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RKWD
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
…

Ruane Cunniff

Long Only
Manager
Ruane Cunniff
Quarter
Q2 2026
13F value
$6.43B
Positions
54
CIK
0001720792
SHARE:XLINKEDINEMAIL
Alphabet IncGOOGLHISTORY11.09%(5.8%)
Taiwan Semiconductor ManufacTSMHISTORY8.71%(3.0%)
Liberty Media Corp DelFWONKHISTORY7.73%(2.5%)
Schwab Charles CorpSCHWHISTORY6.56%(3.0%)
Capital One Finl CorpCOFHISTORY6.11%(3.1%)
Elevance Health Inc FormerlyELVHISTORY5.89%(29.4%)
Icon Pub LTD CoICLRHISTORY5.54%+25.3%
Alphabet IncGOOGHISTORY5.08%(2.7%)
Sunbelt Rentals Holdings IncSUNBHISTORY4.96%(22.4%)
Intercontinental Exchange InICEHISTORY4.90%(3.0%)
Msa Safety IncMSAHISTORY4.68%(3.1%)
Unitedhealth Group IncUNHHISTORY4.56%(3.1%)
Bio-Techne CorpTECHHISTORY3.68%(1.3%)
Roper Technologies IncROPHISTORY3.55%NEW
Align Technology IncALGNHISTORY3.07%(2.9%)
Sap SESAPHISTORY2.96%+64.9%
Zoetis IncZTSHISTORY2.63%(3.0%)
Berkshire Hathaway Inc DelBRK-BHISTORY2.34%(3.1%)
Accenture PLC IrelandACNHISTORY1.75%(2.8%)
Meta Platforms IncMETAHISTORY1.35%(23.3%)
Berkshire Hathaway Inc DelBRK-AHISTORY1.20%(6.4%)
Liberty Media Corp DelFWONAHISTORY0.95%(3.9%)
Amentum Holdings IncAMTMHISTORY0.17%(66.9%)
Liberty Broadband Corp530307305HISTORY0.16%(73.9%)
Credit Accep Corp MichCACCHISTORY0.05%(96.4%)
Micron Technology IncMUHISTORY0.04%—
Liberty Broadband Corp530307107HISTORY0.04%(67.0%)
Liberty Cap CorpGLIBKHISTORY0.04%(77.5%)
Equitable Hldgs IncEQHHISTORY0.03%(0.4%)
Group 1 Automotive IncGPIHISTORY0.02%+21.7%
Vanguard Index FDSVTIHISTORY0.02%+8.2%
Lithia Mtrs IncLADHISTORY0.01%(1.8%)
Jacobs Solutions IncJHISTORY0.01%(0.7%)
Liberty Cap CorpGLIBAHISTORY0.01%(77.9%)
Netflix Inc.NFLXHISTORY0.01%—
Vanguard Star FDSVXUSHISTORY0.01%+8.6%
Globus Med IncGMEDHISTORY0.01%—
Smith Douglas Homes CorpSDHCHISTORY0.01%+88.2%
Copa Holdings SACPAHISTORY0.01%—
Kaspi KZ JSCKSPIHISTORY0.01%(3.6%)
American Express CoAXPHISTORY<0.01%—
Apple IncAAPLHISTORY<0.01%—
Microsoft CorpMSFTHISTORY<0.01%—
Sinclair IncSBGIHISTORY<0.01%—
Dollar Gen CorpDGHISTORY<0.01%—
Ferguson Enterprises IncFERGHISTORY<0.01%—
Vanguard Intl Equity Index FVTHISTORY<0.01%NEW
Ataibeckley Inc04650F101HISTORY<0.01%—
Charter Communications IncCHTRHISTORY<0.01%(99.0%)
Hilton Grand Vacations IncHGVHISTORY<0.01%NEW
S&P Global IncSPGIHISTORY<0.01%—
Bank Of Amer CorpBACHISTORY<0.01%NEW
Stellantis N.VSTLAHISTORY<0.01%—
Rimini STR Inc DelRMNIHISTORY<0.01%(4.5%)
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