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Quantum Si shares owned by Belvedere Trading

Quarter-by-quarter ownership of Quantum Si (QSI) shares owned by Belvedere Trading from 13F filings

Historical chart of Belvedere Trading investment in Quantum Si

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All positions including Quantum Si held by Belvedere Trading consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Quantum Si by Belvedere Trading

Quarter filed Position value Share count Share price at filing
2025-09-30 $25k 18k 1.41
2025-06-30 $47k 24k 1.96
2024-12-31 $249k 92k 2.70
2021-06-30 $405k 33k 12.27