Quantum-Si Incorporated (QSI)

• Market cap: $393M
• 1 day: 8.08%
• 5 days: 3.88%
• 1 month: 21.59%
• 3 months: 84.48%
• 6 months: -50.12%
• Year to date: -49.77%
• 1 year: 123.80%
• 5 years: -78.34%
• 10 years: -78.34%
• Sector: Healthcare
• Industry: Medical Devices

About: Quantum-Si Inc is a life sciences company focused on the development and commercialization of proteomics research tools. The company has designed and developed a hardware, consumable, and software solution to provide a solution for protein detection and analysis. It has developed a proprietary universal single-molecule detection platform that enables Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins.

Employees: 143

Fund manager confidence

Based on 2025 Q1 regulatory disclosures by fund managers ($100M+ AUM)

81% more first-time investments, than exits

New positions opened: 38 | Existing positions closed: 21

12% more funds holding

Funds holding: 120 [Q4 2024] → 134 (+14) [Q1 2025]

11% more repeat investments, than reductions

Existing positions increased: 39 | Existing positions reduced: 35

8.35% less ownership

Funds ownership: 43.71% [Q4 2024] → 35.36% (-8.35%) [Q1 2025]

22% less call options, than puts

Call options by funds: $1.48M | Put options by funds: $1.89M

52% less capital invested

Capital invested by funds: $145M [Q4 2024] → $69.2M (-$75.7M) [Q1 2025]