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Check Capital Management 13F Holdings and Portfolio Changes
Check Capital Management reported $3.78B in 13F securities for Q2 2026, with 53 positions. Values are as of the report date; option positions, when present, use underlying-security values. This is not complete fund assets or investment performance.
Open interactive portfolioLatest 13F portfolio changes
New or increased positions include Berkshire Hathaway (BRK-B), Brookfield (BN), Markel (MKL), and First Citizens (FCNCA). Reduced or exited positions include Alphabet, AerCap Holdings (AER), Sirius XM (SIRI), and LKQ. These are comparisons between reported positions, not a record of execution dates, prices or cash traded.
Latest filing metadata: quarter Q2 2026; report date 2026-06-30; filing date 2026-08-05; disclosure source SEC 13F.
Reported holdings and concentration
Check Capital Management's Q2 2026 13F report contains 53 positions valued at $3.78B. The largest reported holdings include Berkshire Hathaway, Alphabet, Brookfield, Markel, and AerCap Holdings.
The three largest positions in the holdings table account for approximately 55.6% of reported 13F value. The largest reported sector exposure is Other at 33.5% of the disclosed portfolio.
The filing metadata lists report date 2026-06-30, filing date 2026-08-05, SEC accession 0001032814-26-000007. SEC 13F reports are normally published up to 45 days after quarter end, so the data is best used to understand institutional positioning after the fact rather than to infer today's exact portfolio.
Check Capital Management portfolio analytics
the top five positions account for 71.0% of disclosed value; the largest sector exposure is Financials at 33.1%.
Top reported holdings
| Holding | Reported value | Weight | Quarter change |
|---|---|---|---|
| BRK-B whale holders Berkshire Hathaway | $560.0M | 31.7% | Increased |
| N/A whale holders Alphabet | $235.9M | 13.3% | Reduced |
| BN whale holders Brookfield Corp. | $187.8M | 10.6% | Increased |
| MKL whale holders Markel | $154.7M | 8.8% | Increased |
| AER whale holders AerCap Holdings | $117.8M | 6.7% | Reduced |
| FCNCA whale holders First Citizens | $92.3M | 5.2% | Increased |
| SIRI whale holders Sirius XM | $86.5M | 4.9% | Reduced |
| LKQ whale holders LKQ Corp | $49.7M | 2.8% | Reduced |
| AMZN whale holders Amazon | $49.1M | 2.8% | Increased |
| N/A whale holders Cimpress | $48.1M | 2.7% | Increased |
New and increased positions
Largest reported position values among additions; not amounts spent buying.
- BRK-B whale holders — Berkshire Hathaway ($560.0M)
- BN whale holders — Brookfield Corp. ($187.8M)
- MKL whale holders — Markel ($154.7M)
- FCNCA whale holders — First Citizens ($92.3M)
- AMZN whale holders — Amazon ($49.1M)
- N/A whale holders — Cimpress ($48.1M)
Reduced and exited positions
Sorted by reported position value; exits use the prior report. These are not sale proceeds.
- N/A whale holders — Alphabet ($235.9M)
- AER whale holders — AerCap Holdings ($117.8M)
- SIRI whale holders — Sirius XM ($86.5M)
- LKQ whale holders — LKQ Corp ($49.7M)
- BRK-A whale holders — Berkshire Hathaway 'A' ($21.0M)
- BHA whale holders — Biglari Cl A ($3.3M)
Allocation
- Other: 33.5%
- Financials: 33.1%
- Information Technology: 14.1%
- Communication Services: 7.3%
- Industrials: 6.9%
- Consumer Discretionary: 2.9%
- Consumer Staples: 2.0%
- Health Care: 0.1%
Data notes
Report date: 2026-06-30
Disclosure source: SEC 13F
Read the original SEC filing (0001032814-26-000007)
SEC 13F filings are delayed public disclosures and do not include every asset class, short positions, or real-time trades.
Related investor portfolios
Profiles with the same disclosure type, ordered by overlap among their top 20 reported holdings.
- Markel Group 13F holdings and portfolio changes — Markel Group
- Chou Associates 13F holdings and portfolio changes — Chou Associates
- Greenlea Lane Capital 13F holdings and portfolio changes — Greenlea Lane Capital
- H&H International Investment 13F holdings and portfolio changes — H&H International Investment
- National Pension Service 13F holdings and portfolio changes — National Pension Service
- Weitz Investment Management 13F holdings and portfolio changes — Weitz Investment Management
- Fairholme Capital Management 13F holdings and portfolio changes — Fairholme Capital Management
- Pershing Square Capital 13F holdings and portfolio changes — Pershing Square Capital
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Questions about this 13F filing
What does Check Capital Management report for Q2 2026?
The filing reports 53 positions and $3.78B in 13F securities. The holdings table shows reported values and weights; option values follow the filing's reporting conventions.
What changed between filings?
New or increased positions include Berkshire Hathaway (BRK-B), Brookfield (BN), Markel (MKL), and First Citizens (FCNCA). Reduced or exited positions include Alphabet, AerCap Holdings (AER), Sirius XM (SIRI), and LKQ.
Do these amounts show how much was bought or sold?
No. The change lists are ranked by reported position value. Exited positions use their value in the prior report. These amounts are not execution prices, cash invested or sale proceeds.
Is this the current portfolio?
No. Form 13F is a quarter-end snapshot, generally filed within 45 days of quarter end. It excludes short positions and does not cover every asset. Compare the report date and filing date before using the data.