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QSI · Current Report (Form 8-K) · Filed December 29, 2025

Quantum-si Inc — Current Report (Form 8-K)

Form
8-K
Filed
December 29, 2025
Period
Dec 29, 2025
Ticker
QSI
Accession
0001816431-25-000074
Boardroom Alpha · Filing insights

Quantum-Si posts an updated corporate presentation for investors on December 29, 2025.

About Quantum-si Inc
Market cap
$270M
1Y TSR
−43.3%
3Y TSR
−14.7%
Board grade
C-
Sector
Healthcare
CEO
Jeffrey Alan Hawkins
Last annual meeting: May 15, 2026 · View full Quantum-si Inc profile →
qsi-20251229

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 OR 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): December 29, 2025
QUANTUM-SI INCORPORATED
(Exact name of registrant as specified in its charter)

Delaware
001-39486
85-1388175
(State or other jurisdiction of incorporation)(Commission File Number)(IRS Employer Identification No.)
29 Business Park Drive
Branford, Connecticut
06405
(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code: (866) 688-7374
N/A
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
oPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)
Name of each exchange on
which registered
Class A common stock, par value $0.0001 per shareQSIThe Nasdaq Stock Market LLC
Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per shareQSIAWThe Nasdaq Stock Market LLC
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company      o
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o



Item 7.01     Regulation FD Disclosure.

From time to time, Quantum-Si Incorporated (the “Company”) presents and/or distributes slides and presentations to the investment community to provide updates and summaries of its business. On December 29, 2025, the Company posted its updated corporate presentation to the Company’s website. The presentation slides are available on the “Investors” section of the Company’s website at https://ir.quantum-si.com. This presentation is also furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information in this Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference into any registration statement or other filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. The furnishing of the information in this Item 7.01 and Exhibit 99.1 is not intended to, and does not, constitute a determination or admission by the Company that the information in this report is material or complete, or that investors should consider this information before making an investment decision with respect to any security of the Company or any of its affiliates.
Item 9.01      Financial Statements and Exhibits.
(d)Exhibits.
Exhibit
No.
Description
Corporate Presentation of Quantum-Si Incorporated dated December 29, 2025
104Cover Page Interactive Data File (embedded within the Inline XBRL document)



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
QUANTUM-SI INCORPORATED
By:
/s/ Jeffry Keyes
Name:Jeffry Keyes
Title:Chief Financial Officer
Date: December 29, 2025

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Reference

Frequently asked questions

When did Quantum-si Inc file this 8-K?
Quantum-si Inc (QSI) filed this Current Report (Form 8-K) with the SEC on December 29, 2025. The accession number assigned by EDGAR is 0001816431-25-000074.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Quantum-Si posts an updated corporate presentation for investors on December 29, 2025. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Quantum-si Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Quantum-si Inc has filed under CIK 1816431, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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