Why Quantum-Si Stock Flopped on Friday [Yahoo! Finance]
Quantum-Si Incorporated - Class A (QSI)
Company Research
Source: Yahoo! Finance
10 stocks we like better than Quantum-Si Incorporated › Quantum-Si 's (NASDAQ: QSI) shares weren't quite the picture of health as the trading week came to an end. Investors, concerned about the healthcare technology company potentially making dilutive secondary share issues, traded out of the stock to leave it with a nearly 5% loss on the day. Sitting on the shelf Late Thursday, Quantum-Si filed a shelf registration -- a regulatory document stating that a company aims to raise capital over time -- with the Securities and Exchange Commission (SEC). Image source: Getty Images. The company, which specializes in the fairly niche science of protein sequencing, aims to raise up to $300 million via the flotation of one or more types of security. In the filing, Quantum-Si listed Class A common stock, preferred stock, debt securities (it didn't get more specific), rights, and units as possibilities. In the document the company said it "will retain broad discretion," over the proce
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QSI
News
- Quantum-Si Highlights Significant Development Advancements for Proteus™ and Industry Leading Technology Pipeline at Investor & Analyst DayBusiness Wire
- Quantum-Si to Highlight Significant Proteus™ Platform Development Progress and Provide Insights into the Company's Industry Leading Technology Pipeline at Investor & Analyst Day [Yahoo! Finance]Yahoo! Finance
- Quantum-Si to Highlight Significant Proteus™ Platform Development Progress and Provide Insights into the Company’s Industry Leading Technology Pipeline at Investor & Analyst DayBusiness Wire
- Quantum-Si (NASDAQ:QSI) had its "sell (d-)" rating reaffirmed by analysts at <a style="font-weight:bold" href="https://weissratings.com/">Weiss Ratings</a>.MarketBeat
- Quantum-Si (NASDAQ:QSI) had its "sell (e+)" rating reaffirmed by analysts at <a style="font-weight:bold" href="https://weissratings.com/">Weiss Ratings</a>.MarketBeat
QSI
Earnings
- 11/5/25 - In-Line
QSI
Sec Filings
- 11/20/25 - Form 8-K
- 11/5/25 - Form 10-Q
- 11/5/25 - Form 8-K
- QSI's page on the SEC website