QSI Chief Product Officer John Vieceli Sells $14K of Stock

John Vieceli sold 15,112 shares of QSI, valued at $13,600.8, on June 23, 2026.

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John Vieceli, Chief Product Officer at Quantum-Si incorporated ($QSI), sold 15,112 shares at an average price of $0.90, worth about $13,600.80, on June 23, 2026. The trade was reported to the SEC in a Form 4 filing.

Since the trade, $QSI is up 1.1% after 1 week, down 10.2% after 1 month and up 27.3% to date (from the $0.88 close on Jun 23, 2026).

Find the original: QSI Form 4 filings on SEC EDGAR

QSI Quantum-Si incorporated
$1.12 -3.45% year to date
Daily close · Oct 16, 2026

Key Points

  • John Vieceli, QSI's Chief Product Officer, sold 15,112 shares worth $13,600.8 on June 23, 2026, at an average price of $0.90.
  • Shares of QSI traded near $0.83 on Thursday, with institutional investors like BlackRock increasing their holdings.
  • Analysts like Canaccord Genuity maintained a hold rating with a $1.0 target, while HC Wainwright reiterated a buy rating with a $5.5 target.

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John Vieceli, the Chief Product Officer at QSI, sold 15,112 shares of the company on June 23, 2026. The shares were sold at an average price of $0.90, bringing the total transaction value to $13,600.8. This sale was not part of a pre-planned trading program.

Insider Buying and Selling at Quantum-Si incorporated

Several other insiders at QSI also sold shares on the same day. Jeffrey Alan Hawkins, the President and CEO, sold 11,311 shares at $0.90 each. Christian Lapointe, the General Counsel and Corporate Secretary, sold a total of 15,588 shares over two days, at prices of $0.90 and $0.93. Jeffry Keyes, the Chief Financial Officer, sold 4,117 shares at $0.90, along with 4,116 shares the previous day at $0.96.

Other Institutional Activity in QSI

Institutional investors have been active in QSI as well. BlackRock, Inc. increased its holdings by 360,892 shares, bringing its total to 13,414,949 shares worth about $10.38 million, marking a 2.8% increase. Vanguard Capital Management LLC opened a new position with 7,021,907 shares valued at approximately $5.43 million. ARK Investment Management LLC, on the other hand, reduced its stake by 142,672 shares, resulting in a 2.0% decrease, leaving it with 6,878,899 shares valued at $5.32 million. Amova Asset Management Americas, Inc. and Sumitomo Mitsui Trust Group, Inc. both trimmed their holdings by 299,054 shares, a 6.4% decrease, ending with 4,391,666 shares each valued around $3.42 million.

Quantum-Si incorporated Stock Up 11.0%

On Thursday, QSI shares traded near $0.83. While specific market cap and P/E ratio details are unavailable, the stock has been closely watched by institutional investors. The 52-week range and moving averages are not provided, but investors continue to track its performance closely.

Analysts Set New Price Targets

Analysts have maintained their positions on QSI. On March 5, 2026, Canaccord Genuity maintained a hold rating with a price target of $1.0. Previously, HC Wainwright & Co. reiterated a buy rating with a price target of $5.5 on January 14, 2025. The consensus remains mixed, with some analysts recommending holding, while others suggest buying.

Bottom Line

John Vieceli's recent sale of QSI shares highlights ongoing insider activity within the company. Institutional investors like BlackRock have shown interest by increasing their holdings, while analyst opinions remain varied. As always, it's important to remember that insider transactions and institutional filings often reflect past decisions and may not indicate current sentiment.

Source: John Vieceli's Form 4 filing on $QSI (Jun 23, 2026). Find the original filing: QSI Form 4 filings on SEC EDGAR. Written by software, not financial advice. How we make alerts

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