Quantum Si shares owned by Vanguard Fiduciary Trust
Quarter-by-quarter ownership of Quantum Si (QSI) shares owned by Vanguard Fiduciary Trust
from 13F filings
Historical chart of Vanguard Fiduciary Trust investment in Quantum Si
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Quarterly reported holdings in Quantum Si by Vanguard Fiduciary Trust
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-06-30 | $988k | 1.1M | 0.89 |
| 2026-03-31 | $865k | 1.1M | 0.77 |