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Main Street Research LLC

Q1 2026 13F Holdings

  • Location
    sausalito, CA
  • Num holdings

    148

  • Value ($000)

    $1,718,528

  • Date Filed
    04/30/2026
  • 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 Q1 2026 to
Select Quarter
Issuer Name
Class
CUSIP
VALUE
%
Shares
Principal
Option Type
N
NVDA

NVIDIA CORPORATION

COM
67066G104
$108.26M
6 %

620,776

A
AAPL

APPLE INC

COM
037833100
$102.42M
6 %

403,578

G
GOOGL

ALPHABET INC

CAP STK CL A
02079K305
$89.66M
5 %

311,786

I
ISCF

ISHARES TR

INTERNATIONAL SL
46434V266
$81.85M
5 %

1,958,627

T
TSM

TAIWAN SEMICONDUCTOR MANUFAC

SPONSORED ADS
874039100
$75.42M
4 %

223,159

K
KRE

SPDR SERIES TRUST

STATE STREET SPD
78464A870
$72.48M
4 %

567,479

J
JPM

JPMORGAN CHASE & CO

COM
46625H100
$65.82M
4 %

223,762

A
AVGO

BROADCOM INC

COM
11135F101
$65.74M
4 %

212,402

M
MCK

MCKESSON CORP

COM
58155Q103
$58.65M
3 %

67,774

A
AMZN

AMAZON COM INC

COM
023135106
$56.06M
3 %

269,193

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