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QSI insider trading

Quantum-Si Inc — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
2
Bought · 24 mo
$564k
Buys · last 90 days
0 · $0
Most recent buy
2026-03-09

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-03-09Kummeth Charles R.
Director
Bought500,000$0.92$460k
2026-03-09Dowdy Paula
Director
Bought109,890$0.95$104k
2024-12-31ROTHBERG JONATHAN M
Director · 10% owner
Sold3,337,015$3.30$11.0M

Most active insider buyers

InsiderRoleBuysTotal bought
Kummeth Charles R.Director1$460k
Dowdy PaulaDirector1$104k

See QSI on the chart

Every insider buy and sell for QSI plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

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Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.