Filed: 4/30/2026ACC: 0001420506-26-000773
📋 What this filing means
MAIN STREET RESEARCH LLC filed this quarterly 13F‑HR report disclosing 148 equity positions with a total reported market value of $1.72B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
148
Positions
$1.72B
Total AUM (reported)
11.17M
Total Shares
Allocation by class
COM$1.00B58.3%
SPONSORED ADS$114.16M6.6%
CL A$107.97M6.3%
CAP STK CL A$89.66M5.2%
INTERNATIONAL SL$81.85M4.8%
STATE STREET SPD$72.48M4.2%
N Y REGISTRY SHS$55.06M3.2%
Portfolio Concentration
Top 3$300.34M17.5%
4–10$476.03M27.7%
11–25$650.99M37.9%
Rest$291.17M16.9%
Top 3 weight
17.5%
Top 10 weight
45.2%
Voting Authority Distribution
Total shares with voting rights: 11.17M
Sole
Full voting authority
11.17M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole148
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings148
Rows:
NVIDIA CORPORATION
SOLEShares620.78K
TypeSH
Market value$108.26M
6.30%
Sole
620.78K
Shared
0.00
None
0.00
APPLE INC
SOLEShares403.58K
TypeSH
Market value$102.42M
5.96%
Sole
403.58K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares311.79K
TypeSH
Market value$89.66M
5.22%
Sole
311.79K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares1.96M
TypeSH
Market value$81.85M
4.76%
Sole
1.96M
Shared
0.00
None
0.00
TAIWAN SEMICONDUCTOR MANUFAC
SOLEShares223.16K
TypeSH
Market value$75.42M
4.39%
Sole
223.16K
Shared
0.00
None
0.00
SPDR SERIES TRUST
SOLEShares567.48K
TypeSH
Market value$72.48M
4.22%
Sole
567.48K
Shared
0.00
None
0.00
JPMORGAN CHASE & CO
SOLEShares223.76K
TypeSH
Market value$65.82M
3.83%
Sole
223.76K
Shared
0.00
None
0.00
BROADCOM INC
SOLEShares212.40K
TypeSH
Market value$65.74M
3.83%
Sole
212.40K
Shared
0.00
None
0.00
MCKESSON CORP
SOLEShares67.77K
TypeSH
Market value$58.65M
3.41%
Sole
67.77K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares269.19K
TypeSH
Market value$56.06M
3.26%
Sole
269.19K
Shared
0.00
None
0.00
ASML HLDG NV
SOLEShares41.69K
TypeSH
Market value$55.06M
3.20%
Sole
41.69K
Shared
0.00
None
0.00
CORNING INC
SOLEShares387.72K
TypeSH
Market value$52.72M
3.07%
Sole
387.72K
Shared
0.00
None
0.00
COSTCO WHOLESALE CORPORATION
SOLEShares46.14K
TypeSH
Market value$45.97M
2.68%
Sole
46.14K
Shared
0.00
None
0.00
JOHNSON & JOHNSON
SOLEShares186.88K
TypeSH
Market value$45.68M
2.66%
Sole
186.88K
Shared
0.00
None
0.00
ISHARES INC
SOLEShares361.87K
TypeSH
Market value$44.51M
2.59%
Sole
361.87K
Shared
0.00
None
0.00
GE VERNOVA INC
SOLEShares50.69K
TypeSH
Market value$44.25M
2.57%
Sole
50.69K
Shared
0.00
None
0.00
WORLD GOLD TR
SOLEShares469.45K
TypeSH
Market value$43.51M
2.53%
Sole
469.45K
Shared
0.00
None
0.00
CATERPILLAR INC
SOLEShares61.11K
TypeSH
Market value$43.29M
2.52%
Sole
61.11K
Shared
0.00
None
0.00
WALMART INC
SOLEShares344.87K
TypeSH
Market value$42.86M
2.49%
Sole
344.87K
Shared
0.00
None
0.00
CAMECO CORP
SOLEShares389.08K
TypeSH
Market value$42.26M
2.46%
Sole
389.08K
Shared
0.00
None
0.00
META PLATFORMS INC
SOLEShares70.96K
TypeSH
Market value$40.60M
2.36%
Sole
70.96K
Shared
0.00
None
0.00
AMPHENOL CORP
SOLEShares301.04K
TypeSH
Market value$38.04M
2.21%
Sole
301.04K
Shared
0.00
None
0.00
BHP BILLITON LIMITED
SOLEShares519.21K
TypeSH
Market value$37.77M
2.20%
Sole
519.21K
Shared
0.00
None
0.00
ASTRAZENECA PLC
SOLEShares190.64K
TypeSH
Market value$37.60M
2.19%
Sole
190.64K
Shared
0.00
None
0.00
MICRON TECHNOLOGY INC
SOLEShares109.11K
TypeSH
Market value$36.86M
2.14%
Sole
109.11K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
NVIDIA CORPORATIONSOLE | COM | 620.78K | SH | $108.26M 6.30% | 620.78K | 0.00 | 0.00 |
APPLE INCSOLE | COM | 403.58K | SH | $102.42M 5.96% | 403.58K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 311.79K | SH | $89.66M 5.22% | 311.79K | 0.00 | 0.00 |
ISHARES TRSOLE | INTERNATIONAL SL | 1.96M | SH | $81.85M 4.76% | 1.96M | 0.00 | 0.00 |
TAIWAN SEMICONDUCTOR MANUFACSOLE | SPONSORED ADS | 223.16K | SH | $75.42M 4.39% | 223.16K | 0.00 | 0.00 |
SPDR SERIES TRUSTSOLE | STATE STREET SPD | 567.48K | SH | $72.48M 4.22% | 567.48K | 0.00 | 0.00 |
JPMORGAN CHASE & COSOLE | COM | 223.76K | SH | $65.82M 3.83% | 223.76K | 0.00 | 0.00 |
BROADCOM INCSOLE | COM | 212.40K | SH | $65.74M 3.83% | 212.40K | 0.00 | 0.00 |
MCKESSON CORPSOLE | COM | 67.77K | SH | $58.65M 3.41% | 67.77K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 269.19K | SH | $56.06M 3.26% | 269.19K | 0.00 | 0.00 |
ASML HLDG NVSOLE | N Y REGISTRY SHS | 41.69K | SH | $55.06M 3.20% | 41.69K | 0.00 | 0.00 |
CORNING INCSOLE | COM | 387.72K | SH | $52.72M 3.07% | 387.72K | 0.00 | 0.00 |
COSTCO WHOLESALE CORPORATIONSOLE | COM | 46.14K | SH | $45.97M 2.68% | 46.14K | 0.00 | 0.00 |
JOHNSON & JOHNSONSOLE | COM | 186.88K | SH | $45.68M 2.66% | 186.88K | 0.00 | 0.00 |
ISHARES INCSOLE | MSCI STH KOR ETF | 361.87K | SH | $44.51M 2.59% | 361.87K | 0.00 | 0.00 |
GE VERNOVA INCSOLE | COM | 50.69K | SH | $44.25M 2.57% | 50.69K | 0.00 | 0.00 |
WORLD GOLD TRSOLE | SPDR GLD MINIS | 469.45K | SH | $43.51M 2.53% | 469.45K | 0.00 | 0.00 |
CATERPILLAR INCSOLE | COM | 61.11K | SH | $43.29M 2.52% | 61.11K | 0.00 | 0.00 |
WALMART INCSOLE | COM | 344.87K | SH | $42.86M 2.49% | 344.87K | 0.00 | 0.00 |
CAMECO CORPSOLE | COM | 389.08K | SH | $42.26M 2.46% | 389.08K | 0.00 | 0.00 |
META PLATFORMS INCSOLE | CL A | 70.96K | SH | $40.60M 2.36% | 70.96K | 0.00 | 0.00 |
AMPHENOL CORPSOLE | CL A | 301.04K | SH | $38.04M 2.21% | 301.04K | 0.00 | 0.00 |
BHP BILLITON LIMITEDSOLE | SPONSORED ADS | 519.21K | SH | $37.77M 2.20% | 519.21K | 0.00 | 0.00 |
ASTRAZENECA PLCSOLE | ORD | 190.64K | SH | $37.60M 2.19% | 190.64K | 0.00 | 0.00 |
MICRON TECHNOLOGY INCSOLE | COM | 109.11K | SH | $36.86M 2.14% | 109.11K | 0.00 | 0.00 |
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