One name, Berkshire Hathaway Inc (BRK-A), is 10.16% of what Christopher Bloomstran's Semper Augustus Investments Group reports for 2026 Q2, according to the 13F-HR filed with the SEC on August 14, 2026. The stake is 120 shares worth about $89.9M, the 3rd largest of 50 stock positions. Christopher Bloomstran added 3% to the share count in 2026 Q2.
What did the 2026 Q2 filing report for BRK-A?
As of June 30, 2026, from the 13F-HR filed August 14, 2026.
| Value | |
|---|---|
| Portfolio weight | 10.16% |
| Shares | 120 |
| Reported value | $89.9M |
| Rank in portfolio | 3rd of 50 |
| Largest holding | BRK-B at 15.45% |
| Top three holdings | 36.19% of the book |
| Change this quarter | +3% shares |
How concentrated is Christopher Bloomstran in BRK-A?
BRK-A at 10.16% is 5.1 times the average stock position in the Christopher Bloomstran portfolio, which is 2%. The largest holding is BRK-B at 15.45%. The three largest stocks together are 36.19% of the reported book. A quarter earlier BRK-A was 9.95% of the book.
Where does BRK-A sit in the Christopher Bloomstran portfolio?
BRK-A ranks 3rd of 50 stock positions in the Christopher Bloomstran portfolio at 10.16%, above the fund's average stock position of 2%. The BRK-A addition was the 12th largest of the quarter's 33 position changes by percent change to portfolio. Across the 2026 Q2 portfolio, Christopher Bloomstran reported 50 stock positions, with 7 opened and 1 closed. The total portfolio value is about $884.6M, up 6% from the prior quarter.
How long has Christopher Bloomstran held BRK-A?
Christopher Bloomstran has held BRK-A since at least the quarter ended June 30, 2013, the start of the filings we track. The weight peaked at 19.17% in 2017 Q4. The share count was unchanged the quarter before. Every reported trade is on the Christopher Bloomstran BRK-A trade history page.
Did other funds buy or sell BRK-A in 2026 Q2?
Among the other tracked funds that had filed for 2026 Q2 as of August 14, 2026, 12 hold BRK-A. The largest buyer of BRK-A this quarter was Bruce Berkowitz. The largest sellers were Thomas Russo, Christopher Davis and Francois Rochon. Every tracked holder of BRK-A is on the BRK-A ownership page.
FAQ
What share of the Christopher Bloomstran portfolio is BRK-A?
BRK-A is 10.16% of the Christopher Bloomstran portfolio as of 2026 Q2, the 3rd largest of 50 stock positions.
What is the BRK-A stake of Christopher Bloomstran worth?
Christopher Bloomstran holds 120 shares of BRK-A, worth about $89.9M at June 30, 2026 prices, 10.16% of the reported portfolio.
What are the largest holdings of Christopher Bloomstran?
The largest stock positions of Christopher Bloomstran as of 2026 Q2 are BRK-B (15.45%), ALK (10.58%) and BRK-A (10.16%), together 36.19% of the book.
Did Christopher Bloomstran's Semper Augustus Investments Group change its BRK-A position in 2026 Q2?
Christopher Bloomstran added 3% to the share count in 2026 Q2.