Quantum-Si Inc

Quantum-Si Incorporated (Nasdaq: CAPA) is a life-sciences semiconductor company developing proprietary chip-based technology for next-generation protein sequencing. The company went public in 2021 through a business combination with HighCape Capital Acquisition Corp, a blank-check vehicle sponsored by HighCape Capital Management and focused on healthcare and life-sciences targets. HighCape Capital Acquisition Corp completed its SPAC IPO on Nasdaq in 2020. Quantum-Si filed an 8-K with the Securities and Exchange Commission on May 15, 2026, disclosing a material corporate development. The company operates at the intersection of semiconductor engineering and proteomics, targeting researchers and biopharma customers. Sign up at SpacDesk for full filing data, sponsor history, and real-time alerts on CAPA and hundreds of other SPAC-originated companies.