In Q2 2026, Semper Augustus held 48 US-listed stocks worth $885m. Its biggest move was adding to Builders Firstsource (143% more shares, now 5.6%), followed by adding to Alaska Air Group (6% more shares, now 11%). It started 7 new positions and sold out of 1. Its largest holding is Berkshire Hathaway at 26%.
Q2 2026, filed 14 Aug 2026 (filing): 7 new, 11 added to, 13 trimmed, 1 sold out. Select a row to see it over time.How this works
Changes compare share counts with Q1 2026, adjusted for stock splits. Share classes of the same company are combined. Values are at quarter-end prices.
13F holdings with change from the previous quarter
Each bar is one 13F. Select a bar or press play to see that quarter’s 12 largest positions.How this works
Bars are split by share of the US portfolio: the six biggest holdings over the period in colour, everything else in grey. The last eight quarters are shown in full, earlier years at year end.
2013
2015
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2019
2021
2023
Q4 ’24
Q2 ’25
Q4 ’25
Q2 ’26
BRK.BDGNEMEXMOCKGCOLNEverything else
2013: Berkshire Hathaway 24.3%, Dollar General 0.0%, Newmont 4.0%, Exxon Mobil 16.4%, Kinross Gold 0.0%, Olin 0.0%; 2014: Berkshire Hathaway 31.3%, Dollar General 0.0%, Newmont 0.0%, Exxon Mobil 15.1%, Kinross Gold 0.0%, Olin 0.0%; 2015: Berkshire Hathaway 29.3%, Dollar General 0.0%, Newmont 2.5%, Exxon Mobil 14.0%, Kinross Gold 0.0%, Olin 0.0%; 2016: Berkshire Hathaway 37.8%, Dollar General 0.0%, Newmont 5.0%, Exxon Mobil 7.1%, Kinross Gold 0.0%, Olin 0.0%; 2017: Berkshire Hathaway 45.7%, Dollar General 4.2%, Newmont 5.4%, Exxon Mobil 6.7%, Kinross Gold 0.0%, Olin 0.0%; 2018: Berkshire Hathaway 40.5%, Dollar General 3.9%, Newmont 3.9%, Exxon Mobil 4.9%, Kinross Gold 0.0%, Olin 0.0%; 2019: Berkshire Hathaway 38.2%, Dollar General 4.5%, Newmont 6.8%, Exxon Mobil 4.3%, Kinross Gold 2.8%, Olin 0.0%; 2020: Berkshire Hathaway 33.2%, Dollar General 0.0%, Newmont 8.5%, Exxon Mobil 2.9%, Kinross Gold 4.0%, Olin 7.8%; 2021: Berkshire Hathaway 31.8%, Dollar General 0.0%, Newmont 7.4%, Exxon Mobil 3.0%, Kinross Gold 4.3%, Olin 12.9%; 2022: Berkshire Hathaway 32.9%, Dollar General 3.0%, Newmont 5.9%, Exxon Mobil 3.1%, Kinross Gold 3.9%, Olin 9.2%; 2023: Berkshire Hathaway 31.6%, Dollar General 11.8%, Newmont 5.1%, Exxon Mobil 0.0%, Kinross Gold 5.6%, Olin 5.7%; Q3 ’24: Berkshire Hathaway 33.3%, Dollar General 12.3%, Newmont 5.9%, Exxon Mobil 0.0%, Kinross Gold 7.3%, Olin 4.3%; Q4 ’24: Berkshire Hathaway 33.9%, Dollar General 8.3%, Newmont 4.4%, Exxon Mobil 0.0%, Kinross Gold 7.6%, Olin 3.5%; Q1 ’25: Berkshire Hathaway 35.5%, Dollar General 12.9%, Newmont 5.2%, Exxon Mobil 0.0%, Kinross Gold 9.2%, Olin 2.8%; Q2 ’25: Berkshire Hathaway 28.8%, Dollar General 14.9%, Newmont 5.6%, Exxon Mobil 0.0%, Kinross Gold 6.8%, Olin 0.0%; Q3 ’25: Berkshire Hathaway 26.6%, Dollar General 11.9%, Newmont 7.1%, Exxon Mobil 0.0%, Kinross Gold 8.0%, Olin 6.0%; Q4 ’25: Berkshire Hathaway 24.5%, Dollar General 14.1%, Newmont 7.6%, Exxon Mobil 0.0%, Kinross Gold 6.8%, Olin 4.7%; Q1 ’26: Berkshire Hathaway 24.4%, Dollar General 9.2%, Newmont 6.2%, Exxon Mobil 0.0%, Kinross Gold 5.5%, Olin 7.2%; Q2 ’26: Berkshire Hathaway 25.6%, Dollar General 8.7%, Newmont 4.7%, Exxon Mobil 0.0%, Kinross Gold 4.1%, Olin 4.8%
Q1 Q2 Q3 Q4 · each quarter is that quarter’s profits times the stake reported at its end. *2026 so far: 2 quarters. Click a quarter to see its holdings.
Net income is as reported (GAAP), so it includes one-off items and, for some companies, gains or losses on investments they hold. Companies that report under IFRS (most non-US companies) or whose shares we can’t match reliably are left out; “portfolio covered” shows how much is included. Look-through earnings explained. Growth compares earnings per share over the last 12 months with the 12 months a year earlier, for holdings profitable in both.
US holdings by sector
Insurance26.3%
Consumer discretionary26.3%
Industrials16.8%
Materials13.7%
Other7.5%
Financials2.7%
Technology2.1%
Energy1.9%
Communication and media0.9%
Health care0.7%
Consumer staples0.2%
Not classified1.0%
Sectors are grouped from each company’s SEC industry code, as a share of the Q2 2026 13F.