John S. Vieceli
Chief Product Officer · Quantum-Si Inc
- 2024
- Jun 25, 2026
- 5
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies John S. Vieceli files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Charles R. Kummeth - $460K in QSI purchases and sales in the last 12 months
- Jeffrey Alan Hawkins - $231K in QSI purchases and sales in the last 12 months
- Paula Dowdy - $104K in QSI purchases and sales in the last 12 months
- Jeffry R. Keyes - $96K in QSI purchases and sales in the last 12 months
- Jonathan M. Rothberg - $80K in QSI purchases and sales in the last 12 months
- Christian Lapointe - $35K in QSI purchases and sales in the last 12 months
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Frequently asked questions
Who is John S. Vieceli?
John S. Vieceli is a corporate insider, tracked as Chief Product Officer of Quantum-Si Inc (QSI). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did John S. Vieceli last file a Form 4?
The most recent primary Form 4 on record is dated 25 June 2026, one of 5 filings going back to 2024.
Has John S. Vieceli been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($85K) across all tracked filings.
