Quantum-Si Incorporated (NASDAQ:QSI) ("Quantum-Si," "QSI" or the "Company"), The Protein Sequencing Company^TM, today announced that it will report financial results for the first quarter 2025 on Thursday, May 15, 2025. Jeff Hawkins, President and Chief Executive Officer, and Jeff Keyes, Chief Financial Officer, will host a conference call to discuss financial results and provide a business update on the same day at 4:30 PM ET.

Individuals interested in listening to the conference call may do so by joining the live webcast on the Investors section of the Quantum-Si website under Events and Presentations.

Alternatively, individuals can register here to receive a dial-in number and personalized PIN to participate in the call. An archived webcast of the event will be available for replay following the event.

About Quantum-Si Incorporated

Quantum-Si, The Protein Sequencing Company™, is focused on revolutionizing the growing field of proteomics. The Company's Platinum^®line of instruments enables Next-Gen Protein Sequencing™ that advances proteomic research, drug discovery, and diagnostics beyond what has been possible with existing proteomic tools. Learn more at quantum-si.com or follow us on LinkedIn or X.

Source: Quantum-Si Incorporated

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Investor Contact

Jeff Keyes

Chief Financial Officer

ir@quantum-si.com

Media Contact

Katherine Atkinson

SVP of Commercial Marketing

media@quantum-si.com

Quantum-Si to Report First Quarter 2025 Financial Results on May 15, 2025