Quantum-Si reports Q4 2025 revenue of $451k, announces Proteus list price of $425k, and provides 2026 guidance

Quantum-Si Inc

Fourth quarter 2025 revenue was $451,000, gross margin 27%, and net loss $17.6 million.
Company announced list price for Proteus platform at $425,000 and reiterated on track for year-end 2026 launch.
Full year 2026 revenue guidance of approximately $1.0 million, adjusted operating expenses $98 million or less, total cash usage $93 million or less.
Cash and investments as of Dec 31, 2025: $215.8 million, expected to fund operations into Q2 2028.
Legacy litigation charges of $18.7 million impacted 2025 results.

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