John S. Vieceli is Chief Product Officer of Quantum-Si Inc. Currently has a direct ownership of 864,509 shares of QSI, which is worth approximately $1.1 Million. The most recent transaction as insider was on Mar 21, 2025, when has been sold 4,317 shares (Class A Common Stock) at a price of $1.39 per share, resulting in proceeds of $6,000. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 865K
438.66% 3M change
n/a 12M change
Total Value Held $1.1 Million

John S. Vieceli Transaction History

Date Transaction Value Shares Traded Shares Held Form
Mar 21 2025
SELL
Open market or private sale
$6,000 $1.39 p/Share
4,317 Reduced 0.5%
864,509 Class A Common Stock
Mar 12 2025
BUY
Grant, award, or other acquisition
-
708,333 Added 44.91%
868,826 Class A Common Stock
Dec 23 2024
SELL
Open market or private sale
$5,554 $1.29 p/Share
4,306 Reduced 2.61%
160,493 Class A Common Stock
Sep 24 2024
SELL
Open market or private sale
$1,968 $0.93 p/Share
2,117 Reduced 1.27%
164,799 Class A Common Stock
Sep 23 2024
SELL
Open market or private sale
$2,082 $0.95 p/Share
2,192 Reduced 1.3%
166,916 Class A Common Stock
JSV

John S. Vieceli

Chief Product Officer
Branford, CT

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