QuantumSi Inc

Quantum-Si Incorporated is a life sciences company that develops a proprietary, universal single-molecule detection platform for proteomics, enabling next-generation protein sequencing (NGPS). Its offerings include Platinum and Platinum Pro NGPS instruments for single-molecule, amino acid-level resolution and automated data analysis, as well as library preparation kits and sequencing kits containing reagents and consumables. The company also provides Platinum analysis software, a cloud-based solution that automates data analysis workflows and visualizes sequencing results. Founded in 2013, Quantum-Si is headquartered in Branford, Connecticut.

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Quantum-Si beats Q2 estimates, reiterates 2026 guidance

Quantum-Si reported second-quarter 2026 results that beat analyst expectations. The company posted a GAAP loss of $0.11 per share, beating estimates by $0.01, while revenue of $0.34 million, down 42.4% year-over-year, exceeded forecasts by $0.04 million. Quantum-Si also reiterated its full-year 2026 guidance, which calls for revenue of approximately $1.0 million, adjusted total operating expenses of $98.0 million or less, and total cash usage of $93.0 million or less.

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