13F-HR 1 form13f_ms-research.June2011.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, 2011 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 July 25, 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: 147 Form 13F Information Table Value Total: $248,183 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 ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- Berkshire Hathaway Cl A COM 084670108 813 7 SH Sole 7 3M Company COM 88579Y101 2041 21522 SH Sole 21522 Abbott Laboratories COM 002824100 1323 25149 SH Sole 25149 Ace Limited COM H0023R105 206 3125 SH Sole 3125 Advent Software Inc COM 007974108 3144 111597 SH Sole 111597 Agilent Technologies COM 00846u101 476 9312 SH Sole 9312 Air Prod & Chemicals Inc COM 009158106 257 2691 SH Sole 2691 Altria Group Inc COM 02209S103 293 11083 SH Sole 11083 Ambev Food & Beverage COM 20441w203 528 15655 SH Sole 15655 American Electric Power COM 025537101 5821 154495 SH Sole 154495 American Express COM 025816109 1819 35192 SH Sole 35192 American Movil Adr COM 02364w105 283 5260 SH Sole 5260 Anadarko Petroleum Corp COM 032511107 223 2907 SH Sole 2907 Aon Corp COM 037389103 202 3930 SH Sole 3930 Apple Computer COM 037833100 4961 14780 SH Sole 14780 Astrazeneca Plc Adr F COM 046353108 266 5307 SH Sole 5307 At&t Inc COM 00206R102 2235 71149 SH Sole 71149 Auto Data Processing COM 053015103 598 11345 SH Sole 11345 Bank America Corp New COM 060505104 286 26109 SH Sole 26109 Bard C R Inc COM 067383109 4057 36933 SH Sole 36933 Berkshire Hathaway CL B COM 084670702 412 5321 SH Sole 5321 Berry Petroleum Co COM 085789105 225 4227 SH Sole 4227 Biogen IDEC Inc COM 09062X103 671 6275 SH Sole 6275 Borg Warner Automotive COM 099724106 4291 53115 SH Sole 53115 Brasil Telecom S.A. COM 10553M101 901 31421 SH Sole 31421 Brazil Foods SA Adr COM 10552T107 2117 122138 SH Sole 122138 Briggs & Stratton Corp COM 109043109 1602 80678 SH Sole 80678 Bristol-Myers Squibb Co. Com. COM 110122108 3662 126447 SH Sole 126447 C V S Caremark Corp COM 126650100 547 14549 SH Sole 14549 CPFL Energia SA COM 126153105 328 3780 SH Sole 3780 CSX Corp COM 126408103 493 18807 SH Sole 18807 Cardinal Health COM 14149Y108 433 9529 SH Sole 9529 Caterpillar Inc COM 149123101 1007 9458 SH Sole 9458 Celgene Corp COM 151020104 497 8234 SH Sole 8234 Charles Schwab Corp COM 808513105 1433 87099 SH Sole 87099 Chevron Corp COM 166764100 7647 74354 SH Sole 74354 China Petroleum & Chemical Cor COM 16941R108 291 2865 SH Sole 2865 China Telecom Corp Ltd COM 169426103 3017 46090 SH Sole 46090 Chubb Corp COM 171232101 402 6415 SH Sole 6415 Cisco Systems, Inc. COM 17275r102 231 14812 SH Sole 14812 Clorox Co. Calif. COM 189054109 930 13789 SH Sole 13789 Cnooc Ltd COM 126132109 2213 9379 SH Sole 9379 Coca Cola Co. COM 191216100 910 13518 SH Sole 13518 Colgate-Palmolive Co COM 194162103 2236 25576 SH Sole 25576 Comcast Corp Cl A COM 20030N101 305 12039 SH Sole 12039 Conoco Phillips COM 20825c104 511 6793 SH Sole 6793 Corning Inc COM 219350105 2458 135422 SH Sole 135422 Costco Corp COM 22160K105 2807 34547 SH Sole 34547 Danaher Corp Del COM 235851102 5202 98163 SH Sole 98163 Diageo Plc New ADR COM 25243q205 3510 42876 SH Sole 42876 Dominion Resources COM 25746u109 516 10685 SH Sole 10685 DuPont COM 263534109 349 6461 SH Sole 6461 Emerson Electric Co COM 291011104 5626 100013 SH Sole 100013 Exxon Mobil Corp COM 30231G102 4714 57921 SH Sole 57921 Fair Issac Inc COM 303250104 220 7275 SH Sole 7275 Fastenal Company COM 311900104 1061 29485 SH Sole 29485 FedEx Corp COM 31428X106 2153 22695 SH Sole 22695 Forest Laboratories COM 345838106 686 17435 SH Sole 17435 Franklin Resources Inc COM 354613101 374 2846 SH Sole 2846 Freeport McMoran Cp & Gold COM 35671d857 2689 50838 SH Sole 50838 Gartner, Inc. COM 366651107 441 10950 SH Sole 10950 General Electric Co. COM 369604103 800 42417 SH Sole 42417 General Mills, Inc. COM 370334104 928 24940 SH Sole 24940 Gilead Sciences COM 375558103 3024 73023 SH Sole 73023 GlaxoSmithKline PLC COM 37733w105 259 6027 SH Sole 6027 Gold Corp Inc COM 380956409 894 18526 SH Sole 18526 Heinz H J Co COM 423074103 667 12525 SH Sole 12525 Hewlett Packard COM 428236103 1098 30154 SH Sole 30154 Honeywell COM 438516106 259 4346 SH Sole 4346 IAC Interactive Corp COM 44919p508 230 6017 SH Sole 6017 ITT Corporation COM 450911102 209 3550 SH Sole 3550 Illumina Inc COM 452327109 4309 57335 SH Sole 57335 Int'l Business Machines COM 459200101 4804 28003 SH Sole 28003 Intuitive Surgical Inc COM 46120e602 372 1001 SH Sole 1001 J P Morgan Chase & Co. COM 46625h100 722 17638 SH Sole 17638 Johnson & Johnson COM 478160104 629 9462 SH Sole 9462 Johnson Controls Inc COM 478366107 2966 71190 SH Sole 71190 Juniper Networks COM 48203R104 2817 89435 SH Sole 89435 Kellogg Co. COM 487836108 487 8809 SH Sole 8809 Kraft foods Inc COM 50075n104 521 14798 SH Sole 14798 LinkedIn COM 53578a108 2250 24980 SH Sole 24980 Massmutual Corporate Investors COM 576292106 1404 86825 SH Sole 86825 McDonald's Corp. COM 580135101 3962 46985 SH Sole 46985 Medco Health Solutions COM 58405U102 414 7333 SH Sole 7333 Merck & Co Inc COM 58933y105 623 17654 SH Sole 17654 Microsoft Corp COM 594918104 335 12887 SH Sole 12887 Morgan Stanley COM 617446448 1441 62621 SH Sole 62621 Nestle SA ADR COM 641069406 337 5438 SH Sole 5438 Newmont Mining Corp. COM 651639106 807 14952 SH Sole 14952 Noble Energy Inc COM 655044105 2195 24492 SH Sole 24492 Norfolk Southern Corp. COM 655844108 232 3100 SH Sole 3100 Novartis A G COM 66987V109 382 6258 SH Sole 6258 Nucor Corp COM 670346105 1771 42964 SH Sole 42964 Occidental Petroleum COM 674599105 218 2099 SH Sole 2099 Oracle COM 68389X105 1396 42427 SH Sole 42427 Pac Mercantile Bancorp COM 694552100 54 12650 SH Sole 12650 Parker-Hannifin Corp COM 701094104 3508 39090 SH Sole 39090 Pepsico COM 713448108 2171 30824 SH Sole 30824 Perrigo Company COM 714290103 1552 17665 SH Sole 17665 PetroChina Co. Ltd. COM 71646e100 519 3556 SH Sole 3556 Petroleo Brasileiro COM 71654v408 3682 108751 SH Sole 108751 Pfizer, Inc. COM 717081103 556 26982 SH Sole 26982 Philip Morris International COM 718172109 668 10009 SH Sole 10009 Procter & Gamble Co. COM 742718109 20265 318786 SH Sole 318786 Qualcomm Inc COM 747525103 1026 18068 SH Sole 18068 Ross Stores Inc COM 778296103 808 10080 SH Sole 10080 S A P Aktiengesell ADR COM 803054204 1896 31261 SH Sole 31261 Salesforce.com COM 79466l302 3077 20657 SH Sole 20657 Sanofi Aventis Adr COM 80105n105 318 7906 SH Sole 7906 Sasol Limited Spon Adr COM 803866300 4114 77790 SH Sole 77790 Sempra Energy COM 816851109 488 9225 SH Sole 9225 Siemens AG Adr COM 826197501 2851 20730 SH Sole 20730 Sirius XM Radio COM 82967N108 117 53630 SH Sole 53630 Smith & Nephew Adr COM 83175M205 3068 56649 SH Sole 56649 Smucker JM Company COM 832696405 306 3997 SH Sole 3997 Snap-on Inc. COM 833034101 1858 29742 SH Sole 29742 St. Jude Medical COM 790849103 222 4660 SH Sole 4660 Stanley Black & Decker COM 854502101 3023 41959 SH Sole 41959 Sysco Corp. COM 871829107 248 7948 SH Sole 7948 Target Corp COM 87612E106 2995 63848 SH Sole 63848 Teradata Corp COM 88076W103 291 4836 SH Sole 4836 Teva Pharm Inds Ltd COM 881624209 272 5644 SH Sole 5644 The Southern Company COM 842587107 300 7432 SH Sole 7432 Total Fina Elf COM 89151e109 1219 21076 SH Sole 21076 Unilever PLC Amer Shs F COM 904767704 1086 33525 SH Sole 33525 Union Pacific Corp COM 907818108 334 3204 SH Sole 3204 United Technologies COM 913017109 2591 29271 SH Sole 29271 VMware Inc COM 928563402 3726 37174 SH Sole 37174 Verizon Communications COM 92343v104 723 19421 SH Sole 19421 Vodafone Group COM 92857w209 215 8030 SH Sole 8030 Walgreen Co. COM 931422109 302 7104 SH Sole 7104 Walt Disney Holding Co. COM 254687106 219 5613 SH Sole 5613 Watson Pharmaceuticals COM 942683103 9062 131849 SH Sole 131849 Wells Fargo COM 949746101 397 14140 SH Sole 14140 Westamerica Bancorp COM 957090103 2554 51848 SH Sole 51848 Whole Foods Market Inc COM 966837106 3611 56906 SH Sole 56906 Yanzhou Coal Mining Co. Adr COM 984846105 4205 109243 SH Sole 109243 Yum Brands Inc COM 988498101 4281 77504 SH Sole 77504 Zimmer Holdings Inc COM 98956P102 253 4011 SH Sole 4011 Health Care Reit REIT 42217K106 683 13035 SH Sole 13035 Buckeye Partners LP MLP 118230101 1822 28225 SH Sole 28225 IShares Trust MSCI EAFE Index ETF 464287465 270 4483 SH Sole 4483 Kinder Morgan Energy LP MLP 494550106 3532 48650 SH Sole 48650 Magellan Midstream Partners MLP 559080106 701 11729 SH Sole 11729 PowerShares QQQ Trust ETF 73935a104 279 4898 SH Sole 4898 ProShares UltraShort 20+ Year ETF 74347R297 1760 50993 SH Sole 50993 Vanguard Total Stock Market VI ETF 922908769 393 5749 SH Sole 5749 Total $248,183