COST · CUSIP 22160K105
COSTCO WHOLESALE CORPORATION
Reported by 6 of 79 curated managers in Q2 2026, in the holdings snapshot last exported 2026-10-26.
- Managers holding
- 6
- Average portfolio weight
- 0.1%
- Combined reported value
- $46.6M
- Research group
- 79
6 of the 79 superinvestors Shameless Cloning tracks reported COSTCO WHOLESALE CORPORATION (COST) in their Q2 2026 13F filings, worth $46.6M combined, at an average 0.1% of their portfolios. The largest positions by portfolio weight belong to Christopher Bloomstran (0.4%), Thomas Gayner (0.3%), Torray Funds (0.1%).
Reporting managers
This is a historical 13F snapshot, not a live shareholder register. The count covers all matched managers; dashboard rankings use only those with at least 95% coverage. Reported value is measured at filing quarter-end, not at today's price.
| Manager / SEC filer | % of portfolio | Reported value |
|---|---|---|
| Christopher BloomstranSEMPER AUGUSTUS INVESTMENTS GROUP LLC | 0.4% | $3.1M |
| Thomas GaynerMarkel Group Inc. | 0.3% | $36.6M |
| Torray FundsTorray Investment Partners LLC | 0.1% | $587K |
| Thomas RussoGARDNER RUSSO & QUINN LLC | 0.0% | $3.2M |
| Mairs & Power FundsMAIRS & POWER INC | 0.0% | $2.8M |
| Bill NygrenHARRIS ASSOCIATES L P | 0.0% | $335K |