Quantum-Si Inc (QSI)
SEC filings, insider trading & institutional ownership from EDGAR.
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Latest filings
10-K, 10-Q, 8-K, Form 4 & 13D/G. Sourced directly from SEC EDGAR
No filings are available yet.
Top holders
13F & 13D/G • latest quarter
| Holder | Filed | Value |
|---|---|---|
| Vanguard Capital Management | Aug 13, 2026 | $6.71B |
| ARK Investment Management LLC | Aug 14, 2026 | $6.34B |
| BlackRock, Inc. | Aug 7, 2026 | $4.62B |
| MILLENNIUM MANAGEMENT LLC | Aug 14, 2026 | $2.77B |
| UBS Group AG | Aug 13, 2026 | $2.27B |
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Data as of Oct 16, 2026Source: SEC EDGAR.