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.

0.900 -

-0.033 (-3.54%)
Range 0.882 - 0.911   (3.29%)
Open 0.905
Previous Close 0.933
Bid Price 0.900
Bid Volume 100
Ask Price 0.902
Ask Volume 910
Volume 1,462,978
Value 968,737
Remark -
Delayed prices. Updated at 15 May 2026 22:15.
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