Thomas Russo
Gardner Russo & Quinn · SEC CIK 860643
Global family-controlled brands; capacity to suffer.
This filing is 67 days old. Gardner Russo & Quinn keeps roughly 96% of its positions in a typical quarter, so about 97% of this book is likely still intact today.
How half-life is computedSnapshot half-life is the number of days after the period end at which half of this specific fund's reported book is expected to have changed, measured from its own past filings. It is a decay estimate, not knowledge of current positions.
Largest holdings, as filed
Top 10 of 86 positions. Weights are against the whole filed book. 13F filings cover US-listed holdings only.
| Company | Ticker | Value | % of book | Freshness |
|---|---|---|---|---|
| Berkshire Hathaway Inc Cl A | BRK/A | $1.05B | 12.3% | |
| Alphabet Inc Cl C | GOOG | $961.08M | 11.3% | |
| Mastercard Inc Cl A | MA | $777.04M | 9.2% | |
| Philip Morris International In | PM | $761.40M | 9.0% | |
| Heineken Holding NV | $643.36M | 7.6% | n/a | |
| Compagnie Financiere Richemont | $594.39M | 7.0% | n/a | |
| Nestle SA Sponsored ADR | NSRGY | $543.24M | 6.4% | |
| Netflix Inc | NFLX | $539.47M | 6.3% | |
| Berkshire Hathaway Inc Cl B | BRK/B | $532.12M | 6.3% | |
| Martin Marietta Materials | MLM | $421.15M | 5.0% |
Freshness: how likely each position is still held today, from this fund's own turnover history, each position's tenure and the filing's age. Hover a bar for the numbers. Method.
What changed last quarter
Between Q1 2026 and Q1 2026, the largest add was DASH (shares up 19%), now $218.87M; the largest trim was GOOG (shares down 15%); XOM no longer appears among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Biggest buys, Q1 2026
- DASH add +19%$218.87M
Exited since Q1 2026
- XOMwas $32.91M
Exit scan covers the previous quarter's 40 largest positions, a stated bound, because reading a mega fund's entire book per page render is not honest engineering.
Common questions
What are Thomas Russo's biggest holdings?
As of the Q1 2026 13F, the largest reported positions at Gardner Russo & Quinn are BRK/A (12.3% of the book), GOOG (11.3% of the book), MA (9.2% of the book).
How big is Gardner Russo & Quinn's portfolio?
The latest 13F reports $8.50B across 86 US-listed positions. 13F filings cover US-listed holdings only, so non-US positions and shorts are not included.
Does Thomas Russo still hold these positions?
Unknown for certain: a 13F may be filed up to 45 days after quarter end. Based on Gardner Russo & Quinn's own filing history, the fund keeps roughly 96% of positions in a typical quarter, so at 67 days since the period end roughly 97% of this book is likely intact. The snapshot half-life for this fund is about 1662 days.
What did Thomas Russo buy and sell last quarter?
Between Q1 2026 and Q1 2026, the largest add was DASH (shares up 19%), now $218.87M; the largest trim was GOOG (shares down 15%); XOM no longer appears among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Inside the app: the full book for Gardner Russo & Quinn, quarter on quarter buys and sells, consensus across 140+ funds and copy-to-watchlist.
Source: SEC EDGAR 13F filings. Values are as filed and cover US-listed positions only. A 13F may be filed up to 45 days after the quarter ends, so positions can change before the filing is even public; the freshness figures above quantify that lag instead of hiding it. Educational information, not financial advice.