13F-HR 1 form13f_ms-research.june2010.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: June 30,2010 Check here if Amendment [ ]; Amendment Number: ______ This Amendment: [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Main Street Research LLC Address: 30 Liberty Ship Way, Suite 3330 Sausalito, CA 94965 Form 13F File Number: 028-14411 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: Charito A. Mittelman Title: Chief Compliance Officer Phone: 415-289-1010 Signature, Place, and Date of Signing: Charito A. Mittelman Sausalito, CA May 06, 2011 Report Type: [x] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. FORM 13F SUMMARy: Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 123 Form 13F Information Table Value Total: $166,887 List of Other Included Managers: NONE FORM 13F INFORMATION TABLE 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 DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- 1/100 Berkshire Hathaway Cl A COM 084990175 840 700 SH Sole 700 3M Company COM 88579Y101 1282 16232 SH Sole 16232 AFLAC Inc COM 001055102 261 6117 SH Sole 6117 Abbott Laboratories COM 002824100 693 14804 SH Sole 14804 Advent Software Inc COM 007974108 3609 76852 SH Sole 76852 Agilent Technologies COM 00846u101 256 9012 SH Sole 9012 Alberto Culver COM 013078100 205 7575 SH Sole 7575 Aluminum Corp China COM 022276109 1199 64231 SH Sole 64231 American Electric Power COM 025537101 1752 54249 SH Sole 54249 Apple Computer COM 037833100 5233 20804 SH Sole 20804 Astrazeneca Plc Adr F COM 046353108 254 5396 SH Sole 5396 At&t Inc COM 00206R102 1421 58733 SH Sole 58733 Auto Data Processing COM 053015103 435 10813 SH Sole 10813 BASF AG Spons Adr COM 055262505 610 11020 SH Sole 11020 Bank America Corp New COM 060505104 284 19729 SH Sole 19729 Bard C R Inc COM 067383109 2758 35572 SH Sole 35572 Berkshire Hathaway CL B COM 084670702 386 4849 SH Sole 4849 Best Buy Inc COM 086516101 3004 88727 SH Sole 88727 Biogen IDEC Inc COM 09062X103 288 6075 SH Sole 6075 Borg Warner Automotive COM 099724106 464 12415 SH Sole 12415 Brasil Telecom S.A. COM 10553M101 630 31371 SH Sole 31371 Brazil Foods SA Adr COM 10552T107 520 39192 SH Sole 39192 Briggs & Stratton Corp COM 109043109 1396 82038 SH Sole 82038 Bristol-Myers Squibb Co. Com. COM 110122108 2265 90823 SH Sole 90823 C V S Caremark Corp COM 126650100 444 15141 SH Sole 15141 Canon Inc COM 138006309 868 23270 SH Sole 23270 Cardinal Health COM 14149Y108 340 10120 SH Sole 10120 Celgene Corp COM 151020104 418 8234 SH Sole 8234 Charles Schwab Corp COM 808513105 1295 91356 SH Sole 91356 Chevron Corp COM 166764100 4409 64979 SH Sole 64979 China Mobile Hong Kong Ltd COM 16941M109 2057 41641 SH Sole 41641 Cisco Systems, Inc. COM 17275r102 1652 77533 SH Sole 77533 Citigroup Inc. COM 172967101 71 18954 SH Sole 18954 Clorox Co. Calif. COM 189054109 792 12739 SH Sole 12739 Cnooc Ltd COM 126132109 2858 16796 SH Sole 16796 Coca Cola Co. COM 191216100 667 13300 SH Sole 13300 Colgate-Palmolive Co COM 194162103 1514 19226 SH Sole 19226 Comcast Corp Cl A COM 20030N101 207 11896 SH Sole 11896 Computer Sciences Corp COM 205363104 256 5650 SH Sole 5650 Conoco Phillips COM 20825c104 252 5143 SH Sole 5143 Corning Inc COM 219350105 1626 100684 SH Sole 100684 Costco Corp COM 22160K105 1870 34105 SH Sole 34105 Danaher Corp Del COM 235851102 3364 90624 SH Sole 90624 Diageo Plc New ADR COM 25243q205 2210 35228 SH Sole 35228 Dominion Resources COM 25746u109 223 5745 SH Sole 5745 Emerson Electric Co COM 291011104 4076 93299 SH Sole 93299 Exxon Mobil Corp COM 30231G102 3467 60746 SH Sole 60746 Fastenal Company COM 311900104 365 7275 SH Sole 7275 FedEx Corp COM 31428X106 1138 16231 SH Sole 16231 Forest Laboratories COM 345838106 240 8765 SH Sole 8765 Franklin Resources Inc COM 354613101 245 2846 SH Sole 2846 Freeport McMoran Cp & Gold COM 35671d857 1202 20335 SH Sole 20335 General Electric Co. COM 369604103 427 29630 SH Sole 29630 General Mills, Inc. COM 370334104 819 23061 SH Sole 23061 Gilead Sciences COM 375558103 2533 73905 SH Sole 73905 GlaxoSmithKline PLC COM 37733w105 219 6449 SH Sole 6449 Gold Corp Inc COM 380956409 394 8996 SH Sole 8996 Hewlett Packard COM 428236103 1347 31112 SH Sole 31112 Honda Motor Ltd COM 438128308 539 18763 SH Sole 18763 Int'l Business Machines COM 459200101 2305 18668 SH Sole 18668 Intel Corp COM 458140100 913 46965 SH Sole 46965 Intuitive Surgical Inc COM 46120e602 202 641 SH Sole 641 J P Morgan Chase & Co. COM 46625h100 510 13925 SH Sole 13925 Johnson & Johnson COM 478160104 3511 59446 SH Sole 59446 Johnson Controls Inc COM 478366107 3421 127304 SH Sole 127304 Kellogg Co. COM 487836108 453 9009 SH Sole 9009 Kons Philips Elec NV New COM 500472303 1370 45898 SH Sole 45898 Korea Electric Power Corp. COM 500631106 1259 97784 SH Sole 97784 Kraft foods Inc COM 50075n104 382 13659 SH Sole 13659 Life Technologies Corp COM 53217v109 481 10184 SH Sole 10184 McDonald's Corp. COM 580135101 2538 38528 SH Sole 38528 Medco Health Solutions COM 58405U102 400 7258 SH Sole 7258 Merck & Co Inc COM 589331107 542 15506 SH Sole 15506 Microsoft Corp COM 594918104 215 9344 SH Sole 9344 Morgan Stanley COM 617446448 2752 118549 SH Sole 118549 Nestle SA ADR COM 641069406 265 5479 SH Sole 5479 Newmont Mining Corp. COM 651639106 797 12917 SH Sole 12917 Noble Energy Inc COM 655044105 938 15547 SH Sole 15547 Novartis A G COM 66987V109 225 4657 SH Sole 4657 Nucor Corp COM 670346105 3155 82417 SH Sole 82417 Oracle COM 68389X105 721 33582 SH Sole 33582 Pac Mercantile Bancorp COM 694552100 44 12650 SH Sole 12650 Pacific Gas & Electric COM 69331C108 1355 32961 SH Sole 32961 Parker-Hannifin Corp COM 701094104 1868 33683 SH Sole 33683 Pepsico COM 713448108 1885 30925 SH Sole 30925 Perrigo Company COM 714290103 268 4530 SH Sole 4530 PetroChina Co. Ltd. COM 71646e100 223 2029 SH Sole 2029 Petroleo Brasileiro COM 71654v408 748 21791 SH Sole 21791 Pfizer, Inc. COM 717081103 267 18722 SH Sole 18722 Philip Morris International COM 718172109 402 8768 SH Sole 8768 Procter & Gamble Co. COM 742718109 19481 324791 SH Sole 324791 Qualcomm Inc COM 747525103 715 21783 SH Sole 21783 S A P Aktiengesell ADR COM 803054204 1095 24725 SH Sole 24725 Salesforce.com COM 79466l302 1608 18735 SH Sole 18735 Sanofi Aventis Adr COM 80105n105 252 8376 SH Sole 8376 Siemens AG Adr COM 826197501 952 10632 SH Sole 10632 Sirius XM Radio COM 82967N108 49 51130 SH Sole 51130 Smith & Nephew Adr COM 83175M205 2638 56118 SH Sole 56118 Smucker JM Company COM 832696405 243 4037 SH Sole 4037 Snap-on Inc. COM 833034101 797 19482 SH Sole 19482 Stanley Black & Decker COM 854502101 1146 22679 SH Sole 22679 Sysco Corp. COM 871829107 243 8498 SH Sole 8498 Target Corp COM 87612E106 2829 57527 SH Sole 57527 Tata Motors Ltd COM 876568502 1857 108000 SH Sole 108000 Teva Pharm Inds Ltd COM 881624209 234 4508 SH Sole 4508 The Southern Company COM 842587107 227 6832 SH Sole 6832 Total Fina Elf COM 89151e109 419 9393 SH Sole 9393 Unilever PLC Amer Shs F COM 904767704 616 23030 SH Sole 23030 United Technologies COM 913017109 1165 17942 SH Sole 17942 VMware Inc COM 928563402 4229 67566 SH Sole 67566 Verizon Communications COM 92343v104 476 17000 SH Sole 17000 Visa Inc COM 92826c839 1317 18608 SH Sole 18608 Wal-Mart Stores Inc. COM 931142103 217 4511 SH Sole 4511 Watson Pharmaceuticals COM 942683103 5009 123472 SH Sole 123472 Wells Fargo COM 949746101 512 20014 SH Sole 20014 Wesco Financial Corp COM 950817106 583 1805 SH Sole 1805 Westamerica Bancorp COM 957090103 2425 46169 SH Sole 46169 Whole Foods Market Inc COM 966837106 3105 86206 SH Sole 86206 Yum Brands Inc COM 988498101 2643 67712 SH Sole 67712 Zimmer Holdings Inc COM 98956P102 210 3878 SH Sole 3878 IShares Trust MSCI EAFE Index ETF 464287465 216 4634 SH Sole 4634 PowerShares QQQ Trust ETF 73935a104 209 4902 SH Sole 4902 Vanguard Total Stock Market VI ETF 922908769 302 5749 SH Sole 5749 Total $166,887