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Protagonist Therapeutics shares owned by Canton Hathaway

Quarter-by-quarter ownership of Protagonist Therapeutics (PTGX) shares owned by Canton Hathaway from 13F filings

Historical chart of Canton Hathaway investment in Protagonist Therapeutics

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All positions including Protagonist Therapeutics held by Canton Hathaway consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Protagonist Therapeutics by Canton Hathaway

Quarter filed Position value Share count Share price at filing
2025-12-31 $87k 1.0k 87.34