~MICROCHIP~~Ebay ~~TECHNOLOGY~~Inc. ~~INC~~ Common Stock ~~595017104~~278642103 86,~~008~~610.47 ~~377~~385,900. Sh Sole ~~377~~385,900. 0 0 ~~NOVELLUS~~First ~~SYS~~Solar, ~~INC~~Inc. Common Stock ~~670008101~~336433107 231,~~123~~622.00 110,~~390,457~~000. Sh Sole 110,~~390~~000. 0 0 Google Inc. Common Stock 38259P508 11,~~457~~172.14 26,500. Sh Sole 26,500. 0 0 ~~NVIDIA~~Intel ~~CORP~~Corporation Common Stock ~~67066G104~~458140100 164,~~399~~536.36 1274,~~663~~100. Sh Sole 274,~~200~~100. 0 0 Isilon Systems, Inc. Common Stock 46432L104 134.41 31,700. Sh Sole 131,~~663~~700. 0 0 Kla-Tencor Corp. Common Stock 482480100 9,~~200~~522.96 377,147. Sh Sole 377,147. 0 0 ONLeap ~~SEMICONDUCTOR~~Wireless ~~CORP~~International, Inc. Common Stock ~~682189105~~521863308 ~~117~~7,738.55 30235,000. Sh Sole 30235,000. 0 0 ~~SEAGATE~~Mattson ~~TECHNOLOGY~~Technology Inc Common Stock ~~G7945J104~~577223100 6120.60 102,~~445~~200. 1Sh Sole 102,~~072~~200. 0 0 Micrel,~~400~~ Inc. Common Stock 594793101 221.06 30,200. Sh Sole 130,~~072,400~~200. 0 0 ~~SONUS~~Microchip ~~NETWORKS~~Technology ~~INC~~Inc. Common Stock ~~835916107~~595017104 ~~204~~21,088.76 ~~130~~935,200. Sh Sole ~~130~~935,200. 0 0 ~~SPRINT~~Microsoft ~~NEXTEL~~Corp ~~CORP~~ Common Stock ~~852061100~~594918104 773,~~871~~917.57 23,~~204~~109,~~800~~700. Sh Sole 23,~~204~~109,~~800~~700. 0 0 ~~SYMANTEC~~Novell, ~~CORP~~Inc. Common Stock ~~871503108~~670006105 ~~2,552~~184.37 ~~170~~40,~~800~~700. Sh Sole ~~170~~40,~~800~~700. 0 0 ~~TAIWAN~~Nuance ~~SEMICONDUCTOR~~Communications, ~~MFG~~Inc. ~~LTD~~Common ~~ADRS~~Stock ~~STOCKS~~67020Y100 ~~874039100~~1,341.89 7110,~~937~~900. ~~886~~Sh Sole 110,~~806~~900. 0 0 Nvidia Corp. Common Stock 67066G104 17,425.73 1,543,466. Sh Sole ~~886~~1,~~806~~543,466. 0 0 ~~TAKE-TWO~~on ~~INTERACTIVE~~Semiconductor ~~SOFTWARE~~Corporation Common Stock ~~874054109~~682189105 ~~165~~205.80 1930,~~700~~000. Sh Sole 1930,~~700~~000. 0 0 ~~TELLABS~~Openwave ~~INC~~Systems Inc. Common Stock ~~879664100~~683718308 ~~300~~258.58 65115,~~500~~437. Sh Sole 65115,~~500~~437. 0 0 ~~TERADYNE~~Powershares ~~INC~~Qqq ETFS/INDICES 73935A104 8,979.38 245,800. Sh Sole 245,800. 0 0 Teradyne, Inc. Common Stock 880770102 ~~272~~3,467.99 62505,~~100~~538. Sh Sole 62505,~~100~~538. 0 0 ~~DIRECTV~~The ~~GROUP~~Directv ~~INC~~Group Inc. Common Stock 25459L106 2329,~~720~~165.21 1,~~040~~180,~~800~~300. Sh Sole 1,~~040~~180,~~800~~300. 0 0 ~~THQ~~Time ~~INC~~Warner Inc. Common Stock ~~872443403~~887317303 614,478.78 20177,~~100~~800. Sh Sole 20177,~~100~~800. 0 0 ~~VERIGY~~Veeco ~~LTD~~Instruments Inc Common Stock ~~Y93691106~~922417100 ~~540~~203.98 6517,~~500~~600. Sh Sole 6517,~~500~~600. 0 0 ~~VERIZON~~Verisign, ~~COMMUNICATION~~Inc. ~~INC~~ Common Stock ~~92343V104~~92343E102 162,~~390~~277.96 ~~542~~123,~~700~~000. Sh Sole ~~542~~123,~~700~~000. 0 0 ~~VIRAGE~~Virage ~~LOGIC~~Logic ~~CORP~~Corporation Common Stock 92763R104 ~~655~~876.96 194,880. Sh Sole 194,880. 0 0 ~~WESTERN~~Volterra ~~DIGITAL~~Semiconductor ~~CORP~~Corp. Common Stock ~~958102105~~928708106 ~~3,379~~153.74 ~~174~~11,700. Sh Sole ~~174~~11,700. 0 0 Xilinx, Inc. Common Stock 983919101 11,334.84 554,000. Sh Sole 554,000. 0 0 Xyratex Ltd. Common Stock G98268108 66.00 13,200. Sh Sole 13,200. 0 0 Yahoo! Inc. Common Stock 984332106 35,003.23 2,235,200. Sh Sole 2,235,200. 0 0

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