Mraz, Amerine & Associates, Inc. reported 163 positions worth $496.49M for the quarter ended Sep 30, 2026, down 9.8% on the prior quarter. It opened 11 new positions, added to 53, trimmed 42 and exited 7. Its largest holding is Berkshire Hathaway Inc at 15.4% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| BN BROOKFIELD Corp | +50.3K | +10.8% | $1.83M | 3.8% |
| MKL Markel Group Inc. | +574 | +2.9% | $982.95K | 6.96% |
| XOM ExxonMobil Holdings Corp | +2,064 | – | $335.92K | 0.068% |
| APA APA Corp | +7,250 | – | $301.17K | 0.061% |
| AMTM Amentum Holdings, Inc. | +16.4K | +18.2% | $296.90K | 0.389% |
| BUR Burford Capital Ltd | +71.5K | +12.5% | $280.30K | 0.509% |
| OXY Occidental Petroleum Corp | +4,644 | +3.5% | $256.91K | 1.55% |
| SDRL SEADRILL Ltd | +4,967 | – | $221.88K | 0.045% |
| LEN-B Lennar Corp | +2,753 | +7.8% | $220.21K | 0.613% |
| WSC WillScot Holdings Corp | +12.5K | +11.4% | $215.01K | 0.422% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| FRFHF Fairfax Financial Holdings Ltd/ Can | -29.4K | -100.0% | $48.46M | Exited |
| BRK-B Berkshire Hathaway Inc | -2,558 | -1.6% | $1.27M | 15.45% |
| AGO Assured Guaranty Ltd | -9,888 | -100.0% | $792.62K | Exited |
| CABO Cable One, Inc. | -6,855 | -100.0% | $364.08K | Exited |
| CACC Credit Acceptance Corp | -639 | -7.6% | $339.31K | 0.827% |
| MSFT Microsoft Corp | -530 | -3.0% | $271.84K | 1.77% |
| SYY Sysco Corp | -3,000 | -100.0% | $250.74K | Exited |
| PG PROCTER & GAMBLE Co | -1,557 | -100.0% | $228.32K | Exited |
| ROK Rockwell Automation, Inc | -419 | -100.0% | $207.44K | Exited |
| WTM White Mountains Insurance Group Ltd | -71 | -0.3% | $142.46K | 8.95% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| XOM ExxonMobil Holdings Corp | +2,064 | $335.92K | 0.068% |
| APA APA Corp | +7,250 | $301.17K | 0.061% |
| SDRL SEADRILL Ltd | +4,967 | $221.88K | 0.045% |
| PM Philip Morris International Inc. | +1,085 | $207.04K | 0.042% |
| MET Metlife Inc | +2,174 | $204.70K | 0.041% |
| JPM Jpmorgan Chase & Co | +610 | $201.92K | 0.041% |
| INCY Incyte Corp | +1,660 | $201.44K | 0.041% |
| UNP Union Pacific Corp | +735 | $200.11K | 0.04% |
| SBSW Sibanye Stillwater Ltd | +10.7K | $109.25K | 0.022% |
| FRMI Fermi Inc. | +25.6K | $107.78K | 0.022% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| FRFHF Fairfax Financial Holdings Ltd/ Can | -29.4K | $48.46M | 8.8% |
| AGO Assured Guaranty Ltd | -9,888 | $792.62K | 0.144% |
| CABO Cable One, Inc. | -6,855 | $364.08K | 0.066% |
| SYY Sysco Corp | -3,000 | $250.74K | 0.046% |
| PG PROCTER & GAMBLE Co | -1,557 | $228.32K | 0.041% |
| ROK Rockwell Automation, Inc | -419 | $207.44K | 0.038% |
| RDI Reading International Inc | -18.9K | $24.13K | <0.01% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | BRK-B Berkshire Hathaway Inc | Financial Services | 154.0K | $76.68M | 15.45% | -2,558 | -1.6% | Reduced | 0.01% |
| 2 | WTM White Mountains Insurance Group Ltd | Financial Services | 22.1K | $44.44M | 8.95% | -71 | -0.3% | Reduced | 0.91% |
| 3 | WRB Berkley W R Corp | Financial Services | 638.5K | $43.13M | 8.69% | +2,793 | +0.4% | Added | 0.16% |
| 4 | MKL Markel Group Inc. | Financial Services | 20.2K | $34.56M | 6.96% | +574 | +2.9% | Added | 0.16% |
| 5 | JEF Jefferies Financial Group Inc. | Financial Services | 619.9K | $28.35M | 5.71% | +2,795 | +0.5% | Added | 0.27% |
| 6 | L Loews Corp | Financial Services | 256.8K | $26.81M | 5.4% | +910 | +0.4% | Added | 0.13% |
| 7 | BN BROOKFIELD Corp | Financial Services | 517.0K | $18.85M | 3.8% | +50.3K | +10.8% | Added | 0.02% |
| 8 | CVE Cenovus Energy Inc. | Energy | 367.8K | $11.43M | 2.3% | +844 | +0.2% | Added | 0.02% |
| 9 | CNQ CANADIAN NATURAL RESOURCES Ltd | Energy | 237.7K | $11.19M | 2.25% | +1,395 | +0.6% | Added | 0.01% |
| 10 | MSFT Microsoft Corp | Technology | 17.1K | $8.76M | 1.77% | -530 | -3.0% | Reduced | 0% |
| 11 | OXY Occidental Petroleum Corp | Energy | 139.1K | $7.70M | 1.55% | +4,644 | +3.5% | Added | 0.01% |
| 12 | JNJ Johnson & Johnson | Healthcare | 28.0K | $7.41M | 1.49% | +96 | +0.3% | Added | 0% |
| 13 | SLB Slb Limited | Energy | 129.0K | $6.29M | 1.27% | +4,200 | +3.4% | Added | 0.01% |
| 14 | UHAL-B U-Haul Holding Co | Consumer Discretionary | 116.0K | $6.13M | 1.23% | -199 | -0.2% | Reduced | 0.06% |
| 15 | AR ANTERO RESOURCES Corp | Energy | 164.0K | $5.47M | 1.1% | +1,850 | +1.1% | Added | 0.05% |
Tip. Select a row to see that position’s full history at Mraz, Amerine & Associates.
As of its Q3 2026 13F filing, Mraz, Amerine & Associates, Inc.’s five largest positions were Berkshire Hathaway Inc (BRK-B) at 15.4%, White Mountains Insurance Group Ltd (WTM) at 9.0%, Berkley W R Corp (WRB) at 8.7%, Markel Group Inc. (MKL) at 7.0%, Jefferies Financial Group Inc. (JEF) at 5.7% of the reported portfolio.
Mraz, Amerine & Associates, Inc. reported a 13F portfolio worth $496.49M across 163 positions for Q3 2026. That is down 9.8% from the previous quarter.
Its largest purchases by value were BROOKFIELD Corp ($1.83M), Markel Group Inc. ($982.95K), ExxonMobil Holdings Corp ($335.92K). It opened 11 new positions.
Its largest sales by value were Fairfax Financial Holdings Ltd/ Can ($48.46M), Berkshire Hathaway Inc ($1.27M), Assured Guaranty Ltd ($792.62K). It exited 7 positions entirely.
From the Form 13F-HR reports Mraz, Amerine & Associates, Inc. files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.