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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
…

Semper Augustus

Long Only
Manager
Christopher Bloomstran
Quarter
Q2 2026
13F value
$884.6M
Positions
50
CIK
0001115373
SHARE:XLINKEDINEMAIL
Berkshire Hathaway Inc DelBRK-BHISTORY15.45%+8.0%
Alaska Air Group IncALKHISTORY10.58%+5.8%
Berkshire Hathaway Inc DelBRK-AHISTORY10.16%+3.4%
Dollar Gen CorpDGHISTORY8.66%+2.6%
Deckers Outdoor CorpDECKHISTORY7.52%+1.4%
Dollar Tree IncDLTRHISTORY7.25%+3.2%
Builders Firstsource IncBLDRHISTORY5.60%+142.6%
Olin CorpOLNHISTORY4.83%+6.1%
Newmont CorpNEMHISTORY4.72%(6.7%)
Kinross Gold CorpKGCHISTORY4.14%+2.7%
Paychex IncPAYXHISTORY2.35%NEW
Five Below IncFIVEHISTORY2.15%(45.2%)
S&P Global IncSPGIHISTORY2.12%NEW
HF Sinclair CorpDINOHISTORY1.99%(30.1%)
Disney Walt CoDISHISTORY1.75%+5.3%
Cognizant Technology SolutioCTSHHISTORY1.65%NEW
Valero Energy CorpVLOHISTORY1.12%(14.0%)
Cummins IncCMIHISTORY1.05%(67.2%)
Exxon Mobil CorpXOMHISTORY0.88%(0.6%)
Paramount Skydance CorpSKYDHISTORY0.72%(0.6%)
Travelers Companies IncTRVHISTORY0.71%—
Merck & Co IncMRKHISTORY0.65%—
Equinor ASAEQNRHISTORY0.57%(8.4%)
Starbucks CorpSBUXHISTORY0.53%(81.8%)
GE AerospaceGEHISTORY0.40%—
Costco Wholesale CorporationCOSTHISTORY0.35%(0.4%)
GE Vernova IncGEVHISTORY0.26%—
NXP Semiconductors N VNXPIHISTORY0.24%(41.0%)
World Gold TRGLDMHISTORY0.22%+0.4%
Seacor Marine Hldgs IncSMHIHISTORY0.18%—
Apple IncAAPLHISTORY0.15%+12.1%
Coca Cola CoKOHISTORY0.14%—
American Express CoAXPHISTORY0.13%(3.6%)
Chevron CorporationCVXHISTORY0.11%—
iShares TRSGOVHISTORY0.10%(13.6%)
Alphabet IncGOOGHISTORY0.10%—
Sprott Asset Management LPPHYSHISTORY0.08%—
Shell PLCSHELHISTORY0.04%—
Mastercard IncorporatedMAHISTORY0.04%—
Synchrony FinancialSYFHISTORY0.04%—
Philip Morris Intl IncPMHISTORY0.04%—
GE Healthcare Technologies IGEHCHISTORY0.03%—
Alphabet IncGOOGLHISTORY0.03%—
Phillips 66PSXHISTORY0.03%—
Microsoft CorpMSFTHISTORY0.03%NEW
Abrdn Silver ETF TrustSIVRHISTORY0.03%—
Microchip Technology Inc.MCHPHISTORY0.02%NEW
Netflix Inc.NFLXHISTORY0.02%—
Sunbelt Rentals Holdings IncSUNBHISTORY0.02%NEW
Johnson & JohnsonJNJHISTORY0.02%NEW
Positions are from the latest 13F-HR (period end 2026-06-30). Weights are calculated: position value ÷ the 13F book. Schedule 13D/13G stakes are merged in when present (shares and percent of class, 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