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Rio Tinto shares owned by Portman Square Capital

Quarter-by-quarter ownership of Rio Tinto (RIO) shares owned by Portman Square Capital from 13F filings

Historical chart of Portman Square Capital investment in Rio Tinto

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All positions including Rio Tinto held by Portman Square Capital consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Rio Tinto by Portman Square Capital

Quarter filed Position value Share count Share price at filing
2025-06-30 $13M 227k 58.33
2025-03-31 $21M 355k 60.08