Tom Russo portfolio: stocks, buys and sells →
Gardner Russo & Quinn: full 13F, sectors and history
Concentrated managerInvestment firmPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 13, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Gardner Russo & Quinn reported a $8.9 bn portfolio of 80 companies (85 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are BRK/A, GOOG, PM.
Sections with a free account
What changed this quarter
51 positions with a change (9 added to, 41 trimmed, 1 sold). 2 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Alphabet−1.2 ppof portfolioReduced11.4% → 12.1%
- Eurofins Scientific+32%more sharesIncreased2.6% → 3.6%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- Berkshire HathawayBRK/A · BRK/B18.1%
- AlphabetGOOG · GOOGL12.1%
- Philip Morris InternationalPM9.2%
- MastercardMA8.8%
- CIE Financi-regCFRHF8.7%
- Heineken Holding NV - AHKHHF7.6%
- NestleNSRGY · NSRGF6.1%
- Sunbelt Rentals HoldingsSUNB5.0%
- NetflixNFLX4.6%
- Martin Marietta MaterialsMLM4.6%
- UBER TechnologiesUBER4.1%
- Eurofins ScientificERFSF3.6%
- DoorDashDASH2.5%
- Pernod RicardPDRDF1.9%
- Brown FormanBF/A · BF/B0.7%
“Since”: first quarter of the current run, unbroken until today. In the details, prices are the quarter-end prices of the quarters in which it added shares, per the 13F. The manager may have bought at any price within each quarter; the SEC only publishes the value at quarter end.
Portfolio by sector
- ● No sector 28%
- ● Financials 27%
- ● Communication Services 17%
- ● Consumer Staples 10%
- ● Industrials 9%
- ● Materials 5%
- ● Consumer Discretionary 3%
How its portfolio changed (8 quarters)
Q2 2026: 85
Q2 2026: 80%
Q2 2026: 2.5%
Traded turnover: the weight it bought plus the weight it sold in the quarter, divided by two, excluding price moves. The plain “turnover” in the header does include that effect. With a free account: the full history and sectors over time.
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Investment firm, per its Form ADV of Mar 31, 2026 (medium confidence).
The data, as reported: GARDNER RUSSO & QUINN LLC (CRD 106114): Mixed client base, discretionary; 5.D assets by client type: high net worth 48%, pooled vehicles 27%, other 14%, charities 7% (of $9.4 bn); 5.F 1346 accounts, 0% non-discretionary; 5.D 1346 clients, 1143 individuals
The type comes from a rule applied to that data. If it looks wrong, tell us.
Similar managers by type and size
Same type of filer and a 13F portfolio value between a third and three times this one. It is not a comparison of what they hold.
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