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Quantum-Si Inc (QSI)

SEC filings, insider trading & institutional ownership from EDGAR.

NasdaqIndustrialsElectrical Equipment
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Institutions
34
$34.94M held

Latest filings

10-K, 10-Q, 8-K, Form 4 & 13D/G. Sourced directly from SEC EDGAR

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No filings are available yet.

Top holders

13F & 13D/G • latest quarter

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HolderFiledValue
Vanguard Capital ManagementAug 13, 2026$6.71M
ARK Investment Management LLCAug 14, 2026$6.34M
BlackRock, Inc.Aug 7, 2026$4.62M
MILLENNIUM MANAGEMENT LLCAug 14, 2026$2.77M
GEODE CAPITAL MANAGEMENT, LLCNov 6, 2026$2.28M

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Data as of Nov 9, 2026Source: SEC EDGAR.