Form 8-K
8-K — Quantum-Si Inc
Accession: 0001816431-26-000037
Filed: 2026-05-15
Period: 2026-05-15
CIK: 0001816431
SIC: 3829 (MEASURING & CONTROLLING DEVICES, NEC)
Item: Submission of Matters to a Vote of Security Holders
Documents
8-K — qsi-20260515.htm (Primary)
XML — IDEA: XBRL DOCUMENT (R1.htm)
8-K
8-K (Primary)
Filename: qsi-20260515.htm · Sequence: 1
qsi-20260515
0001816431FALSE00018164312026-05-152026-05-150001816431us-gaap:CommonClassAMember2026-05-152026-05-150001816431qsi:RedeemableWarrantsEachWholeWarrantExercisableForOneShareOfClassACommonStockEachAtAnExercisePriceOf1150PerShareMember2026-05-152026-05-15
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): May 15, 2026
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:
o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o Pre-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 class Trading Symbol(s)
Name of each exchange on
which registered
Class A common stock, par value $0.0001 per share QSI The 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 share QSIAW The 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 5.07 Submission of Matters to a Vote of Security Holders.
(a) On May 15, 2026, the Company held its Annual Meeting. At the Annual Meeting, the Company’s shareholders voted on three proposals, each of which is described in more detail in the Company’s definitive proxy statement filed with the Securities and Exchange Commission on April 1, 2026 (the “Proxy Statement”). At the Annual Meeting, there were 104,709,566 shares of Class A common stock and 19,937,500 shares of Class B common stock present or represented by proxy, which represented approximately 84.59% of the outstanding total voting power of the shares of Class A common stock and Class B common stock entitled to vote at the Annual Meeting (voting together as a single class), which constituted a quorum for the transaction of business. Holders of the Company’s Class A common stock were entitled to one vote for each share held as of the close of business on March 20, 2026 (the “Record Date”), and holders of the Company’s Class B common stock were entitled to 20 votes for each share held as of the Record Date.
(b) The following actions were taken at the Annual Meeting:
1. The following nominees were reelected to serve on the Board until the Company’s 2027 annual meeting of stockholders, based on the following votes:
Name Votes For Votes Against Votes Abstained Broker Non-Votes
Charles Kummeth 450,934,026 3,431,426 181,207 48,912,907
Jeffrey Hawkins 450,954,265 3,490,927 101,467 48,912,907
Paula Dowdy 450,854,550 3,470,812 221,297 48,912,907
Ruth Fattori 450,847,672 3,497,189 201,798 48,912,907
Amir Jafri 450,841,057 3,281,385 424,217 48,912,907
Jack Kenny 444,883,464 9,461,504 201,691 48,912,907
Brigid A. Makes 450,879,316 3,265,783 401,560 48,912,907
Scott Mendel 450,854,550 3,470,812 221,297 48,912,907
Kevin Rakin 450,883,869 3,260,489 402,301 48,912,907
Jonathan M. Rothberg, Ph.D. 454,010,014 429,631 107,014 48,912,907
2. The selection of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 was ratified, based on the following votes:
Votes For Votes Against Votes Abstained Broker Non-Votes
502,452,749 756,904 249,913 48,912,907
3. The advisory vote of the compensation of the Company’s named executive officers, as described in the Proxy Statement, was approved, based on the following votes:
Votes For Votes Against Votes Abstained Broker Non-Votes
441,315,119 13,004,700 226,840 48,912,907
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: May 15, 2026
XML — IDEA: XBRL DOCUMENT
XML
Filename: R1.htm · Sequence: 7
v3.26.1
Document and Entity Information
May 15, 2026
Entity Listings [Line Items]
Document Type
8-K
Document Period End Date
May 15, 2026
Entity Registrant Name
QUANTUM-SI INCORPORATED
Entity Incorporation, State or Country Code
DE
Entity File Number
001-39486
Entity Tax Identification Number
85-1388175
Entity Address, Address Line One
29 Business Park Drive
Entity Address, City or Town
Branford
Entity Address, State or Province
CT
Entity Address, Postal Zip Code
06405
City Area Code
866
Local Phone Number
688-7374
Written Communications
false
Soliciting Material
false
Pre-commencement Tender Offer
false
Pre-commencement Issuer Tender Offer
false
Entity Emerging Growth Company
false
Entity Central Index Key
0001816431
Amendment Flag
false
Common Class A
Entity Listings [Line Items]
Title of 12(b) Security
Class A common stock, par value $0.0001 per share
Trading Symbol
QSI
Security Exchange Name
NASDAQ
Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share
Entity Listings [Line Items]
Title of 12(b) Security
Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share
Trading Symbol
QSIAW
Security Exchange Name
NASDAQ
X
- Definition
Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.
+ References
No definition available.
+ Details
Name:
dei_AmendmentFlag
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Area code of city
+ References
No definition available.
+ Details
Name:
dei_CityAreaCode
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.
+ References
No definition available.
+ Details
Name:
dei_DocumentPeriodEndDate
Namespace Prefix:
dei_
Data Type:
xbrli:dateItemType
Balance Type:
na
Period Type:
duration
X
- Definition
The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.
+ References
No definition available.
+ Details
Name:
dei_DocumentType
Namespace Prefix:
dei_
Data Type:
dei:submissionTypeItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Address Line 1 such as Attn, Building Name, Street Name
+ References
No definition available.
+ Details
Name:
dei_EntityAddressAddressLine1
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Name of the City or Town
+ References
No definition available.
+ Details
Name:
dei_EntityAddressCityOrTown
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Code for the postal or zip code
+ References
No definition available.
+ Details
Name:
dei_EntityAddressPostalZipCode
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Name of the state or province.
+ References
No definition available.
+ Details
Name:
dei_EntityAddressStateOrProvince
Namespace Prefix:
dei_
Data Type:
dei:stateOrProvinceItemType
Balance Type:
na
Period Type:
duration
X
- Definition
A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2
+ Details
Name:
dei_EntityCentralIndexKey
Namespace Prefix:
dei_
Data Type:
dei:centralIndexKeyItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Indicate if registrant meets the emerging growth company criteria.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2
+ Details
Name:
dei_EntityEmergingGrowthCompany
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.
+ References
No definition available.
+ Details
Name:
dei_EntityFileNumber
Namespace Prefix:
dei_
Data Type:
dei:fileNumberItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Two-character EDGAR code representing the state or country of incorporation.
+ References
No definition available.
+ Details
Name:
dei_EntityIncorporationStateCountryCode
Namespace Prefix:
dei_
Data Type:
dei:edgarStateCountryItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
+ Details
Name:
dei_EntityListingsLineItems
Namespace Prefix:
dei_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2
+ Details
Name:
dei_EntityRegistrantName
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2
+ Details
Name:
dei_EntityTaxIdentificationNumber
Namespace Prefix:
dei_
Data Type:
dei:employerIdItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Local phone number for entity.
+ References
No definition available.
+ Details
Name:
dei_LocalPhoneNumber
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 13e
-Subsection 4c
+ Details
Name:
dei_PreCommencementIssuerTenderOffer
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 14d
-Subsection 2b
+ Details
Name:
dei_PreCommencementTenderOffer
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Title of a 12(b) registered security.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b
+ Details
Name:
dei_Security12bTitle
Namespace Prefix:
dei_
Data Type:
dei:securityTitleItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Name of the Exchange on which a security is registered.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection d1-1
+ Details
Name:
dei_SecurityExchangeName
Namespace Prefix:
dei_
Data Type:
dei:edgarExchangeCodeItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 14a
-Subsection 12
+ Details
Name:
dei_SolicitingMaterial
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Trading symbol of an instrument as listed on an exchange.
+ References
No definition available.
+ Details
Name:
dei_TradingSymbol
Namespace Prefix:
dei_
Data Type:
dei:tradingSymbolItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Securities Act
-Number 230
-Section 425
+ Details
Name:
dei_WrittenCommunications
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Details
Name:
us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
us-gaap_StatementClassOfStockAxis=qsi_RedeemableWarrantsEachWholeWarrantExercisableForOneShareOfClassACommonStockEachAtAnExercisePriceOf1150PerShareMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type: