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SEC Filing · 4

Quantum-Si Inc

SEC Filing

Filed Sep 23, 2026Accepted Sep 23, 2026, 7:51 PM EDTCIK 1816431Accession 0001140361-26-037481
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Company context

Quantum-Si is transforming proteomics with a benchtop platform that brings single-molecule protein analysis to every lab, everywhere. The Company’s platform enables real-time kinetic-based detection and allows researchers to move beyond traditional, multistep workflows and directly access dynamic, functional protein insights with unparalleled resolution. By making protein analysis simpler, faster, and more informative, Quantum-Si is accelerating proteomic discoveries to improve the way we live. Learn more at quantum-si.com or follow us on LinkedIn or X.

Historical securities (3)

Recent company filings

  1. 4 filingSep 23, 2026
  2. 144 filingSep 23, 2026
  3. 144 filingSep 23, 2026
  4. 144 filingSep 23, 2026
  5. 10-Q filingAug 13, 2026

As-filed source

Primary evidence