Quantum-Si Inc

Quantum-Si Incorporated (Nasdaq: QSI) is a publicly traded life sciences semiconductor company that entered public markets via a SPAC merger with HighCape Capital Acquisition Corp., sponsored by HighCape Capital Management, completing its business combination in 2021. The company develops semiconductor chip-based protein sequencing instruments targeting research and clinical laboratory markets, positioning itself at the convergence of genomics and semiconductor engineering. Quantum-Si filed an 8-K current report with the SEC on May 15, 2026, the latest in its ongoing public disclosure record as an active Nasdaq-listed issuer. For full filing history, deal analytics, and real-time data on QSI, sign up for SpacDesk.