Main Street Research LLC

In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 5, 2025), Main Street Research LLC reported 115 stock positions worth $1.6 billion. Its top holding was Nvidia (NVDA) at 5.9% of the portfolio, followed by JPMorgan Chase (JPM, 4.0%) and Procter & Gamble (PG, 4.0%). Compared with Q1 2025, it opened 27 new positions, sold out of 13, added to 27 and reduced 51. The biggest buy was a new position in Robinhood Markets Class A (HOOD) and the biggest sale an exit from Parker Hannifin (PH).

Most Recent 13F
Q2 2026
Location
SAUSALITO, CA
CIK
0001513211
Portfolio Value
$1.6B (Q2 2025)
SEC Filing
0001420506-25-001710 ↗ filed Aug 5, 2025

Holdings Value

0$500.0M$1.0B$1.5B$2.0B$2.5B Q1 2024: $1.5B Q1 2024 Q2 2024: $1.5B Q2 2024 Q3 2024: $1.6B Q3 2024 Q4 2024: $1.6B Q4 2024 Q1 2025: $1.5B Q1 2025 Q2 2025: $1.6B $1.6B Q2 2025 Q3 2025: $1.9B Q3 2025 Q4 2025: $1.7B Q4 2025 Q1 2026: $1.7B Q1 2026 Q2 2026: $2.1B Q2 2026

Holdings 115 stocks · $1.6B

NVDA Nvidia Corp. 5.85% 595,176 $94.0M Add +32.9%
JPM JPMorgan Chase & Co. 4.05% 224,286 $65.0M Add +2.6%
PG The Procter & Gamble Co. 4.04% 406,912 $64.8M Add +2.5%
PLTR Palantir Technologies Inc. Class A 3.92% 461,432 $62.9M Reduce -49.0%
COST Costco Wholesale Corp. 3.87% 62,849 $62.2M Add +1.4%
V Visa Inc. Class A 3.81% 172,420 $61.2M Add +0.6%
AAPL Apple Inc. 3.76% 294,394 $60.4M Reduce -21.2%
NFLX Netflix Inc. 3.55% 42,590 $57.0M Add +2.1%
BRK.B Berkshire Hathaway Inc. Class B 3.51% 116,181 $56.4M Add +4.3%
GOOGL Alphabet Inc. Class A 3.26% 297,345 $52.4M Add +3.5%
AVGO Broadcom Inc. 3.17% 184,625 $50.9M Reduce -30.6%
MCK McKesson Corp. 3.16% 69,178 $50.7M Add +0.8%
HOOD Robinhood Markets Inc. Class A 3.13% 536,736 $50.3M New
AMZN Amazon.com Inc. 3.06% 224,164 $49.2M Reduce -28.3%
MSFT Microsoft Corp. 2.93% 94,702 $47.1M Reduce -29.1%
META Meta Platforms Inc. Class A 2.92% 63,647 $47.0M Reduce -38.2%
TMUS T-Mobile US Inc. 2.66% 179,654 $42.8M Add +1.0%
UBER Uber Technologies Inc. 2.61% 449,335 $41.9M New
MELI MercadoLibre Inc. 2.56% 15,728 $41.1M Add +3.1%
BSX Boston Scientific Corp. 2.55% 381,293 $41.0M Add +2.3%
SPOT Spotify Technology SA 2.38% 49,819 $38.2M New
SAP Sap SE-Sponsored ADR 2.29% 120,723 $36.7M Add +0.8%
IBN Icici Bank Ltd.-Spon ADR 2.18% 1,040,030 $35.0M Add +1.6%
LIN Linde PLC 2.12% 72,478 $34.0M Add +3.1%
TT Trane Technologies PLC 2.08% 76,349 $33.4M New
WMT Walmart Inc. 2.04% 335,746 $32.8M Add +2514.2%
ISRG Intuitive Surgical Inc. 2.01% 59,513 $32.3M Reduce -25.8%
TSM Taiwan Semiconductor-SP ADR 1.94% 136,977 $31.1M Reduce -21.7%
CHKP Check Point Software Tech 1.88% 136,759 $30.3M New
GLDM SPDR Gold Minishares Trust 1.83% 448,487 $29.4M New
BKNG Booking Holdings Inc. 1.68% 4,668 $27.0M Reduce -43.5%
BABA Alibaba Group Holding-SP ADR 1.62% 226,019 $26.1M New
FICO Fair Isaac Corp. 1.22% 10,724 $19.6M Add +268.1%
GEV GE Vernova Inc. 0.91% 27,604 $14.6M Reduce -38.0%
ASML ASML Holding NV-NY Reg SHS 0.87% 17,497 $14.0M Add +3297.5%
MCD McDonald's Corp. 0.35% 18,973 $5.5M Reduce -3.6%
ADSK Autodesk Inc. 0.28% 14,654 $4.5M Reduce -0.7%
TSLA Tesla Inc. 0.23% 11,800 $3.7M Reduce -21.6%
BRK.A Berkshire Hathaway Inc. Class A 0.23% 5 $3.6M Reduce -28.6%
GOOG Alphabet Inc. Class C 0.22% 20,120 $3.6M Reduce -5.2%
URTH iShares MSCI World ETF 0.20% 18,688 $3.2M Add +1.0%
SCHW Schwab (charles) Corp. 0.19% 33,617 $3.1M Reduce -5.1%
PANW Palo Alto Networks Inc. 0.17% 13,146 $2.7M Reduce -4.7%
XOM Exxon Mobil Corp. 0.15% 21,984 $2.4M Reduce -91.3%
LLY Eli Lilly & Co. 0.13% 2,679 $2.1M Reduce -19.8%
IXUS iShares Core Intl Stock ETF 0.12% 25,485 $2.0M New
JNJ Johnson & Johnson 0.11% 11,300 $1.7M Reduce -11.8%
ABBV Abbvie Inc. 0.11% 9,102 $1.7M Reduce -2.3%
SPY SS SPDR S&P 500 ETF Trust-US 0.10% 2,671 $1.7M Add +23.0%
WFC Wells Fargo & Co. 0.09% 18,382 $1.5M Reduce -2.6%
CVX Chevron Corp. 0.09% 9,534 $1.4M Reduce -17.9%
MMM 3M Co. 0.08% 8,056 $1.2M Reduce -1.1%
CLX Clorox Company 0.07% 9,328 $1.1M No change
ISTB iShares Core 1-5 Year Usd Bo 0.06% 18,966 $923K Add +9.8%
ACN Accenture PLC Class A 0.05% 2,609 $780K Reduce -6.8%
ADP Automatic Data Processing 0.05% 2,478 $768K Reduce -8.5%
CAT Caterpillar Inc. 0.05% 1,926 $748K Reduce -98.0%
IVV iShares Core S&P 500 ETF 0.05% 1,202 $746K Reduce -4.6%
CSCO Cisco Systems Inc. 0.05% 10,577 $734K Reduce -98.0%
MU Micron Technology Inc. 0.05% 5,929 $731K New
SYK Stryker Corp. 0.05% 1,841 $730K Reduce -5.7%
MRK Merck & Co. Inc. 0.04% 8,968 $717K Reduce -2.8%
BMY Bristol-Myers Squibb Co. 0.04% 14,607 $676K Reduce -10.1%
RTX RTX Corp. 0.04% 4,485 $655K Add +1.2%
VTI VG Morningstar TS MKT ETF-US 0.04% 2,007 $612K Add +0.5%
CL Colgate-Palmolive Co. 0.04% 6,699 $609K No change
AMD Advanced Micro Devices 0.04% 4,205 $597K New
SCHI Schwab 5-10 Year Corporate B 0.04% 26,009 $592K Add +63.5%
QQQ Invesco QQQ Trust Series 1 0.04% 1,039 $574K Add +31.5%
INTU Intuit Inc. 0.04% 715 $563K New
COIN Coinbase Global Inc. Class A 0.03% 1,550 $543K New
NTES Netease Inc.-ADR 0.03% 4,000 $538K No change
BAC Bank of America Corp. filed as BANK AMERICA CORP 0.03% 10,052 $476K Reduce -32.4%
IGLB iShares 10+ Year Inv GR Corp. 0.03% 9,454 $475K Add +45.3%
ABT Abbott Laboratories 0.03% 3,464 $471K Reduce -1.8%
ITOT iShares Core S&P Total U.S. 0.03% 3,405 $460K New
CRM Salesforce Inc. 0.03% 1,652 $451K Reduce -75.4%
CW Curtiss-Wright Corp. 0.03% 888 $434K No change
HSBC HSBC Holdings PLC-Spons ADR filed as HSBC HLDGS PLC 0.03% 6,997 $425K New
XYL Xylem Inc. 0.03% 3,250 $420K No change
RELX Relx PLC - Spon ADR 0.03% 7,666 $417K New
ADI Analog Devices Inc. 0.03% 1,747 $416K New
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.03% 1,377 $406K Reduce -3.6%
C Citigroup Inc. 0.02% 4,618 $393K Reduce -19.4%
TMO Thermo Fisher Scientific Inc. 0.02% 918 $373K Reduce -26.8%
HD Home Depot Inc. 0.02% 1,011 $371K Reduce -19.4%
CMCSA Comcast Corp. Class A 0.02% 10,372 $370K No change
T AT&T Inc. 0.02% 12,254 $355K Reduce -21.9%
SJM The JM Smucker Co. filed as SMUCKER J M CO 0.02% 3,539 $348K No change
PEP Pepsico Inc. 0.02% 2,591 $342K Add +13.1%
VOO Vanguard S&P 500 ETF 0.02% 591 $337K Reduce -23.4%
TXN Texas Instruments Inc. 0.02% 1,569 $326K Reduce -3.1%
IWF iShares Russell 1000 Growth 0.02% 766 $325K No change
HIMS Hims & Hers Health Inc. 0.02% 6,200 $309K Reduce -12.7%
ADBE Adobe Inc. 0.02% 786 $304K Reduce -1.1%
NSC Norfolk Southern Corp. 0.02% 1,181 $302K Reduce -25.4%
ORCL Oracle Corp. 0.02% 1,363 $298K Reduce -99.4%
TRMB Trimble Inc. 0.02% 3,820 $290K Reduce -45.4%
DIA SS SPDR Dow Jones Indus Avg filed as SPDR DOW JONES INDL AVERAGE 0.02% 640 $283K No change
PYPL PayPal Holdings Inc. 0.02% 3,800 $282K New
DKNG Draftkings Inc. Class A 0.02% 6,500 $279K New
MA Mastercard Inc. Class A 0.02% 477 $268K Reduce -29.9%
SCHX Schwab US Large-Cap ETF 0.02% 10,898 $266K New
KO The Coca-Cola Co. 0.02% 3,597 $256K Reduce -24.2%
LNG Cheniere Energy Inc. 0.02% 1,008 $245K No change
DAL Delta Air Lines Inc. 0.01% 4,860 $239K New
SHOP Shopify Inc. Class A 0.01% 2,000 $231K New
NOW ServiceNow Inc. 0.01% 216 $222K Reduce -98.7%
AON Aon PLC Class A 0.01% 620 $221K Reduce -0.3%
IYY iShares Dow Jones U.S. ETF 0.01% 1,446 $218K New
IGM iShares Expanded Tech Sector 0.01% 1,932 $217K New
COF Capital One Financial Corp. 0.01% 1,016 $216K New
SCHF Schwab Intl Equity ETF 0.01% 9,606 $212K New
GLD SPDR Gold Shares 0.01% 689 $210K New
FNDX Schwab Fndmntl US LRG Co. ETF 0.01% 8,541 $210K New

Portfolio Sells Q1 2025 → Q2 2025

PH Parker Hannifin Corp. Sold out 0.00% −2.18
CSCO Cisco Systems Inc. Reduce -98.0% 0.05% −2.09
CAT Caterpillar Inc. Reduce -98.0% 0.05% −2.08
FTNT Fortinet Inc. Sold out 0.00% −2.01
ORCL Oracle Corp. Reduce -99.4% 0.02% −1.97
XOM Exxon Mobil Corp. Reduce -91.3% 0.15% −1.81
AAPL Apple Inc. Reduce -21.2% 3.76% −1.66
PLTR Palantir Technologies Inc. Class A Reduce -49.0% 3.92% −1.08
MS Morgan Stanley Sold out 0.00% −1.02
AZN Astrazeneca PLC-Spons ADR Sold out 0.00% −0.97
META Meta Platforms Inc. Class A Reduce -38.2% 2.92% −0.95
GS Goldman Sachs Group Inc. Sold out 0.00% −0.91
CRH CRH PLC Sold out 0.00% −0.88
NOW ServiceNow Inc. Reduce -98.7% 0.01% −0.87
IBIT iShares Bitcoin Trust ETF Sold out 0.00% −0.86
AMZN Amazon.com Inc. Reduce -28.3% 3.06% −0.82
BKNG Booking Holdings Inc. Reduce -43.5% 1.68% −0.80
ISRG Intuitive Surgical Inc. Reduce -25.8% 2.01% −0.58
MSFT Microsoft Corp. Reduce -29.1% 2.93% −0.35
BRK.A Berkshire Hathaway Inc. Class A Reduce -28.6% 0.23% −0.14
CRM Salesforce Inc. Reduce -75.4% 0.03% −0.09
MCD McDonald's Corp. Reduce -3.6% 0.35% −0.06
NVO Novo-Nordisk A/S-Spons ADR Sold out 0.00% −0.05
LLY Eli Lilly & Co. Reduce -19.8% 0.13% −0.05
CVX Chevron Corp. Reduce -17.9% 0.09% −0.04
JNJ Johnson & Johnson Reduce -11.8% 0.11% −0.03
BMY Bristol-Myers Squibb Co. Reduce -10.1% 0.04% −0.02
ABBV Abbvie Inc. Reduce -2.3% 0.11% −0.02
USFR Wisdomtree Floating Rate Tre Sold out 0.00% −0.02
TSLA Tesla Inc. Reduce -21.6% 0.23% −0.02
TMO Thermo Fisher Scientific Inc. Reduce -26.8% 0.02% −0.02
BX Blackstone Inc. Sold out 0.00% −0.02
QCOM Qualcomm Inc. Sold out 0.00% −0.01
JAAA Janus Henderson Aaa Clo ETF Sold out 0.00% −0.01
TRMB Trimble Inc. Reduce -45.4% 0.02% −0.01
BAC Bank of America Corp. Reduce -32.4% 0.03% −0.01
MRK Merck & Co. Inc. Reduce -2.8% 0.04% −0.01
ACN Accenture PLC Class A Reduce -6.8% 0.05% −0.01
MA Mastercard Inc. Class A Reduce -29.9% 0.02% −0.01
HD Home Depot Inc. Reduce -19.4% 0.02% −0.01
T AT&T Inc. Reduce -21.9% 0.02% −0.01
ADP Automatic Data Processing Reduce -8.5% 0.05% −0.01
KO The Coca-Cola Co. Reduce -24.2% 0.02% −0.01
LOCL Local Bounti Corp. Sold out 0.00% −0.01
NSC Norfolk Southern Corp. Reduce -25.4% 0.02% −0.01
VOO Vanguard S&P 500 ETF Reduce -23.4% 0.02% −0.01
AON Aon PLC Class A Reduce -0.3% 0.01% −0.00
SYK Stryker Corp. Reduce -5.7% 0.05% −0.00
C Citigroup Inc. Reduce -19.4% 0.02% −0.00
MMM 3M Co. Reduce -1.1% 0.08% −0.00

Portfolio Buys Q1 2025 → Q2 2025

HOOD Robinhood Markets Inc. Class A New 3.13% +3.13
NVDA Nvidia Corp. Add +32.9% 5.85% +2.68
UBER Uber Technologies Inc. New 2.61% +2.61
SPOT Spotify Technology SA New 2.38% +2.38
TT Trane Technologies PLC New 2.08% +2.08
WMT Walmart Inc. Add +2514.2% 2.04% +1.97
CHKP Check Point Software Tech New 1.88% +1.88
GLDM SPDR Gold Minishares Trust New 1.83% +1.83
BABA Alibaba Group Holding-SP ADR New 1.62% +1.62
NFLX Netflix Inc. Add +2.1% 3.55% +1.01
FICO Fair Isaac Corp. Add +268.1% 1.22% +0.87
ASML ASML Holding NV-NY Reg SHS Add +3297.5% 0.87% +0.85
MELI MercadoLibre Inc. Add +3.1% 2.56% +0.62
JPM JPMorgan Chase & Co. Add +2.6% 4.05% +0.54
GOOGL Alphabet Inc. Class A Add +3.5% 3.26% +0.36
SAP Sap SE-Sponsored ADR Add +0.8% 2.29% +0.18
MCK McKesson Corp. Add +0.8% 3.16% +0.14
IXUS iShares Core Intl Stock ETF New 0.12% +0.12
BSX Boston Scientific Corp. Add +2.3% 2.55% +0.09
IBN Icici Bank Ltd.-Spon ADR Add +1.6% 2.18% +0.07
MU Micron Technology Inc. New 0.05% +0.05
COST Costco Wholesale Corp. Add +1.4% 3.87% +0.04
AMD Advanced Micro Devices New 0.04% +0.04
INTU Intuit Inc. New 0.04% +0.04
COIN Coinbase Global Inc. Class A New 0.03% +0.03
ITOT iShares Core S&P Total U.S. New 0.03% +0.03
HSBC HSBC Holdings PLC-Spons ADR New 0.03% +0.03
ADI Analog Devices Inc. New 0.03% +0.03
RELX Relx PLC - Spon ADR New 0.03% +0.03
SPY SS SPDR S&P 500 ETF Trust-US Add +23.0% 0.10% +0.02
PYPL PayPal Holdings Inc. New 0.02% +0.02
DKNG Draftkings Inc. Class A New 0.02% +0.02
SCHX Schwab US Large-Cap ETF New 0.02% +0.02
DAL Delta Air Lines Inc. New 0.01% +0.01
SHOP Shopify Inc. Class A New 0.01% +0.01
IYY iShares Dow Jones U.S. ETF New 0.01% +0.01
COF Capital One Financial Corp. New 0.01% +0.01
IGM iShares Expanded Tech Sector New 0.01% +0.01
SCHI Schwab 5-10 Year Corporate B Add +63.5% 0.04% +0.01
SCHF Schwab Intl Equity ETF New 0.01% +0.01
GLD SPDR Gold Shares New 0.01% +0.01
FNDX Schwab Fndmntl US LRG Co. ETF New 0.01% +0.01
URTH iShares MSCI World ETF Add +1.0% 0.20% +0.01
QQQ Invesco QQQ Trust Series 1 Add +31.5% 0.04% +0.01
IGLB iShares 10+ Year Inv GR Corp. Add +45.3% 0.03% +0.01
ISTB iShares Core 1-5 Year Usd Bo Add +9.8% 0.06% +0.00
RTX RTX Corp. Add +1.2% 0.04% +0.00
VTI VG Morningstar TS MKT ETF-US Add +0.5% 0.04% +0.00
PEP Pepsico Inc. Add +13.1% 0.02% −0.00
LIN Linde PLC Add +3.1% 2.12% −0.02

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 140$2.1BNVDA, MU, AAPL, GOOGL, TSM
Q1 2026 148$1.7BNVDA, AAPL, GOOGL, ISCF, TSM
Q4 2025 129$1.7BNVDA, GOOGL, MSFT, ISCF, AAPL
Q3 2025 129$1.9BNVDA, AAPL, MSFT, PLTR, HOOD
Q2 2025 115$1.6BNVDA, JPM, PG, PLTR, COST
Q1 2025 101$1.5BAAPL, PLTR, PG, V, AMZN
Q4 2024 110$1.6BAAPL, NVDA, PLTR, AMZN, PG
Q3 2024 109$1.6BNVDA, AAPL, PG, IWM, AMZN
Q2 2024 103$1.5BNVDA, AAPL, NVO, PG, MCK
Q1 2024 107$1.5BNVDA, IWM, NVO, AAPL, PG