SEC Form 4 reporting owner

Vieceli John S.

Vieceli John S. has filed 7 Form 4 transactions reported between December 22, 2025 and June 23, 2026, as Chief Product Officer of Quantum-Si Inc.

Name as filed: Vieceli John S.

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$74K
5 lines
Companies
1
with Form 4 filings
Latest transaction
Jun 23, 2026
transaction date

Roles and reported holdings

  • QSIQuantum-Si Inc
    Dec 22, 2025 – Jun 23, 2026

    Chief Product Officer

    Held directly1,140,434 sh as of Jun 23, 2026 · Form 4

    24 months: $74K sold

Transaction history

All 7 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jun 23, 2026QSIChief Product OfficerOpen-market saleCode S · direct15,112$14K@ $0.8990Form 4
Jun 22, 2026QSIChief Product OfficerOpen-market saleCode S · direct15,111$14K@ $0.9574Form 4
Mar 23, 2026QSIChief Product OfficerOpen-market saleCode S · direct11,239$9K@ $0.8266Form 4
Mar 20, 2026QSIChief Product OfficerOpen-market saleCode S · direct10,758$9K@ $0.8483Form 4
Mar 12, 2026QSIChief Product OfficerGrant or awardCode A · direct468,508—Form 4
Mar 12, 2026QSIChief Product OfficerGrant or awardCode A · direct391,681—Form 4
Dec 22, 2025QSIChief Product OfficerOpen-market saleCode S · direct21,927$28K@ $1.28Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.