Quantum-Si Incorporated Class A
(NASDAQ: QSI)

Quantum-Si, Inc. is a life sciences company focused on revolutionizing the growing field of proteomics. It engages in the development of a proprietary universal single-molecule detection platform to enable Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins in a massively parallel fashion. Its platform includes platinum NGPS instrument, platinum analysis software, and consumable kits for platinum instrument. The company was founded by Jonathan M. Rothberg on June 24, 2013 and is headquartered in Branford, CT.

1.165 -

-0.035 (-2.92%)
Range 1.130 - 1.200   (6.19%)
Open 1.200
Previous Close 1.200
Bid Price 1.160
Bid Volume 22,268
Ask Price 1.170
Ask Volume 6,980
Volume 5,925,396
Value 5,408,357
Remark -
Delayed prices. Updated at 30 Jan 2026 04:51.
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