Check Capital Management Inc. In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 4, 2026), Check Capital Management Inc. reported 49 stock positions worth $1.6 billion . Its top holding was Berkshire Hathaway Class B (BRK.B) at 32.7% of the portfolio, followed by Google Class C (GOOG, 12.2% ) and Brookfield (BN, 10.9% ). Compared with Q4 2025, it sold out of 1, added to 16 and reduced 15. The biggest buy was Amazon.com (AMZN, shares +5763% ) and the biggest sale Brookfield (BN, shares −0% ).
Location COSTA MESA, CA
CIK 0001032814
Portfolio Value $1.6B (Q1 2026) Holdings 49 stocks · $1.6B Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q4 2025 BRK.B Berkshire Hathaway Inc. Class B 1,108,390 $531.1M Add +0.5% GOOG Google LLC Class C filed as ALPHABET INC CL C 690,399 $198.0M Reduce -1.9% BN Brookfield Corp. 4,379,938 $177.3M Reduce -0.2% MKL Markel Group Inc. 76,886 $147.2M Reduce -0.6% AER Aercap Holdings NV 817,655 $112.2M Reduce -1.2% FCNCA First Citizens Bcshs Class A 44,068 $83.1M Add +3.0% SIRI Sirius XM Holdings Inc. 2,942,595 $67.9M Add +2.0% LKQ LKQ Corp. 1,917,106 $56.3M Add +23.0% AMZN Amazon.com Inc. 204,087 $42.5M Add +5762.9% DIS The Walt Disney Co. filed as DISNEY WALT CO 438,533 $42.3M Add +0.4% HSY The Hershey Co. 192,310 $40.0M Add +0.8% Cimpress 471,466 $34.4M Add +15.9% JEF Jefferies Financial Group Inc. 680,171 $28.1M Add +50.3% BRK.A Berkshire Hathaway Inc. Class A 29 $20.8M No change W Wayfair Inc. Class A 167,948 $12.6M Add +0.5% AAPL Apple Inc. 23,073 $5.9M Reduce -9.1% BH.A Biglari Holdings Inc. Class A 1,578 $2.7M Reduce -28.3% MSFT Microsoft Corp. 6,079 $2.3M Reduce -0.8% AMGN Amgen Inc. 3,885 $1.4M No change CAT Caterpillar Inc. 1,717 $1.2M No change GOOGLE LLC-CL A 3,683 $1.1M Add +1.7% TRUP Trupanion Inc. 40,695 $1.0M Reduce -0.2% GS Goldman Sachs Group Inc. 1,230 $1.0M No change TSLA Tesla Inc. 2,500 $929K No change GE General Electric Company filed as GE AEROSPACE 2,990 $848K Reduce -7.7% GEV GE Vernova Inc. 901 $786K Reduce -8.8% GLW Corning Inc. 5,050 $687K No change RTX RTX Corp. 3,489 $673K No change SPY SS SPDR S&P 500 ETF Trust-US 965 $628K No change XT Ishar Fture Exp Tech ETF-Usd 8,800 $600K No change BAC Bank of America Corp. filed as BANK AMERICA CORP 12,032 $587K Reduce -84.9% BAM Brookfield Asset Mgmt-A 12,954 $576K Add +1.3% FRFHF Fairfax Financial Hldgs Ltd. 219 $372K Add +64.7% NVDA Nvidia Corp. 2,117 $369K No change FAST Fastenal Co. 7,920 $367K No change FDX FedEx Corp. 993 $354K Reduce -55.6% WFC Wells Fargo & Co. 4,413 $351K Reduce -12.4% UBER Uber Technologies Inc. 4,860 $350K No change COP Conocophillips 2,534 $334K No change UNH Unitedhealth Group Inc. 1,232 $333K Add +71.3% BIGLARI HLDGS INC 967 $319K Reduce -27.8% BA The Boeing Co. 1,445 $288K Add +16.1% ITW Illinois Tool Works 1,100 $286K No change SCHG Schwab US Large-Cap Growth 9,800 $285K No change JPM JPMorgan Chase & Co. 956 $281K Add +0.1% CVX Chevron Corp. 1,350 $279K No change DGX Quest Diagnostics Inc. 1,300 $255K No change VZ Verizon Communications Inc. 4,800 $241K Reduce -18.1% CFG Citizens Financial Group 3,800 $228K No change
Options reported separately and not counted above: BRK.B calls ($1.8B).
Portfolio Sells Q4 2025 → Q1 2026 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2025 % Of Portfolio Change To Portfolio ▲ BN Brookfield Corp. Reduce -0.2% 10.93% −1.11 GOOG Google LLC Class C Reduce -1.9% 12.21% −0.99 MKL Markel Group Inc. Reduce -0.6% 9.07% −0.86 BAC Bank of America Corp. Reduce -84.9% 0.04% −0.23 AER Aercap Holdings NV Reduce -1.2% 6.92% −0.20 BH.A Biglari Holdings Inc. Class A Reduce -28.3% 0.17% −0.06 AAPL Apple Inc. Reduce -9.1% 0.36% −0.05 MSFT Microsoft Corp. Reduce -0.8% 0.14% −0.04 TRUP Trupanion Inc. Reduce -0.2% 0.06% −0.03 FDX FedEx Corp. Reduce -55.6% 0.02% −0.02 META Meta Platforms Inc. Class A Sold out 0.00% −0.01 GE General Electric Company Reduce -7.7% 0.05% −0.01 BIGLARI HLDGS INC Reduce -27.8% 0.02% −0.01 WFC Wells Fargo & Co. Reduce -12.4% 0.02% −0.01 VZ Verizon Communications Inc. Reduce -18.1% 0.01% +0.00 GEV GE Vernova Inc. Reduce -8.8% 0.05% +0.01
Portfolio Buys Q4 2025 → Q1 2026 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2025 % Of Portfolio Change To Portfolio ▼ AMZN Amazon.com Inc. Add +5762.9% 2.62% +2.57 SIRI Sirius XM Holdings Inc. Add +2.0% 4.19% +0.74 LKQ LKQ Corp. Add +23.0% 3.47% +0.66 Cimpress Add +15.9% 2.12% +0.50 HSY The Hershey Co. Add +0.8% 2.46% +0.39 JEF Jefferies Financial Group Inc. Add +50.3% 1.73% +0.05 FRFHF Fairfax Financial Hldgs Ltd. Add +64.7% 0.02% +0.01 UNH Unitedhealth Group Inc. Add +71.3% 0.02% +0.01 BA The Boeing Co. Add +16.1% 0.02% +0.00 JPM JPMorgan Chase & Co. Add +0.1% 0.02% −0.00 GOOGLE LLC-CL A Add +1.7% 0.07% −0.00 BAM Brookfield Asset Mgmt-A Add +1.3% 0.04% −0.00 W Wayfair Inc. Class A Add +0.5% 0.78% −0.22 DIS The Walt Disney Co. Add +0.4% 2.61% −0.36 FCNCA First Citizens Bcshs Class A Add +3.0% 5.12% −0.37 BRK.B Berkshire Hathaway Inc. Class B Add +0.5% 32.75% −0.39
Options Activity Q4 2025 → Q1 2026 Security Type Change vs Q4 2025 Underlying Shares Value ▼ BRK.B Berkshire Hathaway Inc. Class B call Add +7.8% 3,785,700 $1.8B
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 Amended 52 $1.8B BRK.B, GOOG, BN, MKL, AER Q1 2026 49 $1.6B BRK.B, GOOG, BN, MKL, AER Q4 2025 50 $1.7B BRK.B, GOOG, BN, MKL, AER Q3 2025 50 $1.6B BRK.B, BN, GOOG, MKL, AER Q2 2025 49 $1.5B BRK.B, BN, MKL, GOOG, AER Q1 2025 50 $1.5B BRK.B, BN, MKL, GOOG, AER Q4 2024 53 $1.5B BRK.B, BN, GOOG, MKL, AER Q3 2024 50 $1.4B BRK.B, BN, GOOG, MKL, AER Q2 2024 49 $1.4B BRK.B, GOOG, BN, MKL, AER Q1 2024 49 $1.4B BRK.B, BN, MKL, GOOG, AER