Costco Wholesale Corporation shares owned by S.A. Mason
Quarter-by-quarter ownership of Costco Wholesale Corporation (COST) shares owned by S.A. Mason
from 13F filings
Historical chart of S.A. Mason investment in Costco Wholesale Corporation
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Quarterly reported holdings in Costco Wholesale Corporation by S.A. Mason
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $4.5M | 4.9k | 925.66 |
| 2025-06-30 | $4.9M | 5.0k | 989.93 |
| 2025-03-31 | $4.8M | 5.1k | 945.73 |
| 2024-12-31 | $4.7M | 5.1k | 916.21 |
| 2024-09-30 | $4.5M | 5.1k | 886.58 |
| 2024-06-30 | $4.3M | 5.1k | 849.99 |
| 2024-03-31 | $3.8M | 5.2k | 732.57 |
| 2023-12-31 | $3.4M | 5.2k | 660.11 |
| 2023-09-30 | $3.0M | 5.3k | 564.94 |
| 2023-06-30 | $2.6M | 5.3k | 496.82 |
| 2023-03-31 | $2.6M | 5.3k | 496.82 |
| 2022-12-31 | $2.4M | 5.3k | 456.51 |
| 2022-09-30 | $2.6M | 5.4k | 472.17 |
| 2022-06-30 | $2.7M | 5.7k | 479.34 |
| 2022-03-31 | $3.3M | 5.7k | 575.91 |
| 2021-12-31 | $3.2M | 5.7k | 567.68 |
| 2021-09-30 | $2.6M | 5.8k | 449.38 |
| 2021-06-30 | $2.3M | 5.8k | 395.64 |
| 2021-03-31 | $2.0M | 5.8k | 352.47 |
| 2020-12-31 | $2.1M | 5.6k | 376.73 |
| 2020-09-30 | $2.0M | 5.6k | 354.99 |
| 2020-06-30 | $1.7M | 5.6k | 303.22 |
| 2020-03-31 | $1.7M | 5.9k | 285.06 |
| 2019-12-31 | $1.7M | 5.9k | 293.84 |