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    Amendment: SEC Form SCHEDULE 13D/A filed by Quantum-Si Incorporated

    12/31/24 8:30:05 PM ET
    $QSI
    Industrial Machinery/Components
    Industrials
    Get the next $QSI alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13D

    Under the Securities Exchange Act of 1934

    (Amendment No. 3)*


    Quantum-Si Inc

    (Name of Issuer)


    Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share

    (Title of Class of Securities)


    74765K105

    (CUSIP Number)


    Jonathan M. Rothberg, Ph.D.
    c/o Quantum-Si Incorporated, 29 Business Park Drive
    Branford, CT, 06405
    (866) 688-7374

    (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
    12/27/2024

    (Date of Event Which Requires Filing of This Statement)


    If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

    The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






    SCHEDULE 13D

    CUSIP No.
    74765K105


    1 Name of reporting person

    ROTHBERG JONATHAN M
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    PF
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    UNITED STATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    11,972,645.00
    8Shared Voting Power

    2,190,489.00
    9Sole Dispositive Power

    11,972,645.00
    10Shared Dispositive Power

    2,190,489.00
    11Aggregate amount beneficially owned by each reporting person

    14,163,134.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    11.5 %
    14Type of Reporting Person (See Instructions)

    IN

    Comment for Type of Reporting Person:
    This Reporting Person's Table is for Class A common stock. Rows 7, 9 and 11 consists of (i) 2,568,443 shares of Class A common stock of Quantum-Si Incorporated (the ''Issuer'') held by Jonathan M. Rothberg, Ph.D., (ii) stock options to purchase 430,361 shares of Class A common stock of the Issuer which are exercisable within 60 days of December 27, 2024, held by Dr. Jonathan M. Rothberg, (iii) 2,723,841 shares of Class A common stock of the Issuer held by 2012 JMR Trust Common, LLC, and (iv) an aggregate of 6,250,000 shares of Class A common stock of the Issuer held by entities owned by trusts created for the benefit of Dr. Jonathan Rothberg's children, including shares of Class A common stock previously distributed from 2012 JMR Trust Common, LLC. Rows 8, 10 and 11 consists of (i) 1,917,067 shares of Class A common stock of the Issuer held by 23rd Century Capital LLC, and (ii) 273,422 shares of Class A common stock of the Issuer held by Dr. Jonathan Rothberg's spouse, Bonnie E. Gould Rothberg, M.D. Row 13 is calculated based on 122,775,352 shares of Class A common stock of the Issuer outstanding as of November 7, 2024.


    SCHEDULE 13D

    CUSIP No.
    74765K105


    1 Name of reporting person

    ROTHBERG JONATHAN M
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    PF
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    UNITED STATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    19,937,500.00
    8Shared Voting Power

    0.00
    9Sole Dispositive Power

    19,937,500.00
    10Shared Dispositive Power

    0.00
    11Aggregate amount beneficially owned by each reporting person

    19,937,500.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    100 %
    14Type of Reporting Person (See Instructions)

    IN

    Comment for Type of Reporting Person:
    This Reporting Person's Table is for Class B common stock. Rows 7, 9 and 11 consists of (i) 17,943,750 shares of Class B common stock of the Issuer held by 4C Holdings I, LLC and (ii) 1,993,750 shares of Class B common stock of the Issuer held by 4C Holdings V, LLC. Row 13 is calculated based on 19,937,500 shares of Class B common stock of the Issuer outstanding as of November 7, 2024.


    SCHEDULE 13D

    CUSIP No.
    74765K105


    1 Name of reporting person

    23rd Century Capital LLC
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    PF
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    8Shared Voting Power

    1,917,067.00
    9Sole Dispositive Power

    10Shared Dispositive Power

    1,917,067.00
    11Aggregate amount beneficially owned by each reporting person

    1,917,067.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    1.6 %
    14Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:
    This Reporting Person's table is for Class A common stock. Row 13 is calculated based on 122,775,352 shares of Class A common stock of the Issuer outstanding as of November 7, 2024.


    SCHEDULE 13D

    CUSIP No.
    74765K105


    1 Name of reporting person

    2012 JMR Trust Common, LLC
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    PF
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    8Shared Voting Power

    2,723,841.00
    9Sole Dispositive Power

    10Shared Dispositive Power

    2,723,841.00
    11Aggregate amount beneficially owned by each reporting person

    2,723,841.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    2.2 %
    14Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:
    This Reporting Person's table is for Class A common stock. Row 13 is calculated based on 122,775,352 shares of Class A common stock of the Issuer outstanding as of November 7, 2024.


    SCHEDULE 13D

    CUSIP No.
    74765K105


    1 Name of reporting person

    4C Holdings I, LLC
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    PF
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    8Shared Voting Power

    17,943,750.00
    9Sole Dispositive Power

    10Shared Dispositive Power

    17,943,750.00
    11Aggregate amount beneficially owned by each reporting person

    17,943,750.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    90 %
    14Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:
    This Reporting Person's table is for Class B common stock. Row 13 is calculated based on 19,937,500 shares of Class B common stock of the Issuer outstanding as of November 7, 2024.


    SCHEDULE 13D

    CUSIP No.
    74765K105


    1 Name of reporting person

    4C Holdings V, LLC
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    PF
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    8Shared Voting Power

    1,993,750.00
    9Sole Dispositive Power

    10Shared Dispositive Power

    1,993,750.00
    11Aggregate amount beneficially owned by each reporting person

    1,993,750.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    10 %
    14Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:
    This Reporting Person's table is for Class B common stock. Row 13 is calculated based on 19,937,500 shares of Class B common stock of the Issuer outstanding as of November 7, 2024.


    SCHEDULE 13D

    Item 1.Security and Issuer
    (a)Title of Class of Securities:

    Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share
    (b)Name of Issuer:

    Quantum-Si Inc
    (c)Address of Issuer's Principal Executive Offices:

    29 BUSINESS PARK DRIVE, BRANFORD, CONNECTICUT , 06405.
    Item 1 Comment:
    Explanatory Note This Amendment No. 3 to Schedule 13D (''Amendment No. 3'') amends and supplements the Schedule 13D dated June 18, 2021, as amended by Amendment No. 1 filed on September 13, 2023 and Amendment No. 2 filed on September 17, 2024 (collectively, as amended, the ''Schedule 13D'') relating to the Class A common stock, par value $0.0001 per share (''Class A common stock''), and Class B common stock, par value $0.0001 per share, of Quantum-Si Incorporated, a Delaware corporation (the ''Issuer''). Information reported in the Schedule 13D remains in effect except to the extent that it is amended, restated or superseded by information contained in this Amendment No. 3. Capitalized terms used but not defined herein have the meanings ascribed to them in the Schedule 13D. Item 1. Security and Issuer. There are no changes to the Item 1 information previously filed.
    Item 2.Identity and Background
    (a)
    There are no changes to the Item 2 information previously filed.
    Item 3.Source and Amount of Funds or Other Consideration
     
    There are no changes to the Item 3 information previously filed.
    Item 4.Purpose of Transaction
     
    There are no changes to the Item 4 information previously filed.
    Item 5.Interest in Securities of the Issuer
    (c)
    Item 5(c) of Schedule 13D is hereby amended and supplemented by adding the following: The transactions effected by the Reporting Persons in respect of the Class A common stock since the most recent filing of the Reporting Persons on Schedule 13D are set forth on the following table. All transactions below were effected by the Reporting Persons in connection with estate planning and pursuant to a Rule 10b5-1 trading plan (the "Plan") entered into on September 11, 2023. Transaction Date: 12/27/2024 Price Per Share(1): $3.3034 Price Per Share Range: $3.07 - 4.0697 Number of Shares(2): 3,337,015 Transaction Date: 12/27/2024 Price Per Share(1): $4.0959 Price Per Share Range: $4.07 - 4.135 Number of Shares(2): 169,252 (1) The prices shown are weighted average sale prices for shares sold in multiple transactions. The Reporting Person will provide to the Issuer, any security holder of the Issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the respective ranges. (2) The reported sales reflect the final sales effected pursuant to the Plan.
    Item 6.Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
     
    There are no changes to the Item 6 information previously filed.
    Item 7.Material to be Filed as Exhibits.
     
    There are no changes to the Item 7 information previously filed.

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    ROTHBERG JONATHAN M
     
    Signature:/s/ Jonathan M. Rothberg
    Name/Title:Jonathan M. Rothberg, Ph.D.
    Date:12/31/2024
     
    ROTHBERG JONATHAN M
     
    Signature:/s/ Jonathan M. Rothberg
    Name/Title:Jonathan M. Rothberg, Ph.D.
    Date:12/31/2024
     
    23rd Century Capital LLC
     
    Signature:/s/ Jonathan M. Rothberg
    Name/Title:Jonathan M. Rothberg, Ph.D., Member
    Date:12/31/2024
     
    2012 JMR Trust Common, LLC
     
    Signature:/s/ Jonathan M. Rothberg
    Name/Title:Jonathan M. Rothberg, Ph.D., Manager
    Date:12/31/2024
     
    4C Holdings I, LLC
     
    Signature:/s/ Jonathan M. Rothberg
    Name/Title:Jonathan M. Rothberg, Ph.D., Manager
    Date:12/31/2024
     
    4C Holdings V, LLC
     
    Signature:/s/ Jonathan M. Rothberg
    Name/Title:Jonathan M. Rothberg, Ph.D., Manager
    Date:12/31/2024
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    SEC Form SC 13G filed by Quantum-Si Incorporated

    SC 13G - Quantum-Si Inc (0001816431) (Subject)

    2/13/24 9:41:18 AM ET
    $QSI
    Industrial Machinery/Components
    Industrials