Main Street Research Llc Portfolio Stock Holdings
Main Street Research Llc disclosed 140 stock positions valued at approximately $2.1 billion in its latest SEC 13F filing. The largest holdings include NVIDIA CORPORATION, MICRON TECHNOLOGY INC, and APPLE INC. The filing reflects positions held as of June 30, 2026 and was filed on July 29, 2026.
- Report Period
- June 30, 2026
- No. of Stocks
- 140
- Portfolio Value
- $2.1B
Holdings by Sector
Main Street Research Llc Portfolio Holdings in Q2 2026
139 holdings in the latest reporting period.
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| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| NVIDIA CORPORATION | NVDA | Technology | 5.95% | 630,053 | +9,277 | +1.49% | $126,067,297 |
| MICRON TECHNOLOGY INC | MU | Technology | 5.92% | 108,636 | -473 | -0.43% | $125,397,358 |
| APPLE INC | AAPL | Technology | 5.55% | 406,129 | +2,551 | +0.63% | $117,517,404 |
| ALPHABET INC | GOOGL | Communication Services | 5.35% | 316,947 | +5,161 | +1.66% | $113,267,393 |
| TAIWAN SEMICONDUCTOR MANUFAC | TSM | Technology | 5.15% | 228,429 | +5,270 | +2.36% | $109,090,838 |
| CORNING INC | GLW | Technology | 4.75% | 394,058 | +6,340 | +1.64% | $100,654,235 |
| SPDR SERIES TRUST | XBI | Other | 4.31% | 576,754 | +9,275 | +1.63% | $91,271,321 |
| ISHARES TR | ISCF | Other | 4.14% | 2,027,356 | +68,729 | +3.51% | $87,764,241 |
| ASML HLDG NV | ASML | Other | 3.98% | 42,396 | +709 | +1.70% | $84,344,300 |
| BROADCOM INC | AVGO | Technology | 3.81% | 213,841 | +1,439 | +0.68% | $80,778,363 |
| JPMORGAN CHASE & CO | JPM | Financial Services | 3.50% | 226,299 | +2,537 | +1.13% | $74,074,475 |
| ISHARES INC | EWY | Other | 3.44% | 360,865 | -1,009 | -0.28% | $72,858,644 |
| CATERPILLAR INC | CAT | Industrials | 3.10% | 61,759 | +649 | +1.06% | $65,767,159 |
| AMAZON COM INC | AMZN | Consumer Cyclical | 3.09% | 274,738 | +5,545 | +2.06% | $65,480,981 |
| GE VERNOVA INC | GEV | Utilities | 2.82% | 50,802 | +110 | +0.22% | $59,685,399 |
| AMPHENOL CORP | APH | Technology | 2.57% | 308,716 | +7,673 | +2.55% | $54,432,855 |
| JOHNSON & JOHNSON | JNJ | Healthcare | 2.26% | 188,640 | +1,758 | +0.94% | $47,908,843 |
| ROYAL BK CDA | RY | Financial Services | 2.22% | 227,136 | +4,568 | +2.05% | $47,010,338 |
| COSTCO WHOLESALE CORPORATION | COST | Consumer Defensive | 2.10% | 47,497 | +1,358 | +2.94% | $44,432,468 |
| BHP BILLITON LIMITED | BHP | Basic Materials | 2.08% | 528,051 | +8,839 | +1.70% | $43,991,929 |
| BARCLAYS PLC | BCS | Financial Services | 2.06% | 1,621,490 | +770,519 | +90.55% | $43,553,224 |
| META PLATFORMS INC | META | Communication Services | 1.92% | 72,187 | +1,225 | +1.73% | $40,662,490 |
| KEYSIGHT TECHNOLOGIES INC | KEYS | Technology | 1.90% | 115,108 | +2,171 | +1.92% | $40,295,858 |
| CAMECO CORP | CCJ | Energy | 1.88% | 391,529 | +2,452 | +0.63% | $39,881,144 |
| WALMART INC | WMT | Consumer Defensive | 1.86% | 348,650 | +3,781 | +1.10% | $39,488,132 |
| ROSS STORES INC | ROST | Consumer Cyclical | 1.51% | 150,755 | +150,755 | +100.00% | $32,088,202 |
| TECHNIPFMC PLC | G87110105 | Other | 1.29% | 413,657 | +413,657 | +100.00% | $27,425,459 |
| MICROSOFT CORP | MSFT | Technology | 1.22% | 69,182 | +1,640 | +2.43% | $25,806,278 |
| PROCTER & GAMBLE CO | PG | Consumer Defensive | 1.05% | 151,073 | -554 | -0.37% | $22,153,275 |
| MCKESSON CORP | MCK | Healthcare | 1.02% | 28,475 | -39,299 | -57.99% | $21,516,028 |
| FAIR ISAAC CORP | FICO | Technology | 0.54% | 9,580 | +1,116 | +13.19% | $11,445,992 |
| ALPHABET INC | GOOG | Communication Services | 0.38% | 22,707 | -730 | -3.11% | $8,022,970 |
| PALO ALTO NETWORKS INC | PANW | Technology | 0.38% | 23,343 | -10,681 | -31.39% | $7,960,430 |
| BERKSHIRE HATHAWAY INC DEL | BRK-B | Financial Services | 0.28% | 11,980 | +2 | +0.02% | $5,994,672 |
| ARISTA NETWORKS INC | ANET | Other | 0.28% | 34,937 | -44 | -0.13% | $5,935,098 |
| TESLA INC | TSLA | Consumer Cyclical | 0.26% | 12,943 | +606 | +4.91% | $5,444,026 |
| SCHWAB CHARLES CORP | SCHW | Financial Services | 0.20% | 45,887 | -473 | -1.02% | $4,234,030 |
| WELLS FARGO & CO | WFC | Financial Services | 0.19% | 48,542 | +1,660 | +3.54% | $4,011,511 |
| BERKSHIRE HATHAWAY INC DEL | BRK-A | Financial Services | 0.18% | 5 | - | - | $3,744,250 |
| ISHARES TR | IXUS | Other | 0.18% | 39,073 | +490 | +1.27% | $3,729,127 |
| ELI LILLY & CO | LLY | Healthcare | 0.16% | 2,746 | -162 | -5.57% | $3,293,389 |
| VISA INC | V | Financial Services | 0.15% | 9,369 | -877 | -8.56% | $3,214,454 |
| EXXON MOBIL CORP | XOM | Energy | 0.14% | 22,437 | -1,487 | -6.22% | $3,067,587 |
| AUTODESK INC | ADSK | Technology | 0.13% | 14,240 | -163 | -1.13% | $2,768,541 |
| ISHARES INC | URTH | Other | 0.13% | 13,511 | -1,231 | -8.35% | $2,737,869 |
| CHEVRON CORPORATION | CVX | Energy | 0.13% | 16,080 | -771 | -4.58% | $2,665,488 |
| STATE STR SPDR S&P 500 ETF T | SPY | Other | 0.12% | 3,485 | +222 | +6.80% | $2,602,493 |
| ABBVIE INC | ABBV | Healthcare | 0.12% | 9,721 | -537 | -5.23% | $2,446,086 |
| MCDONALDS CORP | MCD | Consumer Cyclical | 0.11% | 8,913 | -6,570 | -42.43% | $2,409,244 |
| ADVANCED MICRO DEVICES INC | AMD | Technology | 0.09% | 3,308 | +163 | +5.18% | $1,921,650 |
| ISHARES TR | IVV | Other | 0.06% | 1,810 | -744 | -29.13% | $1,355,502 |
| PALANTIR TECHNOLOGIES INC | PLTR | Technology | 0.06% | 11,444 | -156,203 | -93.17% | $1,335,171 |
| 3M CO | MMM | Industrials | 0.06% | 7,610 | -260 | -3.30% | $1,232,135 |
| ISHARES TR | ISTB | Other | 0.06% | 24,592 | +534 | +2.22% | $1,186,564 |
| CISCO SYS INC | CSCO | Technology | 0.05% | 9,682 | -375 | -3.73% | $1,137,194 |
| INVESCO QQQ TR | QQQ | Other | 0.05% | 1,531 | -238 | -13.45% | $1,127,086 |
| RTX CORPORATION | RTX | Industrials | 0.05% | 5,752 | -314 | -5.18% | $1,091,366 |
| MERCK & CO INC | MRK | Healthcare | 0.05% | 8,298 | -1,223 | -12.85% | $1,066,293 |
| TEXAS INSTRS INC | TXN | Technology | 0.05% | 3,560 | +33 | +0.94% | $1,061,154 |
| SCHWAB STRATEGIC TR | SCHI | Other | 0.05% | 46,488 | +2,162 | +4.88% | $1,052,488 |
| INTEL CORP | INTC | Technology | 0.05% | 7,350 | +1,431 | +24.18% | $1,026,281 |
| ISHARES TR | IGLB | Other | 0.05% | 19,721 | +970 | +5.17% | $986,839 |
| PULTE GROUP INC | PHM | Consumer Cyclical | 0.05% | 7,145 | -237 | -3.21% | $980,365 |
| ON SEMICONDUCTOR CORP | ON | Technology | 0.05% | 10,363 | +13 | +0.13% | $979,718 |
| SALESFORCE INC | CRM | Technology | 0.04% | 5,802 | -1,122 | -16.20% | $908,941 |
| CIRRUS LOGIC INC | CRUS | Technology | 0.04% | 5,936 | +202 | +3.52% | $881,674 |
| LAM RESEARCH CORP | LRCX | Other | 0.04% | 2,016 | +28 | +1.41% | $873,695 |
| CLOROX CO DEL | CLX | Consumer Defensive | 0.04% | 8,934 | -603 | -6.32% | $852,661 |
| GOLDMAN SACHS GROUP INC | GS | Financial Services | 0.04% | 811 | -63 | -7.21% | $820,221 |
| CITIGROUP INC | C | Financial Services | 0.04% | 5,803 | +277 | +5.01% | $812,188 |
| STATE STR SPDR DOW JONES IND | DIA | Other | 0.04% | 1,541 | +39 | +2.60% | $804,919 |
| CURTISS WRIGHT CORP | CW | Industrials | 0.04% | 1,038 | +26 | +2.57% | $786,555 |
| UBER TECHNOLOGIES INC | UBER | Technology | 0.04% | 10,806 | -685 | -5.96% | $779,761 |
| COLGATE PALMOLIVE CO | CL | Consumer Defensive | 0.04% | 8,390 | +906 | +12.11% | $769,195 |
| VANGUARD INDEX FDS | VOO | Other | 0.04% | 1,104 | -228 | -17.12% | $758,581 |
| HSBC HLDGS PLC | HSBC | Financial Services | 0.03% | 7,772 | +39 | +0.50% | $739,039 |
| BANK OF AMER CORP | BAC | Financial Services | 0.03% | 11,869 | -74 | -0.62% | $676,296 |
| D R HORTON INC | DHI | Consumer Cyclical | 0.03% | 4,075 | +267 | +7.01% | $663,736 |
| UNION PAC CORP | UNP | Industrials | 0.03% | 2,413 | -1,716 | -41.56% | $656,336 |
| MITSUBISHI UFJ FINANCIAL GRO | MUFG | Financial Services | 0.03% | 32,721 | +2,273 | +7.47% | $650,821 |
| FORTINET INC | FTNT | Technology | 0.03% | 4,214 | +139 | +3.41% | $647,355 |
| BLACKSTONE INC | BX | Financial Services | 0.03% | 5,036 | -281 | -5.28% | $592,586 |
| DELTA AIR LINES INC | DAL | Industrials | 0.03% | 6,263 | +1,172 | +23.02% | $586,593 |
| CROWDSTRIKE HLDGS INC | CRWD | Technology | 0.03% | 744 | +116 | +18.47% | $567,776 |
| ANALOG DEVICES INC | ADI | Technology | 0.03% | 1,395 | -96 | -6.44% | $554,052 |
| SELECT SECTOR SPDR TR | XLK | Other | 0.03% | 2,800 | - | - | $533,456 |
| EBAY INC. | EBAY | Consumer Cyclical | 0.02% | 4,739 | +564 | +13.51% | $529,583 |
| NETEASE COM INC | NTES | Communication Services | 0.02% | 4,085 | - | - | $523,452 |
| ORACLE CORP | ORCL | Technology | 0.02% | 3,505 | +8 | +0.23% | $513,649 |
| ISHARES TR | SOXX | Other | 0.02% | 771 | - | - | $494,273 |
| KLA CORP | KLAC | Technology | 0.02% | 1,604 | +1,427 | +806.21% | $483,943 |
| AUTOMATIC DATA PROCESSING IN | ADP | Technology | 0.02% | 2,092 | -140 | -6.27% | $468,503 |
| TRANE TECHNOLOGIES PLC | TT | Other | 0.02% | 948 | +1 | +0.11% | $465,620 |
| VANGUARD INDEX FDS | VTI | Other | 0.02% | 1,255 | -34 | -2.64% | $464,400 |
| ISHARES TR | IGM | Other | 0.02% | 2,816 | +884 | +45.76% | $460,641 |
| HUT 8 CORP | HUT | Financial Services | 0.02% | 3,986 | -5,000 | -55.64% | $460,164 |
| PEPSICO INC | PEP | Consumer Defensive | 0.02% | 3,365 | -357 | -9.59% | $455,565 |
| LENNAR CORP | LEN | Consumer Cyclical | 0.02% | 4,483 | +579 | +14.83% | $405,667 |
| THERMO FISHER SCIENTIFIC INC | TMO | Healthcare | 0.02% | 800 | -100 | -11.11% | $401,088 |
| STRYKER CORPORATION | SYK | Healthcare | 0.02% | 1,221 | -542 | -30.74% | $384,313 |