Quantum-Si to Participate in the H.C. Wainwright 27th Annual Global Investment Conference

About this update from Quantum-si Incorporated

BRANFORD, Conn., August 19, 2025 --( BUSINESS WIRE )--Quantum-Si Incorporated (Nasdaq: QSI) ("Quantum-Si," "QSI" or the "Company"), a proteomics technology company redefining protein analysis through single-molecule detection, today announced that it will be participating in the H.C. Wainwright 27th Annual Global Investment Conference taking place at the Lotte New York Palace Hotel, September 8-10, 2025. Jeff Hawkins, President and Chief Executive Officer, and Jeff Keyes, Chief Financial Officer, will be taking one-on-one meetings throughout the day on Tuesday, September 9, 2025 and Jeff Hawkins will participate in a fireside chat on the same day at 10:00 AM Eastern Time. A live and archived webcast of the event will be available in the "Investors" section of the Quantum-Si website under Events & Presentations . About Quantum-Si Incorporated 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 . View source version on businesswire.com: https://www.businesswire.com/news/home/20250819765585/en/ Contacts Investors & Media Jeff Keyes Chief Financial Officer [email protected]

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