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Main Street Research LLC

Q4 2025 13F Holdings

  • Location
    sausalito, CA
  • Num holdings

    129

  • Value ($000)

    $1,748,176

  • Date Filed
    02/09/2026
  • Form type
    13F-HR
  • CIK
    0001513211
  • All SEC filings
  • Note
    Holdings aggregated across “other managers” listed in original SEC filing, see here for detailed holdings broken out by other managers
Compare Q4 2025 to
Select Quarter
Issuer Name
Class
CUSIP
VALUE
%
Shares
Principal
Option Type
N
NVDA

NVIDIA CORPORATION

COM
67066G104
$111.12M
6 %

595,844

G
GOOGL

ALPHABET INC

CAP STK CL A
02079K305
$93.13M
5 %

297,544

M
MSFT

MICROSOFT CORP

COM
594918104
$81.35M
5 %

168,207

I
ISCF

ISHARES TR

INTERNATIONAL SL
46434V266
$79.14M
5 %

1,907,800

A
AAPL

APPLE INC

COM
037833100
$79.09M
5 %

290,937

P
PLTR

PALANTIR TECHNOLOGIES INC

CL A
69608A108
$78.25M
5 %

440,250

J
JPM

JPMORGAN CHASE & CO.

COM
46625H100
$71.51M
4 %

221,919

A
AVGO

BROADCOM INC

COM
11135F101
$71.09M
4 %

205,395

T
TSM

TAIWAN SEMICONDUCTOR MFG LTD

SPONSORED ADS
874039100
$66.47M
4 %

218,147

V
V

VISA INC

COM CL A
92826C839
$61.05M
4 %

174,088

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