secwatch.observer — SEC 8-K summary
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Issuer:     Quantum-Si Inc (QSI)
CIK:        0001816431
Form:       8-K
Filed at:   2025-11-20T23:59:59+00:00
Accession:  0001816431-25-000071
Event type: other_material
Sentiment:  positive
Materiality: 0.70
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Quantum-Si targets Proteus launch in Q4 2026 with 20-AA detection by 2027
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- Proteus product launch set for YE2026; first integrated system expected Q1 2026.
- Sequencing kit V4 detects 14 of 20 amino acids; path to 18 at launch, all 20 by 2027.
- Partnerships with Carna Biosciences (kinase profiling) and Siena Quant (ultra-low-abundance biomarkers).
- Proteus architecture yields superior SNR and alignment output vs Platinum; 80M wells per consumable.
- Recognizer pipeline scaling 4× using AI, rational design, and combinatorial methods; 8 dyes demonstrated.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1816431/000181643125000071/0001816431-25-000071-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1816431/000181643125000071/qsi-20251119.htm
  HTML page:      https://secwatch.observer/filing/0001816431-25-000071

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer