Check Capital Management Inc.
Check Capital Management Inc. reported 52 US-listed holdings worth $5.13 billion in its 13F for the quarter ended 30 June 2026, filed 5 August 2026. Its largest: Berkshire Hathaway Inc. Class B (30.0%), Alphabet (13.8%) and Brookfield Corporation (11.0%). Against the quarter before, it opened 5 positions, added to 47, trimmed 0 and sold out of 2.
Reported holdings$5.13B+216.3% on Q1 2026
Positions52+3 on Q1 2026
The largest ten89.7%of its reported holdings
Latest 13FQ2 2026filed 5 August 2026
Added to
The 14 largest of its 52 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.
What the fund reported holding at each quarter's end; hover a bar for the number of positions
What it did on the quarter
Opened 5Added 47Sold out 2
Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held
Opened 5
- Freeport-McMoRan Inc. FCX$488,152
- Hudbay Minerals Inc. HBM$469,366
- Lam Research Corp.$433,330
- Trekor Metals Ltd Com TGB$431,376
- Schwab Strategic Trust SCHA$404,656
Added to 47
- Berkshire Hathaway Inc. Class B BRKB+2.0 million shares · +177%
- Alphabet+1.3 million shares · +190%
- Brookfield Corporation BN+8.8 million shares · +202%
- Markel CP Hldg Co. MKL+160,741 shares · +209%
- AerCap Holdings N.V. AER+1.6 million shares · +196%
- First Citizens BancShares Inc FCNCA+88,995 shares · +202%
- Siriusxm Holdings Inc. SIRI+5.8 million shares · +198%
- Amazon.com Inc. AMZN+414,084 shares · +203%
and 39 more in the table below
Sold out of 2
- ConocoPhillips COP$334,488 last quarter
- Verizon Communications Inc. VZ$240,960 last quarter
What it holds
| Company | Shares | Value | Of its book | Change in shares |
|---|---|---|---|---|
| Berkshire Hathaway Inc. Class B BRKB | 3,074,520 | $1.54 billion | 29.99% | +1,966,130 |
| Alphabet | 2,003,281 | $707.8 million | 13.80% | +1,312,882 |
| Brookfield Corporation BN | 13,221,326 | $563.1 million | 10.98% | +8,841,388 |
| Markel CP Hldg Co. MKL | 237,627 | $464.1 million | 9.05% | +160,741 |
| AerCap Holdings N.V. AER | 2,423,601 | $353.3 million | 6.89% | +1,605,946 |
| First Citizens BancShares Inc FCNCA | 133,063 | $276.9 million | 5.40% | +88,995 |
| Siriusxm Holdings Inc. SIRI | 8,783,397 | $259.5 million | 5.06% | +5,840,802 |
| LKQ Corp. LKQ | 5,659,248 | $149.0 million | 2.90% | +3,742,142 |
| Amazon.com Inc. AMZN | 618,171 | $147.3 million | 2.87% | +414,084 |
| Cimpress | 1,417,455 | $144.2 million | 2.81% | +945,989 |
| Walt Disney Co. DIS | 1,350,522 | $130.0 million | 2.53% | +911,989 |
| Hershey Co. HSY | 615,816 | $108.0 million | 2.11% | +423,506 |
| Jefferies Financial Group Inc. JEF | 2,057,730 | $102.8 million | 2.00% | +1,377,559 |
| Berkshire Hathaway Inc. Del | 84 | $62.9 million | 1.23% | +55 |
| Wayfair Inc. W | 507,075 | $46.9 million | 0.91% | +339,127 |
| Apple Inc. AAPL | 46,878 | $13.6 million | 0.26% | +23,805 |
| Fairfax Finl Hldgs Ltd Sub VTG FRFHF | 5,937 | $9.8 million | 0.19% | +5,718 |
| Biglari Hldgs Inc. BHA | 3,124 | $6.6 million | 0.13% | +1,546 |
| Microsoft Corp. MSFT | 12,458 | $4.6 million | 0.09% | +6,379 |
| Caterpillar Inc. CAT | 3,434 | $3.7 million | 0.07% | +1,717 |
| Amgen Inc. AMGN | 7,770 | $2.8 million | 0.05% | +3,885 |
| Google Inc. Class A | 7,366 | $2.6 million | 0.05% | +3,683 |
| Corning Inc. GLW | 10,100 | $2.6 million | 0.05% | +5,050 |
| Goldman Sachs Group Inc. GS | 2,460 | $2.5 million | 0.05% | +1,230 |
| Ge Aerospace | 5,980 | $2.2 million | 0.04% | +2,990 |
| GE Vernova Inc. GEV | 1,802 | $2.1 million | 0.04% | +901 |
| Trupanion, Inc. TRUP | 80,150 | $2.0 million | 0.04% | +39,455 |
| Tesla, Inc. TSLA | 4,700 | $2.0 million | 0.04% | +2,200 |
| iShares Trust XT | 17,600 | $1.5 million | 0.03% | +8,800 |
| SPDR S&P 500 SPY | 1,930 | $1.4 million | 0.03% | +965 |
| Bank of America Corp. BAC | 24,076 | $1.4 million | 0.03% | +12,044 |
| RTX Corp. RTX | 6,978 | $1.3 million | 0.03% | +3,489 |
| NVIDIA Corp. NVDA | 6,154 | $1.2 million | 0.02% | +4,037 |
| Brookfield Asset Management Ltd. BAM | 26,258 | $1.2 million | 0.02% | +13,304 |
| UnitedHealth Group Inc. UNH | 2,244 | $932,674 | 0.02% | +1,012 |
| Biglari Holdings | 1,934 | $823,942 | 0.02% | +967 |
| Fastenal Co. FAST | 15,840 | $760,796 | 0.01% | +7,920 |
| Wells Fargo & Company WFC | 8,966 | $740,950 | 0.01% | +4,553 |
| Uber Technologies, Inc. UBER | 9,730 | $702,116 | 0.01% | +4,870 |
| Schwab Strategic Trust SCHG | 19,600 | $663,264 | 0.01% | +9,800 |
| JPMorgan Chase & Co. JPM | 1,914 | $626,558 | 0.01% | +958 |
| Boeing Co. BA | 2,890 | $625,598 | 0.01% | +1,445 |
| FedEx Corp. FDX | 1,922 | $601,836 | 0.01% | +929 |
| Illinois Tool Works Inc. ITW | 2,200 | $595,034 | 0.01% | +1,100 |
| Quest Diagnostics Inc. DGX | 2,600 | $551,072 | 0.01% | +1,300 |
| Citizens Financial Group Inc. CFG | 7,600 | $532,532 | 0.01% | +3,800 |
| Freeport-McMoRan Inc. FCX | 7,762 | $488,152 | 0.01% | new |
| Hudbay Minerals Inc. HBM | 19,880 | $469,366 | 0.01% | new |
| Lam Research Corp. | 1,000 | $433,330 | 0.01% | new |
| Trekor Metals Ltd Com TGB | 62,700 | $431,376 | 0.01% | new |
| Chevron Corp. CVX | 2,500 | $414,400 | 0.01% | +1,150 |
| Schwab Strategic Trust SCHA | 11,200 | $404,656 | 0.01% | new |
Every US-listed position in the fund's 13F for the quarter ended 30 June 2026, by the value it reported.
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Change is shares against its 13F for the quarter before; the 2 it sold out of are in the box above.Options it reported
| Company | Option | Shares under the options | Value of those shares |
|---|---|---|---|
| Berkshire Hathaway Inc. Class B BRKB | Calls | 12,051,100 | $6.03 billion |
1 option lines. A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost; they are not counted in the holdings above.