QSI John S. Vieceli sold Quantum-Si Inc shares — SEC Form 4SELLQuantum-Si Inc

John S. Vieceli, Chief Product Officer at Quantum-Si Inc (QSI), sold 21,927 shares at $1.28 ($28K) on 2025-12-22, disclosed to the SEC on 2025-12-22.

SEC EDGAR Filing

0002032947-25-000005

View on SEC EDGAR

Trade context

Open-market sale of $28k QSI by Chief Product Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.

Modest55/100

Nothing distinguishes this filing.

Unusually Large TradeOpportunistic Sell

Filing Info

Filed2025-12-22

Traded2025-12-22

Accession0002032947-25-000005

Sourcesec_form345

Insider

NameJohn S. Vieceli

TitleChief Product Officer

PIT GradeInsiderUnrated

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Related Trades by This Insider

Ticker	Type	Filed	Value	7d Stock	Filing
QSI	SELL	2026-06-24	$28K	—	Filing →
QSI	SELL	2026-03-24	$37K	—

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QSI John S. Vieceli sold Quantum-Si Inc shares — SEC Form 4SELLQuantum-Si Inc

Filing Info

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