Gardner Russo & Quinn 13F, Q1 2026
Thomas Russo · quarter ending 31 March 2026 · filed 13 May 2026 · SEC CIK 860643
Common stock only: shares the fund reported owning at the quarter end, valued as filed.
Largest positions, Q1 2026
The 25 largest of 86 positions. Weights are against the whole filed book. Changes are in shares held, against the Q4 2025 filing.
| Company | Ticker | Value | % of book | vs Q4 2025 |
|---|---|---|---|---|
| Berkshire Hathaway Inc Cl A | BRK/A | $1.05B | 12.3% | unchanged |
| Alphabet Inc Cl C | GOOG | $961.08M | 11.3% | -15% shares |
| Mastercard Inc Cl A | MA | $777.04M | 9.2% | unchanged |
| Philip Morris International In | PM | $761.40M | 9.0% | unchanged |
| Heineken Holding NV | $643.36M | 7.6% | unchanged | |
| Compagnie Financiere Richemont | $594.39M | 7.0% | unchanged | |
| Nestle SA Sponsored ADR | NSRGY | $543.24M | 6.4% | -2% shares |
| Netflix Inc | NFLX | $539.47M | 6.3% | +12% shares |
| Berkshire Hathaway Inc Cl B | BRK/B | $532.12M | 6.3% | unchanged |
| Martin Marietta Materials | MLM | $421.15M | 5.0% | unchanged |
| Sunbelt Rentals Holdings Inc | SUNB | $393.74M | 4.6% | new |
| Uber Technologies Inc | UBER | $372.12M | 4.4% | unchanged |
| Eurofins Scientific | $223.55M | 2.6% | new | |
| Pernod Ricard | $183.48M | 2.2% | -3% shares | |
| Doordash Inc Cl A | DASH | $150.33M | 1.8% | +8% shares |
| Comcast Corp New Cl A | CMCSA | $64.69M | 0.8% | -2% shares |
| Brown-Forman Corp Cl A | BF/A | $44.15M | 0.5% | unchanged |
| J.P. Morgan Chase | JPM | $43.77M | 0.5% | -72% shares |
| Exxon Mobil Corp | XOM | $32.91M | 0.4% | unchanged |
| Visa Inc Cl A | V | $28.35M | 0.3% | -14% shares |
| Brown-Forman Corp Cl B | BF/B | $17.44M | 0.2% | -7% shares |
| Anheuser-Busch InBev SA | $12.66M | 0.1% | -31% shares | |
| Altria Group Inc | MO | $10.85M | 0.1% | unchanged |
| Markel Corp | MKL | $9.48M | 0.1% | -21% shares |
| Crane Company | CR | $7.97M | 0.1% | -14% shares |
What changed since Q4 2025
Against the Q4 2025 filing, Gardner Russo & Quinn opened 4 new positions, added to 17, trimmed 30, left 35 unchanged and exited 5. Every position is compared, matched on its CUSIP; a change of 2% or less in shares counts as unchanged.
Other quarters
Source: SEC Form 13F-HR, accession 0000860643-26-000003, filed by GARDNER RUSSO & QUINN LLC. Values are as filed and cover US-listed positions only; a 13F does not show short positions or holdings outside the US. A 13F may be filed up to 45 days after the quarter ends, so the fund may have traded since. Educational information, not financial advice.