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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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Gates Foundation Trust

Long Only
Manager
Michael Larson
Quarter
Q2 2026
13F value
$34.42B
Positions
25
CIK
0001166559
SHARE:XLINKEDINEMAIL
Weights are % of 13F book — no reported capital figure for this filer.i
Berkshire Hathaway Inc DelBRK-BHISTORY21.35%(13.8%)
Caterpillar IncCATHISTORY19.65%—
Canadian Natl Ry CoCNIHISTORY17.95%—
Waste Mgmt Inc DelWMHISTORY17.30%(3.3%)
Deere & CoDEHISTORY6.56%—
Ecolab IncECLHISTORY4.22%—
Walmart IncWMTHISTORY2.76%—
Fedex CorpFDXHISTORY2.17%—
Coca-Cola Femsa Sab DE CVKOFHISTORY1.92%—
Home Depot IncHDHISTORY1.02%NEW
Waste Connections IncWCNHISTORY0.99%—
Madison Square Grdn Sprt CorMSGSHISTORY0.69%—
Fedex Fght Hldg Co IncFDXFHISTORY0.52%NEW
Coupang IncCPNGHISTORY0.47%—
West Pharmaceutical Svsc IncWSTHISTORY0.46%—
Anheuser Busch Inbev SA NVBUDHISTORY0.41%—
Paccar IncPCARHISTORY0.35%—
Schrodinger IncSDGRHISTORY0.33%—
McDonalds CorpMCDHISTORY0.26%—
Danaher Corp DelDHRHISTORY0.21%—
Kraft Heinz CoKHCHISTORY0.17%—
Hormel Foods CorpHRLHISTORY0.15%—
On Hldg AGONONHISTORY0.05%—
Veralto CorpVLTOHISTORY0.03%—
The Mexico Fund, Inc.MXFOff-13F——
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