Quantum-Si launches new sequencing kit with expanded capabilities

BRANFORD, Conn. - Quantum-Si Incorporated (NASDAQ:QSI), a proteomics technology company with a market capitalization of $219 million and impressive revenue growth of over 100% in the last twelve months, announced Monday the release of its V4 Sequencing Kit, compatible with both Platinum and Platinum Pro instruments.

The new kit enhances protein analysis capabilities with improved sequencing coverage through the addition of glycine recognition, enhanced alanine and serine recognition, and an enzyme designed to cut through amino acids directly preceding proline. According to InvestingPro data, while the company maintains strong liquid assets exceeding short-term obligations with a current ratio of 9.43, it faces challenges with rapid cash burn - one of several key insights available in the comprehensive Pro Research Report.

According to the company, the V4 kit offers an 85% increase in sequenceable peptides compared to its predecessor, the V3 Sequencing Kit. The updated technology enables analysis of proline-rich domains found in antibodies and membrane proteins.

The kit also includes improved bioinformatics that allows for barcoding of up to 24-plex samples and better analysis of protein mixtures commonly found in immunoprecipitation workflows.

"The performance of the V4 Sequencing Kit is a significant leap forward over the prior version of our chemistry and will open up new applications such as antibody sequencing and expand the range of complex mixtures customers can analyze," said Jeff Hawkins, President and Chief Executive Officer of Quantum-Si, in a press release statement.

Quantum-Si, which describes itself as a proteomics technology company focused on single-molecule protein detection, trades on the Nasdaq under the ticker QSI. The company’s platform aims to provide real-time kinetic-based detection for protein analysis. Trading at $1.08, the stock has shown significant volatility, with InvestingPro analysis indicating oversold conditions based on RSI metrics. Discover more detailed insights and 8 additional ProTips with an InvestingPro subscription.

The information in this article is based on a press release issued by Quantum-Si.

In other recent news, QuantumSi Inc. reported its earnings for the second quarter of 2025, showing a mixed financial performance. The company announced an earnings per share (EPS) of -$0.16, which was slightly below the forecast of -$0.14. Despite this, QuantumSi achieved a revenue surprise with a 15.7% increase over expectations, although the actual revenue of $591,000 still fell short of some estimates. These earnings results are part of the latest developments concerning the company. There were no significant changes in the stock price following the announcements. Analyst firms have not provided any recent upgrades or downgrades for QuantumSi. These earnings figures are crucial for investors as they assess the company’s financial health and future potential.

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