Thomas Russo's Gardner Russo & Quinn reported Berkshire Hathaway Inc (BRK-A) as the largest of its 85 stock positions for 2026 Q3, according to the 13F-HR filed with the SEC on November 12, 2026: 1.39K shares worth about $1.04B, 12.35% of the portfolio. BRK-A ranked 2nd a quarter earlier, at 12.01% of the book.
What did the 2026 Q3 filing report for BRK-A?
As of September 30, 2026, from the 13F-HR filed November 12, 2026.
| Value | |
|---|---|
| Portfolio weight | 12.35% |
| Shares | 1.39K |
| Reported value | $1.04B |
| Rank in portfolio | 1st of 85 |
| Rank a quarter earlier | 2nd |
| Largest holding a quarter earlier | GOOG at 12.07% |
| Next largest holding now | GOOG at 11.8% |
How did BRK-A become the largest holding?
Thomas Russo trimmed the BRK-A share count by 3% in 2026 Q3; the name moved up as the rest of the book shifted. GOOG, the largest holding a quarter earlier at 12.07%, was trimmed to 11.8%, now 2nd. The next largest holding now is GOOG at 11.8%.
Where does BRK-A sit in the Thomas Russo portfolio?
BRK-A is the largest of 85 stock positions in the Thomas Russo portfolio at 12.35%, above the fund's average stock position of 1%. The BRK-A cut was the 3rd largest of the quarter's 50 position changes by percent change to portfolio. Across the 2026 Q3 portfolio, Thomas Russo reported 85 stock positions, with 2 opened and 2 closed. The total portfolio value is about $8.42B, down 6% from the prior quarter.
How long has Thomas Russo held BRK-A?
Thomas Russo has held BRK-A since at least the quarter ended June 30, 2013, the start of the filings we track. The weight peaked at 14.83% in 2025 Q1. Last quarter the fund cut the position by 2%. Every reported trade is on the Thomas Russo BRK-A trade history page.
Did other funds buy or sell BRK-A in 2026 Q3?
Among the other tracked funds that had filed for 2026 Q3 as of November 12, 2026, 5 hold BRK-A. The largest seller was Francois Rochon. Every tracked holder of BRK-A is on the BRK-A ownership page.
FAQ
What is the largest holding in the Thomas Russo portfolio?
BRK-A is the largest holding in the Thomas Russo portfolio as of 2026 Q3, at 12.35% of the reported value.
What was the largest holding of Thomas Russo a quarter earlier?
GOOG, at 12.07% of the book. GOOG, the largest holding a quarter earlier at 12.07%, was trimmed to 11.8%, now 2nd.
How did BRK-A become the largest holding of Thomas Russo?
BRK-A ranked 2nd a quarter earlier, at 12.01% of the book. Thomas Russo trimmed the BRK-A share count by 3% in 2026 Q3; the name moved up as the rest of the book shifted. GOOG, the largest holding a quarter earlier at 12.07%, was trimmed to 11.8%, now 2nd.
How many BRK-A shares does Thomas Russo hold?
Thomas Russo holds 1.39K shares of BRK-A, worth about $1.04B at September 30, 2026 prices.