Main Street Research LLC

In its 13F for Q4 2024 (holdings as of December 31, 2024, filed February 7, 2025), Main Street Research LLC reported 110 stock positions worth $1.6 billion. Its top holding was Apple (AAPL) at 5.8% of the portfolio, followed by Nvidia (NVDA, 5.2%) and Palantir Technologies Class A (PLTR, 4.2%). Compared with Q3 2024, it opened 9 new positions, sold out of 8, added to 61 and reduced 25. The biggest buy was Palantir Technologies Class A (PLTR, shares +1%) and the biggest sale Novo-Nordisk A/S-Spons ADR (NVO, shares −81%).

Most Recent 13F
Q2 2026
Location
SAUSALITO, CA
CIK
0001513211
Portfolio Value
$1.6B (Q4 2024)
SEC Filing
0001420506-25-000201 ↗ filed Feb 7, 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 $1.6B Q4 2024 Q1 2025: $1.5B Q1 2025 Q2 2025: $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 110 stocks · $1.6B
AAPL Apple Inc. 5.77% 369,578 $92.5M Add +0.6%
NVDA Nvidia Corp. 5.18% 619,049 $83.1M Reduce -21.2%
PLTR Palantir Technologies Inc. Class A 4.23% 897,720 $67.9M Add +0.6%
AMZN Amazon.com Inc. 4.20% 306,948 $67.3M Add +2.6%
PG The Procter & Gamble Co. 4.03% 385,813 $64.7M Add +5.0%
IWM iShares Russell 2000 ETF 3.89% 282,358 $62.4M Add +2.8%
AVGO Broadcom Inc. 3.65% 252,424 $58.5M Add +2.3%
META Meta Platforms Inc. Class A 3.64% 99,659 $58.4M Add +2.7%
COST Costco Wholesale Corp. 3.50% 61,292 $56.2M Add +4.2%
MSFT Microsoft Corp. 3.41% 129,762 $54.7M Add +3.5%
GOOGL Alphabet Inc. Class A 3.31% 281,038 $53.2M Add +2.6%
V Visa Inc. Class A 3.31% 168,028 $53.1M Add +2.6%
JPM JPMorgan Chase & Co. 3.21% 214,725 $51.5M Add +2.0%
BRK.B Berkshire Hathaway Inc. Class B 3.09% 109,434 $49.6M Add +1.3%
ISRG Intuitive Surgical Inc. 2.59% 79,531 $41.5M Add +1.9%
BKNG Booking Holdings Inc. 2.54% 8,204 $40.8M Add +2.4%
TMUS T-Mobile US Inc. 2.42% 176,114 $38.9M Add +1.6%
MCK McKesson Corp. 2.41% 67,804 $38.7M Add +2.8%
ORCL Oracle Corp. 2.19% 211,326 $35.2M Add +1.0%
CAT Caterpillar Inc. 2.18% 96,486 $35.0M Add +2.6%
NOW ServiceNow Inc. 2.16% 32,737 $34.7M Add +100.6%
TSM Taiwan Semiconductor-SP ADR 2.13% 172,767 $34.2M Add +2.2%
PH Parker Hannifin Corp. 2.12% 53,370 $33.9M Add +1.5%
IR Ingersoll-Rand Inc. 2.06% 365,501 $33.1M Add +2.3%
RF Regions Financial Corp. 2.06% 1,388,068 $33.0M Add +2.4%
CB Chubb Ltd. 2.05% 118,621 $32.9M Add +1.9%
ANET Arista Networks Inc. 1.97% 285,740 $31.6M New
CEG Constellation Energy 1.96% 140,786 $31.5M Add +4.7%
IBN Icici Bank Ltd.-Spon ADR 1.87% 1,003,059 $30.0M Add +5.3%
LIN Linde PLC 1.74% 66,516 $27.8M Add +2.1%
XOM Exxon Mobil Corp. 1.63% 242,915 $26.1M Add +3.0%
MELI MercadoLibre Inc. 1.59% 15,022 $25.5M Add +117.0%
INTU Intuit Inc. 0.84% 21,485 $13.5M Reduce -48.2%
GD General Dynamics Corp. 0.84% 50,958 $13.4M Reduce -49.1%
NVO Novo-Nordisk A/S-Spons ADR 0.46% 85,803 $7.4M Reduce -81.4%
AMD Advanced Micro Devices 0.45% 60,445 $7.3M Reduce -47.6%
AMAT Applied Materials Inc. 0.41% 40,642 $6.6M Reduce -50.1%
TSLA Tesla Inc. 0.40% 15,968 $6.4M Add +14.8%
FICO Fair Isaac Corp. 0.39% 3,104 $6.2M Add +44.3%
MCD McDonald's Corp. 0.35% 19,618 $5.7M Reduce -0.9%
BRK.A Berkshire Hathaway Inc. Class A 0.30% 7 $4.8M No change
ADSK Autodesk Inc. 0.27% 14,632 $4.3M Reduce -0.4%
GOOG Alphabet Inc. Class C 0.24% 20,368 $3.9M Add +8.0%
URTH iShares MSCI World ETF 0.17% 17,616 $2.7M Add +22.9%
SCHW Schwab (charles) Corp. 0.17% 36,240 $2.7M Reduce -1.1%
LLY Eli Lilly & Co. 0.16% 3,363 $2.6M Add +1.9%
PANW Palo Alto Networks Inc. 0.16% 14,236 $2.6M Add +7.0%
CRM Salesforce Inc. 0.15% 7,280 $2.4M Add +8.0%
ABBV Abbvie Inc. 0.10% 9,475 $1.7M Reduce -2.0%
CVX Chevron Corp. 0.10% 10,941 $1.6M Reduce -2.4%
JNJ Johnson & Johnson 0.10% 10,640 $1.5M Add +1.5%
CLX Clorox Company 0.09% 9,328 $1.5M No change
WFC Wells Fargo & Co. 0.09% 20,775 $1.5M Add +0.3%
SPY SS SPDR S&P 500 ETF Trust-US 0.09% 2,331 $1.4M Add +9.7%
WMT Walmart Inc. 0.08% 15,046 $1.4M Add +26.7%
MMM 3M Co. 0.07% 8,076 $1.0M Add +88.1%
ACN Accenture PLC Class A 0.06% 2,878 $1.0M Reduce -1.9%
ADP Automatic Data Processing 0.06% 3,427 $1.0M Add +8.0%
MRK Merck & Co. Inc. 0.06% 9,667 $970K Reduce -0.2%
BMY Bristol-Myers Squibb Co. 0.05% 15,257 $863K Add +0.2%
TMO Thermo Fisher Scientific Inc. 0.05% 1,654 $861K Reduce -3.7%
VTI VG Morningstar TS MKT ETF-US 0.05% 2,801 $812K New
IVV iShares Core S&P 500 ETF 0.05% 1,366 $804K Reduce -27.2%
VOO Vanguard S&P 500 ETF 0.05% 1,472 $793K Add +52.1%
SYK Stryker Corp. 0.05% 2,046 $738K Reduce -2.9%
BSX Boston Scientific Corp. 0.04% 7,595 $678K Reduce -1.8%
CSCO Cisco Systems Inc. 0.04% 10,998 $651K Add +9.2%
CL Colgate-Palmolive Co. 0.04% 6,839 $622K No change
BAC Bank of America Corp. filed as BANK AMERICA CORP 0.04% 14,055 $618K Reduce -0.9%
QQQ Invesco QQQ Trust Series 1 0.03% 1,029 $526K Add +72.7%
RTX RTX Corp. 0.03% 4,540 $525K Add +13.9%
HD Home Depot Inc. 0.03% 1,345 $523K Add +25.8%
ABT Abbott Laboratories 0.03% 3,857 $436K Add +12.3%
PEP Pepsico Inc. 0.03% 2,712 $417K Add +8.9%
C Citigroup Inc. 0.03% 5,730 $403K Reduce -6.7%
TXN Texas Instruments Inc. 0.02% 2,110 $396K Add +3.1%
ADBE Adobe Inc. 0.02% 885 $394K Reduce -98.1%
ASML ASML Holding NV-NY Reg SHS 0.02% 564 $391K Reduce -97.1%
SJM The JM Smucker Co. filed as SMUCKER J M CO 0.02% 3,539 $390K No change
CMCSA Comcast Corp. Class A 0.02% 10,372 $389K No change
XYL Xylem Inc. 0.02% 3,250 $377K No change
NSC Norfolk Southern Corp. 0.02% 1,587 $372K Reduce -11.6%
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.02% 1,659 $365K Add +18.2%
SCHI Schwab 5-10 Year Corporate B 0.02% 16,396 $362K Reduce -7.7%
NTES Netease Inc.-ADR 0.02% 4,000 $357K No change
NFLX Netflix Inc. 0.02% 397 $354K Add +0.8%
VEEV Veeva Systems Inc. Class A 0.02% 1,600 $336K No change
IWF iShares Russell 1000 Growth 0.02% 835 $335K Add +20.1%
IGLB iShares 10+ Year Inv GR Corp. 0.02% 6,633 $328K New
DIA SS SPDR Dow Jones Indus Avg filed as SPDR DOW JONES INDL AVERAGE 0.02% 764 $326K Add +19.4%
CW Curtiss-Wright Corp. 0.02% 888 $315K No change
MA Mastercard Inc. Class A 0.02% 564 $297K Add +8.5%
APO Apollo Global Management Inc. 0.02% 1,775 $293K Add +2.4%
T AT&T Inc. 0.02% 12,344 $281K Reduce -0.8%
RMD Resmed Inc. 0.02% 1,208 $276K No change
DAL Delta Air Lines Inc. 0.02% 4,545 $275K No change
AON Aon PLC Class A 0.02% 720 $259K No change
SCHX Schwab US Large-Cap ETF 0.02% 10,689 $248K New
NKE Nike Inc. Class B 0.01% 3,147 $239K Add +22.6%
NEE Nextera Energy Inc. 0.01% 3,293 $236K New
LNG Cheniere Energy Inc. 0.01% 1,060 $228K New
BX Blackstone Inc. 0.01% 1,301 $224K Reduce -5.3%
VLO Valero Energy Corp. 0.01% 1,811 $222K New
KO The Coca-Cola Co. 0.01% 3,556 $221K Add +1.9%
CI The Cigna Group 0.01% 785 $217K Add +10.3%
IYY iShares Dow Jones U.S. ETF 0.01% 1,446 $207K No change
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.01% 1,830 $205K New
COF Capital One Financial Corp. 0.01% 1,137 $203K New
LOCL Local Bounti Corp. 0.01% 46,394 $96K No change
SAN Banco Santander SA-Spon ADR 0.01% 17,739 $81K No change

Portfolio Sells Q3 2024 → Q4 2024
NVO Novo-Nordisk A/S-Spons ADR Reduce -81.4% 0.46% −3.00
ADBE Adobe Inc. Reduce -98.1% 0.02% −1.49
TTE Totalenergies SE -Spon ADR Sold out 0.00% −1.43
GD General Dynamics Corp. Reduce -49.1% 0.84% −1.07
ASML ASML Holding NV-NY Reg SHS Reduce -97.1% 0.02% −1.00
NVDA Nvidia Corp. Reduce -21.2% 5.18% −0.83
INTU Intuit Inc. Reduce -48.2% 0.84% −0.78
AMD Advanced Micro Devices Reduce -47.6% 0.45% −0.74
AMAT Applied Materials Inc. Reduce -50.1% 0.41% −0.62
MCD McDonald's Corp. Reduce -0.9% 0.35% −0.03
MOAT Vaneck Morningstar Wide Moat Sold out 0.00% −0.02
IVV iShares Core S&P 500 ETF Reduce -27.2% 0.05% −0.02
UNH Unitedhealth Group Inc. Sold out 0.00% −0.02
ABBV Abbvie Inc. Reduce -2.0% 0.10% −0.02
TMO Thermo Fisher Scientific Inc. Reduce -3.7% 0.05% −0.01
MO Altria Group Inc. Sold out 0.00% −0.01
ENTG Entegris Inc. Sold out 0.00% −0.01
MU Micron Technology Inc. Sold out 0.00% −0.01
WM Waste Management Inc. Sold out 0.00% −0.01
MRK Merck & Co. Inc. Reduce -0.2% 0.06% −0.01
CVX Chevron Corp. Reduce -2.4% 0.10% −0.01
NSC Norfolk Southern Corp. Reduce -11.6% 0.02% −0.00
PSEC Prospect Capital Corp. Sold out 0.00% −0.00
SCHI Schwab 5-10 Year Corporate B Reduce -7.7% 0.02% −0.00
ACN Accenture PLC Class A Reduce -1.9% 0.06% −0.00
SYK Stryker Corp. Reduce -2.9% 0.05% −0.00
T AT&T Inc. Reduce -0.8% 0.02% +0.00
BX Blackstone Inc. Reduce -5.3% 0.01% +0.00
C Citigroup Inc. Reduce -6.7% 0.03% +0.00
BSX Boston Scientific Corp. Reduce -1.8% 0.04% +0.00
BAC Bank of America Corp. Reduce -0.9% 0.04% +0.00
ADSK Autodesk Inc. Reduce -0.4% 0.27% +0.01
SCHW Schwab (charles) Corp. Reduce -1.1% 0.17% +0.02

Portfolio Buys Q3 2024 → Q4 2024
PLTR Palantir Technologies Inc. Class A Add +0.6% 4.23% +2.14
ANET Arista Networks Inc. New 1.97% +1.97
NOW ServiceNow Inc. Add +100.6% 2.16% +1.24
AVGO Broadcom Inc. Add +2.3% 3.65% +0.97
MELI MercadoLibre Inc. Add +117.0% 1.59% +0.70
AMZN Amazon.com Inc. Add +2.6% 4.20% +0.69
V Visa Inc. Class A Add +2.6% 3.31% +0.48
GOOGL Alphabet Inc. Class A Add +2.6% 3.31% +0.46
BKNG Booking Holdings Inc. Add +2.4% 2.54% +0.42
JPM JPMorgan Chase & Co. Add +2.0% 3.21% +0.41
AAPL Apple Inc. Add +0.6% 5.77% +0.38
MCK McKesson Corp. Add +2.8% 2.41% +0.35
TSM Taiwan Semiconductor-SP ADR Add +2.2% 2.13% +0.28
COST Costco Wholesale Corp. Add +4.2% 3.50% +0.22
ISRG Intuitive Surgical Inc. Add +1.9% 2.59% +0.17
TSLA Tesla Inc. Add +14.8% 0.40% +0.17
TMUS T-Mobile US Inc. Add +1.6% 2.42% +0.17
META Meta Platforms Inc. Class A Add +2.7% 3.64% +0.14
FICO Fair Isaac Corp. Add +44.3% 0.39% +0.12
IBN Icici Bank Ltd.-Spon ADR Add +5.3% 1.87% +0.08
IWM iShares Russell 2000 ETF Add +2.8% 3.89% +0.07
VTI VG Morningstar TS MKT ETF-US New 0.05% +0.05
RF Regions Financial Corp. Add +2.4% 2.06% +0.04
GOOG Alphabet Inc. Class C Add +8.0% 0.24% +0.04
CRM Salesforce Inc. Add +8.0% 0.15% +0.04
URTH iShares MSCI World ETF Add +22.9% 0.17% +0.03
MMM 3M Co. Add +88.1% 0.07% +0.03
PG The Procter & Gamble Co. Add +5.0% 4.03% +0.03
WMT Walmart Inc. Add +26.7% 0.08% +0.02
PH Parker Hannifin Corp. Add +1.5% 2.12% +0.02
IGLB iShares 10+ Year Inv GR Corp. New 0.02% +0.02
PANW Palo Alto Networks Inc. Add +7.0% 0.16% +0.02
WFC Wells Fargo & Co. Add +0.3% 0.09% +0.02
VOO Vanguard S&P 500 ETF Add +52.1% 0.05% +0.02
SCHX Schwab US Large-Cap ETF New 0.02% +0.02
NEE Nextera Energy Inc. New 0.01% +0.01
QQQ Invesco QQQ Trust Series 1 Add +72.7% 0.03% +0.01
LNG Cheniere Energy Inc. New 0.01% +0.01
VLO Valero Energy Corp. New 0.01% +0.01
DIS The Walt Disney Co. New 0.01% +0.01
COF Capital One Financial Corp. New 0.01% +0.01
MSFT Microsoft Corp. Add +3.5% 3.41% +0.01
SPY SS SPDR S&P 500 ETF Trust-US Add +9.7% 0.09% +0.01
ADP Automatic Data Processing Add +8.0% 0.06% +0.01
CSCO Cisco Systems Inc. Add +9.2% 0.04% +0.01
HD Home Depot Inc. Add +25.8% 0.03% +0.01
APO Apollo Global Management Inc. Add +2.4% 0.02% +0.00
IWF iShares Russell 1000 Growth Add +20.1% 0.02% +0.00
NFLX Netflix Inc. Add +0.8% 0.02% +0.00
BMY Bristol-Myers Squibb Co. Add +0.2% 0.05% +0.00

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