Main Street Research LLC Portfolio Holdings

Main Street Research LLC

  • $1.56 Billion
  • Q2 2025

Main Street Research LLC has filed its 13F form on August 05, 2025 for Q2 2025 where it was disclosed a total value porftolio of $1.56 Billion distributed in 115 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Nvidia Corp with a value of $94M, Jpmorgan Chase & CO with a value of $65M, Procter & Gamble CO with a value of $64.8M, Palantir Technologies Inc. with a value of $62.9M, and Costco Wholesale Corp with a value of $62.2M.

Examining the 13F form we can see an increase of $99.4M in the current position value, from $1.46B to 1.56B.

Main Street Research LLC is based out at Sausalito, CA

Below you can find more details about Main Street Research LLC portfolio as well as his latest detailed transactions.

Portfolio value $1.56 Billion
Technology: $552 Million
Communication Services: $243 Million
Financial Services: $228 Million
Consumer Defensive: $163 Million
Consumer Cyclical: $153 Million
Healthcare: $132 Million
ETFs: $42.8 Million
Industrials: $38.2 Million
Other: $3.98 Million

Stock Holdings Table Market Cap. of Under $50 Millions

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History

Summary

  • Portfolio
  • No. of Stocks 115
  • Current Value $1.56 Billion
  • Prior Value $1.46 Billion
  • Filing
  • Period Q2 2025
  • Filing Date August 05, 2025
  • Form Type 13F-HR
  • Activity in Q2 2025
  • New Purchases 27 stocks
  • Additional Purchases 27 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 51 stocks
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