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Blackrock Muniholdings Fund Inc is a closed-end management investment company. The fund's objective is to provide shareholders with current income exempt from U.S. federal income taxes. The company invests in Transportation, Health, Utilities, Education, Housing, and other sectors.
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.