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Corundum Trust Company »

Costco Wholesale Corporation shares owned by Corundum Trust Company

Quarter-by-quarter ownership of Costco Wholesale Corporation (COST) shares owned by Corundum Trust Company from 13F filings

Historical chart of Corundum Trust Company investment in Costco Wholesale Corporation

Tip: Access up to 7 years of quarterly data

All positions including Costco Wholesale Corporation held by Corundum Trust Company consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Costco Wholesale Corporation by Corundum Trust Company

Quarter filed	Position value	Share count	Share price at filing
2025-09-30	$17k	18	925.61

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