Steven Check — Check Capital ManagementSuperinvestor
About Steven Check — Check Capital Management’s 13F portfolio
Steven Check — Check Capital Management is an institutional investment manager that discloses its US-listed holdings each quarter through an SEC Form 13F filing. As of , Steven Check — Check Capital Management reported $1.6B across 49 US-listed positions (). Its largest position is Berkshire Hathaway (BRK/B) at 33% of the reported book, and its ten biggest holdings make up 90% of the portfolio. Browse every manager in the fund managers directory, or see the legendary investors we track on the superinvestors page.
| # | Stock | Price | % of portfolio | Shares | Value |
|---|---|---|---|---|---|
| 1 |  BRK/B Berkshire Hathaway | — — | 33% | 1.1M | $531.1M |
| 2 |  GOOGL Alphabet | — — | 12% | 690K | $198.0M |
| 3 |  BN Brookfield Corp. | — — | 11% | 4.4M | $177.3M |
| 4 |  MKL Markel | — — | 9.1% | 77K | $147.2M |
| 5 |  AER AerCap Holdings | — — | 6.9% | 818K | $112.2M |
| 6 |  FUSB First Citizens | — — | 5.1% | 44K | $83.1M |
| 7 |  SIRI Sirius XM | — — | 4.2% | 2.9M | $67.9M |
| 8 |  LKQ LKQ Corp | — — | 3.5% | 1.9M | $56.3M |
| 9 |  AMZN Amazon | — — | 2.6% | 204K | $42.5M |
| 10 |  DIS Disney (Walt) | — — | 2.6% | 439K | $42.3M |
| 11 |  HSY Hershey Foods | — — | 2.5% | 192K | $40.0M |
| 12 | — Cimpress | — — | 2.1% | 471K | $34.4M |
| 13 |  JEF Jefferies | — — | 1.7% | 680K | $28.1M |
| 14 |  BRK-A Berkshire Hathaway 'A' | — — | 1.3% | 29 | $20.8M |
| 15 |  W Wayfair | — — | 0.8% | 168K | $12.6M |
| 16 |  AAPL Apple | — — | 0.4% | 23K | $5.9M |
| 17 |  BH-A Biglari Cl A | — — | 0.2% | 2K | $2.7M |
| 18 |  MSFT Microsoft | — — | 0.1% | 6K | $2.3M |
| 19 |  AMGN Amgen | — — | 0.1% | 4K | $1.4M |
| 20 |  CAT Caterpillar Tractor | — — | 0.1% | 2K | $1.2M |
| 21 | — Alphabet Class A | — — | 0.1% | 4K | $1.1M |
| 22 |  TRUP Trupanion Inc. | — — | 0.1% | 41K | $1.0M |
| 23 |  GS Goldman Sachs | — — | 0.1% | 1K | $1.0M |
| 24 |  TSLA Tesla Motors | — — | 0.1% | 3K | $929K |
| 25 |  GE General Electric | — — | 0.1% | 3K | $848K |
Showing 1–25 of 49 positions on this page reported in this 13F.
Tiles are sized by portfolio weight and coloured by sector; the “est.” figure on each tile is the estimated dividend- and split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
“Est. return” = estimated dividend/split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
- Unclassified35%
- Financial Services28%
- Communication Services19%
- Industrials7.2%
- Consumer Cyclical7.1%
- Consumer Defensive2.5%
- Technology0.6%
- Healthcare0.1%
- Energy0.0%
How this return is calculated
Estimated dividend- and split-adjusted return from the end of the first consecutive reported quarter in which the current holding appears in Bullish Whales’ 13F history, through the manager’s latest reported quarter. Current disclosed holdings only. Start dates differ by holding, changes in position size are not modeled, and positions no longer reported are excluded. Not the manager’s cost basis, purchase date, realized profit or loss, live performance, or portfolio performance.
- AddedBRK/BBerkshire Hathaway+0.5%$531.1M
- AddedFUSBFirst Citizens+3.0%$83.1M
- AddedSIRISirius XM+2.0%$67.9M
- AddedLKQLKQ Corp+23.0%$56.3M
- AddedAMZNAmazon+5763%$42.5M
- AddedDISDisney (Walt)+0.4%$42.3M
- AddedHSYHershey Foods+0.9%$40.0M
- Added—Cimpress+16.0%$34.4M
- AddedJEFJefferies+50.3%$28.1M
- AddedWWayfair+0.5%$12.6M
- ReducedGOOGLAlphabet−1.9%$198.0M
- ReducedBNBrookfield Corp.−0.2%$177.3M
- ReducedMKLMarkel−0.6%$147.2M
- ReducedAERAerCap Holdings−1.2%$112.2M
- ReducedAAPLApple−9.1%$5.9M
- ReducedBH-ABiglari Cl A−28.3%$2.7M
- ReducedMSFTMicrosoft−0.8%$2.3M
- ReducedTRUPTrupanion Inc.−0.2%$1.0M
- ReducedGEGeneral Electric−7.7%$848K
- ReducedGEVGE Vernova−8.8%$786K
Reading Steven Check — Check Capital Management’s 13F portfolio
Steven Check — Check Capital Management’s $1.6B 13F book is spread across 49 reported positions and is highly concentrated — its ten largest positions alone are 90% of the portfolio. A book this concentrated means a small group of names drives most of its performance. Its five largest positions are BRK/B, GOOGL, BN, MKL and AER, led by Berkshire Hathaway (BRK/B) at 33% of the portfolio. The heaviest sector exposure is Financial Services (28%), then Communication Services (19%).
What Steven Check — Check Capital Management changed last quarter
Between 2025-12-31 and Q1 2026, Steven Check — Check Capital Management was roughly balanced between buying and selling: it opened 0 new positions and added to 16 more, while trimming 15 and closing 1 outright. Against a 49-name book, that is low turnover, pointing to gradual, incremental repositioning rather than a wholesale change of view. Its largest new or increased position was Berkshire Hathaway (BRK/B), and its biggest reduction was Alphabet (GOOGL).
What a 13F does and doesn’t reveal
A 13F captures only Steven Check — Check Capital Management’s long positions in US-listed stocks at a single quarter-end, so it is best read as a lagged snapshot rather than a live portfolio. It won’t show shorts, cash, bonds, or holdings listed outside the US, and it never reveals the price paid or the reasoning behind a trade. The signal is in the pattern over time: which names Steven Check — Check Capital Management is building up, trimming, or exiting, and how concentrated the book stays from quarter to quarter.
Frequently asked questions
What is an SEC 13F filing?
A Form 13F is a report that every institutional investment manager with at least $100 million in US-listed securities must file with the SEC within 45 days of each quarter's end. It lists the manager's long positions in US-listed stocks and certain options, with the share count and market value of each. Steven Check — Check Capital Management's profile on this page is built directly from those filings.
How current is the 13F data on Steven Check — Check Capital Management's page?
It reflects Steven Check — Check Capital Management's most recently filed 13F, currently the quarter ending Q1 2026. Because managers have up to 45 days after a quarter closes to file, a 13F is always a slightly lagged view rather than a live portfolio. When Steven Check — Check Capital Management files its next quarterly report, this page refreshes automatically.
Can I see Steven Check — Check Capital Management's complete list of holdings?
This page highlights Steven Check — Check Capital Management's largest positions rather than all 49 names in the filing. The complete, position-by-position 13F is public and available from the SEC's EDGAR database under Steven Check — Check Capital Management's filings.
Does a 13F show everything Steven Check — Check Capital Management owns?
No. A 13F only covers long positions in US-listed stocks and certain options. It leaves out short positions, cash, bonds, commodities, foreign-listed stocks, and private holdings, so it is a partial view of Steven Check — Check Capital Management's book rather than its full strategy or total assets.
Is 13F data investment advice?
No. Everything here is educational. 13F positions are disclosed with a delay, cover only long US-listed holdings, and never explain why Steven Check — Check Capital Management made a trade or at what price. Treat it as a research lens, not a recommendation, and speak with a licensed financial advisor before making investment decisions.
Not investment advice. Holdings data comes from public SEC Form 13F filings, which are filed with a delay of up to 45 days and may be amended later. It describes historical, disclosed positions in US-listed securities only, meaning no shorts, cash, or foreign holdings, and it is not a recommendation. Always do your own research and speak with a licensed financial advisor before making investment decisions.