Check Capital Management Inc/ca
Check Capital Management Inc/ca reported 52 stocks worth $5.1B in its 13F filing for Q2 2026, filed Aug 5, 2026. Its largest holdings are BRK.B (30.0%), Alphabet Inc CL C (13.8%) and BN (11.0%). Compared with Q1 2026, the fund opened new positions in FCX, HBM and LRCX, added to BRK.B, BN and MKL and sold out of COP and VZ.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  BRK.B Berkshire Hathaway Inc Del | $1.5B | 30.0% | 3.1M | +2M (+177%) | 8 of 8 | |
| 2 | ALPHABET INC CL C | $708M | 13.8% | 2M | +1.3M (+190%) | 8 of 8 | |
| 3 |  BN Brookfield Corp Fclass A | $563M | 11.0% | 13.2M | +8.8M (+202%) | 8 of 8 | |
| 4 |  MKL Markel Group Inc | $464M | 9.1% | 238K | +161K (+209%) | 8 of 8 | |
| 5 |  AER Aercap Holdings NV | $353M | 6.9% | 2.4M | +1.6M (+196%) | 8 of 8 | |
| 6 |  FCNCA First Ctzns Bancshares Inc N | $277M | 5.4% | 133K | +89K (+202%) | 8 of 8 | |
| 7 |  SIRI Siriusxm Hldgs Inc Equit | $259M | 5.1% | 8.8M | +5.8M (+198%) | 8 of 8 | |
| 8 |  LKQ Lkq Corp | $149M | 2.9% | 5.7M | +3.7M (+195%) | 8 of 8 | |
| 9 |  AMZN Amazon Com Inc | $147M | 2.9% | 618K | +414K (+203%) | 8 of 8 | |
| 10 |  CMPR Cimpress | $144M | 2.8% | 1.4M | +946K (+201%) | 8 of 8 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q1 2026, gone in Q2 2026
Options
valued at the underlying shares| Stock | Type | Value | Shares | Change |
|---|---|---|---|---|
BRK.B Berkshire Hathaway Inc Del | Call | $6B | 12.1M | +8,265,400 |
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 5, 2026 | 13F-HR/A Amendment | Q2 2026 | SEC filing ↗ |
| Aug 5, 2026 | 13F-HR/A Amendment | Q2 2026 | SEC filing ↗ |
| Aug 3, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
Includes an amendment, which can add positions the fund kept confidential at first, or replace the original report.
Other superinvestors
All hedge fund holdings →Check Capital Management Inc/ca 13F FAQ
What does Check Capital Management Inc/ca own?
Check Capital Management Inc/ca reported 52 stocks worth $5.1B in its 13F filing for Q2 2026, filed Aug 5, 2026. Its largest holdings are BRK.B (30.0%), Alphabet Inc CL C (13.8%) and BN (11.0%). The table above lists every position in the filing (the top 10 without an account).
What did Check Capital Management Inc/ca buy and sell in Q2 2026?
Compared with Q1 2026: 5 new positions, 47 added to, 0 trimmed and 2 sold out. New positions include FCX, HBM and LRCX. It sold all of COP and VZ.
When will Check Capital Management Inc/ca file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is Check Capital Management Inc/ca's portfolio worth?
The Q2 2026 filing reports $5.1B in US stocks ($11.2B including options). That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.