Not yet filed. No Q3 2026 Form 13F from Check Capital Management has been detected on SEC EDGAR yet. The deadline for the quarter ended Sep 30, 2026 is Monday, Nov 16, 2026.
From the fund's 2026 Q2 Form 13F (filed Aug 5, 2026) — the latest quarter fully processed on this site.
| Stock | Shares | Portfolio weight |
|---|---|---|
| BRK.B · BERKSHIRE HATHAWAY INC | 1,119,075 | 14.95% |
| GOOGL · Alphabet Inc. | 667,772 | 6.30% |
| BN · BROOKFIELD Corp /ON/ | 4,409,171 | 5.01% |
| MKL · MARKEL GROUP INC. | 79,209 | 4.13% |
| AER · AerCap Holdings N.V. | 807,867 | 3.14% |
| FCNCA · FIRST CITIZENS BANCSHARES INC /DE/ | 44,355 | 2.46% |
| SIRI · SIRIUS XM HOLDINGS INC. | 2,927,799 | 2.31% |
| LKQ · LKQ CORP | 1,886,416 | 1.33% |
| AMZN · AMAZON COM INC | 206,057 | 1.31% |
| CMPR · CIMPRESS plc | 472,485 | 1.28% |
Largest increase 2026 Q1 → 2026 Q2: HSY (+6.7% of shares). Largest trim 2026 Q1 → 2026 Q2: BRK.A (-3.4% of shares). Exited in 2026 Q2: AAPL, MSFT, AMGN and 26 more.
Full record: Check Capital Management fund page · manager profile & 13F-clone record · Q3 2026 season tracker.
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