Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
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| No transactions found | ||||||||||
John S. Vieceli currently holds 1,170,657 shares of Quantum-Si Inc (QSI), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John S. Vieceli has been a net seller of QSI stock. They have purchased $0 and sold $83.2K worth of shares.
John S. Vieceli's most recent insider trade was on Mar 23, 2026, when they sold 11,239 shares at $0.83 per share.
John S. Vieceli serves as Executive at Quantum-Si Inc (QSI). They have executed 7 insider transactions totaling $83.2K over their tenure at the company.
John S. Vieceli holds the position of Executive at Quantum-Si Inc, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 2 years and currently hold a stake valued at $0.
John S. Vieceli has shown a selling trading pattern, with $0 in total purchases and $83.2K in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by John S. Vieceli was on Dec 22, 2025, when they sold $28.1K worth of QSI shares. This transaction involved 21,927 shares at $1.28 per share.
John S. Vieceli currently owns 1,170,657 shares of Quantum-Si Inc (QSI), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of John S. Vieceli's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. John S. Vieceli has 7 Form 4 filings on record as an insider at Quantum-Si Inc.
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