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ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|
Rockwood Research
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Markel Group

Conglomerate
Manager
Tom Gayner
Quarter
Q2 2026
13F value
$13.13B
Positions
130
CIK
0001096343
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Alphabet IncGOOGHISTORY7.40%—
Berkshire Hathaway Inc DelBRK-AHISTORY6.35%—
Berkshire Hathaway Inc DelBRK-BHISTORY5.84%—
Deere & CoDEHISTORY4.24%—
Brookfield CorpBNHISTORY4.24%—
Amazon Com IncAMZNHISTORY3.69%—
Analog Devices IncADIHISTORY3.02%(2.3%)
Goldman Sachs Group IncGSHISTORY2.77%—
Apple IncAAPLHISTORY2.70%—
Caterpillar IncCATHISTORY2.67%—
Visa IncVHISTORY2.65%+1.0%
Home Depot IncHDHISTORY2.48%+0.3%
Watsco IncWSOHISTORY1.90%+2.7%
Texas Instrs IncTXNHISTORY1.64%—
Blackrock IncBLKHISTORY1.61%—
Alphabet IncGOOGLHISTORY1.56%—
Microsoft CorpMSFTHISTORY1.53%—
Disney Walt CoDISHISTORY1.49%—
American Express CoAXPHISTORY1.26%—
Lowes Cos IncLOWHISTORY1.26%+1.8%
Progressive CorpPGRHISTORY1.25%—
Franco Nev CorpFNVHISTORY1.23%+9.2%
LPL Finl Hldgs IncLPLAHISTORY1.20%—
Johnson & JohnsonJNJHISTORY1.18%—
Blackstone IncBXHISTORY1.10%—
Rli CorpRLIHISTORY1.08%—
General Dynamics CorpGDHISTORY1.05%—
Novo-Nordisk A SNVOHISTORY1.05%—
KKR & Co IncKKRHISTORY1.01%—
Meta Platforms IncMETAHISTORY1.00%(5.7%)
Schwab Charles CorpSCHWHISTORY0.98%+0.8%
Marsh & Mclennan Cos IncMRSHHISTORY0.97%—
Apollo Global Mgmt IncAPOHISTORY0.91%—
Archer Daniels Midland CoADMHISTORY0.88%—
Linde PLCLINHISTORY0.85%+5.4%
Diageo PLCDEOHISTORY0.84%—
Mastercard IncorporatedMAHISTORY0.81%—
Dollar Gen CorpDGHISTORY0.76%—
Brookfield Asset Managmt LTDBAMHISTORY0.75%—
Heico Corp NewHEI-AHISTORY0.75%—
Moodys CorpMCOHISTORY0.74%—
Old Dominion Freight Line InODFLHISTORY0.71%—
Norfolk Southn CorpNSCHISTORY0.68%—
Illinois Tool WKS IncITWHISTORY0.67%—
JPMorgan Chase & CoJPMHISTORY0.63%—
NVR IncNVRHISTORY0.63%+0.1%
MSCI IncMSCIHISTORY0.61%—
Rockwell Automation IncROKHISTORY0.58%—
Ecolab IncECLHISTORY0.58%—
Sunbelt Rentals Holdings IncSUNBHISTORY0.56%+1.1%
Starbucks CorpSBUXHISTORY0.49%—
Rollins IncROLHISTORY0.48%+1.2%
Hanover Ins Group IncTHGHISTORY0.46%—
Investors Title Co NCITICHISTORY0.44%—
Carlyle Group IncCGHISTORY0.43%—
Tyson Foods IncTSNHISTORY0.40%+2.7%
S&P Global IncSPGIHISTORY0.37%—
AON PLCAONHISTORY0.34%—
Union Pac CorpUNPHISTORY0.33%+7.2%
Ferguson Enterprises IncFERGHISTORY0.33%+5.6%
RTX CorporationRTXHISTORY0.32%—
Cisco Sys IncCSCOHISTORY0.32%—
Mercadolibre IncMELIHISTORY0.31%+340.4%
Yum Brands IncYUMHISTORY0.30%—
Marriott Intl Inc NewMARHISTORY0.28%+6.1%
Allstate CorpALLHISTORY0.28%—
Thermo Fisher Scientific IncTMOHISTORY0.28%+8.9%
Costco Wholesale CorporationCOSTHISTORY0.28%—
Hagerty IncHGTYHISTORY0.27%—
Price T Rowe Group IncTROWHISTORY0.27%—
United Rentals IncURIHISTORY0.27%—
Airbnb IncABNBHISTORY0.26%—
Lockheed Martin CorpLMTHISTORY0.25%—
HCA Healthcare IncHCAHISTORY0.25%+2.3%
Sherwin Williams CoSHWHISTORY0.25%—
Factset Resh Sys IncFDSHISTORY0.24%—
Lamar Advertising CoLAMRHISTORY0.23%—
Verisk Analytics IncVRSKHISTORY0.21%—
CSX CorpCSXHISTORY0.21%+10.3%
Applied Matls IncAMATHISTORY0.20%—
Air Products And Chemicals IAPDHISTORY0.20%+17.2%
Comfort Sys USA IncFIXHISTORY0.20%—
Crown Hldgs IncCCKHISTORY0.19%—
Brown Forman CorpBF-AHISTORY0.18%—
Renaissancere Hldgs LTDRNRHISTORY0.17%—
Enterprise Prods Partners LEPDHISTORY0.16%+181.7%
Philip Morris Intl IncPMHISTORY0.16%—
Accenture PLC IrelandACNHISTORY0.15%—
Comcast Corp NewCMCSAHISTORY0.15%(16.6%)
Hexcel Corp NewHXLHISTORY0.14%—
Nike IncNKEHISTORY0.14%—
Capital One Finl CorpCOFHISTORY0.14%—
Bank New York Mellon CorpBNYHISTORY0.14%—
Carrier Global CorporationCARRHISTORY0.13%—
Wells Fargo & CoWFCHISTORY0.13%—
Sei Invts CoSEICHISTORY0.12%—
Paychex IncPAYXHISTORY0.11%—
Hershey CoHSYHISTORY0.10%—
Pepsico IncPEPHISTORY0.10%—
Brown Forman CorpBF-BHISTORY0.10%—
Spotify Technology S ASPOTHISTORY0.09%—
Shopify IncSHOPHISTORY0.09%—
Equifax IncEFXHISTORY0.09%—
CME Group IncCMEHISTORY0.08%—
Cboe Global Mkts IncCBOEHISTORY0.08%—
Uber Technologies IncUBERHISTORY0.08%—
Otis Worldwide CorpOTISHISTORY0.07%+16.6%
Iqvia Hldgs IncIQVHISTORY0.07%—
Huntington Ingalls Inds IncHIIHISTORY0.06%—
Exxon Mobil CorpXOMHISTORY0.06%+19.4%
Insperity IncNSPHISTORY0.06%—
Carmax IncKMXHISTORY0.05%—
Sony Group CorpSONYHISTORY0.05%—
Canadian Natl Ry CoCNIHISTORY0.05%—
Canadian Pacific Kansas CityCPHISTORY0.05%+22.7%
Graham Hldgs CoGHCHISTORY0.05%—
Eastman Chem CoEMNHISTORY0.04%—
Zoetis IncZTSHISTORY0.04%NEW
Brunswick CorpBCHISTORY0.03%—
Berkley W R CorpWRBHISTORY0.03%—
MGM Resorts InternationalMGMHISTORY0.03%—
Acuity IncAYIHISTORY0.03%—
Intercontinental Exchange InICEHISTORY0.03%—
Eagle Matls IncEXPHISTORY0.03%—
Weyerhaeuser CoWYHISTORY0.02%+585.7%
Netflix Inc.NFLXHISTORY0.02%NEW
Sysco CorpSYYHISTORY0.02%—
Dominos Pizza IncDPZHISTORY0.01%—
Brown & Brown IncBROHISTORY0.01%—
Ufp Industries IncUFPIHISTORY<0.01%NEW
Positions are from the latest 13F-HR (period end 2026-06-30). Weights are calculated: position value ÷ the 13F book. Rows marked Off-13F are >5% stakes disclosed on a Schedule 13D/13G dated after the latest 13F; they report shares and percent of class but no dollar value. Chg Shares and % Chg compare with the adjacent prior quarter's 13F only. % Out is either calculated (position shares ÷ issuer shares outstanding from the issuer's XBRL cover page; weighted-average basic shares as a fallback) or reported (percent of class on a Schedule 13D/13G newer than the 13F period) — hover a value for its source and date. Unavailable figures show “—”, never an estimate. Methodology