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Costco Wholesale Corporation shares owned by Mason Investment Advisory Services

Quarter-by-quarter ownership of Costco Wholesale Corporation (COST) shares owned by Mason Investment Advisory Services from 13F filings

Historical chart of Mason Investment Advisory Services investment in Costco Wholesale Corporation

Tip: Access up to 7 years of quarterly data

All positions including Costco Wholesale Corporation held by Mason Investment Advisory Services consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Costco Wholesale Corporation by Mason Investment Advisory Services

Quarter filed Position value Share count Share price at filing
2025-09-30 $581k 628 925.39
2025-06-30 $413k 417 989.30
2025-03-31 $394k 416 946.20
2024-12-31 $381k 416 915.67
2024-09-30 $373k 420 886.96
2024-06-30 $495k 582 849.80
2024-03-31 $303k 414 732.63
2023-09-30 $220k 389 564.96
2023-06-30 $209k 389 538.38
2022-09-30 $474k 1.0k 472.27
2022-06-30 $479k 1.0k 479.28
2022-03-31 $576k 1.0k 575.85
2021-12-31 $568k 1.0k 567.70
2021-09-30 $449k 1.0k 449.35
2021-06-30 $396k 1.0k 395.67
2021-03-31 $353k 1.0k 352.48
2020-12-31 $377k 1.0k 376.78
2020-09-30 $355k 1.0k 355.00
2020-06-30 $303k 1.0k 303.21
2020-03-31 $285k 1.0k 285.13
2019-12-31 $294k 1.0k 293.92
2019-09-30 $288k 1.0k 288.11
2019-06-30 $264k 1.0k 264.26
2019-03-31 $242k 1.0k 242.14