---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-24-005543"
form_type: "8-K"
ticker: "QSI"
cik: "0001816431"
company_name: "Quantum-Si Inc"
filed_at: "2024-02-05T23:59:59+00:00"
generated_at: "2026-06-06T09:16:16.371589+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Quantum-Si launches V2 Sequencing Kits with 3-fold cost reduction, new amino acid recognizer

## Summary
- V2 Sequencing Kit adds new amino acid recognizer, improved surface chemistry, reagents, and software.
- Approximately 3-fold reduction in cost per amino acid for protein sequencing.
- Enhancements enable increased sequencing output, high reproducibility, and identification of unknown proteins.
- Platform now supports peptide barcodes and new sample types, expanding potential applications.

## SEC filing metadata
- accession: 0001140361-24-005543
- form_type: 8-K
- ticker: QSI
- cik: 0001816431
- company_name: Quantum-Si Inc
- filed_at: 2024-02-05T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1816431/000114036124005543/0001140361-24-005543-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1816431/000114036124005543/ef20020527_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-24-005543
- JSON: https://secwatch.observer/filing/0001140361-24-005543.json
- Plain text: https://secwatch.observer/filing/0001140361-24-005543.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.