Costco Wholesale Corporation shares owned by Mainstream Capital Management
Quarter-by-quarter ownership of Costco Wholesale Corporation (COST) shares owned by Mainstream Capital Management
from 13F filings
Historical chart of Mainstream Capital Management investment in Costco Wholesale Corporation
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Quarterly reported holdings in Costco Wholesale Corporation by Mainstream Capital Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-12-31 | $2.0M | 2.3k | 862.28 |
| 2025-09-30 | $2.2M | 2.4k | 925.55 |
| 2025-06-30 | $2.3M | 2.3k | 989.84 |
| 2025-03-31 | $2.2M | 2.3k | 945.68 |
| 2024-12-31 | $2.0M | 2.2k | 916.15 |
| 2024-09-30 | $1.9M | 2.2k | 886.40 |
More positions owned by Mainstream Capital Management
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