§ 13F · FUND PROFILE
Main Street Research LLC.
Institutional filer · behavioral pattern: Other. Summary pending.
AUM · $1606.5T (13F)Positions · 115Turnover · — · Q4Filed · Feb 9, 2026
CONCENTRATION
—
Top 10 holdings
NEW BUYS
0
+$117.1T deployed
EXITS
0
No exits
SECTOR SHIFT
—
No prior quarter data
3YR HIT RATE
—
Top-5 overlap
§ 01 · TOP HOLDINGS
The book · Q4 2025
FILED FEB 9, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q4 |
|---|---|---|---|---|---|---|
| 1 | NVDA | NVIDIA CORPORATION | 596K | $111.1T | 6.4% | −1% |
| 2 | GOOGL | ALPHABET INC | 298K | $93.1T | 5.3% | −1% |
| 3 | MSFT | MICROSOFT CORP | 168K | $81.3T | 4.7% | ±0% |
| 4 | ISCF | ISHARES TR | 1.91M | $79.1T | 4.5% | +28% |
| 5 | AAPL | APPLE INC | 291K | $79.1T | 4.5% | −17% |
| 6 | PLTR | PALANTIR TECHNOLOGIES INC | 440K | $78.3T | 4.5% | −3% |
| 7 | JPM | JPMORGAN CHASE & CO. | 222K | $71.5T | 4.1% | −1% |
| 8 | AVGO | BROADCOM INC | 205K | $71.1T | 4.1% | −1% |
| 9 | TSM | TAIWAN SEMICONDUCTOR MFG LTD | 218K | $66.5T | 3.8% | −1% |
| 10 | V | VISA INC | 174K | $61.1T | 3.5% | −2% |
§ 02 · SECTOR ALLOCATION
Where the money is
Sector data pending
§ 03 · THE MAIN SIGNAL
AC read
Main Street Research LLC is a Other fund managing $1606494.0 trillion in assets. The fund runs a portfolio of 115 positions.
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
1 FILINGS
Q4 2025
Steady book
+0 buys · −0 exits · 0 changed
Q3 2025
Steady book
+0 buys · −0 exits · 0 changed
Q2 2025
Steady book
+0 buys · −0 exits · 0 changed
Q1 2025
Steady book
+0 buys · −0 exits · 0 changed